Can we see the USA flag on the Moon from Earth? [duplicate] Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30 pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?Were the Apollo lunar activities observed from Earth?How did the Apollo astronauts train for the 1/6G lunar landing?What is the marginal cost of *landing* on the Moon?Why didn't Apollo land on the Lunar poles?When Chang'e-3 landed on the moon, did LADEE notice?How might the Lunar X Prize contestant spacecraft have navigated their descent from orbit, to landing?What was learned from study of Surveyor-3's components, retrieved and returned to Earth by Apollo-12?What colors were used in the Apollo Lunar Module interior, and why?How would the Apollo telescope have worked in the Apollo command module? Where would it be located and how would it be operated?Was there a technical reason why Apollo 10 didn't land on the moon?Launch window for the Apollo Lunar Module?

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Can we see the USA flag on the Moon from Earth? [duplicate]



Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30 pm US/Eastern)
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?Were the Apollo lunar activities observed from Earth?How did the Apollo astronauts train for the 1/6G lunar landing?What is the marginal cost of *landing* on the Moon?Why didn't Apollo land on the Lunar poles?When Chang'e-3 landed on the moon, did LADEE notice?How might the Lunar X Prize contestant spacecraft have navigated their descent from orbit, to landing?What was learned from study of Surveyor-3's components, retrieved and returned to Earth by Apollo-12?What colors were used in the Apollo Lunar Module interior, and why?How would the Apollo telescope have worked in the Apollo command module? Where would it be located and how would it be operated?Was there a technical reason why Apollo 10 didn't land on the moon?Launch window for the Apollo Lunar Module?










3












$begingroup$



This question already has an answer here:



  • Were the Apollo lunar activities observed from Earth?

    3 answers



Is it possible one day to see landing site flags on the Moon from Earth or from space without having to land using a telescope as technology progresses?



Highly Related: Were the Apollo lunar activities observed from Earth?










share|improve this question











$endgroup$



marked as duplicate by Antzi, Jan Doggen, GremlinWranger, Manu H, Dr Sheldon Apr 17 at 11:52


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.













  • 1




    $begingroup$
    Title and body don't match.
    $endgroup$
    – Antzi
    Apr 17 at 5:44










  • $begingroup$
    @Antzi fixed it thanks.
    $endgroup$
    – Muze
    Apr 17 at 5:53






  • 1




    $begingroup$
    Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
    $endgroup$
    – peterh
    Apr 17 at 6:58










  • $begingroup$
    Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
    $endgroup$
    – Muze
    Apr 17 at 15:55






  • 1




    $begingroup$
    The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
    $endgroup$
    – Polygnome
    Apr 17 at 20:48
















3












$begingroup$



This question already has an answer here:



  • Were the Apollo lunar activities observed from Earth?

    3 answers



Is it possible one day to see landing site flags on the Moon from Earth or from space without having to land using a telescope as technology progresses?



Highly Related: Were the Apollo lunar activities observed from Earth?










share|improve this question











$endgroup$



marked as duplicate by Antzi, Jan Doggen, GremlinWranger, Manu H, Dr Sheldon Apr 17 at 11:52


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.













  • 1




    $begingroup$
    Title and body don't match.
    $endgroup$
    – Antzi
    Apr 17 at 5:44










  • $begingroup$
    @Antzi fixed it thanks.
    $endgroup$
    – Muze
    Apr 17 at 5:53






  • 1




    $begingroup$
    Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
    $endgroup$
    – peterh
    Apr 17 at 6:58










  • $begingroup$
    Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
    $endgroup$
    – Muze
    Apr 17 at 15:55






  • 1




    $begingroup$
    The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
    $endgroup$
    – Polygnome
    Apr 17 at 20:48














3












3








3





$begingroup$



This question already has an answer here:



  • Were the Apollo lunar activities observed from Earth?

    3 answers



Is it possible one day to see landing site flags on the Moon from Earth or from space without having to land using a telescope as technology progresses?



Highly Related: Were the Apollo lunar activities observed from Earth?










share|improve this question











$endgroup$





This question already has an answer here:



  • Were the Apollo lunar activities observed from Earth?

    3 answers



Is it possible one day to see landing site flags on the Moon from Earth or from space without having to land using a telescope as technology progresses?



Highly Related: Were the Apollo lunar activities observed from Earth?





This question already has an answer here:



  • Were the Apollo lunar activities observed from Earth?

