Iiro's DeepSky Sketches

Name: NGC 4618Other name: IC 3667
RA: 12h 41.6m DEC: +41° 9'
Constellation: CVN
Type: Galaxy
Magnitude: 10.8
Size: 4.2' x 3.4'
PA: 25°
Surface brightness: 13.5
Classification: SB
Description: B,L,E,mbM,curved branch n
Notes: H I 178,P w NGC 4625 @ 8.3'
Observer: Iiro Sairanen
Location: Ania, Pirkkala, Finland
Date: 13/14.4.2010 0:10
Instrument: Newton 300/1500 mm
Magnification: 214xFilter: -
Field: 23'Seeing: 3
Background sky: 3NE lim mag: 6.4
Visuality: IIHeight: 69°
Weather: -0°C, scattered clouds
Description: At first I didn't believe what I'm seeing. It took a long time to be sure that NGC 4618 is really a some kind of donut. A main core and the brighter area on the south are quite easy to detect but bridges between them required averted vision, center is clearly darker. This has to be a really amazing object with larger scopes.
Updated: 26.4.2010 19:29