Iiro's DeepSky Sketches

Name: PK 238+34.1 (Abell 33)Other name: Abell 33
RA: 9h 39.1m DEC: -2° 48'
Constellation: HYA
Type: Planetary nebula
Magnitude: 13.4
Size: 268''
Brightest star: 16.1
Classification: 2b
Observer: Iiro Sairanen
Location: Haakanala, Rautjärvi, Finland
Date: 3/4.3.2011 23:05
Instrument: Newton 457/2280 mm
Magnification: 109xFilter: O-III
Field: 37'Seeing: 4
Background sky: 2NE lim mag: 6.7
Visuality: 4Height: 23°
Weather: -3°C, windy
Description: An obvious ring at 109x and O-III filter with averted vision. The west side of the ring is clearly brighter than other part, also some brighter structure is visible on the east side but not so clearly.
Updated: 24.3.2011 21:03