Hubble Views a Slashing Smudge Across the Sky

Hubble Views Dwarf Galaxy UGC 1281

Hubble Space Telescope image of dwarf galaxy UGC 1281 and galaxy PGC 6700. Credit: ESA/Hubble & NASA; Acknowledgement: Luca Limatola

This newly released Hubble image shows dwarf galaxy UGC 1281 and galaxy PGC 6700.

The galaxy cutting dramatically across the frame of this NASA/ESA Hubble Space Telescope image is a slightly warped dwarf galaxy known as UGC 1281. Seen here from an edge-on perspective, this galaxy lies roughly 18 million light-years away in the constellation of Triangulum (The Triangle).

The bright companion to the lower left of UGC 1281 is the small galaxy PGC 6700, officially known as 2MASX J01493473+3234464. Other prominent stars belonging to our own galaxy, the Milky Way, and more distant galaxies can be seen scattered throughout the sky.

The side-on view we have of UGC 1281 makes it a perfect candidate for studies into how gas is distributed within galactic halos — the roughly spherical regions of diffuse gas extending outwards from a galaxy’s center. Astronomers have studied this galaxy to see how its gas vertically extends out from its central plane, and found it to be a quite typical dwarf galaxy. However, it does have a slightly warped shape to its outer edges, and is forming stars at a particularly low rate.

A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Luca Limatola.

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