Sh2-279, the Running Man nebula

Constellation: Orion

The Running Man nebula (also known as Sh2-279) comprises NGC 1973, NGC 1975 and NGC 1977. They are divided by darker nebulous regions, the Running Man. See also the images under South of Orion’s BeltLink to interactive sky chart.

Dates:

Images 1 and 2 were taken in January 2023

Image 3 was taken in December 2025

Telescope & Mount:

Image1: Planewave CDK17 on a Planewave L-500 mount.
Image2: Celestron 9.25″ EdgeHD with Hyperstar 4.0 on a 10Micron GM1000HPS mount.
Image3: Planewave CDK17 on a  Software Bisque Paramount ME mount.

Imaging:

Image 1: Camera: FLI K4040 (bin 1×1)
Image 2: Camera: ASI2600MC-Pro (bin 1×1)
Image 3: Camera: Player One Zeus Pro (bin 2×2)

Data:
Image 1: Ha: 15x600s, RGB: 12x600s each, total integration time: 8h 30′
Image 2: Optolong L-eNhance: 120x60s, t
otal integration time: 2h
Image 3: Ha: 42x300s, R: 180x60s, G: 170x60s, B: 178x60s, total integration time: 12h 18′