List of stars in Cancer
Encyclopedia
This is the list of notable star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 Cancer
Cancer (constellation)
Cancer is one of the twelve constellations of the zodiac. Its name is Latin for crab and it is commonly represented as such. Its symbol is . Cancer is small and its stars are faint...

, sorted by decreasing brightness.
Name B
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...

F
Flamsteed designation
Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek letters. Each star is assigned a number and the Latin genitive of the constellation it lies in...

HD
Henry Draper Catalogue
The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the...

HIP RA
Right ascension
Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:...

Dec
Declination
In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and...

vis.
mag.
Apparent magnitude
The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...

abs.
mag.
Absolute magnitude
Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth...

Dist. (ly) Sp. class
Stellar classification
In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...

Notes
β Cnc
Beta Cancri
Beta Cancri is the brightest star in the constellation Cancer. It has the traditional name Tarf or Al Tarf , certainly a derivation from Arabic الطرف aṭ-ṭarf "the eye" or طرفة aṭ-ṭarfah "the glance "...

 
β 17 69267 40526 3.53 −1.22 290 K4III Al Tarf
δ Cnc
Delta Cancri
Delta Cancri is an orange giant star approximately 180 light-years away in the constellation Cancer. It has the traditional name Asellus Australis which in Latin means "southern donkey colt"...

 
δ 47 74442 42911 3.94 0.84 136 K0III Asellus Australis
ι Cnc A
Iota Cancri
Iota Cancri is a double star in the constellation Cancer. The brighter component is approximately 298 light years from Earth....

 
ι 48 74739 43103 4.03 −0.77 298 G8Iab: binary star
Binary star
A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary...

α Cnc
Alpha Cancri
Alpha Cancri is a star system in the constellation Cancer. It has the traditional name Acubens , and is more rarely called Al Zubanah, from the Arabic الزبانة az-zubānah, "the claws "...

 
α 65 76756 44066 4.26 0.63 173 A5m Acubens, Sertan
γ Cnc
Gamma Cancri
Gamma Cancri is a star system in the constellation Cancer. It has the traditional name Asellus Borealis ....

 
γ 43 74198 42806 4.66 1.23 158 A1IV Asellus Borealis
ζ1 Cnc
Zeta Cancri
Zeta Cancri is a star system in the constellation Cancer containing at least four stars. It has the traditional name Tegmine "the shell "...

 
ζ1 16 68255 40167 4.67 2.63 83 G0V Tegmine
χ Cnc
Chi Cancri
Chi Cancri is a star in the constellation Cancer.χ Cancri is a yellow-white F-type main sequence dwarf with an apparent magnitude of +5.13. It is approximately 59.1 light years from Earth....

 
χ 18 69897 40843 5.13 3.84 59 F6V
3 G. Cnc 71115 41325 5.13 −0.08 359 G8II double star
Double star
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...

8 Cnc
8 Cancri
8 Cancri is a star in the constellation Cancer.8 Cancri is a white A-type main sequence dwarf with an apparent magnitude of +5.14. It is approximately 211 light years from Earth....

 
8 66664 39567 5.14 1.09 210 A1V
ξ Cnc
Xi Cancri
Xi Cancri is a spectroscopic binary in the constellation Cancer. It is approximately 381 light years from Earth.-Name:This star, along with λ Leo , were the Persian Nahn, "the Nose", and the Coptic Piautos, "the Eye", both lunar asterisms..Nahn was the title of this star in the catalogue of stars...

 
ξ 77 78515 44946 5.16 −0.18 380 K0III
ο1 Cnc
Omicron1 Cancri
Omicron1 Cancri is a star in the constellation Cancer.ο1 Cancri is a white A-type giant with an apparent magnitude of +5.22. It is approximately 160 light years from Earth....

 
ο1 62 76543 43970 5.22 1.77 160 A5III
ρ2 Cnc  ρ2 58 76219 43834 5.23 −1.00 574 G8II-III RZ Ari; semiregular variable
σ3 Cnc
Sigma3 Cancri
Sigma3 Cancri is a star in the constellation Cancer. It is approximately 320 light years from Earth.σ3 Cancri is a yellow G-type giant with an apparent magnitude of +5.23....

 
σ3 64 76813 44154 5.23 0.27 320 G9III
κ Cnc
Kappa Cancri
Kappa Cancri is a star in the constellation Cancer.κ Cancri is a blue-white B-type giant with a mean apparent magnitude of +5.23. It is approximately 484 light years from Earth. It is classified as an Alpha2 Canum Venaticorum type variable star and its brightness varies from magnitude +5.22 to...

 
κ 76 78316 44798 5.23 −0.63 484 B8IIIMNp α2 CVn variable
Alpha2 Canum Venaticorum variable
An Alpha2 Canum Venaticorum variable is a type of variable star. These stars are chemically peculiar main sequence stars of spectral class B8p to A7p. They have strong magnetic fields and strong silicon, strontium, or chromium spectral lines...

μ Cnc
Mu Cancri
Mu Cancri is the name of several stars* Mu-2 Cancri * Mu-1 Cancri Mu Cancri also sometimes just means Mu2 Cancri....

 
μ 10 67228 39780 5.30 3.46 76 G2IV
θ Cnc
Theta Cancri
Theta Cancri is a binary star in the constellation Cancer, 494 light years from Earth.θ Cancri is classified as an orange K-type giant with an apparent magnitude of +5.33. Since it is near the ecliptic, it can be occulted by the Moon and, very rarely, by planets...

 
θ 31 72094 41822 5.33 −0.57 494 K5III
η Cnc
Eta Cancri
Eta Cancri is a star in the constellation Cancer.η Cancri is an orange K-type giant with an apparent magnitude of +5.33. It is approximately 312 light years from Earth....

 
η 33 72292 41909 5.33 0.43 312 K3III
π Cnc
Pi Cancri
Pi Cancri is a star in the constellation Cancer.π Cancri is an orange K-type giant with an apparent magnitude of +7.36. It is approximately 701 light years from Earth....

 
π 82 79554 45410 5.36 −1.30 701 K1III
57 Cnc
57 Cancri
57 Cancri is a binary star in the constellation Cancer. It is approximately 365 light years from Earth.The primary component, 57 Cancri A, is a yellow G-type giant with an apparent magnitude of +6.1. Its companion, 57 Cancri B is an orange K-type star with an apparent magnitude of +6.6. The two...

 
57 75959 43721 5.40 0.15 365 G7III
τ Cnc
Tau Cancri
Tau Cancri is a star in the constellation Cancer.τ Cancri is a yellow G-type giant with an apparent magnitude of +5.42. It is approximately 260 light years from Earth....

 
τ 72 78235 44818 5.42 0.91 260 G8III
60 Cnc
60 Cancri
60 Cancri is a star in the constellation Cancer.60 Cancri is an orange K-type giant with an apparent magnitude of +5.44. It is approximately 582 light years from Earth....

 
60 76351 43851 5.44 −0.82 582 K5III
σ2 Cnc
Sigma2 Cancri
Sigma2 Cancri is a star in the constellation Cancer.σ2 Cancri is a white A-type subgiant with an apparent magnitude of +5.44. It is approximately 195 light years from Earth....

 
σ2 59 76398 43932 5.44 1.56 195 A7IV
ν Cnc
Nu Cancri
Nu Cancri is a star in the constellation Cancer.ν Cancri is a white A-type main sequence dwarf with an apparent magnitude of +5.45. It is approximately 457 light years from Earth....

 
ν 69 77350 44405 5.45 −0.28 457 A0pSi
BP Cnc
27 Cancri
27 Cancri is a star in the constellation Cancer.27 Cancri is a M-type red giant with a mean apparent magnitude of +5.56. It is approximately 1050 light years from Earth. It is classified as a semiregular variable star and its brightness varies from magnitude +5.41 to +5.75 with a period of 40...

 
27 71250 41400 5.56 −1.98 1052 M3III semiregular variable
φ1 Cnc
Phi1 Cancri
Phi1 Cancri is a star in the constellation Cancer.φ1 Cancri is an orange K-type giant with an apparent magnitude of +5.58. It is approximately 398 light years from Earth....

