Iiro's DeepSky Sketches

Name: NGC 6440	Other name: GCL 77
RA: 17h 48.9m	DEC: -20° 22'
Constellation: SGR
Type: Globular cluster
Magnitude: 9.7
Size: 1.7'
Classification: V
Description: pB,pL,R,bM
Notes: H I 150,* eF
Observer: Iiro Sairanen
Location: Pico de la Nieve (1540 m), La Palma, Spain
Date: 3/4.4.2008 5:20
Instrument: Newton 110/805 mm
Magnification: 230x	Filter: -
Field: 21'	Seeing: 3
Background sky: 2	NE lim mag: 6.7
Visuality: I	Height: 35°
Weather: +9°C, strong wind
Description: A pretty extensive core compared to surrounding halo. It's little bit elongated in NE-SW direction.
Updated: 3.8.2008 20:44