Position of R Lyr relative to Vega
Epoch J2000.0 Equinox J2000.0
|Right ascension||18h 55m 20.1013s|
|Declination||+43° 56' 45.919"|
|Apparent magnitude (V)||3.9 - 5.0
|Apparent magnitude (J)||-0.7|
|U−B color index||+1.41|
|B−V color index||+1.59|
|Radial velocity (Rv)||-28.3 km/s|
|Proper motion (μ)||RA: 19.94 mas/yr
Dec.: 80.60 mas/yr
|Parallax (π)||9.33 ± 0.52 mas|
|Distance||350 ± 20 ly
(107 ± 6 pc)
R Lyrae is a 4th magnitude star in the constellation Lyra, approximately 350 light years away from Earth. It is a red giant star of the spectral type M5III, meaning it has a surface temperature of under 3,500 kelvins. It is much larger and brighter, yet cooler, than our Sun. It is a semiregular pulsating star. In the near-infrared J band, it is brighter than Vega.
- "Simbad Query Result". Simbad. Retrieved October 16, 2007.
- "GCVS Query=R Lyr". General Catalogue of Variable Stars @ Sternberg Astronomical Institute, Moscow, Russia. Retrieved 2012-08-22.
- How to locate R Lyrae with binoculars
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