 
φ1 22 71093 41377 5.58 0.15 398 K5III
3 Cnc
3 Cancri
3 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.60....

 
3 65759 39177 5.60 −1.12 721 K3III
15 Cnc
15 Cancri
15 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.62....

 
15 68351 40240 5.62 −1.52 872 B9p SiCr BM Cnc; α2 CVn variable
45 Cnc
45 Cancri
45 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.62....

 
A1 45 74228 42795 5.62 −1.87 1028 A3V+...
49 Cnc
49 Cancri
49 Cancri is an A-class star in the constellation Cancer. Its apparent magnitude is 5.63....

 
b 49 74521 42917 5.63 0.15 408 A1p... BI Cnc; α2 CVn variable
σ1 Cnc
Sigma1 Cancri
Sigma1 Cancri is a star in the constellation Cancer.σ1 Cancri is a white A-type main sequence dwarf with an apparent magnitude of +5.67. It is approximately 204 light years from Earth....

 
σ1 51 75698 43584 5.67 1.69 204 A8Vms
ο2 Cnc
Omicron2 Cancri
Omicron2 Cancri is a star in the constellation Cancer.ο2 Cancri is a yellow-white F-type subgiant with an apparent magnitude of +5.68. It is approximately 161 light years from Earth....

 
ο2 63 76582 44001 5.68 2.22 161 F0IV
υ1 Cnc
Upsilon1 Cancri
Upsilon1 Cancri is a star in the constellation Cancer.υ1 Cancri is a yellow-white F-type giant with an apparent magnitude of +5.71. It is approximately 237 light years from Earth....

 
υ1 30 72041 41816 5.71 1.40 237 F0IIIn
ψ Cnc
Psi Cancri
The Bayer designation Psi Cancri is shared by two star systems, separated by 0.34° on the sky, in the constellation Cancer:* ψ¹ Cancri* ψ² Cancri, which is often referred to solely as ψ Cancri...

 
ψ, ψ2 14 67767 40023 5.73 2.61 137 G8IV
1 Cnc
1 Cancri
1 Cancri , is a K-type giant in the constellation Cancer....

 
1 64960 38848 5.80 0.04 462 K3III
69994 40866 5.80 −0.17 510 K1III
13 G. Cnc 77445 44406 5.85 −0.69 664 K3III:
ω Cnc
Omega Cancri
Omega Cancri is a star in the constellation Cancer.ω Cancri is a yellow G-type giant with an apparent magnitude of +5.87. It is approximately 1125 light years from Earth....

 
ω 2 65714 39191 5.87 −1.82 1124 G8III:
50 Cnc
50 Cancri
50 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.89....

 
A2 50 74873 43121 5.89 1.96 199 A1V
66 Cnc
66 Cancri
66 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.89....

 
66 77104 44307 5.89 −0.08 509 A2V
6 G. Cnc 72945 42172 5.91 3.79 87 F8V
λ Cnc
Lambda Cancri
Lambda Cancri is a star in the constellation Cancer.λ Cancri is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.92. It is approximately 419 light years from Earth....

 
λ 19 70011 40881 5.92 0.37 419 B9.5V
36 Cnc
36 Cancri
36 Cancri is an A-class star in the constellation Cancer. Its apparent magnitude is 5.92....

 
c 36 73143 42265 5.92 0.17 461 A3V
20 Cnc
20 Cancri
20 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.94....

 
d1 20 70569 41117 5.94 0.52 395 A9V
29 Cnc
29 Cancri
29 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.94....

 
29 71555 41578 5.94 1.07 308 A5V
75 Cnc
75 Cancri
75 Cancri is a G-class star in the constellation Cancer. Its apparent magnitude is 5.95....

 
75 78418 44892 5.95 3.47 102 G5IV
9 Cnc  μ1 9 66875 39659 5.96 −0.46 626 M3III BL Cnc
73192 42365 5.96 0.70 367 K2III:
55 Cnc
55 Cancri
55 Cancri , also cataloged Rho1 Cancri or abbreviated 55 Cnc, is a binary star approximately 41 light-years away from Earth in the constellation of Cancer...

