HD 11964

Coordinates: Sky map 01h 57m 09.6064s, −10° 14′ 32.739″
Source: Wikipedia, the free encyclopedia.
HD 11964
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cetus
Right ascension 01h 57m 09.6074s[1]
Declination −10° 14′ 32.7318″[1]
Apparent magnitude (V) 7.51[2]
Characteristics
Spectral type G9VCN+1[3][2] + M0.0Ve[4]
Apparent magnitude (U) 7.705[citation needed]
Apparent magnitude (B) 8.117[2]
Apparent magnitude (R) 5.960[citation needed]
Apparent magnitude (I) 6.914[2]
Apparent magnitude (J) 6.508±0.019[2]
Apparent magnitude (H) 6.265±0.031[2]
Apparent magnitude (K) 6.168±0.017[2]
U−B color index 0.450
B−V color index 0.607±0.015[2]
V−R color index 0.455
R−I color index 0.405
Variable type Suspected[citation needed]
Distance
109.5 ± 0.1 ly
(33.57 ± 0.04 pc)
Absolute magnitude (MV)3.84[2]
Details
A
dex
HIP 9094, SAO 148123, WDS 01572-1015[9]
Database references
Exoplanet Archive
data
ARICNSdata

HD 11964 is a

extrasolar planets
have been confirmed to orbit the primary.

Properties

The primary, component A, is a

luminosity of the Sun from its photosphere at an effective temperature of 5,321 K.[5]

A wide

″ along a position angle of 134°, as of 2015.[12] It is a red dwarf with a class of M0V,[4] and has just 0.6 times the Sun's radius. It is radiating 0.085 times the Sun's luminosity at an effective temperature of 4,033 K.[1]

Planetary system

In August 2005, two planets were discovered orbiting the star, the innermost like Neptune and another like Jupiter orbiting at 3.34 AU. However, the second planet (

Astrophysical Journal in 2009.[14]

The HD 11964 planetary system[14]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
c ≥ 0.11 MJ 0.229 37.82 0.15 — —
b ≥ 0.61±0.1 MJ 3.34±0.4 2,110±70 0.06±0.2 — —

See also

  • HD 11977
  • List of extrasolar planets

References

  1. ^
    doi:10.1051/0004-6361/201833051
    . Gaia DR2 records at VizieR:
  2. ^
    S2CID 119257644
    .
  3. ^
    S2CID 119476992
    .
  4. ^
    S2CID 53135130.[permanent dead link
    ]
  5. ^
    S2CID 53666931
    .
  6. ^
    S2CID 119206634
  7. ^
    S2CID 18370219
    .
  8. S2CID 118481247
    . 52.
  9. ^ "HD 11964". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-11-12.
  10. Bibcode:1999MSS...C05....0H
    .
  11. Bibcode:2000A&A...356..529A. Archived from the original
    on 2011-07-25. Retrieved 2008-10-07.
  12. doi:10.1086/323920
    . Retrieved 2015-07-22.
  13. S2CID 16796923
    .
  14. ^
    S2CID 18169921
    .

External links


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