Dwarf irregular galaxy UGC 8091
For the end of the year and the holiday season Hubble has captured the festive bundle of lights known as UGC 8091. UGC 8091, also known as GR 8, lies around seven million light-years from Earth in the constellation Virgo. It is a dwarf irregular galaxy: a comparatively small, low-mass galaxy without a distinct or uniform shape.
The filters used in this image date from 2006 up to 2021, and were taken by two of Hubble’s most advanced instruments: the Wide Field Camera 3 and the Advanced Camera for Surveys. An astonishing twelve filters combine to produce this image, with light from the mid-ultraviolet right through to the red end of the visible spectrum contributing. The blossoming patches of red represent light emitted by excited hydrogen molecules in hot, energetic stars that have formed in recent starbursts. The other glittering lights on show are a mix of older stars.
[Image description: A collection of stars and galaxies fill the scene against a dark background. The image is dominated by a dense collection of stars that make up the irregular galaxy UGC 8091. The stars span a variety of colours, including blue and orange, with patches of blue occupying the central part of the galaxy. There are also visible circular regions of red/pink gas within the galaxy.]
Credit:ESA/Hubble, NASA Y. Choi (NOIRLab), K. Gilbert (Space Telescope Science Institute), J. Dalcanton (Flatiron Institute and University of Washington)
About the Image
Id: | heic2313a |
---|---|
Type: | Observation |
Release date: | 20 December 2023, 16:00 |
Related releases: | heic2313 |
Size: | 4264 x 2453 px |
About the Object
Name: | UGC 8091 |
---|---|
Distance: | 7 million light years |
Constellation: | Virgo |
Category: | Galaxies |
Image Formats
Coordinates
Position (RA): | 12 58 40.63 |
---|---|
Position (Dec): | 14° 13' 2.60" |
Field of view: | 2.84 x 1.63 arcminutes |
Orientation: | North is 64.9° left of vertical |
Colours & filters
Band | Wavelength | Telescope |
---|---|---|
Ultraviolet ISM feature | 218 nm |
Hubble Space Telescope
WFC3 |
Ultraviolet UV | 225 nm |
Hubble Space Telescope
WFC3 |
Ultraviolet UV | 275 nm |
Hubble Space Telescope
WFC3 |
Optical U | 336 nm |
Hubble Space Telescope
WFC3 |
Optical O II | 373 nm |
Hubble Space Telescope
WFC3 |
Optical Hß | 487 nm |
Hubble Space Telescope
WFC3 |
Optical O III | 502 nm |
Hubble Space Telescope
WFC3 |
Optical g | 475 nm |
Hubble Space Telescope
ACS |
Optical g | 475 nm |
Hubble Space Telescope
ACS |
Optical I | 814 nm |
Hubble Space Telescope
ACS |
Optical H-alpha | 656 nm |
Hubble Space Telescope
WFC3 |
Optical H-alpha + N II | 657 nm |
Hubble Space Telescope
WFC3 |
Infrared YJ | 1.1 μm |
Hubble Space Telescope
WFC3 |
Infrared H | 1.6 μm |
Hubble Space Telescope
WFC3 |