NGC 3372. Caldwell 92. A Fragment


Click on the image for a larger version

NGC 3372, the Eta Carinae Nebula is very well known as a stellar nursery. This fragment, taken a year ago (February 2017), was intended to be part of the 2×2 mosaic started with the first 2×1 mosaic found here. A wrong rotation angle prevented important regions of this frame to be in the final mosaic, and the mosaic was never finalized. Anyhow, this image is beautiful and interesting enough in itself. This region is located just South of the main star giving its name to the Nebula (Eta Carinae). The Southern tip of the triangular-shaped nebula containing Eta Carinae can be seen at the top center. One of the typical outcomes of a star-birth region is the presence of YSOs (Young Stellar Objects) as well as of HHs (Herbig-Haro objects). This image includes as many as ten Herbig Haro objects and countless YSOs. In the below included annotated image, all ten HHs are identified. The fact that it has been processed in  false color, according to the Hubble Color Palette (HCP), allows for clear distinction of the different chemical compositions across the nebulosity. Several dark (dusty) nebulosities, gas jets as well as wisps of different composition can also be seen.


Additional Information


Name(s): NGC 3372. Eta Carinae Nebula. Caldwell 92

Type: Emission Nebula

RA:  10h 45m 58s

Dec: -60º 01’ 35”

Constellation: Carina

Size (arcmin): 120×120

Magnitude: +1.0

Distance: 10,000 ly


Date: 2017-02-11 thru 2017-03-22

Location:, SSO near Coonabarabran, NSW Australia

Size (arcmin): 36×36

Telescope: Planewave CDK 20” f/6.8

Camera: SBIG STX16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 25.5 hours (Ha: 10.5 h; OIII: 7.5 h; SII: 6 h; RGB 1.5 h)

Processing: CCDStack, Photoshop CC 2018

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