Iiro's DeepSky Sketches

Name: Messier 83	Other name: NGC 5236
RA: 13h 37m	DEC: -29° 52'
Constellation: HYA
Type: Galaxy
Magnitude: 7.5
Size: 13.1' x 12.2'
Surface brightness: 12.8
Classification: SBc
Description: vB,vL,E55,esBMN,spir
Notes: Fast SupNova producer-4 in 50 yrs
Observer: Iiro Sairanen
Location: Wicherina, Greenough, Australia
Date: 11/12.1.2010 2:35
Instrument: Newton 254/1200 mm
Magnification: 171x	Filter: -
Field: 29'	Seeing: 2
Background sky: 1	NE lim mag: 7.5
Visuality: I	Height: 39°
Weather: +10°C, windy
Description: A very bright but still challenging galaxy with a superb spiral structure. It's pretty difficult to see clearly how spiral arms circulate the central bar. There are also several knots and stars among the arms.
Updated: 16.9.2010 22:00
Name: Messier 83	Other name: NGC 5236
RA: 13h 37m	DEC: -29° 52'
Constellation: HYA
Type: Galaxy
Magnitude: 7.5
Size: 13.1' x 12.2'
Surface brightness: 12.8
Classification: SBc
Description: vB,vL,E55,esBMN,spir
Notes: Fast SupNova producer-4 in 50 yrs
Observer: Iiro Sairanen
Location: Pico de la Nieve (1540 m), La Palma, Spain
Date: 4/5.4.2008 2:25
Instrument: Newton 110/805 mm
Magnification: 62x	Filter: -
Field: 66'	Seeing: 2
Background sky: 2	NE lim mag: 6.8
Visuality: I	Height: 31°
Weather: +9°C
Description: M83 is one of the finest galaxies in the sky. I observed it first time in Tenerife (2004). A superb spiral structure was then well-defined. Someway I got now little problems at first, central bar and nucleus were obvious but I foraged for spiral arms several minutes. Finally I caught them and noticed that western arm is much brighter than eastern. But the eastern arm has divided in two parts. There is also fine string of stars on the southside.
Updated: 3.8.2008 20:49
Name: Messier 83	Other name: NGC 5236
RA: 13h 37m	DEC: -29° 52'
Constellation: HYA
Type: Galaxy
Magnitude: 7.5
Size: 13.1' x 12.2'
Surface brightness: 12.8
Classification: SBc
Description: vB,vL,E55,esBMN,spir
Notes: Fast SupNova producer-4 in 50 yrs
Observer: Iiro Sairanen
Location: Boca de Tauce (1980m), Tenerife, Spain
Date: 17/18.4.2004 23:15
Instrument: Newton 110/805 mm
Magnification: 64x	Filter: -
Field: 47'	Seeing: 3
Background sky: 3	NE lim mag: 6.6
Visuality: II	Height: 21°
Weather: +2°C, windy
Description: Easy counter-clockwise spiral structure was in view at 64x. Starlike nucleus. A star just west from the centralbar.
Updated: 15.5.2004 12:51