Click here to see a larger version
This image shows several different objects: NGC 2035, the Dragon’s Head nebula, is the greenish-white nebulosity at the left side of the image. The red “fan”-like nebula on the lower right is NGC 2014. The bluish-green round nebula close to NGC 2014 is NGC 2020, a nebula that surrounds HD 269748, a 13.1 mag Wolf Rayet star. This narrowband image has been processed coding Halpha to Red and OIII to both green and blue (white means broadband emission, as both filters get a similar image density).
Additional Information
Object
Name(s): NGC 2035-NGC 2014-NGC 2020
Type: Emission nebulae
RA: 05h 33m 12s
Dec: -67º 36’ 15”
Constellation: Doradus
Size (arcmin): 3×3
Magnitude:
Distance: 170,000 ly
Image
Date: 2015-09-24 to 2015-10-05
Location: iTelescope.net, SSO near Coonabarabran, NSW Australia
Size (arcmin): 34×32
Telescope: Planewave CDK 20” f/6.8
Camera: SBIG STX16803 (4096x4096pix)
Guiding: Astrodon MonsterMOAG off-axis guider
Total exposure: 17 hs (Halpha: 8 hs; OIII: 7.5 hs; RGB: 1.5)
Processing: CCDStack, Photoshop CC 2016 and PixInsight