CoRoT-1

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Yellow dwarf star in the constellation Monoceros

title: "CoRoT-1" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["monoceros", "g-type-main-sequence-stars", "planetary-transit-variables", "planetary-systems-with-one-confirmed-planet"] description: "Yellow dwarf star in the constellation Monoceros" topic_path: "science/astronomy" source: "https://en.wikipedia.org/wiki/CoRoT-1" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Yellow dwarf star in the constellation Monoceros ::

| name = CoRoT-1 | image = [[File:CoRoT-1.jpg|250px]] | caption = An artist's depiction of CoRoT-1 and its "hot Jupiter" exoplanet | epoch = J2000.0 | constell = Monoceros | appmag_v = 13.6 | ra = | dec = | type = main sequence | class = G0V | appmag_1_passband = V | appmag_1 = ~13.6 | appmag_2_passband = I | appmag_2 = 12.88 ±0.04 | appmag_3_passband = J | appmag_3 = 12.462 ±0.029 | appmag_4_passband = H | appmag_4 = 12.218 ±0.026 | appmag_5_passband = K | appmag_5 = 12.149 ±0.027 | variable = Pulsating variable | radial_v = | prop_mo_ra = | prop_mo_dec = | pm_footnote = | parallax = 1.3000 | p_error = 0.0167 | parallax_footnote = | absmag_v = | mass = 1.3 | luminosity = 2.4 | temperature = 6,355 | radius = 1.3 | gravity = 4.32 | metal = 0.03 | rotational_velocity = 4.70 | age = 1.06.5 | names = GSC 04804-02268, DENIS-P J064819.1-030607, 2MASS J06481917-0306077, USNO-B1.0 0868-00112004, CoRoT-Exo-1, GSC2 S1002112279, UCAC2 30655657 | EPE = CoRoT-1 | Simbad = GSC04804-02268 CoRoT-1 is a yellow dwarf main sequence star similar to the Sun. The star is located approximately 2,510 light-years away in the constellation of Monoceros. The apparent magnitude of this star is 13.6, which means it is not visible to the naked eye; however, it can be seen through a medium-sized amateur telescope on a clear, dark night. The first exoplanet discovered in the course of the CoRoT mission orbits this star; it is considered to be a "hot Jupiter", and is approximately as massive as the planet Jupiter itself.

Nomenclature

The designation "CoRoT" is a result of its observation by the French-directed Convection, Rotation, and Planetary Transits mission, which was launched in late December 2006 with one goal involving the search for exoplanets by measuring the varying brightness of candidate stars when transited by any present exoplanets; CoRoT's second goal pertains to the study of the interiors of stars, which is done by analyzing the characteristics and behavior of light released from the star. The numerical designation was assigned because the first exoplanet discovered by the CoRoT telescope was found in orbit of this star. CoRoT-1 does not have a common or colloquial name like that of Sirius or Procyon.

Characteristics

CoRoT-1 is a G-type star, meaning the light it emits is similar to that of the Sun's. Likewise, the star is of nearly the same temperature and mass of the Sun. At an apparent magnitude of approximately +13.6, doubly dimmer than the dimmest star visible with the naked eye, CoRoT-1 cannot be seen from Earth without magnification apparatus.

A search for a binary companion star using Lucky imaging observations with the Danish 1.54 m telescope at La Silla Observatory in Chile did not find any candidate companion stars.

Variability

When CoRoT-1 was observed by the CoRoT telescope over a continuous period of sixty days since the preliminary results release on 23 May 2007, the star's light exhibited patterns identical to pulsating variable stars with characteristics similar to that of the Sun.

Planetary system

::figure[src="https://upload.wikimedia.org/wikipedia/commons/8/8a/Planetary_transit.svg" caption="transit method]], which can be documented when planets eclipse their star in respect to Earth's position, was used to discover [[CoRoT-1b]]."] ::

This star is home to the transiting exoplanet CoRot-1b, the first exoplanet discovered by the CoRoT Mission spacecraft. The planet, which is similar to that of the planet Jupiter's in terms of mass, orbits approximately .02 AU away from its parent star. In comparison, the planet Mercury orbits at approximately .387 AU from the Sun. CoRoT-1b is presumed to be tidally locked to its star.

The planet was the first to be sighted optically rather than through infrared. Unlike other "hot Jupiters," this occurrence seems to imply that the heat transfer between the hemisphere of the planet facing the star and the hemisphere facing away is not significant.

| table_ref = | exoplanet = b | mass = | period = | semimajor = | eccentricity = {{val|0.036|p= | inclination = | radius =

References

References

  1. {{cite constellation. CoRoT-1
  2. Andrea Thompson. (2009-05-27). "Exoplanet Phases Seen in Optical Light".
  3. (3 May 2007). "COROT discovers its first exoplanet and catches scientists by surprise". [[European Space Agency]].
  4. (2009). "COROT Home Page". Centre National D'Études Spatiales (CNES).
  5. (2009-05-29). "The changing phases of extrasolar planet CoRoT-1b". Nature.
  6. (2007). "Corot detecta un nuevo planeta más grande que Júpiter". PortalCiencia.com.
  7. (2008). "Stellar Magnitudes". [[University of Tennessee]].
  8. (23 May 2007). "Success of the First CoRoT Satellite Observation: First Exoplanet and First Stellar Oscillations". [[Centre National de la Recherche Scientifique]].
  9. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal.
  10. (2003). "Mercury Statistics". University Corporation for Atmospheric Research (UCAR).
  11. (2021). "The evolution of lithium in FGK dwarf stars. The lithium-rotation connection and the Li desert". Astronomy and Astrophysics.
  12. (2008). "Transiting exoplanets from the CoRoT space mission I. CoRoT-Exo-1b: a low-density short-period planet around a G0V star". Astronomy and Astrophysics.
  13. (2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics.
  14. (2016). "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP)". Astronomy and Astrophysics.
  15. {{Cite Gaia DR3. 3105507886130792448
  16. (2012). "Extrasolar Planet Transits Observed at Kitt Peak National Observatory". Publications of the Astronomical Society of the Pacific.

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monocerosg-type-main-sequence-starsplanetary-transit-variablesplanetary-systems-with-one-confirmed-planet