HD 41004

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Double star
HD 41004 A
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation painter
Right ascension 05 h 59 m 49.65 s
declination -48 ° 14 ′ 22.9 ″
Apparent brightness 8.65 likes
Typing
Known exoplanets 1
Spectral class K2 V
Astrometry
Radial velocity (42.5 ± 0.5) km / s
parallax (24.53 ± 0.84)  mas
distance (133.0 ± 4.6)  ly
(40.8 ± 1.4)  pc  
Visual absolute brightness M vis +5.60 mag
Proper movement 
Rec. Share: (−42.39 ± 1.00)  mas / a
Dec. portion: (65.58 ± 0.93)  mas / a
Physical Properties
Dimensions 0.7  M ☉
Effective temperature 5035  K
Metallicity [Fe / H] −0.09
Age 1.64 x 10 9  a
Other names
and catalog entries
Cordoba Survey CD −48 2083
Henry Draper Catalog HD 41004 [1]
Hipparcos catalog HIP 28393 [2]
SAO catalog SAO 217660 [3]
Tycho catalog TYC 8092-538-1 [4]Template: Infobox star / maintenance / specification of the TYC catalog
annotation
  1. ↑ Calculated from apparent brightness and distance.

HD 41004 A is a 138.68 light-years distant late main sequence star with a right ascension of 05h 59m 49s and a declination of −48 ° 14 '22 ". It has an apparent magnitude of 8.65 mag.

In 2004 S. Zucker discovered an extrasolar planet orbiting this star. This is called HD 41004 Ab . There is also a second star in this system, a red dwarf named HD 41004 B , orbiting HD 41004 A. This makes this system a double star .

Web links

Individual evidence

  1. ↑ a b c Hipparcos catalog (ESA 1997)
  2. ↑ Pulkovo radial velocities for 35493 HIP stars
  3. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)