• 0.65 d FU Ori FU 05h 45m 22.36s +09° 04′ 12.4″ 9.60 F0Iab prototype FU Orionis star BF Ori BF 26403 05h 37m 13.26s −06° 35′ 00.6″ 9.69 A7III UX Ori star...
    51 KB (100 words) - 02:08, 16 May 2024
  • Thumbnail for Bellatrix
    Bellatrix (redirect from Γ Orionis)
    red supergiant Betelgeuse (Alpha Orionis). It has the Bayer designation γ Orionis, which is Latinized to Gamma Orionis. With a slightly variable magnitude...
    23 KB (2,237 words) - 20:46, 12 March 2024
  • Thumbnail for Rigel
    Rigel (redirect from Beta Orionis)
    constellation of Orion. It has the Bayer designation β Orionis, which is Latinized to Beta Orionis and abbreviated Beta Ori or β Ori. Rigel is the brightest...
    71 KB (7,281 words) - 09:43, 7 June 2024
  • Thumbnail for Betelgeuse
    Betelgeuse (redirect from Alpha Orionis)
    at near-infrared wavelengths. Its Bayer designation is α Orionis, Latinised to Alpha Orionis and abbreviated Alpha Ori or α Ori. With a radius 760 times...
    172 KB (18,256 words) - 03:02, 9 June 2024
  • Thumbnail for Orion (constellation)
    and Pi Orionis), and instead of an arm marked out by Mu Orionis, he holds a club (Chi Orionis). His right leg is represented by Theta Orionis and his...
    46 KB (5,178 words) - 15:15, 6 June 2024
  • Thumbnail for Chi2 Orionis
    Chi2 Orionis (Chi2 Ori / χ2 Orionis / χ2 Ori) /kaɪ.tuːˈɒraɪ/ is a B-type supergiant star in the constellation of Orion. It has an apparent visual magnitude...
    10 KB (753 words) - 02:52, 15 August 2023
  • Tau Orionis (τ Ori, τ Orionis) is a solitary star in the constellation Orion. If an imaginary line is drawn north-west between the stars Rigel and Mintaka...
    10 KB (836 words) - 12:13, 13 August 2023
  • Thumbnail for Xi Orionis
    Xi OrionisOrionis) is a binary star system in the northeastern part of the constellation of Orion, well above the red giant star Betelgeuse in the...
    7 KB (458 words) - 08:17, 21 October 2022
  • Thumbnail for Phi2 Orionis
    Phi2 Orionis is a star in the constellation Orion, where it forms a small triangle on the celestial sphere with the nearby Meissa and Phi1 Orionis. This...
    7 KB (436 words) - 21:22, 3 June 2024
  • Thumbnail for Sh2-264
    Sh2-264 (redirect from Lambda Orionis Ring)
    the Lambda Orionis Ring seen by the Spitzer Space Telescope. Young stars are forming in this region. Barnard 35, a part of the Lambda Orionis Ring seen...
    4 KB (488 words) - 11:23, 21 January 2023
  • Thumbnail for Phi1 Orionis
    Phi1 Orionis is a binary star system in the constellation Orion, positioned less than a degree to the south of Meissa. It is visible to the naked eye...
    8 KB (545 words) - 23:38, 1 October 2023
  • 60 −2.57 1405 K3III HD 53208 53208 34086 07h 04m 05.25s −05° 19′ 26.3″ 5.63 −2.38 1304 K3III suspected variable HD 49147 49147 32474 06h 46m 39.02s −10° 06′ 26...
    41 KB (111 words) - 18:09, 13 February 2024
  • Thumbnail for Omicron1 Orionis
    Omicron1 Orionis (ο1 Ori) is a binary star in the northeastern corner of the constellation Orion. It is visible to the naked eye with an apparent visual...
    10 KB (671 words) - 05:23, 2 December 2022
  • Thumbnail for Pi4 Orionis
    Pi4 Orionis (π4 Ori, π4 Orionis) is a binary star system in the western part of the Orion constellation. It is visible to the naked eye with an apparent...
    9 KB (569 words) - 13:16, 27 October 2022
  • Thumbnail for Gliese 208
    Gliese 208 (redirect from V2689 Orionis)
    2.7 Gyr Other designations Gliese 208, Gj 208, V2689 Orionis, BD+11°878, HIP 26335, HD 245409, TYC 709-63-1, SAO 94695 Database references SIMBAD data...
