KKs 3

Coordinates: 02h 24m 44.4s, −73° 30′ 51″

KKs 3
Observation data
Epoch
Constellation Hydrus
Right ascension 02h 24m 44.4s [1]
Declination −73° 30′ 51″ [1]
Apparent dimension (V)
Characteristics
TypedSph [2]
Other designations
LEDA 9140,[3] PGC 9140,[4] SGC 022423-7344.3,[3] SGC 0224.3-7345,[4] KKs 3

KKs 3 is a dwarf galaxy in the Local Cluster. It is unusual because it is gas poor and very isolated in the halo of the local group. KKs 3 is 7,000,000 light years away from Earth. It is categorised as a dwarf speroidal dSph galaxy.[2] The mass of KKs 3 is 2.3 × 107M☉ (23 million times the mass of the Sun) with a blue absolute magnitude of −10.8.[1] Three-quarters of its stars are over 12 billion years old.[1] Coordinates are R.A. = 02h 24m 44.4s, Dec. = −73°30′51".[1]

It was discovered in December 2014 thanks to the image taken in August by the Hubble telescope.[5]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 I. D. Karachentsev; L. N. Makarova; D. I. Makarov; R. B. Tully et al. (6 November 2014). "A new isolated dSph galaxy near the Local Group". Monthly Notices Letters of the Royal Astronomical Society (MNRAS Letters) (11 February 2015) 447 (1): L85-L89. arXiv:1411.1674. Bibcode:2014arXiv1411.1674K. doi:10.1093/mnrasl/slu181.
  2. ↑ 2.0 2.1 Massey, Robert (22 December 2014). "The Milky Way's new neighbour". Retrieved 23 December 2014.
  3. ↑ 3.0 3.1
  4. ↑ 4.0 4.1
  5. ↑ Yeager, Ashley (22 December 2014). "Hubble telescope spots our galaxy's newest neighbor". Retrieved 23 December 2014.