TOI-1452
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Draco_(constellation)
Right ascension 19h 20m 41.73s[1]
Declination 73° 11′ 43.5″[1]
Characteristics
Spectral type M4-4.5Ve /M3.7Ve[2][3]

TOI-1452 is a star system located in the constellation of Draco. It is a binary pair of dim red dwarf stars separated by only 96 astronomical units (AU). A notable feature of this system is the presence of an exoplanet around one of the stars, designated as TOI-1452 b.[4] The secondary star is often distinguished from the first with the name "TIC 420112587".[5]

Properties

TOI-1452 is 99 light-years away from Earth.[2] It is two M4 dwarf stars that were observed by TESS as a priority, since they are on the cool dwarf list, a list of high-priority orange-red and red dwarf stars, that was uploaded to TESS. It is a flare star, with a flare observed by TESS where the star brightened by 5%.[5]

Exoplanet

In 2022, an exoplanet was detected orbiting one of the stars every 11 days. The planet, named TOI-1452b, is a super-Earth and potential ocean world with a mass 4.8 times that of Earth and a radius 1.67 times that of Earth.[4][5]

Observation

The star system is too dim to be seen with small telescopes, with an apparent magnitude of +14.4.[2]

References

  1. 1 2 "SAO Star Catalog". HEASARC. NASA's High Energy Astrophysics Science Archive Research Center. Retrieved 2023-09-14.
  2. 1 2 3 "TOI-1452 Star Information". Stellar Catalog. Retrieved 2023-09-14.
  3. ↑
  4. 1 2 "Discovery of Ocean World with the CFHT". Canada-France-Hawaii Telescope. Retrieved 2023-09-14.
  5. 1 2 3 Cadieux, Charles; Doyon, René; Plotnykov, Mykhaylo; Hébrard, Guillaume; Jahandar, Farbod; Artigau, Étienne; Valencia, Diana; Cook, Neil J.; Martioli, Eder; Vandal, Thomas; Donati, Jean-François; Cloutier, Ryan; Narita, Norio; Fukui, Akihiko; Hirano, Teruyuki (2022-08-12). "TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf". The Astronomical Journal. 164 (3): 96. arXiv:2208.06333. doi:10.3847/1538-3881/ac7cea. ISSN 0004-6256.
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