    3 answers







the-moon lunar-landing observation space-telescope landing-site






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Apr 17 at 19:52







Muze

















asked Apr 17 at 4:32









MuzeMuze

1,4701368




1,4701368




marked as duplicate by Antzi, Jan Doggen, GremlinWranger, Manu H, Dr Sheldon Apr 17 at 11:52


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









marked as duplicate by Antzi, Jan Doggen, GremlinWranger, Manu H, Dr Sheldon Apr 17 at 11:52


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









  • 1




    $begingroup$
    Title and body don't match.
    $endgroup$
    – Antzi
    Apr 17 at 5:44










  • $begingroup$
    @Antzi fixed it thanks.
    $endgroup$
    – Muze
    Apr 17 at 5:53






  • 1




    $begingroup$
    Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
    $endgroup$
    – peterh
    Apr 17 at 6:58










  • $begingroup$
    Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
    $endgroup$
    – Muze
    Apr 17 at 15:55






  • 1




    $begingroup$
    The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
    $endgroup$
    – Polygnome
    Apr 17 at 20:48













  • 1




    $begingroup$
    Title and body don't match.
    $endgroup$
    – Antzi
    Apr 17 at 5:44










  • $begingroup$
    @Antzi fixed it thanks.
    $endgroup$
    – Muze
    Apr 17 at 5:53






  • 1




    $begingroup$
    Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
    $endgroup$
    – peterh
    Apr 17 at 6:58










  • $begingroup$
    Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
    $endgroup$
    – Muze
    Apr 17 at 15:55






  • 1




    $begingroup$
    The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
    $endgroup$
    – Polygnome
    Apr 17 at 20:48








1




1




$begingroup$
Title and body don't match.
$endgroup$
– Antzi
Apr 17 at 5:44




$begingroup$
Title and body don't match.
$endgroup$
– Antzi
Apr 17 at 5:44












$begingroup$
@Antzi fixed it thanks.
$endgroup$
– Muze
Apr 17 at 5:53




$begingroup$
@Antzi fixed it thanks.
$endgroup$
– Muze
Apr 17 at 5:53




1




1




$begingroup$
Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
$endgroup$
– peterh
Apr 17 at 6:58




$begingroup$
Directly from the Earth, the answer is no, but as the answer says, we can see it from Moon orbit.
$endgroup$
– peterh
Apr 17 at 6:58












$begingroup$
Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
$endgroup$
– Muze
Apr 17 at 15:55




$begingroup$
Although the other question is related it is not a duplicate it is talking about something a 1969. Where mine is asking for current technology.
$endgroup$
– Muze
Apr 17 at 15:55




1




1




$begingroup$
The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
$endgroup$
– Polygnome
Apr 17 at 20:48





$begingroup$
The revision doesn't make the question better, imho. The fundamental physical problems stay the same, and everything else is pure speculation. Its already possible to see it from space, you just need to get into a lunar orbit - the lower the better you can see it.
$endgroup$
– Polygnome
Apr 17 at 20:48











2 Answers
2






active

oldest

votes


















10












$begingroup$

I am not aware of an optical telescope capable of showing proof from earth. Part of the reason is the flags are pretty small and it's a very long distance. However, you can see the flags or what is left of them and the landing sites using images from the Lunar Reconnaissance Orbiter (LRO).



The LRO was able to use it's camera to document all of the Apollo landing sites. In 2011, Eric M. Jones collated the images to show the conditions of the landing sites and evidence of the condition flags was presented.



Apollo 11



Buzz Aldrin indicated he saw the flag knocked over on liftoff from the moon.



This quote was from the manufacturer:




Dennis Lacarrubba, whose New Jersey-based company, Annin, made the
flag

and sold it to NASA for $5.50 in 1969, considers what might happen to an
ordinary nylon flag left outside for 39 years on Earth, let alone on the moon.
He thinks for a few seconds. “I can’t believe there would be anything left,”
he concludes. “I gotta be honest with you. It’s gonna be ashes.”




Apollo 12



Apollo 12 flag



Apollo 14 and 15 had no evidence from the images of the flags. It was thought they may have been destroyed by the exhaust gases on liftoff.



Apollo 16



Apollo 16 Flag



Apollo 17



Apollo 17 flag



More Information



  • https://www.hq.nasa.gov/alsj/ApolloFlags-Condition.html





share|improve this answer











$endgroup$












  • $begingroup$
    Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
    $endgroup$
    – Jakuje
    Apr 17 at 12:04










  • $begingroup$
    @Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
    $endgroup$
    – gwally
    Apr 17 at 18:36


















12












$begingroup$

A flag would be about five hundred micro arcseconds. (about 1 meter, at around 375 Mm)



The Event Horizon Telescope has a resolution of about 20 micro arcseconds.



Therefore, EHT could resolve a flag on the surface of the moon if it were a radio source.



However, to view it optically would require around a 350 meter aperture. The largest 'single' telescope today is around 10 meters



The Cambridge Optical Aperture Synthesis Telescope (COAST) - the largest I'm aware of - can resolve to around 1000 micro arcseconds, so wouldn't be able to see a flag.






share|improve this answer











$endgroup$








  • 2




    $begingroup$
    oops, previous answer was out by a $10^3$, changing the outcome.
    $endgroup$
    – JCRM
    Apr 17 at 9:02










  • $begingroup$
    hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
    $endgroup$
    – undefined
    Apr 17 at 9:58






  • 1




    $begingroup$
    That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
    $endgroup$
    – JCRM
    Apr 17 at 10:26










  • $begingroup$
    oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
    $endgroup$
    – undefined
    Apr 17 at 10:30

















2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









10












$begingroup$

I am not aware of an optical telescope capable of showing proof from earth. Part of the reason is the flags are pretty small and it's a very long distance. However, you can see the flags or what is left of them and the landing sites using images from the Lunar Reconnaissance Orbiter (LRO).



The LRO was able to use it's camera to document all of the Apollo landing sites. In 2011, Eric M. Jones collated the images to show the conditions of the landing sites and evidence of the condition flags was presented.



Apollo 11



Buzz Aldrin indicated he saw the flag knocked over on liftoff from the moon.



This quote was from the manufacturer:




Dennis Lacarrubba, whose New Jersey-based company, Annin, made the
flag

and sold it to NASA for $5.50 in 1969, considers what might happen to an
ordinary nylon flag left outside for 39 years on Earth, let alone on the moon.
He thinks for a few seconds. “I can’t believe there would be anything left,”
he concludes. “I gotta be honest with you. It’s gonna be ashes.”




Apollo 12



Apollo 12 flag



Apollo 14 and 15 had no evidence from the images of the flags. It was thought they may have been destroyed by the exhaust gases on liftoff.



Apollo 16



Apollo 16 Flag



Apollo 17



Apollo 17 flag



More Information



  • https://www.hq.nasa.gov/alsj/ApolloFlags-Condition.html





share|improve this answer











$endgroup$












  • $begingroup$
    Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
    $endgroup$
    – Jakuje
    Apr 17 at 12:04










  • $begingroup$
    @Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
    $endgroup$
    – gwally
    Apr 17 at 18:36















10












$begingroup$

I am not aware of an optical telescope capable of showing proof from earth. Part of the reason is the flags are pretty small and it's a very long distance. However, you can see the flags or what is left of them and the landing sites using images from the Lunar Reconnaissance Orbiter (LRO).



The LRO was able to use it's camera to document all of the Apollo landing sites. In 2011, Eric M. Jones collated the images to show the conditions of the landing sites and evidence of the condition flags was presented.



Apollo 11



Buzz Aldrin indicated he saw the flag knocked over on liftoff from the moon.



This quote was from the manufacturer:




Dennis Lacarrubba, whose New Jersey-based company, Annin, made the
flag

and sold it to NASA for $5.50 in 1969, considers what might happen to an
ordinary nylon flag left outside for 39 years on Earth, let alone on the moon.
He thinks for a few seconds. “I can’t believe there would be anything left,”
he concludes. “I gotta be honest with you. It’s gonna be ashes.”




Apollo 12



Apollo 12 flag



Apollo 14 and 15 had no evidence from the images of the flags. It was thought they may have been destroyed by the exhaust gases on liftoff.



Apollo 16



Apollo 16 Flag



Apollo 17



Apollo 17 flag



More Information



  • https://www.hq.nasa.gov/alsj/ApolloFlags-Condition.html





share|improve this answer











$endgroup$












  • $begingroup$
    Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
    $endgroup$
    – Jakuje
    Apr 17 at 12:04










  • $begingroup$
    @Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
    $endgroup$
    – gwally
    Apr 17 at 18:36













10












10








10





$begingroup$

I am not aware of an optical telescope capable of showing proof from earth. Part of the reason is the flags are pretty small and it's a very long distance. However, you can see the flags or what is left of them and the landing sites using images from the Lunar Reconnaissance Orbiter (LRO).



