Astronomy Stack Exchange
Astronomy Stack Exchange

Questions tagged [artificial-satellite]

Questions about man-made objects orbiting astronomical objects.

A satellite is an object that orbits another object. In space, satellites may be made by man, or they may be natural. Most man-made satellites also orbit the Earth, but some orbit other planets, such as Saturn, Venus or Mars, or the moon.

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Help identify a bright and round object photographed through a telescope

It was a brightest object in the sky. Attached is the picture taken on 25th January around 6pm in Riga / Latvia, towards the south direction: Apologies for a quality of the picture, the telescope was inside the flat and the picture was taken through…
Datageek
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If Apophis hits spacejunk in 2029 near the Earth is it possible that it could in theory make the asteroid fall into Earth?

Would the Apophis asteroid fall to Earth in 2029 due to space junk from broken rockets falling into the asteroid and impacting it, effectively exerting a sort of frictional force in a sense to the asteroid kind of like air resistance does? Would…
MiltonTheMeme
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What bright satellite did I see pass near the Tiangong space station on the morning of 2/15?

What bright satellite or other spacecraft did I see pass near the Tiangong space station on the morning of 2/15? (I've ruled out the International Space Station, as that was in view a few minutes earlier.) Location-- Wichita KS Time-- around 6:32:30…
quiet flyer
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how do I read grades for knowing where I have to look for watching the ISS?

I want to watch the ISS with naked eye using this tool NASA gives https://spotthestation.nasa.gov/sightings/view.cfm?country=Argentina®ion=None&city=Santa_Fe#.WCRzKS3hC1s but I dont know how to read grades in the sense of which direction I have…
Pablo
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Calculating Postition of ISS / Hubble in space

How do I calculate the positions of above satellite in space ?
Connor Verlekar
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Can any satellite train still be seen?

I "missed the train" on the Starlink satellites last year, and now it looks like they've separated, and the conservative voices convinced Space X to darken new ones with visors or paint. Is it still possible to see 2 or more satellites moving in the…
Dan Dascalescu
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Bright star or flare near orion?

This morning at 6:12 am looking south from Georgetown, Texas, there was a brief very bright stationary object what appeared to be a star that once I saw it within the next few seconds quickly vanished. Did not appear to be other than a stationary…
Jerry
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Strange object crossing the sky

Was stargazing last night and spotted an object traversing the sky from roughly East to West. It had a bright light that was intermittently flashing but with three different intensities. The "third" flash was really bright like a camera flash. Never…
George Cragg
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How much delta-v does a typical geostationary satellite carry?

I'm wondering - how much delta-v do typical geostationary satellites carry with them once they get into the orbit for things like orbital adjustment or movement to the graveyard orbit?
ThePiachu
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Why do GPS satellites move in relation to earth's surface?

Wouldn't it be easier with geostationary satellites? Has is to do with the monitoring of gamma-ray bursts?
F.H.
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Moving object seen through telescope, what is it?

I was using my telescope to look at a nebula, intell I seen a star like object that was moving at a moderate speed in a straight line and eventually dimmed out. My first thought that it was just a satellite but I could only see it through my…
Maxwell Crafard
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I saw a Straight 30 lights line above night sky this evening, around 7:30pm,march 16,2024 that flying light objects goes to the moon then gone

I saw a Straight 30 lights line above night sky this evening, around 7:30pm,march 16,2024 at the country of Oman, location Al Qurum beach . that flying light objects goes to the moon then gone,I'm not tue only one that i saw that straight lines…
DRENDSZ FIT
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What are the small things, look like stars, moving in the sky?

I have always been observing something that looks like a star but not as bright as a star moving from south to north at the same time every night. What is it? It cannot be a star because I know stars do not move.
d.daniel
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