    8 KB (617 words) - 16:47, 7 June 2024
  • Thumbnail for O-type main-sequence star
    split luminosity classes for the O9s. The two MKK O9 V standards were Iota Orionis and 10 Lacertae. The revised Yerkes standards ("MK") presented listed in...
    12 KB (1,296 words) - 01:40, 1 May 2024
  • Thumbnail for Nu Orionis
    Nu OrionisOrionis) is a binary star system in the northeastern part of the constellation Orion. It should not be confused with the variable star NU...
    10 KB (719 words) - 16:49, 12 August 2023
  • Thumbnail for V1005 Orionis
    V1005 Orionis is a young flare star in the equatorial constellation of Orion. It has the identifier GJ 182 in the Gliese–Jahreiß catalogue; V1005 Ori...
    21 KB (1,786 words) - 10:59, 13 August 2023
  • Thumbnail for Pi2 Orionis
    Pi2 Orionis (π2 Ori, π2 Orionis) is the Bayer designation for a solitary star in the equatorial constellation of Orion. Although the Bright Star Catalogue...
    8 KB (551 words) - 04:54, 18 November 2022
  • Thumbnail for Pi6 Orionis
    Pi6 Orionis (π6 Ori, π6 Orionis) is a solitary star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual...
    7 KB (491 words) - 18:57, 12 March 2023
  • Thumbnail for Becklin–Neugebauer Object
    Becklin-Neugebauer Object as a Runaway B Star, Ejected 4000 Years Ago from the θ1 Orionis C System" (PDF). Astrophysical Journal. 607 (1): 47–50. arXiv:astro-ph/0401552...
    12 KB (1,281 words) - 09:36, 22 March 2024
  • Thumbnail for Pi1 Orionis
    Pi1 Orionis (π1 Ori, π1 Orionis) is a star in the equatorial constellation of Orion. It is faintly visible to the naked eye with an apparent visual magnitude...
    7 KB (476 words) - 00:52, 9 February 2023
  • Thumbnail for 32 Orionis
    32 Orionis is a triple star system in the equatorial constellation of Orion. It has the Bayer designation A Orionis, while 32 Orionis is the Flamsteed...
    10 KB (731 words) - 16:00, 26 February 2023
  • Omicron2 Orionis (ο2 Ori) is a solitary star in the constellation Orion. It has an apparent visual magnitude of 4.06, which is bright enough to be seen...
    6 KB (442 words) - 09:35, 14 August 2023
  • University Press. p. 170. ISBN 0-521-44921-9. Kaler, James B. "Saiph (Kappa Orionis)". Stars. University of Illinois. Archived from the original on 2012-02-02...
    103 KB (2,126 words) - 16:22, 3 May 2024
  • Thumbnail for Pi5 Orionis
    Pi5 Orionis (π5 Ori, π5 Orionis) is a binary star system in the constellation Orion. It has an apparent visual magnitude of 3.69, which is bright enough...
    11 KB (801 words) - 17:42, 11 December 2022
  • Thumbnail for Sh2-279
    nebula region is likely excited by the hot young star (YSO) called c Orionis, 42 Orionis or HD 37018 in NGC 1977, which appears as a 4.6 magnitude star some...
    9 KB (1,038 words) - 02:45, 29 November 2023
  • Thumbnail for Orders of magnitude (volume)
    Antares, retrieved 18 November 2009: "5.1e+02 solRad" VizeR page for S Orionis, retrieved 18 November 2009: "5.3e+02 solRad" Humphreys, Roberta M.; VY...
    36 KB (652 words) - 01:48, 21 May 2024
  • Thumbnail for Columba (constellation)
    contains the runaway star μ Columbae, which was probably expelled from the ι Orionis system. Exoplanet NGTS-1b and its star NGTS-1 are in Columba. Columba contains...
    10 KB (1,046 words) - 21:06, 30 April 2024
  • Ross 47 (redirect from V1352 Orionis)
    (Rv) 106.06±0.18 km/s Proper motion (μ) RA: +1,997.342 mas/yr Dec.: −1569.63 mas/yr Parallax (π) 172.6762 ± 0.0286 mas Distance 18.888 ± 0.003 ly (5.7912...
    7 KB (516 words) - 01:31, 3 December 2023