Iiro's DeepSky Sketches

Name: Messier 68	Other name: NGC 4590
RA: 12h 39.5m	DEC: -26° 45'
Constellation: HYA
Type: Globular cluster
Magnitude: 8.2
Size: 9.8'
Surface brightness: 13
Classification: X
Description: L,eRi,vC,iR,rrr,st 13...
Observer: Iiro Sairanen
Location: Pico de la Nieve (1540 m), La Palma, Spain
Date: 4/5.4.2008 1:35
Instrument: Newton 110/805 mm
Magnification: 161x	Filter: -
Field: 25'	Seeing: 2
Background sky: 2	NE lim mag: 6.8
Visuality: I	Height: 34°
Weather: +9°C
Description: Granular all through and a large mount of individual stars are visible with direct vision. The cluster is a bit elongated in W-E and has a large core-area. The southern edge of the core is sharper than other edges. The brightest stars are ~13 mag.
Updated: 17.6.2008 19:38
Name: Messier 68	Other name: NGC 4590
RA: 12h 39.5m	DEC: -26° 45'
Constellation: HYA
Type: Globular cluster
Magnitude: 8.2
Size: 9.8'
Surface brightness: 13
Classification: X
Description: L,eRi,vC,iR,rrr,st 13...
Observer: Iiro Sairanen
Location: Los Roques (2117m), Tenerife, Spain
Date: 16/17.4.2004 2:20
Instrument: Newton 110/805 mm
Magnification: 107x	Filter: -
Field: 28'	Seeing: 3
Background sky: 2	NE lim mag: 6.9
Visuality: II	Height: 31°
Weather: +2°C
Description: Fully grainy and several individual stars are seen. Brightenings to W and SE from the core.
Updated: 15.5.2004 12:18