Questions tagged [constellations]

Questions about patterns formed by group of prominent stars in the night sky.

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How many of the zodiac constellations can we see during the summer solstice?

I've read on James Evans' excellent "The History and Practice of Ancient Astronomy" that it is possible to see (at night) 6 zodiac constellations all year round, even during the summer ...
Adrien Hingert's user avatar
13 votes
1 answer
856 views

Why are IAU constellation boundaries not rectilinear?

According to https://www.iau.org/public/themes/constellations/ Eugène Delporte of the Royal Observatory in Brussels presented proposals for a clearly defined system of constellation boundaries drawn ...
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Orion constellation shape

In textbook "Orion constellation the four bright stars appear to be arranged in the form of a quadrilateral" and I found in internet when I searched "Four stars Rigel, Betelgeuse, ...
Nandy's user avatar
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0 answers
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How did ancient people call this still a twin?

In the more modern images of the constellation Gemini it more looks like a twin: But in the old images when ancient people mentioned it, it doesn't look like a twin at all. But it was still called ...
Snack Exchange's user avatar
2 votes
1 answer
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It's 12 June 2023, almost 11 PM... location: Chitral, KPK, Pakistan. What constellations, celestial objects can you identify in this picture. Help

This picture is taken from Chitral District of KPK, Pakistan... Time: 12 June 2023, 11PM approximately ...I want you to tell me what constellations, celestial objects can you identify in it?
Khalil Ur Rehman's user avatar
10 votes
3 answers
1k views

Where are Modern Constellation lines defined?

In an astronomy app name SkyPortal you can see the constellation lines as Modern or Traditional lines. The traditional ones rarely have a resemblance to what they are a symbol of. However, the modern ...
Real Dreams's user avatar
16 votes
2 answers
3k views

Why are sometimes the brightest star of a constellation not named alpha?

From the Wikipedia page of Alpha Ursae Majoris: Alpha Ursae Majoris, Latinised from α Ursae Majoris, formally named Dubhe /ˈdʌbiː/, is, despite being designated "α" (alpha), the second-...
Snack Exchange's user avatar
4 votes
1 answer
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Do all the planets travel along the same constellations?

If humans ever moved to another planet in this solar-system, what constellations would the sun meet from that perspective? What constellations would the sun look like it is meeting from the ...
Atlas's user avatar
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8 votes
1 answer
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Why do some images depict the same constellations differently?

For example, in some images of the constellation Gemini, it is depicted as some sort of strange-looking elongated rectangular sunfish (see Image 1), while in others, it looks like two distinct ...
scijam's user avatar
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3 votes
1 answer
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Why alpha Andromedae is also known as 21 Andromedae?

I'm revising the Hipparcos catalogue and I've found that alpha Andromeda and 21 Andromedae has the same HIP (677). Why alpha Andromedae is also known as 21 Andromedae?
VansFannel's user avatar
1 vote
3 answers
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Do the inner-Earth planets actually align with the constellations we see?

For example, because the Sun is the center of the solar system; when we think that the Sun is on the constellation of Aries, in actuality, isn't Earth lining up with the constellation opposite Aries: ...
Atlas's user avatar
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11 votes
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Small bright constellation on the photo

I did a photo of the night sky and wanted to find a constellation on it. I've suggestion that it is Delphinus constellation. Could you please help me figure it out. Also, I'm curios about good way to ...
pacman's user avatar
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1 answer
87 views

Finding ones way around the sky

Thinking about this recent question Identify T-shaped constellation the first thing I have to say is that I applaud the poster for actually looking up and noticing the stars: something that becomes ...
Mark Morgan Lloyd's user avatar
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
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What is this drawing about in "kitab al bulhan"?

Kitab al bulhan or "book of surprises" is medieval Persian manuscript written in Arabic. According to Wikipedia: The contents include subjects on astronomy, astrology and geomancy, ...
SamiM's user avatar
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3 votes
1 answer
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Knowing what time to observe a constellation

Suppose you observe a particular constellation at 11 PM on a particular day at what time will you need to observe 2 months later to find the constellation in the same position as in the sky chart?
James's user avatar
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7 votes
1 answer
594 views

Locate stars in sky from list of (x, y) co-ordinates

Imagine we have a photographic plate that clearly shows a few stars, but we do not know where in the sky these stars are located. We can digitize the location of stars on this plate and now have a set ...
Matthew's user avatar
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3 votes
1 answer
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The constellations in “Powers of Ten”

I watched a video called Powers of Ten made in the 70s. It starts from a view of an area in Chicago and moves the "camera" away from the ground towards the space. At 3m15s of the video, the ...
Elon's user avatar
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4 votes
0 answers
255 views

Software to create star maps with custom asterism lines?

