CosmoCatalog

40 Eridani

(Triple star system)
Other designations of this star
DY Eri
  • BD-07°781 C
  • LHS 25
  • LTT 1909
  • omi02 Eri C
  • BD-07° 781
  • G 160-060
  • HD 26976
  • LHS 24
  • LTT 1908
  • SAO 131065
  • omi02 Eri B
  • Keid
  • Omicron² Eridani
  • 40 Eri
  • Gliese 166
  • HD 26965
  • HIP 19849
  • HR 1325
  • LHS 23
  • LTT 1907
  • SAO 131063
  • BD-07° 780
  • omi02 Eri
  • Gaia EDR3 3195919528989223040
Spectral classK0V

Located at a distance of 16 light years from the Sun, this stellar system is composed of three stars and is known to host at least one exoplanet.

LOCATION

Discover the celestial coordinates and distances that help us locate and understand this star's position in space.

When looking at celestial coordinates, you'll see three main position types: Right Ascension (RA) measures east-west position like longitude, Declination (Dec) measures north-south position like latitude, and Parallax helps determine a star's distance from Earth. Together, these coordinates help us pinpoint exactly where objects are in our night sky!

Right ascension
4h 15m 13.911s
Declination
-7° 40' 5.08''
Parallax
199.608
Sun Distance
16.33982ly

BASIC CHARACTERISTICS

Explore the fundamental properties that define this star's physical nature and evolution.

A star's basic characteristics - its mass, size, temperature, age, and luminosity - are all interconnected. These properties determine the star's life cycle and how it appears to us from Earth. Understanding these relationships helps astronomers classify stars and predict their future evolution.

Mass
84M☉
Size
81R☉
Luminosity
0.457L☉
Age
6.9 billions
1.5sun
Temperature
5202K
0.9T☉

PHOTOMETRY

Understand how bright this star appears from Earth and its true luminosity in space.

Apparent magnitude is how bright a star looks from Earth, while absolute magnitude is its true brightness from a standard distance of 10 parsecs. The lower the number, the brighter the star - and negative numbers mean extremely bright objects!

Apparent magnitude (V)
4.4
Absolute magnitude (V)
5.9

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