• Thumbnail for Lambda Eridani
    Lambda Eridani (λ Eri) is a star in the constellation Eridanus. It is visible to the naked eye on a dark night with an apparent visual magnitude of 4.27...
    11 KB (902 words) - 14:17, 2 December 2023
  • A Lambda Eridani Variable is a class of Be stars that show small amplitude variations of a few hundredths of a magnitude. The variations are highly regular...
    4 KB (370 words) - 17:07, 8 March 2024
  • Thumbnail for Beta Eridani
    name of the star association consisting of this star along with Lambda Eridani, Psi Eridani and Tau Orionis. According to a NASA catalogue of stars, Al Kursiyy...
    14 KB (1,138 words) - 02:28, 18 September 2023
  • Thumbnail for HR 2501
    HR 2501 (category Lambda Eridani variables)
    HR 2501, also known as HD 49131 and HP Canis Majoris, is a star about 2,000 light years from the Earth, in the constellation Canis Major. It is a 5th magnitude...
    12 KB (1,071 words) - 06:44, 15 January 2024
  • Thumbnail for Be star
    of these are thought to be pulsating stars and are sometimes called Lambda Eridani variables. Porter, John M.; Rivinius, Thomas (2003). "Classical Be Stars"...
    6 KB (716 words) - 20:46, 4 December 2023
  • Thumbnail for Alpha Arae
    Alpha Arae (category Lambda Eridani variables)
    Alpha Arae, Latinized from α Arae, is the second brightest star in the southern constellation of Ara. With an average apparent visual magnitude 2.93, it...
    15 KB (1,347 words) - 14:43, 12 August 2023
  • Thumbnail for Chi Ophiuchi
    Chi Ophiuchi (category Lambda Eridani variables)
    Chi Ophiuchi, Latinized from χ Ophiuchi, is a variable star in the equatorial constellation of Ophiuchus. It has a blue-white hue and is faintly visible...
    13 KB (1,040 words) - 06:41, 15 January 2024
  • Thumbnail for Psi2 Aquarii
    Psi2 Aquarii (category Lambda Eridani variables)
    an effective temperature of 15,212 K in its outer envelope. It is a λ Eridani variable, or periodic Be star, with a pulsation cycle lasting 1.073 days...
    7 KB (468 words) - 01:03, 13 August 2023
  • Thumbnail for Eta Centauri
    Eta Centauri (category Lambda Eridani variables)
    Index lists Eta Centauri as both a Gamma Cassiopeiae variable and a Lambda Eridani variable with variations caused by its rotation and pulsations. Eta...
    12 KB (882 words) - 15:49, 24 October 2023
  • Persei) Yellow hypergiant Eruptive binary Double periodic FS Canis Majoris RS Canum Venaticorum Other Flare Gamma Cassiopeiae Lambda Eridani Wolf–Rayet...
    8 KB (881 words) - 18:48, 8 February 2024
  • Thumbnail for Omicron Puppis
    Omicron Puppis (category Lambda Eridani variables)
    43 - 4.46. The International Variable Star Index classifies it as a Lambda Eridani variable. The correct Bayer designation for ο Puppis has been debated...
    12 KB (1,001 words) - 08:20, 13 August 2023
  • Thumbnail for Orion (constellation)
    Nebula is the thumb; the Belt of Orion is the wrist; and the star Beta Eridani is the pinky finger. The seven primary stars of Orion make up the Polynesian...
    46 KB (5,178 words) - 15:15, 6 June 2024
  • Kappa Ursae Majoris Binary star system 3.559 Lambda Geminorum Triple star system 3.56 Upsilon4 Eridani Binary star system 3.56 Delta Pavonis Star 3.56...
    37 KB (1,546 words) - 21:08, 17 March 2024
  • Thumbnail for Lambda Crucis
    currently thought more likely to be a different type of variable, possibly a λ Eridani variable or rotating ellipsoidal variable. This object is a B-type main-sequence...
    10 KB (760 words) - 12:46, 14 May 2023
  • Thumbnail for List of Arabic star names
    Epsilon Sagittarii Delta Sagittarii Lambda Sagittarii Keid al-Qaiḍ the (broken egg) Shells القيض Omicron² Eridani Kitalpha Qiṭʿat al-Faras Part of the...