The LRO was able to use it's camera to document all of the Apollo landing sites. In 2011, Eric M. Jones collated the images to show the conditions of the landing sites and evidence of the condition flags was presented.



Apollo 11



Buzz Aldrin indicated he saw the flag knocked over on liftoff from the moon.



This quote was from the manufacturer:




Dennis Lacarrubba, whose New Jersey-based company, Annin, made the
flag

and sold it to NASA for $5.50 in 1969, considers what might happen to an
ordinary nylon flag left outside for 39 years on Earth, let alone on the moon.
He thinks for a few seconds. “I can’t believe there would be anything left,”
he concludes. “I gotta be honest with you. It’s gonna be ashes.”




Apollo 12



Apollo 12 flag



Apollo 14 and 15 had no evidence from the images of the flags. It was thought they may have been destroyed by the exhaust gases on liftoff.



Apollo 16



Apollo 16 Flag



Apollo 17



Apollo 17 flag



More Information



  • https://www.hq.nasa.gov/alsj/ApolloFlags-Condition.html





share|improve this answer











$endgroup$



I am not aware of an optical telescope capable of showing proof from earth. Part of the reason is the flags are pretty small and it's a very long distance. However, you can see the flags or what is left of them and the landing sites using images from the Lunar Reconnaissance Orbiter (LRO).



The LRO was able to use it's camera to document all of the Apollo landing sites. In 2011, Eric M. Jones collated the images to show the conditions of the landing sites and evidence of the condition flags was presented.



Apollo 11



Buzz Aldrin indicated he saw the flag knocked over on liftoff from the moon.



This quote was from the manufacturer:




Dennis Lacarrubba, whose New Jersey-based company, Annin, made the
flag

and sold it to NASA for $5.50 in 1969, considers what might happen to an
ordinary nylon flag left outside for 39 years on Earth, let alone on the moon.
He thinks for a few seconds. “I can’t believe there would be anything left,”
he concludes. “I gotta be honest with you. It’s gonna be ashes.”




Apollo 12



Apollo 12 flag



Apollo 14 and 15 had no evidence from the images of the flags. It was thought they may have been destroyed by the exhaust gases on liftoff.



Apollo 16



Apollo 16 Flag



Apollo 17



Apollo 17 flag



More Information



  • https://www.hq.nasa.gov/alsj/ApolloFlags-Condition.html






share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 17 at 18:40

























answered Apr 17 at 5:30









gwallygwally

54138




54138











  • $begingroup$
    Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
    $endgroup$
    – Jakuje
    Apr 17 at 12:04










  • $begingroup$
    @Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
    $endgroup$
    – gwally
    Apr 17 at 18:36
















  • $begingroup$
    Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
    $endgroup$
    – Jakuje
    Apr 17 at 12:04










  • $begingroup$
    @Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
    $endgroup$
    – gwally
    Apr 17 at 18:36















$begingroup$
Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
$endgroup$
– Jakuje
Apr 17 at 12:04




$begingroup$
Interesting, but not expolicitly answering the question. Yes, you can see a flag shadows from moon orbit, but the question was about the flag and about the observation source Earth.
$endgroup$
– Jakuje
Apr 17 at 12:04












$begingroup$
@Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
$endgroup$
– gwally
Apr 17 at 18:36




$begingroup$
@Muse seems to think the moon landings were faked. I posted this to show there are photos of the landing sites. I'll add the fact you can't see them from the earth.
$endgroup$
– gwally
Apr 17 at 18:36











12












$begingroup$

A flag would be about five hundred micro arcseconds. (about 1 meter, at around 375 Mm)



The Event Horizon Telescope has a resolution of about 20 micro arcseconds.



Therefore, EHT could resolve a flag on the surface of the moon if it were a radio source.



However, to view it optically would require around a 350 meter aperture. The largest 'single' telescope today is around 10 meters



The Cambridge Optical Aperture Synthesis Telescope (COAST) - the largest I'm aware of - can resolve to around 1000 micro arcseconds, so wouldn't be able to see a flag.






share|improve this answer











$endgroup$








  • 2




    $begingroup$
    oops, previous answer was out by a $10^3$, changing the outcome.
    $endgroup$
    – JCRM
    Apr 17 at 9:02










  • $begingroup$
    hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
    $endgroup$
    – undefined
    Apr 17 at 9:58






  • 1




    $begingroup$
    That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
    $endgroup$
    – JCRM
    Apr 17 at 10:26










  • $begingroup$
    oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
    $endgroup$
    – undefined
    Apr 17 at 10:30















12












$begingroup$

A flag would be about five hundred micro arcseconds. (about 1 meter, at around 375 Mm)



The Event Horizon Telescope has a resolution of about 20 micro arcseconds.



