Basic object information
Object name: NGC 4337
Object type: Open cluster
Magnitude: 8.9
Size: 3.5'
Magnitude of brightest star: 10.5
Object classification: II 3 p
Description: Cl,pRi,lC,* 12...14

Catalog information
RA (J2000.0): 12h 24m 06.0s
Dec (J2000.0): -58 07' 00"

Constellation: Crux

Observer: Iiro Sairanen
Obs. place: Ambania, Mullewa, Australia
Date/time: 7/8.1.2010 0:05
Telescope: Newton 110/805 mm
Magn: 115x Filter: -
Field: 43' NE Lim.mag: 6.8
SQM: 21.2 (3) Seeing: 3
Visuality: III Height: 27
Weather: +17C, windy, scattered clouds,
48% Moon in E horizon
 
Granular glow at 38x but when Moon came up, glow disappeared. 115x shows about twenty 12 mag stars and nice 7 mag double nearby.