Iiro's DeepSky Sketches

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Name: NGC 7142Other name: OCL 241
RA: 21h 45.2m DEC: +65° 46'
Constellation: CEP
Type: Open cluster
Magnitude: 9.3
Size: 4.3'
Number of stars: 100
Brightest star: 12.1
Classification: II 2 r
Description: Cl,cL,cRi,pC,*11..14
Notes: H VII 66
Observer: Iiro Sairanen
Location: Härskiänsaari, Ruokolahti, Finland
Date: 21/22.8.2009 2:55
Instrument: Newton 457/2280 mm
Magnification: 176xFilter: -
Field: 23'Seeing: 3
Background sky: 2NE lim mag: 6.7
Visuality: IHeight: 77°
Weather: +7°C
Description: A pretty rich open cluster in a rich field. The brightest stars are 11 mag but mainly they're 12-14 mag.
Updated: 2.9.2009 20:02