 
ρ1 55 75732 43587 5.96 5.47 41 G8V binary star; has five planets
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...

 (b
55 Cancri b
55 Cancri b is an extrasolar planet orbiting the Sun-like star 55 Cancri A every 14.65 days. It is the second planet in order of distance from its star, and is an example of a hot Jupiter. Discovered in 1996 by Geoffrey Marcy and R...

, c
55 Cancri c
55 Cancri c is an extrasolar planet in an eccentric orbit around the Sun-like star 55 Cancri A, making one revolution every 44.34 days. It is the third known planet in order of distance from its star...

, d
55 Cancri d
55 Cancri d is an extrasolar planet in a long-period orbit around the Sun-like star 55 Cancri A. Located at a similar distance from its star as Jupiter is from our Sun, it is the fifth and outermost known planet in its planetary system...

, e
55 Cancri e
55 Cancri e is an extrasolar planet with half the mass of Neptune orbiting the Sun-like star 55 Cancri A. Its mass is about 8.3 Earth masses, thus classifying it as the first Super-Earth discovered around a main sequence star, predating Gliese 876 d by a year...

, f
55 Cancri f
55 Cancri f is an extrasolar planet approximately 41 light-years away from Earth in the constellation of Cancer...

)
5 Cnc
5 Cancri
5 Cancri is a star in the constellation Cancer. Its apparent magnitude is 5.99....

 
5 65873 39236 5.99 0.19 472 B9.5Vn
68461 40231 6.03 −0.02 528 G8III
5 G. Cnc 72617 42049 6.04 2.22 189 F3IV
79 Cnc
79 Cancri
79 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.04....

 
79 78715 45033 6.04 0.49 420 G8III
RS Cnc  78712 45058 6.04 0.61 397 M6S semiregular variable
65257 38975 6.05 −2.11 1399 K0
65522 39067 6.05 1.22 301 K2
28 Cnc
28 Cancri
28 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.05....

 
28 71496 41574 6.05 1.45 271 F0Vn CX Cnc; δ Sct variable
Delta Scuti variable
A Delta Scuti variable is a variable star which exhibits variations in its luminosity due to both radial and non-radial pulsations of the star's surface. Typical brightness fluctuations are from 0.003 to 0.9 magnitudes in V over a period of a few hours, although the amplitude and period of the...

67 Cnc
67 Cancri
67 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.07. It was discovered by James South and John Herschel....

 
67 77190 44342 6.07 2.23 191 A8Vn
68099 40085 6.08 −1.06 872 B6III
21 Cnc
21 Cancri
21 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.11....

 
21 70734 41163 6.11 −1.56 1113 M2III
25 Cnc
25 Cancri
25 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.11....

 
d2 25 71030 41319 6.11 2.85 147 F6V
46 Cnc
46 Cancri
46 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.12....

 
46 74485 42954 6.12 0.30 477 G5III
80546 45896 6.16 1.22 317 K3III
76508 43957 6.17 0.82 384 K1III
12 G. Cnc 76629 44010 6.19 −1.15 956 G8III
66552 39535 6.21 1.40 299 B9V
66684 39607 6.21 −1.08 934 A0V
73596 42538 6.21 1.05 350 F5III
67959 40058 6.22 −0.04 581 A1V
12 Cnc
12 Cancri
12 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.25....

 
12 67483 39874 6.25 1.59 278 F3V
53 Cnc
53 Cancri
53 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.25....

 
53 75716 43575 6.25 −0.92 886 M3III BO Cnc
61 Cnc
61 Cancri
61 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.25. It is approximately 165.3 light years away from Earth....

 
61 76572 44031 6.25 2.75 164 F6V
72505 42010 6.26 1.40 306 K0III
2 G. Cnc 69478 40617 6.28 −1.28 1062 G8III
X Cnc  76221 43811 6.28 −3.95 3622 C6II carbon star
Carbon star
A carbon star is a late-type star similar to a red giant whose atmosphere contains more carbon than oxygen; the two elements combine in the upper layers of the star, forming carbon monoxide, which consumes all the oxygen in the atmosphere, leaving carbon atoms free to form other carbon compounds,...

