HD 23079
Last updated
HD 23079, also named Tupi, is an F-type main-sequence star in the southern constellation Reticulum. With an apparent visual magnitude of 7.12, it is visible through binoculars but not to the naked eye. The star is slightly hotter and more massive than the Sun, with a lower metallicity.
Quick Facts
- Constellation
- Reticulum
- Apparent magnitude
- 7.12
- Distance
- 109 light-years
- Radial velocity
- +0.65 km/s
- Stellar classification
- F9.5V
- Projected rotational velocity
- 1.3 km/s
Facts from the source article.
Planetary system
In October 2001, a giant planet was announced orbiting HD 23079, detected via the radial velocity method. Its orbit resembles that of Mars, and its presence would strongly affect any Earth-like planet in the habitable zone. A second planet, HD 23079 c, a sub-Neptune mass object with a 5.75-day orbital period, was announced in 2025.
Did You Know?
- The star and its planet b were named Tupi and Guarani, respectively, in the 2019 NameExoWorlds campaign for Brazil.
- Any Earth-like planet in the system would have to exist as an exomoon or Trojan planet of HD 23079 b.
More in Planetary Systems with Two Confirmed Planets
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: HD 23079 (CC BY-SA 4.0).
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced