M 83 (NGC 5236) Galaxy in Hydra
Located at: RA 13 hours 37 minutes 00 seconds, Dec -29 degrees 52 minutes 04 seconds
Size: 12.8' x 11.4' Magnitude: 8.2 blue Class: SAB(s)c HII
North is up
West to the right
14.5" f5 Newtonian reflector
Miranda Laborec 35mm camera, ST4 guided, hypered Kodak Technical Pan 2415 film, 37 F outside temp
No filter, 75 minutes, 05/22/1993
D-19, 6.0 minutes @ 68F, 35mm negative scanned with Polaroid SprintScan 4000 (4000 dpi)
Scan is a crop from 35mm negative, scan processed in Photoshop CS5.1
(near) Mt Pinos, CA
|Notes:||This is one of the Messier objects not currently 'visible' from
my Thousand Oaks observatory ... In an effort to
'fill in' my Messier images page, I will post what film images I have.
My film scanner is not presently hooked up, so I am using scans made for
my old film website from the early 2000's.
Most of the film scans from the 14.5" f5 Newtonian reflector were centered on the object of interest, and were generally scanned to file as a 2000 x 2000 pixel crop of the 35mm negative.
Reduced in Photoshop to 1600 pixels, and saved under "Save for Web & Devices".
From the NGC / IC Project:Contemporary Visual Observation(s) for NGC 5236
NGC 5236 = M83 = E444-081 = MCG -05-32-050 = UGCA 366 = PGC 48082 13 37 00.3 -29 51 58 V = 07.5; Size 12.9x11.5; Surf Br = 12.8 18" (7/11/05 - Magellan Observatory, Australia): in addition to the complex 3-armed spiral structure I was surprised to see a fairly obvious linear bar that extended through the small, intense core in SW-NE orientation. The fairly tightly wound spiral arm that wraps from the east side of the core around the south side in a counter- clockwise orientation clearly emerges from the NE end of this bar. The spiral arms that begin on the south and west side more vaguely begin in the general glow near SW end of the bar. 13.1" (2/20/04 - Costa Rica): beautiful view with easy spiral structure in excellent seeing conditions. The main central portion of the galaxy appears to be in motion, due to the embedded spiral structure and darker ribbons add to this impression. The three principal arms extending from the galaxy were well seen although they are fairly tightly wound to the main body. 13.1" (2/19/04 - Costa Rica): this impressive galaxy was viewed carefully at both 105x and 166x. The overall size including the spiral arms are ~8'x6'. The halo is broadly concentrated then rises sharply to an intense 25" core that increases to the center. Complex spiral structure is quite obvious. A spiral arm is attached on the east side of the core and wraps around the south side of the galaxy in a counter-clockwise direction. A second arm is attached at the south side of the core and winds to the west a bit on the south side. FInally, an arm is attached on the west side and shoots north before gently bending east along the north side of the outer halo. 12" (6/29/02 - Bargo, Australia): this was my best view of M83 with a beautiful spiral structure clearly evident with multiple knotty arms. Well concentrated with a prominent core and very small nucleus. A very long, spiral arm is attached on the west side of the central core or bar but quickly bends to the north, becoming more spread out and diffuse. It continues to wind along the entire east side of the halo and fades out near a close double star which is the middle of three collinear stars to the SE of the galaxy. Two other principal arms are visible - one is attached on the following end of the core and heads south, wrapping clockwise around the core towards the west. A third arm emerges from the core on the west side and winds clockwise towards the north. Offshoots of the main arms are difficult to trace and contribute to the general background glow of the halo. 13": very bright, large, very bright core, brighter along the central "bar". The shape of the spiral arms and central bar form the Greek letter "Theta" surrounded by a faint halo. 17.5": brighter arm or arc visible north of the core. 8": very bright, bright core, elongated, impressive. - by Steve GottliebHistorical Research Notes / Correction for NGC 5236
NGC 5236 = M 83. See NGC 6634. - Dr. Harold G. Corwin, Jr.