Reflection Nebulae in the vdB catalog
Posted 10 January 2013 - 12:42 PM
PS - I was using a Z12 from an orange/yellow zone.
Posted 10 January 2013 - 01:51 PM
Posted 10 January 2013 - 03:06 PM
Posted 10 January 2013 - 04:04 PM
David - thanks for your reply. I'll try the ones that you mentioned someime.
Posted 12 January 2013 - 12:26 AM
It's probably either vdB 93, AKA Gum 1, off the northwest tip of the Seagull Nebula (IC 2177) or perhaps vdB 1, which resides just 25' SE of mag 2.2 Beta Cas (Caph). In any case, there are certainly no prominent vdB-only objects.
Posted 12 January 2013 - 11:12 AM
I take it you meant, "...There are certainly no prominent vdB-only objects."
Posted 13 January 2013 - 02:58 PM
Here is my observation of vdB 1 in CAS:
vdB 1 13.1" f/5.6 Cherry Rd. Seeing=6 Transp=7
150X--very faint, pretty small, irregularly round, 3 stars of about 8th mag involved. Averted vision helps a lot, the nebula doubles in size when I avert my vision. There are several stars of an equal magnitude nearby, they can be used to provide a test section, which has no nebulosity. The UHC filter makes it disappear, so this is a reflection nebula.