RX Leporis

RX Leporis
RX Lep
Red giant RX Lep is 4 degrees south of Rigel
Observation data
Epoch J2000      Equinox ICRS
Constellation Lepus
Right ascension 05h 11m 22.87s
Declination −11° 50′ 56.7″
Apparent magnitude (V) 5.0–7.4
Characteristics
Spectral type M6.2III
Variable type Semi-regular pulsating (SRB)
Astrometry
Radial velocity (Rv)46.1 km/s
Parallax (π)6.71±0.44 mas
Distance490 ± 30 ly
(149 ± 10 pc)
Details
Mass1–4 M☉
Radius100–200 R☉
Luminosity1500–4500 L☉
Temperature3300 K
Other designations
HD 33664, HR 1693, HIP 24169, BD−12°1092, SAO 150206
Database references
SIMBADdata

RX Leporis (RX Lep) is a star in the constellation of Lepus. It is a red giant and is a semi-regular pulsating star.

A visual band light curve for RX Leporis. The main plot shows the long-term brightness variation, and the inset plot shows the short-term variation. Adapted from Percy et al. (2001)

It has an apparent magnitude that varies from about 5.0 to 7.4. At its brightest it is dimly visible to the naked eye, and at its dimmest can be located with binoculars. In the sky it is about 4 degrees south of Rigel and is located next to Iota Leporis.

See also

References

  1. 1 2 3 4 5 6 7 "RX Leporis". SIMBAD Astronomical Database. Retrieved 2012-08-31.
  2. 1 2 3 4 "GCVS Query=RX Lep". General Catalogue of Variable Stars @ Sternberg Astronomical Institute, Moscow, Russia. Retrieved 2012-08-31.
  3. 1 2 "RX Leporis". AAVSO: Variable Star Plotter (VSP). Retrieved 2012-08-31.{{cite web}}: CS1 maint: deprecated archival service (link)
  4. 1 2 3 4 Jim Kaler. "IOTA LEP (Iota Leporis) and RX Lep". University of Illinois. Retrieved 2012-08-31.
  5. ↑ Percy, John R.; Wilson, Joseph B.; Henry, Gregory W. (August 2001). "Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves and Periods". Publications of the Astronomical Society of the Pacific. 113 (786): 983–996. Bibcode:2001PASP..113..983P. doi:10.1086/322153. S2CID 14609175.