Questions tagged [identify-this-object]

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1answer
47 views

Does anybody recognize this kind of prism?

Supplemental to this answer to Did Edmund Scientific 4¼ inch Newtonians have 90° prisms as secondary mirrors in the 1970's? I was poking around a bit further and ran across this "1960's Edmund ...
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2answers
118 views

Why does this Lowell Observatory telescope have so many knobs? What do they all do?

The Fox News article Arizona city played critical role in moon exploration history covers several interesting activities that took place in Arizona in preparation for the Apollo Moon landings. It ...
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2answers
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Which Lowell Observatory telescope is this? (used to draw Moon maps for the Apollo program)

The Fox News article Arizona city played critical role in moon exploration history covers several interesting activities that took place in Arizona in preparation for the Apollo Moon landings. It ...
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1answer
85 views

dull rock/potato-shaped object seen with naked eye, moving in straight line during night. What could it be and is size and speed estimation possible? [closed]

Between years 2009-2011, I was located in Greece, watching the perfectly dark night sky around 21:00-23:00 during summer, when I suddenly noticed a very dull dark-brown object that looked like a solid ...
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0answers
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String of satellites [duplicate]

What appears to be a string of satellites moving nearly overhead towards NW at 10:30pm to 10:50pm Near Eagle River WI on Sun May 26, 2019. Was lead by 3 equally spaced (approx 1/2 in total length of ...
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0answers
39 views

Four Lights (star like) Moving in a Line Together [duplicate]

About 20 minutes ago, we saw four lights lined up and moving relatively quickly across the sky. These lights looked exactly like the stars around them - not red or blue or flashing or anything, just ...
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0answers
44 views

Strange lights moving North [duplicate]

So my fiance and I took our youngest sons out to sky watch at the river near by. The older of the 2 was looking up and said look it's Santa's reindeers! My fiancé and our youngest and I all looked up ...
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1answer
2k views

Line of lights moving in a straight line, with a few following

My husband and I have just seen a line of about 15 lights moving in a straight line, quite high above the cloud level with a gap, and then 5 lights, a gap, another few, a gap, 1 light, a gap, and a ...
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1answer
118 views

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
120 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
166 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
210 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
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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
153 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 ...
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1answer
134 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 ...
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1answer
278 views

How did they make a video of the center of the galaxy, and what is it exactly 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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1answer
66 views

A point of light moving between the stars [duplicate]

I noticed you replied to a question before about this topic and i came across your answer. Way back in the 80s when i was in my teens i saw a point of light moving between the stars at a steady rate ...
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2answers
130 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 ...
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1answer
60 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 ...
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1answer
242 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? The object would have to ...
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4answers
128 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
76 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
649 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. ...
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1answer
75 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 ...
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3answers
117 views

What is it that I have been seeing in the sky?

So I'm interested in space scientifically. I do have a firm belief that there could be intelligent civilizations in our universe. Just wanted to get that out of the way. I've been spending the ...
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0answers
33 views

Stars shape moving at night [duplicate]

A few days ago I saw more than 50 stars moving in a group at night in SW of Florida, what this could be satellites or something else?
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1answer
115 views

Is there a chance that UFOs could be messages from other planets? [closed]

Description Lots of people have thought to of seen UFOs (Unidentified Flying Objects), in fact, more than 83,000 have been reported this year alone. (and it's only February!) But most of the time it'...
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1answer
121 views

Unidentified color changing object in sky [duplicate]

Yesterday, I was just star gazing and I noticed some star-like object moving with a high speed somewhere near the Orion's Belt and exhibiting all the seven colors i.e VIBGYOR and after a few moments, ...
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0answers
24 views

A moving star at 6pm (Indonesia Time) [duplicate]

After I back from Minimart, it's about 6pm though, I saw the sky, yeah a beauty evening sky, but I sense a something weird from the sky, It look like a star at first it moving in low speed, I Though ...
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0answers
32 views

Blinking Star-Like object in the sky? What could it be? [duplicate]

I was out camping with my family at Crater Lake in Oregon. And I was looking up at the stars for a little while when I noticed a star-like object blink, then disappear. I thought I might have been ...
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1answer
2k views

I too saw a star like object moving across the sky it appeared to be a star moving! [duplicate]

I too saw a star like object moving across the sky from Bournemouth towards say Parkstone, it appeared to be a star moving for quite a long time until it disappeared from my view! I have seen this the ...
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1answer
3k views

Please help explain this unknown light in the sky. Not ISS. Not a star or comet. Too slow [duplicate]

So a few nights ago I walked outside on my front lawn and sat down on the tailgate of my truck. I was facing north. I was looking down and towards the house across the street. Out of no where a bright ...
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1answer
4k views

I saw an orange light in the sky which changed into flashing lights, what is this? [duplicate]

It's Saturday 15th July 2017 and currently 00:44. I saw this strange object at around 00:35. I was looking out my window and spotted a bright orange light moving at a steady speed across the sky, it ...
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1answer
135 views

A strange star-like object [duplicate]

So it was around 6 AM and i was looking at the sky and there were not many visible stars because the sun was about to rise. There were two stars that were brighter than the others and i was looking at ...
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1answer
251 views

Moving light in night sky

Today at about 2 am I have spotted a light very similar (perceived speed and apparent brightness, motion due East) to ISS. At very first I thought to have spotted the station but immediately I doubted ...
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1answer
213 views

What have I seen in the night sky

I was out taking some milky way pictures last night, and saw a much quicker shooting star type thing, only with a much more random movement - any ideas what this could be - this is the RAW file from ...
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1answer
187 views

I think I saw a satellite disappear? or was it a star?

so i was gazing out of my balcony randomly and all of a sudden this red light moves across above, initial thought was that it was a star but it didn't blink, second thoughts was maybe a planet but it ...
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2answers
2k views

Is a wavy path possible for a shooting star?

I was camping recently (May 2014), and observed several shooting stars (very fast, short lived), a few satellites (very slow, long lived) and lots of aircraft (flashing lights) in the night sky. All ...
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2answers
121 views

If NASA is going to capture an asteroid with a spacecraft, wouldn't a UFO be able to manuever a celestial body? [closed]

This article got me thinking If NASA is going to use our primitive space exploration technology to capture an asteroid wouldn't an Extra Terrestrial species have used UFO's to maneuver celestial ...