NOTABLE STARS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site Hind’s Crimson Star (R Leporis) Photo: Adam Block/NOAO/AURA/NSF A long-period variable in the constellation Lepus, easily seen in binoculars when at maximum brightness. It was discovered by John Hind who described it as “… resembling a blood drop on the background of the sky.” R Leporis is the reddest reasonably bright star in the sky. It's wide variability comes about because the star produces enormous amounts of carbon which, when dredged up through convection, makes its way to the outer layers of the atmosphere. Carbon particles, or soot, concentrate to create an outer shell that dramatically dims the star. This dimming gives R Lep its extremely red appearence. At some point much of the carbon is blown away from the star and the process begins again. Visual magnitude 7.7 average; 6th to 10th range Spectral type C6IIe Period about 430 days Position R.A. 04h 59m 36.5s, Dec. -14° 48' 21" Related categories    • NOTABLE STARS    • VARIABLE STARS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP