58 Eridani

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58 Eridani
Observation data
Epoch J2000      Equinox J2000
Constellation Eridanus
Right ascension 04h 47m 36.29148s[1]
Declination –16° 56′ 04.0413″[1]
Apparent magnitude (V) 5.49[2]
Characteristics
Spectral type G1.5 V CH-0.5[3]
U−B color index +0.13[2]
B−V color index +0.64[2]
Variable type BY Dra
Astrometry
Radial velocity (Rv) 23.00 ± 0.56[4] km/s
Proper motion (μ) RA: 130.04 ± 0.37[1] mas/yr
Dec.: 169.27 ± 0.28[1] mas/yr
Parallax (π) 75.32 ± 0.36[1] mas
Distance 43.3 ± 0.2 ly
(13.28 ± 0.06 pc)
Details
Mass 1.053 ± 0.007[5] M☉
Temperature 5,820 ± 5.7[6] K
Metallicity [Fe/H] 0.00[7] dex
Rotation 7.6 days[7]
Age 600[8] Myr
Other designations
58 Eri, BD-17 954, GCTP 1070.00, Gl 177, HD 30495, HIP 22263, HR 1532, LTT 2088, SAO 149888.

58 Eridani is a main-sequence star in the constellation Eridanus. It is considered a solar analogue,[9] which means it has similar physical properties to the Sun. The star has a relatively high proper motion across the sky, and it is located about 43 light years distant. It is a probable member of the IC 2391 moving group of stars that share a common motion through space.[7]

The X-ray emissions from this star's corona indicate an age of less than a billion (109) years,[10] compared to 4.6 billion for the Sun, so it is still relatively young for a star of its mass. Starspot activity has also been detected, which varies from year to year.

A circumstellar disc of dust particles has been detected in orbit around 58 Eridani.[11]

See also

References

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External links

  • Lua error in package.lua at line 80: module 'strict' not found.
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