Iiro's DeepSky Sketches

Name: NGC 6553	Other name: GCL 88
RA: 18h 9.3m	DEC: -25° 54'
Constellation: SGR
Type: Globular cluster
Magnitude: 8.3
Size: 3.2'
Classification: XI
Description: F,L,lE,vglbM,rr
Notes: H IV 12,* mags 20...
Observer: Iiro Sairanen
Location: Pico de la Nieve (1540 m), La Palma, Spain
Date: 3/4.4.2008 5:45
Instrument: Newton 110/805 mm
Magnification: 161x	Filter: -
Field: 25'	Seeing: 3
Background sky: 2	NE lim mag: 6.7
Visuality: I	Height: 31°
Weather: +9°C, strong wind
Description: Granular, no clear core, curved brightening goes through.
Updated: 15.2.2009 22:43