Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

What catalogs are these stars from?

  • Please log in to reply
7 replies to this topic

#1 Chris K

Chris K

    Viking 1

  • *****
  • topic starter
  • Posts: 581
  • Joined: 20 Sep 2017
  • Loc: Long Island, Earth

Posted 14 January 2022 - 10:41 PM

Hi folks,

 

I'm expanding my carbon star list beyond the Astronomical League list.

 

I found a thread on CN where Bill Paolini provided a very nice list of carbons.

https://calgary.rasc.ca/redstars.htm

 

There are stars on the list that I have no idea of their catalog to be able to look them up.

I've tried punching in the coordinates in SSpro but have not had luck with that route either.

Maybe there's a site where I can reverse-lookup using coordinates and it tells me the star?

 

Here's some examples of the star IDs in the list. Fairly certain they're not HR, HD or HIP either.

 

C* 2138  (fairly certain the C* is not part of the ID# but can't figure it out)

 

2MASS J06365403+0305233

 

GSC 04046-00813

 

CD-26 298

 

VES 111

 

CPD-57 7255

 

Thoughts or suggestions much appreciated, I really want to see some of these!



#2 Alan French

Alan French

    Night Owl

  • *****
  • Posts: 6,384
  • Joined: 28 Jan 2005
  • Loc: Upstate NY

Posted 14 January 2022 - 10:58 PM

2MASS is the 2 Micron All Sky Survey

 

http://tdc-www.harva...logs/tmpsc.html

 

GSC is the Guide Star Catalog.

 

https://en.wikipedia...de_Star_Catalog

 

VES is probably VizieR Online Data Catalog.

 

https://ui.adsabs.ha.......0C/abstract

 

Clear skies, Alan


  • Chris K likes this

#3 RazvanUnderStars

RazvanUnderStars

    Apollo

  • *****
  • Posts: 1,490
  • Joined: 15 Jul 2014
  • Loc: Ontario, Canada

Posted 14 January 2022 - 11:03 PM

OP, you can search by coordinates through SIMBAD at http://simbad.u-stra...simbad/sim-fcoo

 

Also, you can use the search-by-id page at http://simbad.u-stra.../simbad/sim-fid and you get a list of alternate identifiers, maybe some will be known by your telescope controller.


  • Alan French and Chris K like this

#4 Chris K

Chris K

    Viking 1

  • *****
  • topic starter
  • Posts: 581
  • Joined: 20 Sep 2017
  • Loc: Long Island, Earth

Posted 14 January 2022 - 11:10 PM

OP, you can search by coordinates through SIMBAD at http://simbad.u-stra...simbad/sim-fcoo

 

Also, you can use the search-by-id page at http://simbad.u-stra.../simbad/sim-fid and you get a list of alternate identifiers, maybe some will be known by your telescope controller.

I'll try that thank you. I am my telescope controller LOL.



#5 Bill Weir

Bill Weir

    Gemini

  • *****
  • Posts: 3,067
  • Joined: 01 Jun 2004
  • Loc: Metchosin (Victoria), Canada

Posted 15 January 2022 - 02:56 AM

Yes Larry’s not Bill’s list is extensive. It also already has the coordinates on it and they are correct.

 

Simbad is the route to go. I simply randomly highlighted and copied one identifier and dropped it into the identifier query and Boom there you go.  http://simbad.u-stra...ubmit=submit id

 

Carbons can be fun but expect some of them to be very subtle. Sometimes it takes playing with magnification to get the colour to show. And sometimes it takes aperture to cover enough receptors.

 

Bill


  • Jon Isaacs and herschelobjects like this

#6 spereira

spereira

    Fly Me to the Moon

  • *****
  • Moderators
  • Posts: 7,318
  • Joined: 21 Apr 2017
  • Loc: Bedford, NH

Posted 15 January 2022 - 09:41 AM

Moving to Deep Sky Observing.

 

smp



#7 beggarly

beggarly

    Viking 1

  • -----
  • Posts: 924
  • Joined: 12 Jun 2015
  • Loc: Belgium

Posted 15 January 2022 - 10:26 AM

Old topics about 'carbon' stars: https://www.cloudyni...scension-order/

 

https://www.cloudyni...s-in-andromeda/


Edited by beggarly, 15 January 2022 - 10:32 AM.