ε Cnc
Epsilon Cancri
Epsilon Cancri is a star in the constellation Cancer. ε Cancri is one of the brighter members of the Beehive Cluster, and the Bayer designation ε Cancri originally referred to the entire cluster....

 
ε 41 73731 42556 6.29 0.16 548 Am member of the Beehive
Beehive Cluster
The Beehive Cluster, also known as Praesepe , M44, NGC 2632, or Cr 189, is an open cluster in the constellation Cancer. It is one of the nearest open clusters to the Solar System, and it contains a larger star population than most other nearby clusters...

 star cluster
Star cluster
Star clusters or star clouds are groups of stars. Two types of star clusters can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars which are gravitationally bound, while open clusters, more loosely clustered groups of stars, generally contain less than...

65735 39180 6.30 1.18 345 K1III
φ2 Cnc
Phi2 Cancri
Phi2 Cancri is a binary star in the constellation Cancer. It is approximately 277 light years from Earth.Both binary components are white A-type main sequence dwarfs have similar apparent magnitudes of +6.30. The two components are separated by 5.1 arcseconds on the sky. Their mean apparent...

 
φ2 23 71150 41404 6.30 1.66 277 A3V+...
φ2 Cnc
Phi2 Cancri
Phi2 Cancri is a binary star in the constellation Cancer. It is approximately 277 light years from Earth.Both binary components are white A-type main sequence dwarfs have similar apparent magnitudes of +6.30. The two components are separated by 5.1 arcseconds on the sky. Their mean apparent...

 
φ2 23 71151 6.30 component of the φ2 Cnc system
FZ Cnc  76830 44126 6.30 −0.35 697 M4IIIvar variable
Variable star
A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...

4 Cnc
4 Cancri
4 Cancri is an A-class star in the constellation Cancer. Its apparent magnitude is 6.32....

 
4 65856 39263 6.32 0.00 598 A1V
72943 42187 6.33 1.77 267 F0IV
65757 39194 6.34 1.70 276 K1III-IV
υ2 Cnc
Upsilon2 Cancri
Upsilon2 Cancri is a star in the constellation Cancer.υ2 Cancri is a yellow G-type giant with an apparent magnitude of +6.35. It is approximately 421 light years from Earth....

 
υ2 32 72324 41940 6.35 0.80 421 G9III
54 Cnc
54 Cancri
54 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.6....

 
54 75528 43454 6.36 3.35 130 G2IV
68776 40354 6.39 −0.49 776 G8III
39 Cnc
39 Cancri
39 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.39.39 Cancer is a member of the Beehive Cluster....

 
39 73665 42516 6.39 0.11 587 K0III
78175 44768 6.39 2.54 192 F5V
80064 45614 6.40 0.30 542 A2IV
75469 43427 6.41 −0.43 762 A2Vs
69629 40675 6.42 0.56 485 K0
73710 42549 6.42 −0.41 756 K0III
ψ1 Cnc
Psi1 Cancri
Psi1 Cancri is a star in the constellation Cancer. It is classified as an orange K-type giant, with an apparent magnitude of +6.44. It is approximately 1030 light years from Earth. Its designation is unusual as it is one of a very few stars which have a Bayer designation and are not in the...

 
ψ1 13 67690 40007 6.44 −1.06 1032 K0
7 G. Cnc 73599 42462 6.46 0.32 551 K1III
77660 44574 6.46 1.96 259 A8V
67542 39958 6.47 −3.93 3928 G0II
68703 40342 6.47 1.45 329 A0Vne...
78234 44825 6.47 1.32 349 F2V
34 Cnc
34 Cancri
34 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.48....

 
34 72359 41904 6.48 0.38 541 A1V
78661 44984 6.48 3.60 123 F2p
79248 45272 6.48 0.57 496 A2V
76908 44148 6.49 −1.50 1294 K5III
81 Cnc
81 Cancri
81 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.49....

