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Space-based radio telescope array

I’m wondering about the abilities of a technology: You may have heard of the Square Kilometer Array. The array is focused by adjusting the timing of the individual antennas. Q: Could this array be ...
Joe D's user avatar
  • 11
9 votes
1 answer
1k views

Identify T-shaped constellation

What is this T-shaped constellation? Never seen it before and it’s not on the map. The photo is made from south-west London facing west at 23-15 on 25.02.2023.
super.t's user avatar
  • 193
9 votes
1 answer
2k views

Can you tell me which star this is?

Back-story: My daughter, age 2, looked up in the Ohio sky (we have very poor star-viewing compared to Arizona) and pointed at a light. She said "what is that". I said "that is a star, ...
EngrStudent's user avatar
3 votes
2 answers
320 views

Are these Jupiter's moons?

Sorry for the huge picture), anyway, as you can see, there are 2 specks of light on either side of the upper planet which is likely Jupiter as the lower one is clearly Saturn-shaped. I was going ...
Avid_Cloud's user avatar
2 votes
0 answers
60 views

I saw a blinking light source, can someone explain it? [duplicate]

I was out watching the Perseids in the AM hours of August 11, 2018 from central Hungary. I brought my binoculars just in case I want to do regular stargazing. There was a blinking light directly ...
Firsh - justifiedgrid.com's user avatar
1 vote
1 answer
295 views

I saw a weird thing around Venus

I pointed my telescope (50mm aperture, 500mm focal length, 4mm eyepiece, image taken through a window) at Venus and saw this: What is it? I don't think this is Uranus or Neptune as my telescope is ...
user avatar
5 votes
2 answers
3k views

Two luminous points disappearing in the sky

I saw a few days ago two luminous points in the sky, which were quite close (about 1-2 degree of separation between them) and not apparently moving (or to slow to be noticed with the naked eye). The ...
Lexi Jones's user avatar
4 votes
1 answer
125 views

Which stars have I been seeing?

In the past mornings I have used to get out before sunrise for a stroll, to get some exercise while not meeting other people. I live in Eindhoven (NL), and I get out of home at around 5:30 AM, when ...
Curious wanderer's user avatar
2 votes
0 answers
39 views

Moving objects in the sky tonight 27th March 2020 [duplicate]

Multiple moving objects not in a line. The are staggered single line and in groups of two or three. One or two moved downward. They had a dim light orangey colour. It was not obvious that these ...
Janice McKenna's user avatar
1 vote
0 answers
45 views

Line of satellite like moving objects [duplicate]

Earlier this morning when I went outside to get a drink around 04:00 Tasmanian time (GMT +11), I saw a line of moving lights in the night sky. They were all moving at the same speed similar distances ...
Rodd's user avatar
  • 11
3 votes
1 answer
667 views

Why is this shooting star wavy or squiggly toward the end of it's visible streak

I was taking photos of some stars when I noticed this shooting star was wavy toward the end (start?) of it's trail. My cousin suggesting that it could be the CCD in my camera or as it spiralling as it ...
Michael Beamish's user avatar
1 vote
1 answer
610 views

Brightest most colorful star in eastern morning sky not near any constellations; rises about 4 or 5 am?

I have been believing this is Saturn, but perhaps Antares instead? It is so colorful it shines blue, red, green and white. It is largest in sky in the East before dawn rises about 4 or 5 AM, seen ...
Jane Myers's user avatar
0 votes
1 answer
135 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 ...
uhoh's user avatar
  • 30.7k
4 votes
1 answer
262 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 ...
miket's user avatar
  • 143