| Peekaboo Galaxy[1] | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra[2] |
| Right ascension | 11h 31m 34.6s[1] 11h 31m 35.2s[3] |
| Declination | −31° 40′ 28″[1] −31° 40′ 20″[3] |
| Distance | 22.2 ± 2.3 Mly (6.8 ± 0.7 Mpc)[1][3] |
| Characteristics | |
| Type | Irregular compact blue dwarf galaxy |
| Apparent size (V) | 11 arcsec[1] 1,200 ly (370 pc)[1] |
| Other designations | |
| HIPASS J1131-31; PGC 5060432 | |
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The Peekaboo Galaxy (officially known as HIPASS J1131-31 and PGC 5060432) is an irregular compact blue (suggesting hot young stars) dwarf galaxy in the constellation Hydra.[2] The galaxy is relatively small, at about 1,200 light-years (0.00037 Mpc) across. It is also relatively nearby, at a distance of around 22 million light-years (6.7 Mpc) from Earth.[1] The Peekaboo Galaxy is considered one of the most metal-poor ("extremely metal-poor" (XMP)), least chemically enriched, and seemingly primordial, galaxies known.[1][4][5][6][7][8]
- ^ a b c d e f g h Karachentsev, J.D.; et al. (12 November 2022). "Peekaboo: the extremely metal poor dwarf galaxy HIPASS J1131-31". Monthly Notices of the Royal Astronomical Society. 518 (4): 5893–5903. arXiv:2212.03478. doi:10.1093/mnras/stac3284. Retrieved 18 December 2022.
- ^ a b Lea, Robert (7 December 2022). "Peekaboo! Strange tiny galaxy provides a glimpse into the universe's early history - The local 'metal-poor' dwarf galaxy was hidden in the glare of a foreground star earning the nickname Peekaboo". Space.com. Retrieved 18 December 2022.
- ^ a b c Staff (6 December 2022). ""Peekaboo" Dwarf Galaxy HIPASS J1131–31". Hubble Space Telescope. Retrieved 18 December 2022.
- ^ "Peekaboo! A Tiny, Hidden Galaxy Provides A Peek Into The Past - Tucked Away In A Local Pocket Of Dark Matter, A Late-Blooming Dwarf Galaxy Looks Like iI Belongs In The Early Universe". NASA. 6 December 2022. Retrieved 18 December 2022.
- ^ Parks, Jake (16 December 2022). "Hubble spots a nearby galaxy that looks like it belongs in the early universe - The extremely metal-poor galaxy, nicknamed Peekaboo, relatively recently emerged from behind a fast-moving star". Astronomy. Retrieved 18 December 2022.
- ^ Cite error: The named reference
UT-20221207was invoked but never defined (see the help page). - ^ Cite error: The named reference
PHY-20221215was invoked but never defined (see the help page). - ^ Starr, Michelle (9 December 2022). "'Peekaboo' Galaxy Emerges From Hiding, And It's A Time Capsule of The Universe". ScienceAlert. Retrieved 18 December 2022.
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