 
81 79096 45170 6.49 4.93 67 G9V
72115 41833 6.50 −0.99 1025 K0
24 Cnc A
24 Cancri
24 Cancri is a binary star in the constellation Cancer. Its components' apparent magnitudes are 6.51 and 7.81....

 
24 71152 41389 6.51 2.11 248 F0III double star
Double star
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...

37 Cnc
37 Cancri
37 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.54....

 
37 73316 42353 6.54 1.25 373 A1V
35 Cnc
35 Cancri
35 Cancri is a star in the constellation Cancer. 35 Cancri is a member of the Beehive Cluster.35 Cancri is a yellow G-type giant star with an apparent magnitude of +6.58. It is approximately 586 light years from Earth.-References:*...

 
35 72779 42133 6.55 0.28 585 G0III
ι Cnc B
Iota Cancri
Iota Cancri is a double star in the constellation Cancer. The brighter component is approximately 298 light years from Earth....

 
ι 48 74738 43100 6.58 2.77 188 G8II... component of the ι Cnc system
40 Cnc
40 Cancri
40 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.61.40 Cancri is a member of the Beehive Cluster....

 
40 73666 42523 6.61 0.40 570 A1V
83 Cnc
83 Cancri
83 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.61....

 
83 80218 45699 6.61 3.64 128 F5
38 Cnc
38 Cancri
38 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.65....

 
38 73575 42485 6.65 0.59 531 F0III
70 Cnc
70 Cancri
70 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.67....

 
70 77557 44512 6.67 0.33 605 A1V
42 Cnc
42 Cancri
42 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.83.42 Cancri is a member of the Beehive Cluster....

 
42 73785 42578 6.83 0.87 506 A9III
80 Cnc
80 Cancri
80 Cancri is a star in the constellation Cancer. Its apparent magnitude is 6.87....

 
80 79009 45153 6.87 1.08 470 A0
R Cnc  69243 7.13 M7IIIe Mira variable
Mira variable
Mira variables , named after the star Mira, are a class of pulsating variable stars characterized by very red colors, pulsation periods longer than 100 days, and light amplitudes greater than one magnitude in infrared and 2.5 magnitude in visual...

74 Cnc
74 Cancri
74 Cancri is a K-class star in the constellation Cancer. Its apparent magnitude is 7.69....

 
74 78347 44838 7.35 1.13 572 K0
52 Cnc
52 Cancri
52 Cancri is a G-class star in the constellation Cancer. Its apparent magnitude is 7.63....

 
52 75558 43463 7.38 1.03 607 G5
24 Cnc B
24 Cancri
24 Cancri is a binary star in the constellation Cancer. Its components' apparent magnitudes are 6.51 and 7.81....

 
24 71153 7.81 component of the 24 Cnc system
HD 73534
HD 73534
HD 73534 is an 8th magnitude G-type subgiant star located approximately 316 light years away in the constellation Cancer. A G5 star, it has evolved off the main sequence, which is why it is much more luminous than our Sun. In August 2009, it was announced that it has a planet. It is the first...

 
73534 42446 8.24 3.30 316 G5IV has a planet (b
HD 73534 b
HD 73534 b is an extrasolar planet which orbits the G-type subgiant star HD 73534, located approximately 316 light years away in the constellation Cancer. It is at least 15% more massive than Jupiter and orbits at an average distance of 3.15 AU and takes 4.9 years to complete the orbit in a nearly...

)
HAT-P-31  11.66 1155 has a transiting planet (b)
DX Cnc
DX Cancri
DX Cancri is a red dwarf star that is about 9% of the mass of our Sun. It is a flare star that has intermittent changes in brightness by up to a fivefold increase....

 
14.81 17.01 11.8 M6.5V 18th nearest star; flare star
Flare star
A flare star is a variable star that can undergo unpredictable dramatic increases in brightness for a few minutes. It is believed that the flares on flare stars are analogous to solar flares in that they are due to magnetic reconnection in the atmospheres of the stars. The brightness increase is...


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