NGC 2261. 2264, the Cone nebula and Trumpler 5
AAO image reference UKS 29.    « Previous || Next »

NGC 2261. 2264, the Cone nebula, Christmas tree cluster and Trumpler 5
Top left is NE. Image width is about 100 arc min
Image and text © 1989-2010, Australian Astronomical Observatory. Photograph from UK Schmidt plates by David Malin.

The western end of the large constellation of Monoceros is crossed by the Galactic plane and so is rich in the ingredients of star formation. Only five degrees south (not shown) is the beautiful Rosette nebula, also close to the Galactic plane. The picture here is not particularly beautiful, but it is full of interest and variety.

To the east (left) is the outline of the dark Cone nebula with its distinctive bright tip, apparently pointing to the brightest star in the photograph, S Monocerotis at the top (north) of the photograph. All around is faint nebulosity, hinting at star formation in the region. Around the dusty red nebula there are areas where the light from background stars is blocked out by dust which is unlit. At the lower center of the picture is Hubble's variable nebula (NGC 2261), a young star in a dusty cocoon, while at right is a large, old, open cluster of stars, Trumpler 5.

Related images
AAT 13.   The Cone nebula in the NGC 2264 cluster
AAT 14.   NGC 2264 and S Monocerotis
AAT 14a. NGC 2264, the Cone nebula and S Monocerotis
AAT 14b. The fox-fur nebula and S Monocerotis
AAT 91.   Trumpler 5
AAT 96.   NGC 2261, Hubble's variable nebula
Constellation of Monoceros (external site)

For details of object position and photographic exposure, search technical table by UKS reference number.

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Updated by David Malin, 2010, July 25