Iiro's DeepSky Sketches

Name: NGC 3680Other name: OCL 823
RA: 11h 25.6m DEC: -43° 15'
Constellation: CEN
Type: Open cluster
Magnitude: 7.6
Size: 6'
Number of stars: 30
Brightest star: 10.1
Classification: I 2 p
Description: Cl,cL,pRi,lC,*10..14
Observer: Iiro Sairanen
Location: Pico de la Nieve (1900 m), La Palma, Spain
Date: 30/31.3.2008 2:20
Instrument: Newton 110/805 mm
Magnification: 115xFilter: -
Field: 43'Seeing: 2
Background sky: 2NE lim mag: 7.2
Visuality: IHeight: 16°
Weather: +7°C, windy
Description: A nice and loose group of 10-13 mag stars. There are six brighter members surrounded by several fainter ones.
Updated: 2.8.2008 23:05