IC 5148

T-IC5148-HOO-Final6-Halo-C

Click on the image to see a larger version

 

IC 5148, also called the Spare Tire Nebula, is a small (2 arcmin) and faint planetary nebula in the constellation Grus. This nebula has beautiful colors that can be shown with narrowband images. Interesting is the presence of a very faint, but visible, halo around the nebula. This halo is visible in the larger image, but it is more clearly seen in the negative image below.

 

IC5148-HOO-Final4-NegBW-Halo

Additional Information

Object

Name(s): IC 5148, Spare Tire Nebula

Type: Planetary Nebula

RA:  21h 59m 30.4s

Dec: -39º 22’ 38.3”

Constellation: Grus

Size (arcmin): 2×2

Magnitude: +11

Distance: 3,000 ly

Image

Date: 2015 October-November

Location: iTelescope.net, SSO near Coonabarabran, NSW Australia

Size (arcmin): 24×21

Telescope: Planewave CDK 20” f/6.8

Camera: SBIG STX16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 18.5 hours (Halpha: 8.5hs; OIII: 8.5hs, RGB: 1.5hs)

Processing: CCDStack, Photoshop CC 2016

%d bloggers like this: