Zeta Phoenicis

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Multiple star
ζ Phoenicis
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Phoenix
Right ascension 01 h 08 m 23.08 s
declination -55 ° 14 ′ 44.7 ″
Apparent brightness 4.01 (3.94 to 4.42) mag
Typing
B − V color index −0.08 
U − B color index −0.41 
R − I index −0.12 
Spectral class B6 V + B9 V
Variable star type EA / DM 
Astrometry
Radial velocity (15.3 ± 2.7) km / s
parallax (10.92 ± 0.39)  mas
distance (299 ± 11)  ly
(91.6 ± 3.3)  pc  
Visual absolute brightness M vis −0.87 mag
Proper movement 
Rec. Share: (20.87 ± 0.36)  mas / a
Dec. portion: (30.64 ± 0.38)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name ζ Phoenicis
Cordoba Survey CD -55 ° 267
Bright Star Catalog HR 338 [1]
Henry Draper Catalog HD 6882 [2]
Hipparcos catalog HIP 5348 [3]
SAO catalog SAO 232306 [4]
Tycho catalog TYC 8476-1302-1 [5]Template: Infobox star / maintenance / specification of the TYC catalog
2MASS catalog 2MASS J01082304-5514447 [6]
Other names Growling
annotation
  1. ↑ Calculated from apparent brightness and distance.

Zeta Phoenicis (ζ Phe) is an eclipse-variable star of the Algol type in the constellation Phoenix, 280 light years from Earth . Its apparent brightness fluctuates with a period of 1.66977 days between 3.9 mag and 4.4 mag. The minimum brightness is always passed through when a faint, invisible companion passes in front of the main star. As a multiple star , Zeta Phoenicis has two other companions, easily recognizable with a central telescope , which are 7.2 mag and 8.2 mag bright and are at a distance of 0.8 "and 6.4" from the main star.

The star was on 17 November 2017 the IAU 's name Wurren given.

literature

  • The Brockhaus. Astronomy . 2006, p. 334.

Individual evidence

  1. ↑ a b c zet Phe. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on August 1, 2019 .
  2. ↑ a b zet Phe. In: VSX. AAVSO , accessed August 1, 2019 .
  3. ↑ a b c Bright Star Catalog
  4. ↑ Pulkovo radial velocities for 35493 HIP stars
  5. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
  6. ↑ Naming Stars. IAU, accessed August 1, 2019 .