| Bedin I | |
|---|---|
 Long-exposure photograph of Bedin I (left)[a] | |
| Observation data (J2000 epoch) | |
| Constellation | Pavo |
| Right ascension | 19h 10m 45.41s |
| Declination | −59° 55′ 04.32″ |
| Distance | 8.7+0.5 −0.7 Mpc |
| Apparent magnitude (V) | 19.94 |
| Absolute magnitude (V) | −9.76 |
| Characteristics | |
| Size | 840 × 340 pc |
| Apparent size (V) | 20" × 8" |
Bedin I is a dwarf spheroidal galaxy located in the constellation Pavo. It is situated around 28.38 million light-years from Earth, behind the globular cluster NGC 6752. Bedin I is possibly one of the oldest galaxies known, having formed around 10–13 billion years ago, and is one of the most isolated dwarf galaxies known, situated around 2.12 million light-years away from NGC 6744, its nearest neighbor with which it may be physically associated. As such, it has been deemed by astronomers as a "fossil" from the early universe. It was accidentally discovered by Italian astronomer Luigi Bedin, whose team was studying white dwarfs in NGC 6752 using the Hubble Space Telescope in September 2018; the discovery was announced in a paper published in January 2019.
- ^ a b Space Telescope Science Institute (31 January 2019). "Bedin 1 in NGC 6752". Hubblesite. Archived from the original on 1 February 2019. Retrieved 1 February 2019.
Object Position - R. A. 19:10:45.41 Dec. -59:55:04.32; Dimensions - Image is about 1 arcmin across (about 9,000 light-years); Instrument - ACS/WFC; Exposure Dates - September 9–13, 2018
- ^ Plait 2019, "...it's sitting right near the core of NGC 6752, so there are lots of far brighter stars sitting near and even on top of it, contaminating the sample. [...] the galaxy is near the edge of the image's field of view."
- ^ Bedin et al. 2019, "Unfortunately, Bedin I is very close to the border of the field of view, where the large dithers gave us an overall incomplete and shallower view with respect to the centre of the fov."
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