List of Variable Stars

There are over 41,638 known variable stars (2008), with more being discovered regularly, so a complete list of every single variable is impossible at this place (cf. GCVS). The following is a list of variable stars that are well-known, bright, significant, or otherwise interesting.

Designation (name) Constellation Discovery Apparent magnitude (Maximum) Apparent magnitude (Minimum) Period Type Comment
R And Andromeda 5m.8 14m.9 409 d Mira variable (M)
S And (Supernova 1885) Andromeda Ernst Hartwig, August 20, 1885 5m.8 <16m - Supernova (SNI)
U Ant Antlia 8m.1 (p) 9m.7 (p) - LB-star
θ Aps Apus 6m.4 (p) 8m.6 (p) 119 d Semiregular (SRB)
η Aql Aquila Pigott, 1784 3m.48 4m.39 7.17664 d Cepheid (DCEP)
R Aql Aquila 5m.5 12m.0 284 d Mira variable (M)
V Aql Aquila 6m.6 8m.4 353 d Semiregular variable (SRB)
R Aqr Aquarius Karl Ludwig Harding, 1811 5m.8 12m.4 387 d Mira variable (M)
T Aqr Aquarius 7m.2 14m.2 202 d Mira variable (M)
U Ara Ara 7m.7 14m.1 225 d Mira variable (M)
R Ari Aries 7m.4 13m.7 187 d Mira variable (M)
U Ari Aries 7m.2 15m.2 371 d Mira variable (M)
ε Aur Auriga J.H. Fritsch, 1821 2m.92 3m.83 27.08 years Algol variable (EA/GS)
R Aur Auriga 6m.7 13m.9 458 d Mira variable (M)
AE Aur Auriga 5m.78 6m.08 - Orion variable (INA)
R Boo Boötes 6m.2 13m.1 223 d Mira variable (M)
W Boo Boötes 4m.73 5m.4 ~450 d Semiregular (SRB:)
X Cam Camelopardalis 7m.4 14m.2 144 d Mira variable (M)
VZ Cam Camelopardalis 4m.80 4m.96 23.7 d Semiregular variable (SR)
R Cap Capricornus Hind, 1848 9m.4 14m.9 345 d Mira variable (M)
η Car Carina Burchell, 1827 -0m.8 7m.9 - S Doradus (SDOR) "The unpredictable supergiant"
l Car Carina 3m.28 4m.18 35.53584 d Cepheid (DCEP)
R Car Carina 3m.9 10m.5 309 d Mira variable (M)
S Car Carina 4m.5 9m.9 149 d Mira variable (M)
γ Cas Cassiopeia 1m.6 3m.0 - Gamma Cassiopeiae (GCAS)
R Cas Cassiopeia 4m.7 13m.5 430 d Mira variable (M)
S Cas Cassiopeia 7m.9 16m.1 612 d Mira variable (M)
W Cas Cassiopeia 7m.8 12m.5 406 d Mira variable (M)
WZ Cas Cassiopeia 6m.3 8m.5 - Semiregular variable (SRB) Visual double star, visible through binoculars
R Cen Centaurus 5m.3 11m.8 546 d Mira variable (M)
S Cen Centaurus 9m.2 (p) 10m.7 (p) 65 d Semiregular variable (SR)
T Cen Centaurus 5m.5 9m.0 90.44 d Semiregular variable (SRA)
V645 Cen (Proxima Centauri) Centaurus 12m.1 (B) 13m.12 (B) - UV Ceti (UV)
δ Cep Cepheus John Goodricke, 1784 3m.48 4m.37 5.36634 d prototype Cepheid (DCEP) double star, visible in binoculars
μ Cep Cepheus William Herschel, 1782 3m.43 5m.1 730 d Semiregular variable (SRC)
S Cep Cepheus 7m.4 12m.9 487 d Mira (M)
T Cep Cepheus 5m.2 11m.3 388 d Mira (M)
U Cep Cepheus 6m.75 9m.24 2.49305 d Algol type (EA/SD)
SS Cep Cepheus 8m.0 (p) 9m.1 (p) 90 d Semiregular (SRB)
AR Cep Cepheus 7m.0 7m.9 - Semiregular (SRB)
ο Cet (Mira) Cetus David Fabricius, 1596; variability may have been first noted by Johannes Fokkes Holwarda, 1638 2m.0 10m.1 332 d Mira (M) "The miraculous"
T Cet Cetus 5m.0 6m.9 159 d Semiregular (SRC)
U Cet Cetus 6m.8 13m.4 235 d Mira (M)
