Delta Indi

Source: Wikipedia, the free encyclopedia.
Delta Indi
Observation data
ICRS
)
Constellation Indus
Right ascension 21h 57m 55.07353s[1]
Declination −54° 59′ 33.2740″[1]
Apparent magnitude (V) +4.40[2] (4.80 + 5.96)[3]
Characteristics
Spectral type F0 IV + F0 IV[4]
U−B color index +0.10[2]
B−V color index +0.28[2]
Distance
188 ± 5 ly
(58 ± 2 pc)
Absolute magnitude (MV)+0.60[5]
Argument of periastron
(ω)
(secondary)		64.9±11.0°
Details
δ Ind A
Myr
δ Ind B
Mass1.33±0.16[4] M☉
HR 8368, SAO 247244, WDS J21579-5500AB[8]
Database references
SIMBADdata

Delta Indi,

light years from the Sun
.

The binary nature of this system was discovered by South African astronomer

subgiant stars. However, their estimated masses don't match this classification, so Docobo and Andrade (2013) suggest the Hipparcos parallax may have been underestimated.[4]

References

  1. ^
    S2CID 18759600
    .
  2. ^
    Bibcode:1978A&AS...34....1N
    .
  3. ^
    doi:10.1051/0004-6361/201219774
    , A69.
  4. ^
    doi:10.1093/mnras/sts045, archived from the original
    on 2014-12-05.
  5. ^
    S2CID 119257644
    .
  6. ^
    S2CID 33401607
    .
  7. S2CID 119273474
    .
  8. ^ "del Ind". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-08-18.{{cite web}}: CS1 maint: postscript (link)
  9. Bibcode:1956MNSSA..15...49F
    .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Delta_Indi&oldid=1079521986"