Asellus australis

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Star
Asellus australis (δ Cancri)
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation cancer
Right ascension 08 h 44 m 41.1 s
declination + 18 ° 09 ′ 15.5 ″
Apparent brightness 3.94 likes
Typing
B − V color index (1.08) 
U − B color index (0.99) 
R − I index (0.54) 
Spectral class K0 + IIIb
Astrometry
Radial velocity (17.14 ± 0.19) km / s
parallax (24.63 ± 0.31)  mas
distance (132 ± 2)  ly
(40)  pc
Proper movement 
Rec. Share: (−17.67 ± 0.27)  mas / a
Dec. portion: (−229.26 ± 0.18)  mas / a
Physical Properties
Effective temperature (4700)  K
Other names
and catalog entries
Bayer name δ Cancri
Flamsteed name 47 Cancri
Bonn survey BD + 18 ° 2027
Bright Star Catalog HR 3461 [1]
Henry Draper Catalog HD 74442 [2]
Hipparcos catalog HIP 42911 [3]
SAO catalog SAO 98087 [4]
Tycho catalog TYC 1396-2758-1 [5]
2MASS catalog 2MASS J08444109 + 1809158 [6]
Other names Asellus australis, FK5 326

Asellus Australis (Latin for "southern donkey ") is the proper name of the star δ Cancri (Delta Cancri) in the constellation Cancer . It belongs to the spectral class K0 and has an apparent brightness of +3.9 mag.

Asellus Australis is about 130 light years from Earth . He may as ekliptiknaher star from the moon and (very rarely) by planets covered are.

In Greek mythology , Asellus Australis (second brightest fixed star in Cancer) and the somewhat weaker Asellus Borealis ( northern donkey ) represent the two pack animals that carried the god Dionysus over a river on one of his wanderings through the Middle East and were moved to thank heaven . They stand there on both sides of the shimmering star cluster of the crib ( Praesepe or M44 ) and enjoy the food.

See also

Web links

Individual evidence

  1. ↑ a b c d e f g h i j del Cnc. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 15, 2018 .