NGC 1532/1 - INTERACTING GALAXIES
EDGE ON BARRED SPIRAL IN ERIDANUS
(ra: 04.12,04/ dec -32:52)
January 2010, Mercedes Observatory Buenos Aires, Argentina
TYPE: Barred Spiral Galaxy
Apparent Magnitude: 9.8
Apparent Diameter: 12.6 x 3.3 arc minutes
DISTANCE: 55 million lights years
SCOPE: Celestron C8 SCT working at f5.1
CAMERA: SXVF H9
GUIDING: William Optics Zenithstar 66 with WO 0.8 x fr/ff
IMAGE ACQUISITION: AstroArt 3.0 - Control Interface 3.72 plug in
FILTERS: Astronomik Type II - Atik Filter Wheel
SKY CONDITIONS: rural skies - seeing 2.3
EXPOSURES: LRGB (90,30,30,40)
PROCESSING: Images Plus, CCD Sharp, Photoshop CS2
OBJECT DESCRIPTION AND IMAGE SESSION
The image shows a common practice in the Universe. Gravitational forces result in interactive processes where larger Galaxies swallows smaller ones. In this case 1532 the larger one, has engaged NGC 1531 a lenticular dwarf galaxy lying in the end of the main galaxy western arm. NGC 1532 is twice the physical size of M51 in a edge on perspective from Earth, however both are similar systems.
The core of NGC 1532 is bright and has intrigued dust lanes that were enhanced with RL deconvolution. The image present also countless distant and faint galaxies scattering in the entire background.
NGC 1532 and 1531 are nice target for medium size telescopes.