W Cet Cetus 7m.1 14m.8 351 d Mira (M)
R Cha Chamaeleon 7m.5 14m.2 335 d Mira (M)
R CMa Canis Major 5m.70 6m.34 1.13594 d Algol type (EA/SD)
VY CMa Canis Major 6m.5 9m.6 - unique (*)
FW CMa Canis Major 5m.00 5m.50 - Gamma Cassiopeiae (GCAS)
S CMi Canis Minor 6m.6 13m.2 333 d Mira (M)
R Cnc Cancer 6m.07 11m.8 362 d Mira (M)
S Cnc Cancer Hind, 1848 8m.29 10m.25 9.48455 d Algol type (EA/DS)
T Cnc Cancer Hind, 1850 7m.6 10m.5 482 d Semiregular (SRB)
X Cnc Cancer 5m.6 7m.5 ~195 d Semiregular (SRB)
T Col Columba 6m.6 12m.7 226 d Mira (M)
R Com Coma Berenices 7m.1 14m.6 363 d Mira (M)
α CrB (Alphecca or Gemma) Corona Borealis 2m.21 (B) 2m.32 (B) 17.35991 d Algol type (EA/DM)
R CrB Corona Borealis Pigott, 1795 5m.71 14m.8 - R Coronae Borealis (RCB)
S CrB Corona Borealis 5m.8 14m.1 360 d Mira (M)
T CrB Corona Borealis 2m.0 10m.8 (80 years) recurrent nova (NR)
U CrB Corona Borealis 7m.66 8m.79 3.45220 d Algol type (EA/SD)
V CrB Corona Borealis 6m.9 12m.6 358 d Mira (M)
W CrB Corona Borealis 7m.8 14m.3 238 d Mira (M)
R Cru Crux 6m.40 7m.23 5.82575 d Cepheid (DCEP)
R Crv Corvus 6m.7 14m.4 317 d Mira (M)
χ Cyg Cygnus Kirch, 1686 3m.3 14m.2 408 d Mira (M)
R Cyg Cygnus 6m.1 14m.4 426 d Mira (M)
U Cyg Cygnus 5m.9 12m.1 463 d Mira (M)
W Cyg Cygnus 6m.80 (B) 8m.9 (B) 131 d Semiregular (SRB)
X Cyg Cygnus 5m.85 6m.91 16.38633 d Cepheid (DCEP)
RT Cyg Cygnus 6m.0 13m.1 190 d Mira (M)
SS Cyg Cygnus 7m.7 12m.4 (49.5 d) UGSS prototype
SU Cyg Cygnus 6m.44 7m.22 3.84555 d Cepheid (DCEP)
CH Cyg Cygnus 5m.60 8m.49 - Z Andromedae (ZAND+SR)
R Del Delphinus 7m.6 13m.8 285 d Mira (M)
U Del Delphinus 7m.6 (p) 8m.9 (p) ~110 d Semiregular (SRB)
EU Del Delphinus 5m.79 6m.9 59.7 d Semiregular (SRB)
β Dor Dorado 3m.46 4m.08 9.8426 d Cepheid (DCEP)
S Dor Dorado 8m.6 (B) 11m.5 (B) - SDOR prototype in the Large Magellanic Cloud
R Dra Draco 6m.7 13m.2 246 d Mira (M)
T Eri Eridanus 7m.2 13m.2 252 d Mira (M)
R For Fornax 7m.5 13m.0 389 d Mira (M)
η Gem Gemini 3m.15 3m.9 233 d Semiregular (SRA+EA)
ζ Gem Gemini 3m.62 4m.18 10.15073 d Cepheid (DCEP)
R Gem Gemini Hind, 1848 6m.0 14m.0 370 d Mira (M)
S Gem Gemini Hind, 1848 8m.0 14m.7 293 d Mira (M)
T Gem Gemini Hind, 1848 8m.0 15m.0 288 d Mira (M)
U Gem Gemini 8m.2 14m.9 (105.2 d) dwarf nova (UGSS+E)
S Gru Grus 6m.0 15m.0 402 d Mira (M)
α Her Hercules William Herschel, 1759 2m.74 4m.0 - Semiregular (SRC)
g Her (30 Her) Hercules 4m.3 6m.3 89.2 d Semiregular (SRB)
u Her (68 Her) Hercules 4m.69 5m.37 2.05103 d Algol type (EA/SD)
S Her Hercules 6m.4 13m.8 307 d Mira (M)
U Her Hercules 6m.4 13m.4 406 d Mira (M)
X Her Hercules 7m.5 (p) 8m.6 (p) 95.0 d Semiregular (SRB)
R Hor Horologium 4m.7 14m.3 408 d Mira (M)
U Hor Horologium 7m.8 (p) <15m.1 (p) 348 d Mira (M)
R Hya Hydra Maraldi, 1704 3m.5 10m.9 389 d Mira (M)
S Hya Hydra Hind, 1848 7m.2 13m.3 257 d Mira (M)
U Hya Hydra 7m.0 (B) 9m.4 (B) ~450 d Semiregular (SRB)
VW Hya Hydra 10m.5 14m.1 2.69642 d Algol type (EA/SD)
BL Lac Lacerta 12m.4 (B) 17m.2 (B) - BLLAC prototype originally thought to be a variable star, but later