I would like to be able to create star maps and charts, but define my own sets of “constellation” lines. I imagine I would need to provide an input file containing pairs of stars which would be ...
Bruce Simonson's user avatar
6 votes
2 answers
246 views

Identifying Constellations from Sky Maps

In Such sky maps How to identify constellation in those blocks?The just seems to me like Random figures. Please suggest some good sources where I can study this?
Particle king's user avatar
-1 votes
1 answer
562 views

Why are there 12 zodiac signs?

My friend and I are arguing whether it is because there are 12 months or there are 12 constellations along this path. It makes more sense to me that, since there are 12 months, they divided the path ...
eral's user avatar
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3 votes
2 answers
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On other planets, does the sun appear to pass through the same zodiac constellations?

Seen from Earth, the sun travels on a year-long orbit across the celestial sphere, passing through the twelve zodiac constellations. As I understand it, this path depends on our orbital plane---if our ...
user326210's user avatar
1 vote
3 answers
126 views

Constellation search from April 22 2007 [duplicate]

I need help. I am trying to find the night sky on April 22, 2007, over Memphis, TN. I know that there has to be some way to find it, and I am at a loss.
Isabel Giraldo's user avatar
0 votes
2 answers
316 views

What is use of Greek Letters in Astronomy? [closed]

We see letters such as $\epsilon$ or $\alpha$ or $\beta$ or $\eta$ etc... (possibly all Greek letters) Can Somebody state the use of all Greek letters in astronomy?
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3 votes
1 answer
538 views

How did the ancients know the constellation in which the sun is located?

The zodiac constellations lie along the plane of the ecliptic. In Spring equinox, sun lies in Pisces constellations. So Pisces is not visible during the day (because the sun light) and not visible in ...
MABC's user avatar
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18 votes
3 answers
4k views

How are constellations intact if the stars are rotating around galactic nuclei?

From what I understood, the Milky Way (or stars in the Milky Way) doesn't rotate like a collection of points in a disc due to the presence of some invisible matter. In theory, the angular velocities ...
Muhammed Roshan's user avatar
2 votes
1 answer
522 views

How do I find out when a constellation reached its zenith?

I found this website to look at the sky at the specific time and location: http://www.fourmilab.ch/cgi-bin/Yoursky - you can insert latitude and longitude and time to see how the skies looked at any ...
Dmitriy Isakov's user avatar
5 votes
2 answers
212 views

Constellation a celestial body is in

Given its right ascension and declination, find out the constellation a celestial body is in. Does anyone know of an algorithm (C#, js) for that? It would read the constellation boundaries (e.g. ...
Ricardo's user avatar
  • 63
2 votes
1 answer
250 views

Has this image of the Draco Constellation been altered

Have the stars in this photo of the Draco Constellation been magnified so as to help me see the Draco or not? Also I really like [this image][2] of Orion; if someone knows of a site with a lot of ...
bobsmith76's user avatar
9 votes
3 answers
2k views

What Constellation Is This? (Photo Included)

Observed on 9th of Jan 2021 in Newcastle Upon Tyne (UK) looking WSW at a little after Midnight.
Undistraction's user avatar
5 votes
3 answers
997 views

What is this constellation?

Every night I see this constellation from my window but I can't identify it. What is this constellation called? Also, it would be helpful if you could clarify on the other stars as well. Actual photo: ...
Lau's user avatar
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14 votes
3 answers
8k views

Does this photo show the "Little Dipper" and "Big Dipper"?

There are two clusters of stars that I always thought were the Big Dipper and Little Dipper. But after looking at images of the Little Dipper and Big Dipper online, I am not too sure if that's what ...
Cave Johnson's user avatar
1 vote
1 answer
2k views

Why isn't the constellation of that month's zodiac prominent or even visible during that month?

For instance, the month of October is called the month of Leo, but you will mainly see Aries, Taurus and the Southern skies during October, Leo isn't very prominent. So how is the zodiac decided?
Lucas Tan's user avatar
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-2 votes
2 answers
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How can planet (WD 1856b) revolve around its smaller mass WD 1856?

