Iiro's DeepSky Sketches

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Name: NGC 6539Other name: GCL 85
RA: 18h 4.8m DEC: -7° 35'
Constellation: SER
Type: Globular cluster
Magnitude: 9.6
Size: 2.5'
Classification: X
Description: vS,F
Notes: In heavily obscured area
Observer: Iiro Sairanen
Location: Ania, Pirkkala, Finland
Date: 23/24.9.2009 22:00
Instrument: Newton 300/1500 mm
Magnification: 214xFilter: -
Field: 23'Seeing: 4
Background sky: 3NE lim mag: 6.5
Visuality: IVHeight: 14°
Weather: +7°C
Description: Little brighter core, somewhat granular with averted vision.
Updated: 28.10.2009 22:22