discovered to be a blazar

R Leo Leo J.A. Koch, 1782 4m.4 11m.3 310 d Mira (M)
R Lep Lepus 5m.5 11m.7 427 d Mira (M) Hind's Crimson Star
RX Lep Lepus 5m.0 7m.4 ~60 d Semiregular (SRB)
R LMi Leo Minor 6m.3 13m.2 372 d Mira (M)
RU Lup Lupus 9m.6 (p) 13m.4 (p) - Orion variable (INT)
β Lyr Lyra John Goodricke, 1784 3m.25 4m.36 12.91383 d EB prototype
R Lyr Lyra 3m.88 5m.0 ~46 d Semiregular (SRB)
RR Lyr Lyra 7m.06 8m.12 0.566868 d prototypical RR Lyrae variable
U Mic Microscopium 7m.0 14m.4 334 d Mira (M)
U Mon Monoceros 6m.1 (p) 8m.8 (p) 91.3 d RV Tauri (RVB)
V Mon Monoceros 6m.0 13m.9 341 d Mira (M)
R Nor Norma 6m.5 (p) 13m.9 (p) 508 d Mira (M)
T Nor Norma 6m.2 13m.6 241 d Mira (M)
R Oct Octans 6m.4 13m.2 405 d Mira (M)
S Oct Octans 7m.2 14m.0 259 d Mira (M)
V Oph Ophiuchus 7m.3 11m.6 297 d Mira (M)
X Oph Ophiuchus 5m.9 9m.2 329 d Mira (M)
RS Oph Ophiuchus 4m.3 12m.5 - recurrent nova (NR)
BF Oph Ophiuchus 6m.93 7m.71 4.06775 d Cepheid (DCEP)
α Ori (Betelgeuse) Orion John Herschel, 1840 0m.0 1m.3 6.39 years Semiregular (SRC)
δ Ori (Mintaka) Orion John Herschel, 1834 2m.14 2m.26 5.73248 d Algol type (EA/DM)
R Ori Orion Hind, 1848 9m.05 13m.4 377 d Mira (M)
U Ori Orion 4m.8 13m.0 368 d Mira (M)
W Ori Orion 8m.2 (p) 12m.4 (p) 212 d Semiregular (SRB)
VV Ori Orion 5m.31 5m.66 1.48538 d Algol type (EA/KE:)
CK Ori Orion 5m.9 7m.1 ~120 d Semiregular (SR:)
κ Pav Pavo 3m.91 4m.78 9.09423 d Cepheid (CEP)
S Pav Pavo 6m.6 10m.4 381 d Semiregular (SRA)
β Peg Pegasus Schmidt, 1847 2m.31 2m.74 - LB
R Peg Pegasus Hind, 1848 6m.9 13m.8 378 d Mira (M)
X Peg Pegasus 8m.8 14m.4 201 d Mira (M)
β Per (Algol) Perseus Geminiano Montanari, 1669 2m.12 3m.39 2.86730 d Algol type (EA/SD) The Demon Star
DY Persei Perseus DY Persei / R Coronae Borealis
φ Per Perseus 3m.96 4m.11 19.5 d Gamma Cassiopeiae (GCAS)
ρ Per Perseus 3m.30 4m.0 ~50 d Semiregular (SRB)
X Per Perseus 6m.03 7m.0 - Gamma Cassiopeiae (GCAS+XP)
ζ Phe Phoenix 3m.91 4m.42 1.66977 d Algol type (EA/DM)
R Pic Pictor 6m.35 10m.1 171 d Semiregular (SR)
R Psc Pisces Hind, 1850 7m.0 14m.8 345 d Mira (M)
TX Psc Pisces 4m.79 5m.20 - LB
L2 Pup Puppis 2m.6 6m.2 141 d Semiregular (SRB)
RS Pup Puppis 6m.52 7m.67 41.3876 d Cepheid (DCEP)
T Pyx Pyxis 7m.0 (B) 15m.77 (B) (20 years) Recurrent nova (NR)
S Scl Sculptor 5m.5 13m.6 363 d Mira (M)
RR Sco Scorpius 5m.0 12m.4 281 d Mira (M)