WD 1856 has smaller mass than WD 1856b. So how WD1856 making WD 1856b revolve in the orbit? Its clear violating space-time curvature.
Kate Marie's user avatar
3 votes
1 answer
1k views

Searching dataset for Constellation detection

I need to develop an Machine Learning (ML) model for predicting constellation seen in a picture taken from a mobile. This I need to develop from scratch. Firstly, I need help finding a database which ...
Harsh Banka's user avatar
12 votes
2 answers
3k views

When the sun "enters" a constellation, doesn't it make it impossible to see that constellation?

I was reading on NASA's website about how the Babylonians came up with dividing the sky into different slices and picked a pattern of stars in each slice to represent it. This ties in to astrological ...
Magnus's user avatar
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1 vote
1 answer
139 views

Unable to detect stars and constellations in simulation of stars from the Hipparcos catalogue

I am creating a planetarium program using Unity3D and C# to plot out stars from the Hipparcos catalogue. Using the Plx, _RA.icrs and _DE.icrs columns of the dataset, I have managed to work the ...
SidS's user avatar
  • 225
2 votes
1 answer
164 views

Is this star group a constellation recognized by the IAU?

Below is an arrangement of stars I've found in a TV series. As an amateur astronomer I cannot identify if this is a constellation, after having looked through what is recognized by the IAU. Is this ...
Dirk101's user avatar
  • 23
0 votes
0 answers
147 views

Does the average person in China know the constellations by the traditional Chinese system or Hellenic designation

As discussed in the International Dunhuang Project website, in traditional Chinese astronomy "the Chinese sky was divided into five great regions or palaces called gong 宫," and "Chinese astronomers ...
Bob516's user avatar
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2 votes
2 answers
430 views

Finding Quintuple Planetary Alignments with SkyField

I am working on a python script that will use the SkyField and SciPy libraries to find quintuple planetary conjunctions and their corresponding constellation location. Specifically I am looking for ...
Joshua Besneatte's user avatar
8 votes
2 answers
3k views

Are there any galaxies visible in the night sky around the Orion constellation?

I'm writing a story for NaNoWriMo, and in it there is an extraterrestrial race whose home galaxy is visible from Earth. This home galaxy is visible (or even partially visible or barely visible) in the ...
Matt B.'s user avatar
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3 votes
2 answers
87 views

Overhead (galactic North) view of the stars in and around the Vela Constellation with distance

I am working on a project and would like to have a star map--seen from "above" (Galactic North?) that calls out the stars in the Vela constellation and shows their distance from sol / earth. I ...
Marco Chacon's user avatar
4 votes
2 answers
3k views

Where can I find permissibly licensed database of stars and constellations?

I'm working on a game engine of sorts, and one thing I did for a previous game which was under the GPL was I had a night sky with the constellations visibly connected and I'd like to do that again. I ...
Charles Lohr's user avatar
11 votes
2 answers
3k views

On the consistency of different well-polished astronomy software

I have purchased a custom wedding band from a seller that claims the ring will show the constellations visible at the horizon on a specific date at a certain date and time. However, I have fired up ...
Mister Mystère's user avatar
1 vote
0 answers
61 views

Could you tell me this constellation name? [closed]

Hi Everyone please check this pictures could you tell me this constellation name ?
Raj's user avatar
  • 19
0 votes
1 answer
76 views

If the axis of the Earth was through Greenland, what would the north celestial pole be? [closed]

If the axis of the Earth was through Greenland, what would the north celestial pole be?
Gunnel's user avatar
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1 vote
1 answer
167 views

Will the shape of the constellations change if we observe from another planet, say Mars? [duplicate]

Constellations are dominant features of night sky. But these are basically group of stars that forms particular shapes when viewed from Earth. How much the shape of a constellation will change if we ...
Kushal Bhuyan's user avatar
1 vote
1 answer
160 views

Why do most of the myths behind constellations originate from Greek? [closed]

Why do most of the myths regarding constellations happen to have begun from Greek civilization? Why not other civilizations? Most people who lived in the past era probably observed star patterns in ...
Paba's user avatar
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2 votes
1 answer
142 views

At what latitude could Orion's belt and Aldebaran be ~10 degrees above the horizon at the same time?

In his appearance on television contained in the video The Mystery That Keeps Neil deGrasse Tyson Up At Night, in the backdrop behind astronomer and educator Neil deGrasse Tyson and the talk-show host,...
uhoh's user avatar
  • 31k
1 vote
2 answers
824 views

Why oddly shaped constellation areas?

Can somebody tell me why the constellations I've marked here have areas that resemble pieces of a puzzle, with very varying width and height and shapes, instead of being logically/evenly laid out on ...
coolmap's user avatar
  • 29