Jump to content


Photo

Lambda Orionis

  • Please log in to reply
5 replies to this topic

#1 Pete-LH

Pete-LH

    Messenger

  • *****
  • Posts: 425
  • Joined: 25 Mar 2009
  • Loc: Wilmington, DE

Posted 01 January 2014 - 10:21 AM

This is a Sketch from last Friday night of Lambda Orionis and the asterism (Lambda Orionis Cluster or Collinder 69) where it is located (Orion's Head). I recently acquired a used Borg 60ED which I am trying out as both a finder for the C8 and a wide field view. Here I used an 11mm Nagler with the 60Ed giving a 32X/2.4deg field of view. With a 3.5mm Nagler at 100X/0.8 deg Lambda Orionis was resolved with the major star a very nice disc with one concentric ring which overlapped at the edge of the companion. I should have tried sketching that as well. I need to work on my magnitudes-in the 2.4 deg view Lambda, Phi 1 and Phi 2;1 should stand out a bit more from the rest as well as the three stars in a slight arc between Lambda and Phi 1.

Not a difficult split except it was fairly cool and the atmosphere was not so stable at first (or my C8 had not stabilized). But eventually had a fairly good view.

There is a pretty good description of Lamda Orionis in Wiki-pedia.

Attached Files


  • AllanDystrup likes this

#2 kenrenard

kenrenard

    Surveyor 1

  • -----
  • Posts: 1562
  • Joined: 13 Dec 2012
  • Loc: Dunmore, PA

Posted 01 January 2014 - 12:53 PM

Nice wide field sketch. You have to love those little refractors.


Ken

#3 PeterDob

PeterDob

    Viking 1

  • -----
  • Posts: 869
  • Joined: 29 Jul 2005
  • Loc: Castelnovo ne' Monti, Italy

Posted 01 January 2014 - 03:21 PM

Very nicely done, Pete! The comparison is very interesting.

Peter

#4 Chopin

Chopin

    Canis Insanus

  • *****
  • Posts: 4586
  • Joined: 03 Feb 2005
  • Loc: In the doghouse.

Posted 01 January 2014 - 06:34 PM

Still a great observation, Pete! Even if you feel the split wasn't very challenging. I love the related sketches at varying magnifications.

#5 Pete-LH

Pete-LH

    Messenger

  • *****
  • Posts: 425
  • Joined: 25 Mar 2009
  • Loc: Wilmington, DE

Posted 01 January 2014 - 11:16 PM

Jason, That's what I've been aiming at for a visual setup-A finder that can also be a good wide field visual tool as well when sketching. I really like this set-up of the C8 with a 60-70mm light telescope.

#6 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3175
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 02 January 2014 - 09:30 PM

Pete,

Nice sketch of Lambda Orionis :).

CS,KLU,

:thanx:,

Tom






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics