Iiro's DeepSky Sketches

Name: PK 249-5.1 (Abell 23)	Other name: Abell 23
RA: 7h 43.3m	DEC: -34° 45'
Constellation: PUP
Type: Planetary nebula
Magnitude: 13.1
Size: 54''
Observer: Iiro Sairanen
Location: Wicherina, Greenough, Australia
Date: 10/11.1.2010 22:25
Instrument: Newton 254/1200 mm
Magnification: 171x	Filter: UHC
Field: 29'	Seeing: 3
Background sky: 1	NE lim mag: 7.5
Visuality: V	Height: 48°
Weather: +16°C, windy
Description: Faint and difficult disk, found with an O-III.
Updated: 15.9.2010 21:37