In astronomy, a semiregular variable star, a type of variable star, is a giant or supergiant of intermediate and late (cooler) spectral type showing considerable...

of Variable Stars, both Mira variables and semiregular variables, particularly those of type SRa, were often considered as long period variables. At...

This is a list of semiregular variable stars. Variability ranges are taken from the General Catalogue of Variable Stars (GCVS) where these are visual...

is the brightest star in the constellation, and the semiregular variable star Y Lyncis is a target for amateur astronomers. Six star systems have been...

giant star, BM Scorpii, which contrasts sharply with its blue neighbours in photographs. BM Scorpii, is classed as a semiregular variable star, its brightness...

defined by ISO 217 Satanic ritual abuse SRa or SRA, a type of semiregular variable star Senior Airman (SrA), a US Air Force rank Septic Reserve Area,...

Cephei is also known as Herschel's Garnet Star due to its deep red colour. It is a semiregular variable star with a minimum magnitude of 5.1 and a maximum...

Variable Stars Star portal Lists of astronomical objects Lists of stars List of semiregular variable stars List of stars that have unusual dimming periods...

V-band, and distances are from the Gaia DR2 star catalogue. Long period variable Semiregular variable star Mattei, Janet Akyuz (1997). "1997JAVSO..25....

A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes systematically with time. This variation may be caused...

M-type red supergiant star nearing the end of its life. It is the second brightest star in Orion, and is a semiregular variable star. It serves as the "right...

reddish, semiregular variable star whose apparent magnitude, varying between +0.0 and +1.6, has the widest range displayed by any first-magnitude star. Betelgeuse...

Mira variable star that ranges in magnitude from a minimum of 15.2 to a maximum of 7.2 with a period of 371.1 days. T Arietis is a semiregular variable star...

AR Cephei (AR Cep) is a variable star in the constellation Cepheus. It is classified as a semiregular star, and has a maximum apparent magnitude of +7...

IBM operating systems Solid rocket booster SRb, a subtype of semiregular variable star Swedish Red-and-White or Svensk Röd och Vit Boskap, a breed of...

cool hypergiant star, VY Canis Majoris, and is also known as a heavily mass-losing OH/IR supergiant. It is also a semiregular variable star with a period...

3639 and HD 78712, is a star about 490 light years from the Earth in the constellation Cancer. It is a semiregular variable star, ranging in brightness...

open cluster NGC 7419 in the constellation of Cepheus. It is a semiregular variable star with a maximum brightness of magnitude 14.4 and a minimum of magnitude...

supergiant star in the constellation Taurus. It is a semiregular variable and its angular diameter has been measured at about 10 mas. It is a similar star to...

4th magnitude semiregular variable star in the constellation Lyra, approximately 350 light years away from Earth. It is a red giant star of the spectral...

elements and its core is composed of carbon and oxygen. It is a semiregular variable star of the Mu Cephei type, whose apparent magnitude varies between...

RW Cygni is a semiregular variable star in the constellation Cygnus, about a degree east of 2nd magnitude γ Cygni. Its apparent magnitude varies between...

to a peak of +4.6 and now around +5.3 and is classified as a semiregular variable star of type SRd. It is undergoing strong mass loss as part of its...

orbit of Jupiter. It is also a semiregular variable, a star whose variations are less regular than those of Mira variables. S Persei was named by German...

star behaviour. Located near Alkes is the red-hued R Crateris, a semiregular variable star of type SRb and a spectral classification of M7. It ranges from...

and lying around 290 light-years distant. It is classified as a semiregular variable star and its brightness varies from magnitude +4.75 to +4.93. Described...

X Herculis is a star about 400 light years from the Earth in the constellation Hercules. It is a semiregular variable star, ranging in brightness from...

distinct star systems in the constellation Orion: ο1 Orionis (4 Orionis), an M3S semiregular variable star ο2 Orionis (9 Orionis), a K2 giant star All of...

of this star has been one of the stable anchor points by which other stars are classified. It is suspected of being a semiregular variable star whose apparent...

light-years (150 parsecs) distant from the Solar System. It is a semiregular variable star that varies between a maximum magnitude of 6.14 and minimum magnitude...