Questions tagged [star-catalogues]

Questions regarding lists of star designations.

12 questions with no upvoted or accepted answers
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10 votes
0 answers
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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 ...
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4 votes
0 answers
55 views

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 ...
3 votes
0 answers
59 views

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... ...
  • 3,756
2 votes
0 answers
171 views

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. ...
  • 2,365
2 votes
0 answers
61 views

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
44 views

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 ...
  • 88
1 vote
0 answers
42 views

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
53 views

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 ...
1 vote
0 answers
31 views

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 ...
1 vote
0 answers
81 views

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
65 views

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 votes
0 answers
59 views

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 ...
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