Talk:Star catalogue

Guide Star Catalog

I suspect this topic should mention the Hubble Guide Star Catalog, but I don't know enough about it to place it correctly. JTN 17:13, 2004 Sep 13 (UTC)

Done! Aldebaran66 (talk) 20:58, 14 September 2009 (UTC)

SO

Teegarden's star is designated SO025300.5+165258. Which catalog is called "SO"? Icek 12:51, 29 December 2006 (UTC)

Bet you find this Interesting?

I had a thought the other day. And tried to find this answer to this on Wikipedia and other sources. But as a complete layman became very confused, parsecs/light years ect. This is my thought, we (the human race) have been sending out RF signals of a reasonable strength since 1922, please correct me on this if I have this wrong. Based on this knowledge, I wondered how far and how many star like suns (G class stars) have these RF signals reached by this year, 2007 ? You know where I'm going with this thought, and yes maybe life is not restricted to G class stars, or maybe it is, or maybe only to G2V, and we all known G2V's are capable! Then there's the age of these stars, and then the metallic make up as well. I wish someone with the right knowledge would draw up a list of theses stars. And using the above knowledge. We could then break the list up into the most lightly to the most unlikely places that intelligent life may exist. And that have also received RF signals from us. I believe this list would be helpful to SETI, to reduce their listing down to size, so they can focus on a more broader range of RF signals. As I also believe the RF's they are searching are far too narrow, and I feel a lot of time and money is going to waist at SETI. If anyone can help me with this please do, maybe I've got this wrong as I'm just a layman. But in any case, post me something, its bugging me! -- 86.10.204.128

The Nearby Stars Database finds 191 G-type stars within 25 parsecs. That's about a parsec less than you want, but it's a start. --Zundark 09:50, 21 March 2007 (UTC)

More catalogs

New catalogs of importance are Sloan, Carlsberg, 2Mass, UCAC, etc. In fact, a very good place to get a more comprehensive list of recent catalogs is http://ad.usno.navy.mil/star/star_cats_rec.shtml. Observatory 23:46, 3 August 2007 (UTC)

Number of stars in each catalog??

This isn't my thing but I thought I would be able to find the largest catalog by checking this article and it seems odd to me that this piece of information is missing, Shouldn't it be easy to find at a glance here how many stars each catalogue actually catalogues?? GabrielVelasquez (talk) 23:23, 25 June 2008 (UTC)

"The USNO-B1.0 contains entries for 1,042,618,261 stars/galaxies" - found this at the link above (or here) and this is a good example of what I mean, for each catalogue. User:GabrielVelasquez|GabrielVelasquez]] (talk) 23:28, 25 June 2008 (UTC)

Astronomical catalog and Star catalogue

Can any one please tell me the difference between an Astronomical catalog and a Star catalogue? I found that most of Star catalogue includes astronomical objects other than stars also. I am confused with these terms.

Is Astronomical catalog is the best term to denote all the types of calatolgues in astronomy? Usage of the term star catalogue might have got historical reasons! --Shijualex (talk) 13:21, 18 October 2008 (UTC)

Image Caption

The first image in the article has caption: "An illustration ... by the German astronomer Johannes Hevelius in 1690". But the page about Hevelius (that the caption links to) states he spoke German, but was "of Bohemian origin", and "considered himself as being part of the Polish world", so the nationality doesn't really look that obvious. —Preceding unsigned comment added by 89.206.1.4 (talk) 20:09, 12 February 2011 (UTC)

why doesn't tycho-2 catalogue have a section?

Tycho2 is mentioned in passing in other sections. Is there a reason why it doesn't have a sub-section of its own? — Preceding unsigned comment added by Old-shifu (talk • contribs) 15:40, 27 October 2016 (UTC)

Gaia catalogues

I am a strong advocate for a separate article for the Gaia catalogues. In fact I found each of the catalogues interesting enough to write a detailed article for each of them in the German language. Subsections of the Gaia catalogues will contain large numbers of prior not identified quasars, galaxies, variable stars, multiple star systems and other distinct objects. Each of them comes with its own Gaia Celestial Reference Frame which represents an optical version of the International Celestial Reference Frame.--Giftzwerg 88 (talk) 03:43, 11 February 2022 (UTC)

• Support split of Gaia catalogues. Gusfriend (talk) 04:09, 19 February 2022 (UTC)
• Support and done, new article is Gaia catalogues

Giftzwerg 88 for such non-controversial splits I think you could do it yourself, without waiting for response on the talk page as it can be stale for many months (as this one was). It would be great if you'll expand the new article, or create separate ones for each catalogue as you did in German. If you're busy, can you please just post here the links to German articles? Artem.G (talk) 17:05, 15 August 2022 (UTC)

Thank you for the request. I did several articles around the Gaia-Mission and about multiple Gaia catalogues and it was hard work to go through all the documentations, thousands of pages. My background is not in astronomy or space science, so it was often hard to comprehend. The Gaia Mission is huge and makes me feel more and more humble the more I read and write about it. But unfortunately, I won´t be able to translate all of it into the English language. Life is short, and we all can do only a limited amount of activities. But here are the articles. Some of them were only of interest at the beginning of the Mission. The main article "Gaia (Raumsonde)" is only by 60% my creation, while the others are almost 100%.

• https://de.wikipedia.org/wiki/Initial_Gaia_Source_List
• https://de.wikipedia.org/wiki/Gaia_Ecliptic_Pole_Catalogue
• https://de.wikipedia.org/wiki/Gaia_DR1
• https://de.wikipedia.org/wiki/Gaia_Celestial_Reference_Frame
• https://de.wikipedia.org/wiki/G-Band-Magnitude
• https://de.wikipedia.org/wiki/Gaia_DR2
• https://de.wikipedia.org/wiki/Gaia_EDR3
• https://de.wikipedia.org/wiki/Gaia_DR3
• https://de.wikipedia.org/wiki/Data_Processing_%26_Analysis_Consortium
• https://de.wikipedia.org/wiki/Gaia_(Raumsonde)

--Giftzwerg 88 (talk) 18:05, 15 August 2022 (UTC)

Thanks! If I'll find time, maybe I'll eventually translate DR articles into English, though I wouldn't expect it to be soon. Artem.G (talk) 19:28, 15 August 2022 (UTC)

Include astrometric precision for each catalog

Only a few entries indicate how accurate the positions are. E.g. "0.2 arcsecond astrometric accuracy at J2000.0" for USNO-B1.0. It would be very helpful to include that information for the others, and that is one valuable aspect of having multiple catalogs described in a single article. ★NealMcB★ (talk) 02:03, 11 April 2022 (UTC)