Therefore, EHT could resolve a flag on the surface of the moon if it were a radio source.



However, to view it optically would require around a 350 meter aperture. The largest 'single' telescope today is around 10 meters



The Cambridge Optical Aperture Synthesis Telescope (COAST) - the largest I'm aware of - can resolve to around 1000 micro arcseconds, so wouldn't be able to see a flag.






share|improve this answer











$endgroup$








  • 2




    $begingroup$
    oops, previous answer was out by a $10^3$, changing the outcome.
    $endgroup$
    – JCRM
    Apr 17 at 9:02










  • $begingroup$
    hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
    $endgroup$
    – undefined
    Apr 17 at 9:58






  • 1




    $begingroup$
    That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
    $endgroup$
    – JCRM
    Apr 17 at 10:26










  • $begingroup$
    oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
    $endgroup$
    – undefined
    Apr 17 at 10:30













12












12








12





$begingroup$

A flag would be about five hundred micro arcseconds. (about 1 meter, at around 375 Mm)



The Event Horizon Telescope has a resolution of about 20 micro arcseconds.



Therefore, EHT could resolve a flag on the surface of the moon if it were a radio source.



However, to view it optically would require around a 350 meter aperture. The largest 'single' telescope today is around 10 meters



The Cambridge Optical Aperture Synthesis Telescope (COAST) - the largest I'm aware of - can resolve to around 1000 micro arcseconds, so wouldn't be able to see a flag.






share|improve this answer











$endgroup$



A flag would be about five hundred micro arcseconds. (about 1 meter, at around 375 Mm)



The Event Horizon Telescope has a resolution of about 20 micro arcseconds.



Therefore, EHT could resolve a flag on the surface of the moon if it were a radio source.



However, to view it optically would require around a 350 meter aperture. The largest 'single' telescope today is around 10 meters



The Cambridge Optical Aperture Synthesis Telescope (COAST) - the largest I'm aware of - can resolve to around 1000 micro arcseconds, so wouldn't be able to see a flag.







share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 17 at 11:05

























answered Apr 17 at 9:01









JCRMJCRM

3,63321133




3,63321133







  • 2




    $begingroup$
    oops, previous answer was out by a $10^3$, changing the outcome.
    $endgroup$
    – JCRM
    Apr 17 at 9:02










  • $begingroup$
    hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
    $endgroup$
    – undefined
    Apr 17 at 9:58






  • 1




    $begingroup$
    That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
    $endgroup$
    – JCRM
    Apr 17 at 10:26










  • $begingroup$
    oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
    $endgroup$
    – undefined
    Apr 17 at 10:30












  • 2




    $begingroup$
    oops, previous answer was out by a $10^3$, changing the outcome.
    $endgroup$
    – JCRM
    Apr 17 at 9:02










  • $begingroup$
    hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
    $endgroup$
    – undefined
    Apr 17 at 9:58






  • 1




    $begingroup$
    That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
    $endgroup$
    – JCRM
    Apr 17 at 10:26










  • $begingroup$
    oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
    $endgroup$
    – undefined
    Apr 17 at 10:30







2




2




$begingroup$
oops, previous answer was out by a $10^3$, changing the outcome.
$endgroup$
– JCRM
Apr 17 at 9:02




$begingroup$
oops, previous answer was out by a $10^3$, changing the outcome.
$endgroup$
– JCRM
Apr 17 at 9:02












$begingroup$
hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
$endgroup$
– undefined
Apr 17 at 9:58




$begingroup$
hope it's not offtopic but would it be possible to couple optical telescopes in the same way the EHT did?
$endgroup$
– undefined
Apr 17 at 9:58




1




1




$begingroup$
That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
$endgroup$
– JCRM
Apr 17 at 10:26




$begingroup$
That's largely what COAST does @undefined, except optically not analytically. To complicate things, one also needs to collect enough light to see it, so it would need a large collection surface, as well as aperture (even with long exposure times)
$endgroup$
– JCRM
Apr 17 at 10:26












$begingroup$
oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
$endgroup$
– undefined
Apr 17 at 10:30




$begingroup$
oh thank you, JCRM. I thought the COAST is only one large telescope and not many. Thank you :)
$endgroup$
– undefined
Apr 17 at 10:30



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