Hubble image archive
Draco Dwarf Spheroidal
A team of astronomers analyzed observations by NASA's Hubble Space Telescope taken over a span of 18 years to measure the dynamic motions of stars within the Draco dwarf galaxy. The telescope's extensive baseline and data archive enabled the team to build the most accurate three-...
- Date
- Jul 11, 2024
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2024-017-01j01t3matw8dqz77sqmjbqbck
A team of astronomers analyzed observations by NASA's Hubble Space Telescope taken over a span of 18 years to measure the dynamic motions of stars within the Draco dwarf galaxy. The telescope's extensive baseline and data archive enabled the team to build the most accurate three-dimensional map of the stars' movements within the system. These improved measurements are helping to shed "light" on the mysterious qualities and behavior of dark matter, the universe's invisible "glue."
Image Details
| About The Object | |
|---|---|
| Object Name | Draco Dwarf Spheroidal |
| Object Description | Dwarf spheroidal galaxy |
| R.A. Position | 17:20:12.4 |
| Dec. Position | +57:54:55 |
| Constellation | Draco |
| Distance | 260,000 light-years |
| Dimensions | Wide field image is 1 degree across (about 4,500 light-years) Inset images are about 3 arcmin across (about 226 light-years) |
| About The Data | |
| Data Description | The HST observations include those from program (R. van der Marel) and program (S.T. Sohn). Image Processing: Joseph DePasquale (STScI) |
| Instrument | WFC3, ACS |
| Exposure Dates | October 2013, October 2022 |
| Filters | F606W, F814W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the WFC3/UVIS and ACS instruments on the Hubble Space Telescope. Several filters were used to sample various wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Cyan= F606W, Orange= F814W |
More Images From This Period
Downloads
- Full Res (For Display), 5174 X 3513, PNG (36.15 MB)
- Full Res (For Print), 5174 X 3513, TIF (44.80 MB)
- 2000 X 1358, JPG (1.45 MB)
- Unannotated Full Res (For Display), 5174 X 3513, PNG (36.27 MB)
- Unannotated Full Res (For Print), 5174 X 3513, TIF (45.13 MB)
- Unannotated, 2000 X 1358, JPG (1.47 MB)
- DSS Wide Field - Full Res (For Display), 3522 X 3520, PNG (25.85 MB)
- DSS Wide Field - Full Res (For Print), 3522 X 3520, TIF (33.31 MB)
- DSS Wide Field, 2000 X 1999, JPG (2.77 MB)
- Hubble Field 1 - Full Res (For Display), 3901 X 4012, PNG (28.04 MB)
- Hubble Field 1 - Full Res (For Print), 3901 X 4012, TIF (34.39 MB)
- Hubble Field 1, 1945 X 2000, JPG (1.32 MB)
- Hubble Field 2 - Full Res (For Display), 3960 X 3855, PNG (27.68 MB)
- Hubble Field 2 - Full Res (For Print), 3960 X 3855, TIF (34.36 MB)
- Hubble Field 2, 2000 X 1947, JPG (1.56 MB)
Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov