V539 Arae

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"Nu1 Arae" redirects here. For other star systems with this Bayer designation, see Nu Arae.
V539 Arae
Diagram showing star positions and boundaries of the Ara constellation and its surroundings
The location of V539 Arae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 50m 28.39341s[1]
Declination –53° 36′ 44.6701″[1]
Apparent magnitude (V) 5.62[2]
Characteristics
Spectral type B2 V + B3 V + A1 V[2]
U−B color index –0.64
B−V color index –0.08
Variable type Algol variable
Distance
approx. 1,000 ly
(approx. 300 pc)
Absolute magnitude (MV)–1.83/–1.11[4]
Details
ν1 Ara A
Rotational velocity (v sin i)
130[3] km/s
HIP 87314, HR 6622, SAO 245065.[6]
Database references
SIMBADAB
A

V539 Arae (

triple star system in the southern constellation of Ara. Based upon an annual parallax shift of 3.30 ± 0.47,[1] this system is at a distance of roughly 1,000 light-years (310 parsecs
) from Earth.

A visual band light curve for V539 Arae, adapted from Knipe (1971)[7]

The core members of this system, ν1 Ara AB, consist of a pair of

arcseconds, is the tertiary component of this system; a magnitude 9.40 A-type main-sequence star with a classification of A1 V.[2]

The system is sometimes referred as Upsilon1 Arae (υ1 Arae), and more generally unlettered.[9]

References

  1. ^
    S2CID 18759600
    .
  2. ^
    S2CID 14878976
    .
  3. ^
    Bibcode:1953GCRV..C......0W
    .
  4. ^
    S2CID 14006009
    .
  5. S2CID 118629873
    .
  6. ^ a b "V* V539 Ara". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-07-31.
  7. Bibcode:1971A&A....14...70K
    . Retrieved 25 October 2021.
  8. hdl:10995/73280
    .
  9. ^ Note for HR 6622: Hoffleit, D., Warren, Jr., W. H., (1991). The Bright Star Catalogue, (5th Revised Ed).

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=V539_Arae&oldid=1184252566"