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> The reflection nebulae NGC 1973-75-77 in Orion

The reflection nebulae NGC 1973-75-77 in Orion

author: Anglo-Australian Observatory/David Malin Images/Novapix

reference: a-neb19-77002

Image Size 300 DPI: 51 * 51 cm

This group of nebulous stars is just half a degree north of the much brighter Orion Nebula and has largely been ignored because of it. The group of stars here appear as a single star to the unaided eye, the northernmost 'star' in the sword of Orion. Most of the blue nebulosity is starlight scattered by dust, while some of the stars are sufficiently hot to excite the wisps of hydrogen that linger here and create a distinctive red glow. To the south of the nebula (at the bottom of the picture) faint traces of the yellow reflected light of the Orion nebula can just be detected.

Keywords for this photo:

1983 - AAO - ASTRONOMY - NEBULA - NGC 1973 - NGC 1975 - NGC 1977 - ORION - POSTER - REFLECTION NEBULA - SIDING SPRING - STAR -