Iiro's DeepSky Sketches

Name: NGC 6309	Other name: PK 9+14.1
RA: 17h 14.1m	DEC: -12° 55'
Constellation: OPH
Type: Planetary nebula
Magnitude: 11.6
Size: 20'' x 10''
Surface brightness: 8.6
Brightest star: 16.3
Classification: 3b(6)
Description: B,S,bet 2*v nr
Notes: Box Nebula
Observer: Iiro Sairanen
Location: Pico de la Nieve (1540 m), La Palma, Spain
Date: 4/5.4.2008 3:55
Instrument: Newton 110/805 mm
Magnification: 230x	Filter: -
Field: 21'	Seeing: 2
Background sky: 2	NE lim mag: 6.8
Visuality: I	Height: 33°
Weather: +9°C
Description: Almost stellar ~8.5 mag blue object, a little bit larger than similar star. Might be weakly NW-SE oriented.
Updated: 16.6.2008 20:50