RS Sco Scorpius 6m.2 13m.0 320 d Mira (M)
RT Sco Scorpius 7m.0 15m.2 449 d Mira (M)
R Sct Scutum Pigott, 1795 4m.2 8m.6 146.5 d RV Tauri (RVA)
R Ser Serpens Harding, 1826 5m.16 14m.4 356 d Mira (M)
S Ser Serpens Harding, 1828 7m.0 14m.1 372 d Mira (M)
U Sge Sagitta 6m.45 9m.28 3.38062 d Algol type (EA/SD)
WZ Sge Sagitta 7m.0 (B) 15m.53 (B) (33 years) dwarf nova (UGSU+E+ZZ)
RR Sgr Sagittarius 5m.4 14m.0 336 d Mira (M)
R Sgr Sagittarius 6m.7 12m.83 270 d Mira (M)
U Sgr Sagittarius(in M25) 6m.28 7m.15 6.74523 d Cepheid (DCEP)
RT Sgr Sagittarius 6m.0 14m.1 306 d Mira (M)
RU Sgr Sagittarius 6m.0 13m.8 240 d Mira (M)
RY Sgr Sagittarius 5m.8 14m.0 - R Coronae Borealis (RCB)
VX Sgr Sagittarius 6m.52 14m.0 732 d Semiregular (SRC)
λ Tau Taurus Baxendell, 1848 3m.37 3m.91 3.95295 d Algol type (EA/DM)
R Tau Taurus Hind, 1849 7m.6 15m.8 321 d Mira (M)
T Tau Taurus 9m.3 13m.5 - Orion variable (INT)
SU Tau Taurus 9m.1 16m.86 - R Coronae Borealis (RCB)
R Tri Triangulum 5m.4 12m.6 267 d Mira (M)
R UMa Ursa Major 6m.5 13m.7 302 d Mira (M)
T UMa Ursa Major 6m.6 13m.5 257 d Mira (M)
U UMa Ursa Major 6m.20 6m.25 - -
Z UMa Ursa Major 6m.2 9m.4 196 d Semiregular (SRB)
α UMi (Polaris) Ursa Minor 1m.86 2m.13 3.9696 d Cepheid (DCEPS)
R Vir Virgo Harding, 1809 6m.1 12m.1 146 d Mira (M)
S Vir Virgo 6m.3 13m.2 375 d Mira (M)

Famous quotes containing the words list of, list, variable and/or stars:

    A man’s interest in a single bluebird is worth more than a complete but dry list of the fauna and flora of a town.
    Henry David Thoreau (1817–1862)

    Do your children view themselves as successes or failures? Are they being encouraged to be inquisitive or passive? Are they afraid to challenge authority and to question assumptions? Do they feel comfortable adapting to change? Are they easily discouraged if they cannot arrive at a solution to a problem? The answers to those questions will give you a better appraisal of their education than any list of courses, grades, or test scores.
    Lawrence Kutner (20th century)

    Walked forth to ease my pain
    Along the shore of silver streaming Thames,
    Whose rutty bank, the which his river hems,
    Was painted all with variable flowers,
    Edmund Spenser (1552?–1599)

    Think not, Percy,
    To share with me in glory any more.
    Two stars keep not their motion in one sphere.
    William Shakespeare (1564–1616)