• 51 Pegasi (abbreviated 51 Peg), formally named Helvetios /hɛlˈviːʃiəs/, is a Sun-like star located 50.6 light-years (15.5 parsecs) from Earth in the constellation...
    20 KB (1,653 words) - 09:26, 14 April 2024
  • Thumbnail for 51 Pegasi b
    51 Pegasi b, officially named Dimidium /dɪˈmɪdiəm/, is an extrasolar planet approximately 50 light-years (15 parsecs) away in the constellation of Pegasus...
    16 KB (1,602 words) - 13:31, 21 February 2024
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    Square of Pegasus. Twelve star systems have been found to have exoplanets. 51 Pegasi was the first Sun-like star discovered to have an exoplanet companion...
    37 KB (3,920 words) - 04:40, 14 March 2024
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    Michel Mayor in 1995, he discovered 51 Pegasi b, the first extrasolar planet orbiting a Sun-like star, 51 Pegasi. For this discovery, he shared the 2019...
    21 KB (2,341 words) - 12:44, 30 August 2023
  • Thumbnail for SWEEPS-11
    The planet orbits at about 1.75 times closer to the star than 51 Pegasi b is to 51 Pegasi, taking only 1.8 days or 43 hours to orbit the star. SWEEPS-04...
    4 KB (205 words) - 03:08, 22 December 2023
  • Thumbnail for G-type main-sequence star
    examples of G-type main-sequence stars include Alpha Centauri, Tau Ceti, and 51 Pegasi. The term yellow dwarf is a misnomer, because G-type stars actually range...
    12 KB (1,133 words) - 10:07, 8 April 2024
  • Thumbnail for Michel Mayor
    Didier Queloz in 1995, he discovered 51 Pegasi b, the first extrasolar planet orbiting a sun-like star, 51 Pegasi. For this achievement, they were awarded...
    24 KB (2,171 words) - 15:22, 14 December 2023
  • 0″ 2.38 −4.19 672 K2Ibvar Enif, Enf, Enir, Al Anf, Fom, Fum al Faras, Os Pegasi β Peg β 53 217906 113881 23h 03m 46.33s +28° 04′ 56.8″ 2.44 −1.49 199 M2II-IIIvar...
    32 KB (162 words) - 23:38, 24 September 2023
  • Thumbnail for Hot Jupiter
    best-known hot Jupiters is 51 Pegasi b. Discovered in 1995, it was the first extrasolar planet found orbiting a Sun-like star. 51 Pegasi b has an orbital period...
    43 KB (5,036 words) - 19:45, 18 April 2024
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    masses of 0.02, 4.3, and 3.9 times that of Earth, by pulsar timing. When 51 Pegasi b, the first planet found around a star still undergoing fusion, was discovered...
    35 KB (3,361 words) - 16:40, 10 April 2024
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    hot Jupiters—giant planets that orbit close to their parent stars, like 51 Pegasi b—and extremely eccentric orbits, such as HD 20782 b. The discovery of...
    195 KB (20,575 words) - 05:22, 26 April 2024
  • opportunity, and human rights. It also funds a science fellowship known as the 51 Pegasi b Fellowship, and the American Mosaic Journalism Prize. It does not accept...
    15 KB (1,352 words) - 06:57, 19 February 2024
  • which lasted 70 years, for example some Maunder minimum candidates are 51 Pegasi, HD 4915 and HD 166620. Another activity cycle is the so-called flip-flop...
    8 KB (918 words) - 19:29, 19 April 2024
  • until 2002; while the PSR B1257+12 planets orbit a pulsar. This leaves 51 Pegasi b (discovered and confirmed 1995) as the first confirmed exoplanet around...
    41 KB (2,092 words) - 05:12, 19 April 2024
  • Thumbnail for Doppler spectroscopy
    identified 51 Pegasi b, a "Hot Jupiter" in the constellation Pegasus. Although planets had previously been detected orbiting pulsars, 51 Pegasi b was the...
