List of stars in Mensa
Encyclopedia
This is the list of notable star
s in the constellation
Mensa
, sorted by decreasing brightness.
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....
Mensa
Mensa (constellation)
Mensa is a constellation in the southern sky, created in the 18th century. Its name is Latin for table. It covers a keystone-shaped wedge of sky stretching from approximately 4h to 7.5h of right ascension, and −71 to −85.5 degrees of declination. Other than the south polar constellation...
, 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... |
G. Gould designation Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension. Each star is assigned an integer , followed by " G. " , and then 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 |
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α Men Alpha Mensae Alpha Mensae is the brightest star in the constellation Mensa. At a magnitude of 5.09, it is the dimmest lucida in all the heavens. It is a main sequence dwarf star only slightly smaller and cooler in temperature than the Sun... |
α | 33 | 43834 | 29271 | 5.08 | 5.05 | 33 | G5V | |||
γ Men | γ | 25 | 37763 | 25918 | 5.18 | 2.73 | 101 | K4III | 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... |
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β Men Beta Mensae Beta Mensae is the third brightest star in the constellation of Mensa. It is a G-type giant with an apparent visual magnitude of approximately 5.302.... |
β | 17 | 33285 | 23467 | 5.30 | −1.17 | 642 | G8III | |||
θ Men | θ | 42 | 54239 | 33384 | 5.45 | 0.26 | 356 | B9.5V | |||
κ Men | κ | 32 | 40953 | 27566 | 5.46 | 0.87 | 270 | B9.5V | |||
η Men | η | 16 | 32440 | 22871 | 5.47 | −1.23 | 712 | K6III | |||
μ Men Mu Mensae Mu Mensae is a blue giant star in the constellation Mensa. It has an apparent magnitude of +5.52 and is 148.1 parsecs or 483 light-years from the Sun.... |
μ | 14 | 30612 | 21949 | 5.53 | −0.32 | 483 | B9IV | |||
ε Men | ε | 43 | 60816 | 36039 | 5.54 | −0.24 | 466 | K2/K3III | |||
ζ Men Zeta Mensae Zeta Mensae is a white giant star in the constellation Mensa of type A5III. It has a magnitude of +5.61 and is about 123 parsecs or 403 light-years away.... |
ζ | 40 | 50506 | 31897 | 5.61 | 0.14 | 404 | A5III | |||
π Men Pi Mensae Pi Mensae is a yellow subgiant star in the constellation of Mensa. This star has a high proper motion. The apparent magnitude is 5.67, which can be visible to the naked eye in exceptionally dark, clear skies. It is nearly 60 ly away. The star dwarfs the Sun in terms of mass, size, luminosity,... |
π | 29 | 39091 | 26394 | 5.65 | 4.35 | 59 | G3IV | has a planet 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 Pi Mensae b Pi Mensae b , also known as HD 39091 b, is an extrasolar planet approximately 59 light-years away in the constellation of Mensa... ) |
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δ Men | δ | 6 | 28525 | 20049 | 5.67 | 0.19 | 408 | K2/K3III+.. | double star | ||
1 | 22676 | 16290 | 5.68 | 0.81 | 307 | G8III | |||||
ν Men | ν | 8 | 29116 | 20297 | 5.78 | 2.13 | 175 | F0/F2III | |||
WX Men | 26 | 37993 | 26169 | 5.79 | −1.74 | 1045 | M2/M3III | irregular variable Irregular variable An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub-types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three categories:... , |
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ξ Men | ξ | 21 | 34172 | 23148 | 5.84 | 0.69 | 349 | G8III | |||
ι Men | ι | 28 | 38602 | 26264 | 6.04 | −0.90 | 795 | B8III | rotating ellipsoidal variable Rotating ellipsoidal variable Rotating ellipsoidal variables are a class of variable star. They are close binary systems whose components are ellipsoidal. They are not eclipsing, but fluctuations in apparent magnitude occur due to changes in the amount of light emitting area visible to the observer... , |
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13 | 30479 | 21611 | 6.05 | −0.46 | 655 | K2III | |||||
31 G. Men | 31 | 39780 | 25776 | 6.18 | 1.03 | 349 | A1III + B9V: | TZ Men; Algol variable Algol variable Algol variables or Algol-type binaries are a class of eclipsing binary stars where the orbital plane of the stars are coincident with the line of sight from Earth. When the cooler component passes in front of the hotter one, part of the latter's light is blocked, and the total brightness of the... , |
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20 | 33875 | 23737 | 6.26 | 0.69 | 423 | A0V | |||||
15 | 31975 | 22717 | 6.28 | 3.72 | 106 | F8V | |||||
3 | 23474 | 16827 | 6.29 | −0.65 | 795 | K2III | |||||
19 | 33519 | 23251 | 6.29 | −1.30 | 1072 | K5/M0III | optical double 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... |
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22 | 35184 | 24507 | 6.49 | 1.28 | 359 | A6V | |||||
λ Men | λ | 30 | 39810 | 27369 | 6.54 | 1.17 | 386 | K0III | |||
27 G. Men | 27 | 38283 | 26380 | 6.70 | 123 | F9.5V | has a planet (b) | ||||
W Men W Mensae W Mensae is a variable star in the southern constellation Mensa. The star is classified as a yellow-white supergiant .... |
13.8 | F8:Iab:p | R CrB variable R Coronae Borealis variable A R Coronae Borealis variable is an eruptive variable star that varies in luminosity in two modes, one low amplitude pulsation , and one irregular unpredictably sudden fading by 1 to 9 magnitudes... in LMC Large Magellanic Cloud The Large Magellanic Cloud is a nearby irregular galaxy, and is a satellite of the Milky Way. At a distance of slightly less than 50 kiloparsecs , the LMC is the third closest galaxy to the Milky Way, with the Sagittarius Dwarf Spheroidal and Canis Major Dwarf Galaxy lying closer to the center... , |