Questions tagged [star-catalogues]
Questions regarding lists of star designations.
15
questions with no upvoted or accepted answers
15
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0
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What 1° x 1° region is the optically darkest patch in the sky?
What 1° x 1° region of the night sky has the lowest flux of light?
(considering the typical visual/luminance filter range, approximations using other filters/bands are acceptable, but should be in the ...
- 1,888
4
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0
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69
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Deepest known objects in the vicinity of Capella (or, generally, any specified object)
There must be a way to do this, but I don’t know where to start.
Given a star (or other object, or a RA and dec), and a radius, what are the (say) 10 known deepest sky objects in this area, ordered ...
- 425
3
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0
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97
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Understanding WISE acronyms
I've enoucntered many acronyms related between them, like AllWISE, WISE, NEOWISE, CatWISE, WISEA, WISEAR, WISEAF, WISEU, WISEP, WISEPA, WISEPC, WISEF, WISEPF, WISER, WISEWF, WISET, WISETF, WISENF... ...
- 3,916
2
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0
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230
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Cross-matching astronomical catalogs
A project I'm working on involves getting data from SDSS DR12, and cross-matching it with NED, as described in Section 2 of this paper:
2.1 The sample
From the SDSS Data Release 12 (DR12, Alam et al. ...
- 2,518
2
votes
0
answers
62
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Gliese Catalog Designation prefixes
In the Gliese catalog there are a bunch of prefixes, such as GJ, GI, Wo, etc. My question is do the numbers overlap ever? I tried to look it up, but nothing I could find was conclusive to me.
- 397
1
vote
0
answers
47
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Calculate Luminosity of a star from the Hipparcos catalogue
Is it possible to calculate the star's luminosity based on the data in the Hipparcos catalogue? Currently I'm using this algorithm, I have even fitted the bolometric correction to the Johnson V band (...
- 31
1
vote
0
answers
55
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Filtered Gaia DR3 datasets
I'm a programmer who'd like to process some of the smaller Gaia DR3 datasets. I ultimately want to use the Gaia Sky 15M default dataset, but decided to start with a smaller 1.9M dataset as a prototype....
- 357
1
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0
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105
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Simbad, NED databases surface magnitude data?
I can't seem to find data about surface magnitude of galaxies in Simbad.
I can easily find the apparent and absolute magnitude ...
Should I just try to compute the surface magnitude, given the ...
- 116
1
vote
0
answers
46
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Which parameters of stars could show they about to undergo a supernova explosion?
I need to seek stars in our galaxy about to undergo a SN from catalogues. I can find stars in our galaxy by setting parallax to a certain value. However, I don't know how to find a parameter which ...
- 109
1
vote
0
answers
87
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Star Catalog with radius, luminosity, and spectra class?
I am looking for a star catalog (hopefully a .csv file) that contains radius, luminosity, and spectra class data for 1000+ stars.
I have checked catalogs like the HIP, HD, and GAIA catalogs. I have ...
- 41
1
vote
0
answers
40
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Filtering local region in SIMBAD
I am completely new to astrophysics and currently writing a paper on Cepheid variables for high school physics.
I would like to filter out all Cepheid variables in the local system which I would ...
- 11
1
vote
0
answers
69
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What are Stokes parameters for galaxy shapes, how do they compare to Stokes parameters in optics?
I remember Stokes parameters as a way to completely define the polarization state of a well-defined beam of light. However several questions here refer to Stokes parameters used in characterizing the ...
- 30.9k
1
vote
0
answers
89
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Duplicate entries in Tycho-2 main and supplement 1
When checking the internal consistency of the Tycho-2 catalogue, I came across 254 entries in the main catalogue file that are also present in supplement 1 (the Hipparcos/Tycho-1 stars not included in ...
1
vote
0
answers
66
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Stellar catalogues stars in specific sky regions – without downloading the catalogs
I’m interested, to give a scientific realism to a project I’m working on, in finding a picture of all stars belonging to a star catalogue such as Tycho 2 or Hipparcos for some very specific sky ...
- 11
0
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0
answers
32
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Trying to use SQL to query SDSS
I'm trying to use the SQL search at https://skyserver.sdss.org/dr18/SearchTools/sql to find (for example) QSOs with accurate redshifts from the SDSS. My query will look something like this:
...
- 2,518