    23 KB (2,324 words) - 12:01, 4 April 2024
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    Bibliography - Image. Nu Phoenicis at SIMBAD - Ids - Bibliography - Image. 51 Pegasi at SIMBAD - Ids - Bibliography - Image. "Solar Variability and Terrestrial...
    39 KB (3,437 words) - 20:26, 19 April 2024
  • Bibcode:1984SAAOC...8...59C Poppenhäger, K.; et al. (December 2009), "51 Pegasi – a planet-bearing Maunder minimum candidate", Astronomy and Astrophysics...
    31 KB (1,569 words) - 11:51, 19 April 2024
  • Thumbnail for List of largest exoplanets
    "Evidence for a spectroscopic direct detection of reflected light from 51 Pegasi b". Astronomy & Astrophysics. 576: A134. arXiv:1504.05962. Bibcode:2015A&A...
    63 KB (5,342 words) - 19:16, 25 April 2024
  • Thumbnail for Discoveries of exoplanets
    when a giant planet was found in a four-day orbit around the nearby star 51 Pegasi. Some exoplanets have been imaged directly by telescopes, but the vast...
    83 KB (8,219 words) - 08:44, 24 April 2024
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    made in 1995, when a giant planet, 51 Pegasi b, was found in a four-day orbit around the nearby G-type star 51 Pegasi. The frequency of detections has increased...
    47 KB (5,449 words) - 02:42, 6 January 2024
  • explained in terms of slow changes in the pulsar's dispersion measure". 51 Pegasi Gamma Cephei Ab List of exoplanets discovered before 2000 - Draugr, Poltergeist...
    19 KB (1,786 words) - 20:58, 31 March 2024
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    (2015). "Evidence for a spectroscopic direct detection of reflected light from 51 Peg b". Astronomy & Astrophysics. 576 (2015): A134. arXiv:1504.05962. Bibcode:2015A&A...
    12 KB (1,246 words) - 11:11, 13 April 2024
  • Thumbnail for 70 Virginis b
    Habitable Zone despite the presence of the nearby eccentric giant planet. 51 Pegasi b Tau Boötis b 55 Cancri b 47 Ursae Majoris b Upsilon Andromedae b List...
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  • Thumbnail for PSR B1620−26 b
    "Zarmina's Planet"; and HD 209458 b, occasionally referred to as "Osiris." 51 Pegasi b PSR 1257+12 Pulsar planet List of exoplanets discovered before 2000...
    14 KB (1,696 words) - 15:37, 7 March 2024
  • Thumbnail for Methods of detecting exoplanets
    international team of astronomers. The astronomers studied light from 51 Pegasi b – the first exoplanet discovered orbiting a main-sequence star (a Sunlike...
    131 KB (14,970 words) - 18:52, 20 April 2024
  • Thumbnail for Photometry (astronomy)
    example, apparent magnitude in the UBV system for the solar-like star 51 Pegasi is 5.46V, 6.16B or 6.39U, corresponding to magnitudes observed through...
    29 KB (3,176 words) - 21:24, 9 April 2024
  • Latin genitive of the constellation the star lies in. Examples include 51 Pegasi and 61 Cygni. About 2,500 stars are catalogued. They are commonly used...
    50 KB (6,481 words) - 17:19, 5 April 2024
  • Thumbnail for Exoplanet
    when a giant planet was found in a four-day orbit around the nearby star 51 Pegasi. Some exoplanets have been imaged directly by telescopes, but the vast...
    146 KB (15,828 words) - 18:56, 20 April 2024
  • smaller, cooler and less massive, luminous, and metallic than the Sun and 51 Pegasi. An infrared excess has been detected around the primary, most likely...
    8 KB (401 words) - 07:03, 27 March 2022
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    October 6 – Michel Mayor and Didier Queloz announce the discovery of 51 Pegasi b, the first confirmed extrasolar planet orbiting an ordinary main-sequence...
    71 KB (5,958 words) - 08:04, 27 April 2024