Questions tagged [iss]

Most questions about the International Space Station belong on Space Exploration Stack Exchange.

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How do go about seeing or photographing the ISS in front of the moon or sun?

I have the following telescope and kind of know how to set it up to look at the moon or sun (with filter of course). Other than that I am pretty much a total astronomy noob. Besser® Reflector ...
bitbonk's user avatar
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5 votes
1 answer
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What's the brightest magnitude that the ISS can appear from Earth's surface?

Heavens-above indicates that this evening, it will fly almost over my head (79°) with a sizzling magnitude of -3.9. What is the maximum brightness it can have? Is there a formula to calculate its ...
longtry's user avatar
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3 votes
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Details on the telescope(s) on the Chinese Space Station 天和

The ISS has a telescope on board. Does the Chinese Space Station have one on board as well? I heard about Xuntian aka Chinese Space Station Telescope (CSST), but not too many details. Would that be ...
B--rian's user avatar
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2 votes
1 answer
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Was it a space station?

I just looked at the sky and saw a star, not so bright but moving very fast and in almost a minute it disappeared, as it was so fast. Timing was in between 9.35-9.45 PM in Nuremberg, Germany. My ...
Ganesh Dasmale's user avatar
3 votes
3 answers
252 views

What's the cheapest lens to buy for showing ISS to a flat earther?

Recently I entered a discussion with someone that has a relatively popular YouTube channel which says among other things that the earth is flat. I said that earth isn't flat because you can see the ...
PPP's user avatar
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2 votes
2 answers
2k views

How to calculate phase angle of a satellite?

I'm making a program for predicting satellite passes. I'm trying to find out if the satellite is illuminated by the Sun and not in Earth's shadow. I need to know its phase angle: the angle between the ...
sunl1t's user avatar
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8 votes
3 answers
2k views

Attach a visible light telescope to the outside of the ISS

Visible light imaging of the heavens is limited on Earth primarily due to the atmosphere. I know the ISS is moving at 17000mph, but given the delays to the James Webb telescope, is there any merit in ...
TopCat's user avatar
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2 votes
2 answers
112 views

Did I see the dragon capsule on Friday night?

I live just south of Sydney Australia, and I went outside to watch the ISS pass overhead on Friday night. The ISS was following a smaller object easily visible to the naked eye. Sydney time 20.43 or ...
Dave 's user avatar
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3 votes
1 answer
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Extract anomalies from two-line element set (TLE) on ISS (International Space Station)

I am faced to a problem of interpretation illustrated on figure below : From wikipedia : Two-line element definition, I can extract the following meaning anomaly : 308.7017 ° (in degrees) But in ...
user avatar
9 votes
2 answers
3k views

Calculating the apparent magnitude of a satellite

I'm writing a program that involves calculating the apparent magnitude of satellites from a ground location. I currently have the intrinsic magnitude of the satellites and the solar phase angle in ...
Nick Brown's user avatar
3 votes
1 answer
433 views

How to calculate the position to be to see ISS passing in front of the moon or the sun?

I would like to know how to calculate the time/date of the ISS passing in front of the moon (between the observer and the moon) or the sun, or to calculate the position in which the observer have to ...
Matthieu Charbonnier's user avatar
2 votes
1 answer
91 views

What is this antenna on the ISS? [closed]

And why is it moving? Doesn't make very much sense to me, a moving antenna. Or is it kind of radar that is checking for dangerous objects? These are screen shots from this YouTube video.
Luky's user avatar
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2 votes
1 answer
461 views

How much time does the ISS take to repeat its orbit?

I used to go to my roof to see the ISS, but it is not always visible. Then it appears again but does it appear with the exact same orbit as I saw before? Thanks!
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