Iiro's DeepSky Sketches

Name: Messier 17	Other name: NGC 6618
RA: 18h 20.8m	DEC: -16° 11'
Constellation: SGR
Type: Cluster + nebulosity
Magnitude: 6
Size: 11.0'
Surface brightness: 13
Number of stars: 40
Brightest star: 9.3
Classification: III 3 m n:
Description: !!!,B,eL,eiF,2 hooked
Notes: Omega nebula,Swan Nebula,many F outer loops,use filter
Observer: Iiro Sairanen
Location: Säijä, Lempäälä, Finland
Date: 26/27.9.2008 22:15
Instrument: Newton 300/1500 mm
Magnification: 88x	Filter: UHC
Field: 46'	Seeing: 3
Background sky: 2	NE lim mag: 6.5
Visuality: I	Height: 5°
Weather: +1°C
Description: Hurried sketch because object was only few degrees above horizon and set behind the trees during the observation. UHC filter helped a bit.
Updated: 14.3.2009 16:15
Name: Messier 17	Other name: NGC 6618
RA: 18h 20.8m	DEC: -16° 11'
Constellation: SGR
Type: Cluster + nebulosity
Magnitude: 6
Size: 11.0'
Surface brightness: 13
Number of stars: 40
Brightest star: 9.3
Classification: III 3 m n:
Description: !!!,B,eL,eiF,2 hooked
Notes: Omega nebula,Swan Nebula,many F outer loops,use filter
Observer: Iiro Sairanen
Location: Base del Teide (2280m), Tenerife, Spain
Date: 18/19.4.2004 3:10
Instrument: Newton 110/805 mm
Magnification: 107x	Filter: -
Field: 28'	Seeing: 3
Background sky: 2	NE lim mag: 7
Visuality: II	Height: 23°
Weather: +9°C, very good and dry
Description: A beautiful celestial swan was visible easily even with direct vision. The nebula is very bright and contains several details. Three brightenings are in the swan's body, the brightest one is just like a wing. Three other nebulae lies east from the main nebula. One of the my favourite objects.
Updated: 15.5.2004 14:09