Astronomy:RX Leporis

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Short description: Star in the constellation Lepus
RX Leporis
RX Lep
Red giant RX Lep is 4 degrees south of Rigel
Observation data
Equinox J2000.0]] (ICRS)
Constellation Lepus
Right ascension  05h 11m 22.87s[1]
Declination −11° 50′ 56.72″
Apparent magnitude (V) 5–7.4[2][3]
Characteristics
Spectral type M6.2III[1][2][3]
Variable type Semi-regular pulsating (SRB)[1][2]
Astrometry
Radial velocity (Rv)46.1[1] km/s
Parallax (π)6.71 ± 0.44[1] mas
Distance490 ± 30 ly
(149 ± 10 pc)
Details
Mass1–4[4] M
Radius100–200[4] R
Luminosity1500–4500[4] L
Temperature3300[4] K
Other designations
HD 33664, HR 1693, HIP 24169, BD–12° 1092, SAO 150206[1]
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)[5]

It has an apparent magnitude that varies from about 5 to 7.4.[2] 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. 1.0 1.1 1.2 1.3 1.4 1.5 "RX Leporis". SIMBAD Astronomical Database. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=RX+Lep. Retrieved 2012-08-31. 
  2. 2.0 2.1 2.2 2.3 "GCVS Query=RX Lep". General Catalogue of Variable Stars @ Sternberg Astronomical Institute, Moscow, Russia. http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=RX+Lep. Retrieved 2012-08-31. 
  3. 3.0 3.1 "RX Leporis". AAVSO: Variable Star Plotter (VSP). http://ftp.aavso.org/vsp. Retrieved 2012-08-31. 
  4. 4.0 4.1 4.2 4.3 Jim Kaler. "IOTA LEP (Iota Leporis) and RX Lep". University of Illinois. http://stars.astro.illinois.edu/sow/iotalep.html. 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. doi:10.1086/322153. Bibcode2001PASP..113..983P. https://ui.adsabs.harvard.edu/abs/2001PASP..113..983P. Retrieved 20 January 2022. 

External links