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Olivier Biot
Amused
*****

Reged: 04/25/05

Loc: 51°N (Belgium)
Collinder Catalog of Open Star Clusters (updated)
      #4105561 - 10/10/10 02:43 PM

Collinder Catalog of Open Star Clusters (updated)

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desertstars

*****

Reged: 11/05/03

Loc: Tucson, AZ
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Olivier Biot]
      #4105996 - 10/10/10 07:01 PM

In the two years since the Collinder Catalog was posted on Cloudy Nights several errors involving positions and magnitudes came to light. In this version, those errors have been corrected.

My thanks to readers who took the trouble to point out these mistakes. The continued interest in this article is most gratifying.

My thanks as well to Olivier for fixing the Greek character problem, and for creating the hyperlink to the Notes section.


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Lightning
sage


Reged: 07/04/10

Loc: Canberra, Australia
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: desertstars]
      #4106767 - 10/11/10 02:10 AM

Many thanks, this is such a great catalog!

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rookie
Good Night Nurse
*****

Reged: 01/14/06

Loc: St. Petersburg, FL
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Lightning]
      #4108835 - 10/11/10 09:54 PM

Thank you for the catalog and the time taken to improve its accuracy.

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Feidb
Pooh-Bah


Reged: 10/09/09

Loc: Nevada
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: rookie]
      #4110048 - 10/12/10 12:31 PM

Thank you so much! I am doing the list based on your original list. Now I can go in and update the errors from the older list. I've logged 230 of them so far. A great goal when the skies are subpar, as most of these clusters cut through lousy transparency.

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bdawg6381
sage
*****

Reged: 12/04/08

Loc: Blacksburg, VA
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Feidb]
      #4110527 - 10/12/10 03:43 PM

Thank you! Very enjoyable viewing these with my 4" refractor.

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Olivier Biot
Amused
*****

Reged: 04/25/05

Loc: 51°N (Belgium)
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: desertstars]
      #4110657 - 10/12/10 04:35 PM

You're welcome Tom

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lunar
Carpal Tunnel


Reged: 07/03/10

Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Olivier Biot]
      #4110865 - 10/12/10 06:07 PM

Thank you for posting this! It's a great catalogue!

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cliff mygatt
Carpal Tunnel


Reged: 01/27/09

Loc: Kitsap County, WA
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: lunar]
      #4127033 - 10/19/10 01:50 PM

Tom,

I sent a PM about this article. Great catalog!


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mwedel
Works with Sauropods
*****

Reged: 12/16/07

Loc: Claremont, CA
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: desertstars]
      #4130727 - 10/20/10 09:28 PM

Tom, many thanks for the updated version of the list. As before, I took the liberty of creating a PDF, posted here. Please let me know if you have any reservations about this or see anything that I inadvertently messed up.

Thanks again and clear skies!


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rboeAdministrator

*****

Reged: 03/16/02

Loc: Phx, AZ
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: mwedel]
      #4682013 - 07/08/11 09:12 PM

Wow! Very late to the party but one heck of job there Tom.

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desertstars

*****

Reged: 11/05/03

Loc: Tucson, AZ
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: rboe]
      #4682072 - 07/08/11 10:01 PM

Thanks.

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simpleisbetter
Carpal Tunnel
*****

Reged: 04/18/11

Re: Collinder Catalog of Open Star Clusters (updated) new [Re: desertstars]
      #4711688 - 07/25/11 10:58 AM Attachment (360 downloads)

Ver much appreciated Tom, especially as OC's are my favorite DSO. Very nice work.

I hope you don't mind since you've done all the hard work here, but as I wanted the ability to search and sort I exported your data and notes to an Excel spreadsheet. I've also cross-referenced and sort of updated (hopefully correctly) some of the other names in the "NGC/Other Cat" section against AstroPlanner 2.0 and briefly a few items gainst SIMBAD; I plan to check against SkyTools 3 and more thoroughly in SIMBAD - one of these days...

Just unzip the attached file to use. One note, I originally generated this list as an Excel 2010 .xlsx file; during the export to a standard .xls file Excel seemed to indicate there might be some cell or display errors. I don't see any at the moment, but I'm not going to guaranty anything.

I hope this was okay, if not I'll take it back down.


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desertstars

*****

Reged: 11/05/03

Loc: Tucson, AZ
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: simpleisbetter]
      #4711802 - 07/25/11 12:16 PM

It didn't give me any errors when I openned it.

It's fine posting that, as far as I'm concerned. I know for a fact you're not the first person to adapt the catalog in such a fashion. If it makes it easier to use, it suits my purpose in posting it in the first place. Thanks for sharing this.


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Durval Menezes
super member


Reged: 08/30/10

Loc: Rio de Janeiro, Brazil.
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: desertstars]
      #4773414 - 08/28/11 08:40 AM

Hello Tom,

Just found your article when I was searching for more information on Harvard20 (aka Cr.4018), an open cluster I observed last night.

This must be the definitive annotated reference on the Collinder catalog; many thanks and congratulations on an job very well done. BTW, did you know you are being linked from the Wikipedia article on the Collinder catalog? See section "External Links" on http://en.wikipedia.org/wiki/Collinder_catalog .

Slightly off-topic, I did not manage to find much information about the Harvard catalog; can you provide me with any references?

Cheers,


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roccodm
sage
*****

Reged: 01/15/08

Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Durval Menezes]
      #4774430 - 08/28/11 07:49 PM

thanks oli -it will take me until the snow flies up here just too get thru const. cas ciao rocco

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desertstars

*****

Reged: 11/05/03

Loc: Tucson, AZ
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Durval Menezes]
      #4798605 - 09/09/11 05:12 PM

Quote:

Hello Tom,

Just found your article when I was searching for more information on Harvard20 (aka Cr.4018), an open cluster I observed last night.

This must be the definitive annotated reference on the Collinder catalog; many thanks and congratulations on an job very well done. BTW, did you know you are being linked from the Wikipedia article on the Collinder catalog? See section "External Links" on http://en.wikipedia.org/wiki/Collinder_catalog .

Slightly off-topic, I did not manage to find much information about the Harvard catalog; can you provide me with any references?

Cheers,




Apologies... I somehow missed that there was a question here! Unfortunately, the answer is that I have no references on hand regarding the Harvard catalog. I have not looked into that one for myself.

And yes, I know about the Wikipedia link. No idea who did it, but if whoever is responsible reads this... Thanks!


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Larry Mc
member


Reged: 09/29/08

Loc: Pittsburgh, PA.
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Olivier Biot]
      #5729292 - 03/12/13 11:03 PM

hi all,

Back in the Dec 2012 'Sky & Tel', there was a neat article about odd-named star clusters. (see page 36).
After reading thru it, I got to thinking that I had already observed a number of these clusters - Stock, Trumpler, and Collinder.
I followed the link in the magazine article to this article on 'cloudy nights' about the Collinder Catalog, and that perked my interest in creating a new webpage.
Here it is: the 'Collinder Cluster Tour': http://home.comcast.net/~lsmch/collinder-tour.htm
This is my personal observations, either visual sketches or video capture, of the 'Collinder Objects' over a 25 year period using various telescopes or cameras. Of the 471 star clusters & asterisms listed in the catalog, I have a total of 268 out of a possible 353 CR objects visible from +40 latitude. (the other 118 objects are not visible from my location).
You'll find a number of your favorite objects, such as CR399 - the Coathanger, CR42 - Pleiades, CR50 -Hyades, CR70 - Orion's Belt, CR256 - Melotte-111(Coma Cluster), and even CR285 - the Big Dipper!
In addition to the above link, you can find this new 'tour' listed on my website.
Enjoy!!!

Larry
Astronomical Webportal: http://home.comcast.net/~lsmch/


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captjwj
member
*****

Reged: 10/16/04

Loc: Omaha, NE
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Larry Mc]
      #5729321 - 03/12/13 11:14 PM

Larry,

Thanks so much for posting the link to your web-page of the Collinder Cluster Tour. I too read the Dec. 2012 Sky & Tel article and was especially interested in the Collinder clusters part of the article. In my interest is such that I am planning on preparing a talk on Per Collinder and his open cluster catalog to present at the Mid-States Astronomical League Convention this year in May.

John Johnson


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PhilH
sage


Reged: 01/27/05

Loc: Long Island, NY
Re: Collinder Catalog of Open Star Clusters (updated) new [Re: Larry Mc]
      #5729703 - 03/13/13 05:23 AM

Very nice, Larry! That's a great resource, one that I know I will return to time and again to reference as I research my monthly Binocular Universe e-column here on CN.

Thanks for a job well done!


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