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Questions tagged [identify-this-object]

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1answer
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Power spectrum of matter in the Universe

I have a picture of a power spectrum of matter in the Universe. What is the connection to Lyman alpha? Please describe it for me (horizontal and vertical and shape).
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1answer
118 views

What is the farthest we can see into the universe?

Is there a limit in which the mass in space obscure the ability to detect anything farther even as technology progresses? Related: Can the range of the observable universe be extended through an ...
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1answer
159 views

Is this the best non-radio image of whatever's at the center of M87? How was it taken?

The BBC News article First ever black hole image released shows the instantly-iconic radio image of the (almost certainly) supermassive black hole at the center of the M87 galaxy, just released by the ...
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0answers
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What is the ice on Mars made of?

What are the average ratio of solid $H_2O$ to $CO_2$ and other molecules found in the Ice of Mars? Do these ratios change with temperature, depth, weather pattern and/or pockets of either. I imagine ...
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2answers
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MeerKAT's Epic Image of the Galactic Centre, what are we seeing?

In this answer as well as this one, I've linked to New Jersey Institute of Technology's Dr. Dale Gary's nicely-written Physics 728 Radio Astronomy; Lecture #1 notes where I can see the image below. It ...
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1answer
201 views

What's the object in the sky?

Days before, I saw this pic. I don't know what it is. Edit: This pic was taken by a Taoist at an ancient ruins in Mongolia on 2012-07-15 04:12 UTC+8 (day break). He said it looked strange. Edit: I ...
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2answers
75 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 ...
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3answers
143 views

Can Earth be ejected out of the solar system this way?

I found this image of what maybe a model of our solar system. Without a credible source I'm not sure I am looking at a star or black hole that comes close to our solar system and how it could throw ...
2
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1answer
106 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 ...
7
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1answer
148 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 ...
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2answers
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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 ...
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1answer
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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 ...
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1answer
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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? The object would have to ...
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4answers
125 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 ...
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1answer
71 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, ...
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2answers
644 views

Which telescope's 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. ...
3
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1answer
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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 ...