    35 KB (572 words) - 04:47, 2 July 2024
  • Thumbnail for K-type main-sequence star
    have remain unchanged over the years, are: Sigma Draconis (K0 V) Epsilon Eridani (K2 V) 61 Cygni A (K5 V) Other primary MK standard stars include: 70 Ophiuchi...
    13 KB (1,422 words) - 02:42, 2 April 2024
  • Thumbnail for White dwarf
    binary system of the white dwarf 40 Eridani B and the main sequence red dwarf 40 Eridani C. The pair 40 Eridani B/C was discovered by William Herschel...
    163 KB (18,594 words) - 16:17, 19 June 2024
  • Thumbnail for Boötes
    2012. Popper, D. M. (1983). "The F-type eclipsing binaries ZZ Bootis, CW Eridani, and BK Pegasi". Astronomical Journal. 88: 1242–56. Bibcode:1983AJ.......
    73 KB (8,385 words) - 12:58, 20 March 2024
  • Thumbnail for Gravitational redshift
    done by Popper in 1954, measuring a 21 km/s gravitational redshift of 40 Eridani B. The redshift of Sirius B was finally measured by Greenstein et al. in...
    43 KB (5,976 words) - 12:35, 25 June 2024
  • absolutno by Karel Čapek. /ˈapsolutno/ Eridanus θ1 Eridani A Acamar /ˈækəmɑːr/ Eridanus α Eridani A Achernar The name was originally Arabic: آخر النهر...
    103 KB (2,126 words) - 16:22, 3 May 2024
  • Thumbnail for G-type main-sequence star
    classifiers, but often-used examples include 70 Virginis (G4V) and 82 Eridani (G6V). There are not yet any generally agreed upon G7V and G9V standards...
    12 KB (1,141 words) - 12:08, 3 July 2024
  • Thumbnail for List of nearest stars
    Sebastian; Paulson, Diane B. (November 2006), "The extrasolar planet e Eridani b – orbit and mass", The Astronomical Journal, 132 (5): 2206–2218, arXiv:astro-ph/0610247...
    116 KB (5,396 words) - 01:22, 9 July 2024
  • This definition includes brown dwarfs and former stars similar to EF Eridani B, and can also include objects of planetary mass, regardless of their...
    8 KB (940 words) - 14:14, 16 May 2024
  • (82 G.) Eridani (19.7045±0.0093 ly) 3 (6?) planets: b, c?, d (c), e?, f?, g?, d K-type Groombridge 1618 (15.8857±0.0017 ly) Omicron2 (40) Eridani (16.3330±0...
    38 KB (1,542 words) - 12:01, 13 July 2024
  • Draconis), Deneb (Alpha Cygni), Propus (Eta Geminorum), Heka (Lambda Orionis), Rana (Delta Eridani), Regor (Gamma Velorum) Opteron CPUs: Barcelona, Shanghai...
    27 KB (3,484 words) - 09:27, 7 May 2024
  • 0074 ly) 4 (8?) planets: (b), (c), (d), e, f, g, h, (i) K-type Epsilon Eridani (Ran) (10.4749±0.0037 ly) 1 (2?) planets: b (Ægir), c? 61 Cygni (11.4039±0...
    5 KB (518 words) - 03:59, 28 June 2024
  • Thumbnail for Outline of astronomy
    Stellar black hole Compact star Quark star Exotic star Stellar core: EF Eridani Failed and theoretical stars Substellar object Brown dwarf Sub-brown dwarf...
    42 KB (3,397 words) - 07:25, 19 May 2024
  • nearest M-type red giant, and the 25th brightest star in the night sky. Beta Eridani (Cursa) 90±0.9 A3 III var or A3 IV 2.4 2 2.796 Kappa Ophiuchi 91.5±0.5...
    45 KB (3,615 words) - 16:22, 31 May 2024
  • Thumbnail for Stellar classification
    K0V – Sigma Draconis K0III – Pollux K0III – Epsilon Cygni K2V – Epsilon Eridani K2III – Kappa Ophiuchi K3III – Rho Boötis K5V – 61 Cygni A K5III – Gamma...
    104 KB (11,345 words) - 03:16, 12 July 2024
  • text Star Name Constellation Apparent Magnitude (mv) Class Notes 20 Eridani (EG Eridani) Eridanus 5.23 B8/9 III α2 CVn variable 30 Capricorni Capricornus...
    4 KB (236 words) - 20:33, 27 August 2023