Glowing gas and obscuring dust of the emission nebula IC1795 – part of the Heart Nebula (NGC896) – located in a complex of star forming regions at the edge of the large molecular cloud in the constellation Cassiopeia. The colours in the image were created using the Hubble palette which maps emission from oxygen, hydrogen, and sulphur atoms to blue, green and red.
Right ascension: 2h 26m 50.8s | Declination: +62° 00′ 48.2″ | Distance: 6,000 Light Years
Field of view: 57 x 38 arcmin
Camera: SBIG ST-10XME
Telescope: William Optics Megrez 120 F/7.5
Guiding: Starlight Xpress Active Optics (SXV-AO-LF) unit
Filters: Baader Ha (7nm), OIII (8.5nm), SII (8nm)
Exposures: Ha 20 x 15 min; OIII 24 x 15 min; SII 26 x 15 min
Total exposure: 17.5 hours
Image composition: Colour Mapped Narrowband Ha:SII:Ha:OIII
Scale: 1.56 arcsec/pixel
Image acquired: 5, 6, 10 & 14 November 2012 from Bristol (UK)
Image capture with MaxIm DL, FocusMax, ACP; Image processed with MaxIm DL (Fat Tail Deconvolution, DDP), Photoshop CS4