Andromeda I

Andromeda I
Andromeda I oleh HST
Data pengamatan (J2000 epos)
Rasi bintangAndromeda
Asensio rekta 00j 45m 39.8d[1]
Deklinasi +38° 02′ 28″[1]
Pergeseran merah-368 ± 11 km/s[1]
Jarak2.40 ± 0.08 Mly (735 ± 23 kpc)[2][3][4]
Magnitudo semu (V)13.6[1]
Ciri-ciri
JenisdSph
Ukuran semu (V)2.5′ × 2.5′[1]
Ciri-ciri pentingGalaksi satelit M31
Penamaan lain
And I,[2] Anon 0043+37,[1] PGC 2666[1]

Andromeda I adalah sebuah galaksi katai bulat[5] sekitar 2.40[4] juta tahun cahaya jaraknya dari Bumi, di rasi bintang Andromeda. Andromeda I merupakan bagian dari Grup Lokal galaksi dan galaksi satelit dari Galaksi Andromeda (M31). Kurang lebih galaksi ini terletak pada 3.5 derajat di selatan, dan sedikit di arah timur dari M31.[6] Per 2005, Andromeda I menjadi dSph pendamping terdekat M31[7] dengan perkiraan jarak yang diproyeksikan yaitu ~40 kpc[4] atau ~1500.000 tahun cahaya.[6]

Referensi

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for Andromeda I. Diakses tanggal 2008-01-21.
  2. ^ a b I. D. Karachentsev; V. E. Karachentseva; W. K. Hutchmeier; D. I. Makarov (2004), "A Catalog of Neighboring Galaxies", Astronomical Journal, 127 (4): 2031–2068, Bibcode:2004AJ....127.2031K, doi:10.1086/382905
  3. ^ Karachentsev, I. D.; Kashibadze, O. G. (2006), "Masses of the local group and of the M81 group estimated from distortions in the local velocity field", Astrophysics, 49 (1): 3–18, Bibcode:2006Ap.....49....3K, doi:10.1007/s10511-006-0002-6, S2CID 120973010
  4. ^ a b c McConnachie, A. W.; Irwin, M. J.; Ferguson, A. M. N.; Ibata, R. A.; et al. (May 2004), "Determining the location of the tip of the red giant branch in old stellar populations: M33, Andromeda I and II", Monthly Notices of the Royal Astronomical Society, 350 (1): 250, arXiv:astro-ph/0401453, Bibcode:2004MNRAS.350..243M, doi:10.1111/j.1365-2966.2004.07637.x, S2CID 18742035
  5. ^ van den Bergh, Sydney (January 1972), "Search for Faint Companions to M31", Astrophysical Journal, 171: L31, Bibcode:1972ApJ...171L..31V, doi:10.1086/180861
  6. ^ a b Andromeda I, Students for the Exploration and Development of Space (SEDS), July 25, 2001
  7. ^ Pritzl, Barton J.; Armandroff, Taft E.; Jacoby, George H.; Da Costa, G. S. (May 2005), "The Dwarf Spheroidal Companions to M31: Variable Stars in Andromeda I and Andromeda III", The Astronomical Journal, 129 (5): 2232–2256, arXiv:astro-ph/0501083, Bibcode:2005AJ....129.2232P, doi:10.1086/428372, S2CID 9749493

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.