Information request about Galaxies

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Discussion Overview

The discussion revolves around the availability of Cartesian coordinates for galaxies, specifically within the local group. Participants are exploring resources and databases that provide these coordinates without the need for conversion from polar coordinates.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about existing lists of Cartesian coordinates for galaxies, particularly the local group.
  • Another participant shares links to databases that contain stellar information, including coordinates and distances.
  • A participant suggests the Tully database as a potentially useful resource for galaxy data.
  • There is a question regarding the availability of Tully's database with specific software, indicating uncertainty about access.
  • A participant provides additional links to Tully's collection and mentions the Nearby Galaxies Catalogue, while expressing difficulty in finding the larger Tully database in a downloadable format.
  • Concerns are raised about the completeness and official release status of Tully's data, suggesting it may not be fully available yet.

Areas of Agreement / Disagreement

Participants appear to agree on the usefulness of the Tully database and the Nearby Galaxies Catalogue, but there is uncertainty regarding the availability and completeness of Tully's larger dataset.

Contextual Notes

Limitations include the potential incompleteness of Tully's data and the reliance on personal communication for access to certain datasets.

Daminc
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Hi again,

I'm doing a bit of research about the positioning of the galaxies (the local group in particular) and I was wondering if there were any lists available where the cartisian coordinates were already calculated as apposed to translating them from the polar coordinate vectors.
 
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I've found these if anyone's interested:

http://www.stellar-database.com/
Stars within 75 light-years

http://www.lazette.net/Vision/Issue14/wbputtingstars.htm
Calculating coordinates and distance etc
 
Last edited by a moderator:
The Tully database is probably your best bet.

- Warren
 
Is it only available with Starry Night Pro v.4?
 
Tully's collection of 2367 galaxies (Nearby Galaxies Catalogue, VII/145, 1998) is available everywhere, such as:

http://www.asc.rssi.ru/mdb/stars/7/7145.htm
http://xml.gsfc.nasa.gov/archive/catalogs/7/7145/

Here's another database, GOLDmine, which you might find useful:

http://arxiv.org/abs/astro-ph/0212257

I am unable to find the 28,000 galaxy Tully database in downloadable form. Several preprints have used Tully's data, but all give him as a reference via "personal communication." I suspect that this means he is not completely done with the data, and has not officially released it yet. Chances are the Nearby Galaxies Catalogue will be sufficient for your purposes.

- Warren
 
Last edited by a moderator:

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