Iiro's DeepSky Sketches

Name: NGC 7510	Other name: OCL 256
RA: 23h 11.5m	DEC: +60° 34'
Constellation: CEP
Type: Open cluster
Magnitude: 7.9
Size: 4.0'
Number of stars: 60
Brightest star: 9.7
Classification: II 2 m n
Description: Cl,pRi,pC,fan-sh,*pB
Notes: H VII 44,L region of F neby to SE
Observer: Iiro Sairanen
Location: Ania, Pirkkala, Finland
Date: 16/17.9.2009 1:00
Instrument: Newton 300/1500 mm
Magnification: 429x	Filter: -
Field: 9'	Seeing: 2
Background sky: 2	NE lim mag: 6.7
Visuality: I	Height: 89°
Weather: +7°C
Description: A small (4') triangular cluster of 12-14 mag stars on the zenith. Difficult to track with a dobson because of 89 degrees height.
Updated: 18.11.2009 20:18