Iiro's DeepSky Sketches

Name: NGC 246Other name: PK 118-74.1
RA: 0h 47.1m DEC: -11° 52'
Constellation: CET
Type: Planetary nebula
Magnitude: 8.5
Size: 240'' x 210''
Surface brightness: 13.5
Brightest star: 10.9
Classification: 3b
Notes: H V 25,PK118-74.1,Galaxy NGC 255 15' NNE
Observer: Iiro Sairanen
Location: Wicherina, Greenough, Australia
Date: 8/9.1.2010 21:35
Instrument: Newton 254/1200 mm
Magnification: 171xFilter: UHC
Field: 29'Seeing: 4
Background sky: 1NE lim mag: 7.4
Visuality: IHeight: 36°
Weather: +18°C
Description: A bright planetary nebula which has good respose to nebula filters. There is a brighter arc on the edge of the southern half. That makes nebula look annular. The northern half is much more diffuse. Four stars involved.
Updated: 4.9.2010 22:15