#8 raa

raa

    Lift Off

  • -----
  • Posts: 14
  • Joined: 14 Jan 2022

Posted 15 January 2022 - 11:29 AM

Hi folks,

 

I'm expanding my carbon star list beyond the Astronomical League list.

 

I found a thread on CN where Bill Paolini provided a very nice list of carbons.

https://calgary.rasc.ca/redstars.htm

 

There are stars on the list that I have no idea of their catalog to be able to look them up.

I've tried punching in the coordinates in SSpro but have not had luck with that route either.

Maybe there's a site where I can reverse-lookup using coordinates and it tells me the star?

 

Here's some examples of the star IDs in the list. Fairly certain they're not HR, HD or HIP either.

 

C* 2138  (fairly certain the C* is not part of the ID# but can't figure it out)

 

2MASS J06365403+0305233

 

GSC 04046-00813

 

CD-26 298

 

VES 111

 

CPD-57 7255

 

Thoughts or suggestions much appreciated, I really want to see some of these!

Some have beaten me to this, SIMBAD ID search is the best route, and although your result page may have a different title than the name you put in, that is because it allows a large number of cross identifications as well.  Most of the above will likely work.  The important bit to you is the C* bit, which I will mention last.

 

2MASS is a near infrared allsky catalogue

 

GSC is the Guide Star Catalogue.  Incidentally Tycho identifiers use the same system, except with an added number on the end often to show whether stars are single or not.  For example this star will be TYC 04046-00813-1 .  Sometimes things will work without the -1 at the end for TYCHO searches (eg software), or without preceeding zeroes.  Sometimes not.

 

CD and CpD are Durchmusterungs.  Look that word up in wikipedia.  CD is Cordoba (Argentina) CpD is Cape Photographic (South Africa), once upon a time you only had these to get down to magnitude 9.  You will have likely heard of BD for the common most Durchmusterun, these are southern hemisphere extensions.  The first one I think may have been SD, which took things just a bit more south than BD, at least I don't think it is called SBD, which would be unfortunate.

 

VES looks likely to be a red star list.  I'm wrong.  If you look at SIMBAD one link is to a 'nomenclature dictionary' and it says several but the likely one is Vatican Emission Star, which is a bit of a surprise for a carbon star.

 

C* is actually SIMBAD specific shorthand for carbon star, unique to simbad, someone has just copied it.

 

However, the number will be the number in the CGCS, which stands for Cool Galactic Carbon Star (interpret the word 'cool' however you wish).  The last edition was the second edition, or possibly the third?, and it too evolved from an earlier carbon star list.  In the past certain professional astronomers with a specialisation used to make compilation catalogues of specific types of objects by wading through the literature, and then people would notifiy them directly on new discoveries or they'd see them in new papers from targetted spectroscopic surveys or something and they would grow in size.  Most of these people have retired now and such catalogues are rarely udpated, but their data is still as valid today, especially in the magnitude ranges most amateurs will be able to achieve.

 

If you see something like C* 1234 then it will be CGCS 1234.

 

The full catalogue is available via VizieR, here is the direct link to the third edition (not all numbering stays the same in all editions) :-

 

https://vizier.u-str...r&-oc.form=sexa

 

if you clicked the all columns tickbox at bottom and typed in 2138 in the box with CGCS to the left of it you will get all the CGCS catalogue data available for that star.

 

Coordinates are a bit out of date, but you can use 2MASS for that.  It didn't work because the 2MASS identifier excludes the decimal point.  You have to add them.  2MASS identifiers use 1 decimal place for declination and 2 decimal places for RA.

 

J06365403+0305233 = RA 06h 36m 54.03s +03d 05' 23.3" in sexagesimal to J2000.  In SIMBAD you have to use spaces, so that would be 06 36 54.03 +03 05 23.3 in the coordinate box.  Use whatever your software prefers.

 

Finally, Guide by projectpluto has a system for showing carbon stars from this catalogue with little red x marks and the number in red, do a webearch on carbon stars and guide and projectpluto.  I would be surprised if similar is not available in other software.


  • GaryJCarter and RazvanUnderStars like this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics