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Questions tagged [identify-this-object]

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2
votes
1answer
78 views

What soviet telescope is this?

A friend has a vintage telescope with a broken lens, I asked him to send me its catalog so I can see if I can buy him a new one, he gave me what looks like a Russian catalog, it seems a soviet ...
6
votes
1answer
129 views

How did they make a video of the center of the galaxy, and what is it exaclty that's flashing there?

The ESA video ESOcast 173: First Successful Test of Einstein’s General Relativity Near Supermassive Black Hole includes a clip of images of stars at the center of our galaxy orbiting around SgrA*, a ...
1
vote
2answers
123 views

Is there a name for this type of orbit of a natural satellite?

Is there a name for the orbit of a natural satellite of a planet who's period is the same as the rotational period of the planet, but the orbital motion has the opposite sense than the planet's ...
0
votes
1answer
49 views

What telescope might this be a model of, with Sir Fred Hoyle?

The BBC article Archaeopteryx: The day the fossil feathers flew has nothing to do with Astronomy but it shows a file photo of the famous astronomer Sir Fred Hoyle with a model of what looks like some ...
-5
votes
1answer
208 views

What is this elliptical orbit?

Most natural elliptical orbits are one sided as shown below from wiki. What is an elliptical orbit where perigee and apogee are closer to being equal in distance than not? I have learned that this ...
4
votes
4answers
118 views

How to figure out what something in the sky is?

A while ago I saw something in the sky early in the evening. At first, I thought it was a plane since it seemed far too bright to be a star - no other stars could be seen. However, it didn't move, so ...
0
votes
1answer
63 views

Planet with acid ice caps

I remember reading an old astronomy book mentioning a certain planet and the main point of interest was that this planet has or may have polar ice caps but of acid. I can't remember the name though, ...
6
votes
2answers
586 views

Which telescopes model is being shown to Albert Einstein in this file footage? What event might this be?

In the Economist video Why does time pass? there is some file footage of Albert Einstein attending some event where a model of a large telescope is on display, and being described to Prof. Einstein. ...
2
votes
1answer
69 views

What bright body is next to the Moon in these photos of the ISS transiting the lunar disk?

The question What are the chances that the ISS transits the moon as seen from your house (or headquarters)? links to the SpaceX Instagram-posted photos of the ISS transiting the Moon's disk as seen ...