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GJ 1151

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Imaginary diagram of GJ 1151 and GJ 1151 b.

GJ 1151 is a red dwarf star of spectral type M4.5V, located in constellation Ursa Major at 26.7 light-years from Earth.

In 2020, astronomers announced the discovery of radio emissions from the star which are consistent with a planet, approximately the size of Earth, rotating in a 1-5 day long orbit.

Distance

In 1991, Gliese et al gave parallax (πp) as 121.8 ± 3.0 mas. In 1995, van Altena gave parallax as 122.1 ± 2.9 mas. In 2014, Dittman et al gave parallax as 130.60 ± 3.60 mas.

See also

References

  1. ^ VizieR, Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
  2. Vedantham, H. K.; Callingham, J. R.; Shimwell, T. W.; Tasse, C.; Pope, B. J. S.; Bedell, M.; Snellen, I.; Best, P.; Hardcastle, M. J.; Haverkorn, M.; Mechev, A. (2020-02-17). "Coherent radio emission from a quiescent red dwarf indicative of star–planet interaction". Nature Astronomy: 1–7. doi:10.1038/s41550-020-1011-9. ISSN 2397-3366.
  3. Pope, Benjamin J.S.; et al. (17 February 2020). "No Massive Companion to the Coherent Radio-emitting M Dwarf GJ 1151". The Astrophysical Journal Letters. 890 (2). doi:10.3847/2041-8213/ab5b99. Retrieved 1 March 2020.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  4. Starr, Michelle (29 February 2020). "For The First Time, Astronomers Have Detected an Exoplanet Using Radio Waves". ScienceAlert.com. Retrieved 1 March 2020.
  5. "Radio telescope measures aurorae in distant planetary system". UPI. Retrieved 2020-02-26.
  6. Redd, Nola Taylor. "New Exoplanet Search Strategy Claims First Discovery". Quanta Magazine. Retrieved 2020-02-26.
  7. Clark, Stuart. "An exoplanet is generating radio waves from its red dwarf sun". New Scientist. Retrieved 2020-02-26.
  8. Gliese, W.; Jahreiß, H. (1991). "GI 338". Preliminary Version of the Third Catalogue of Nearby Stars.
  9. Dittmann, Jason A.; Irwin, Jonathan M.; Charbonneau, David; Berta-Thompson, Zachory K. (2014). "TRIGONOMETRIC PARALLAXES FOR 1507 NEARBY MID-TO-LATE M DWARFS". The Astrophysical Journal. 784 (2): 156. arXiv:1312.3241. Bibcode:2014ApJ...784..156D. doi:10.1088/0004-637X/784/2/156. ISSN 0004-637X.
Known celestial objects within 20 light-years
Primary member type
Celestial objects by systems. Secondary members are listed in small print.
    0–10 ly →
Main-sequence
stars
A-type
G-type
M-type
(red dwarfs)
Brown dwarfs
L-type
  • Luhman 16 (6.5029±0.0011 ly)
  • T-type brown dwarf B
Sub-brown dwarfs
and rogue planets
Y-type
← 10–15 ly →
Subgiant stars
F-type
Main-sequence
stars
G-type
  • Tau Ceti (11.9118±0.0074 ly)
  • 4 (8?) planets: (b), (c), (d), e, f, g, h, (i)
K-type
M-type
(red dwarfs)
Degenerate
stars
White dwarfs
Brown dwarfs
T-type
← 15–20 ly    
Subgiant stars
G-type
Main-sequence
stars
A-type
G-type
K-type
M-type
(red dwarfs)
Degenerate
stars
White dwarfs
Brown dwarfs
L-type
T-type
Y-type
Sub-brown dwarfs
and rogue planets
Y-type
Italic are systems without known trigonometric parallax.
Constellation of Ursa Major
Stars
Bayer
Flamsteed
Variable
HR
HD
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Exoplanets
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