Epsilon Leporis

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ε Leporis
Location of ε Leporis (circled)
Observation data
J2000.0
Constellation Lepus
Right ascension 05h 05m 27.66537s[1]
Declination −22° 22′ 15.7239″[1]
Apparent magnitude (V) +3.166[2]
Characteristics
Spectral type K4 III[3]
U−B color index +1.783[2]
B−V color index +1.478[2]
Distance
209 ± 1 ly
(64.1 ± 0.4 pc)
Absolute magnitude (MV)−1.02±0.10[6]
Details
Gyr
HR 1654, SAO 170051[8]
Database references
SIMBADdata

Epsilon Leporis, Latinized from ε Leporis, is a third-magnitude

apparent visual magnitude of +3.166[2] places it third in brightness among the stars in this constellation. Based upon parallax measurements, it is located at a distance of around 213 light-years (65 parsecs) from Earth.[1]

This is an

K-type star.[9] In terms of its composition, this star shows a similar abundance of elements other than hydrogen and helium to the Sun.[6]

The envelope of this star is undergoing oscillations that show up as changes in the star's radial velocity. Over long durations these follow a linear trend, in combination with shorter period oscillations occurring over a few days. These oscillations are unlikely to be the result of rotational module as that would imply a high rotation rate, which would display itself through strong X-ray emissions. Instead, they may be the result of solar-like and Mira-like oscillations.[10]

References

  1. ^
    S2CID 18759600
    .
  2. ^
    Bibcode:1966PDAUC...1....1G
  3. ^
    Bibcode:1988mcts.book.....H
    .
  4. Bibcode:1999VeARI..35....1W
  5. doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR
    .
  6. ^
    S2CID 9341088
    .
  7. ^
    Bibcode:2006ESASP.624E.118D{{citation}}: CS1 maint: location missing publisher (link
    )
  8. ^ "eps Lep". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-10-29.
  9. Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original
    on 2012-03-18, retrieved 2012-01-16
  10. Bibcode:2006MmSAI..77..510S
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