IC 5148

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 above.

Additional Information


Name(s): IC 5148, Spare Tire Nebula

Type: Planetary Nebula

RA:  21h 59m 30.4s

Dec: -39ΒΊ 22’ 38.3”

Constellation: Grus

Size (arcmin): 2×2

Magnitude: +11

Distance: 3,000 ly


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

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