Jump to content


Photo

IC 2391

  • Please log in to reply
4 replies to this topic

#1 nunciusaustralis

nunciusaustralis

    Ranger 4

  • -----
  • Posts: 393
  • Joined: 25 Sep 2009
  • Loc: Rio de janeiro, Brazil

Posted 02 May 2011 - 07:04 PM

This is a classic open cluster. A naked eye object on Vela.
Omicron Velorum Cluster. Is a Lacaille discovery. :cool:

Attached Files



#2 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8373
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 03 May 2011 - 09:38 AM

Nuncius,

Yet another fine sketch. Keep them coming.

Frank :)

#3 IVM

IVM

    Apollo

  • -----
  • Posts: 1056
  • Joined: 07 Jan 2008
  • Loc: USA

Posted 03 May 2011 - 06:00 PM

Nice! It is curious how a few of Lacaille's objects got IC numbers, not NGC... (This one, though, was likely first described by Al Sufi, and by Lacaille independently, although apparently there is doubt about the true identity of Al Sufi's "nebulous star.")

#4 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3048
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 04 May 2011 - 08:58 AM

Nuncius,

nice sketch of IC 2391 :).

CS,KLU,

:thanx:,

Tom

#5 nunciusaustralis

nunciusaustralis

    Ranger 4

  • -----
  • Posts: 393
  • Joined: 25 Sep 2009
  • Loc: Rio de janeiro, Brazil

Posted 07 May 2011 - 10:07 PM

Al sufi probably notice this cluster .Its very obvious even on urban skies. Very bright .






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics