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HD 128311 b

From Wikipedia, the free encyclopedia

HD 128311 b
Discovery
Discovered byButler et al.
Discovery siteUnited States California, United States
Discovery date2002
Doppler Spectroscopy
Orbital characteristics[1]
Apastron1.412 AU (211,200,000 km)
Periastron0.756 AU (113,100,000 km)
1.084 ± 0.006 AU (162,160,000 ± 900,000 km)
Eccentricity0.303±0.011
453.019 ± 0.404 d (1.24030 ± 0.00111 a)
26.2
Inclination>30
2450198.691±4.472
57.864±3.258
Semi-amplitude55.627±0.456
StarHD 128311
Physical characteristics[1]
Mass≥1.769±0.023 MJ

HD 128311 b is an exoplanet[2] located approximately 54 light-years away in the constellation of Boötes. This planet orbits in an eccentric orbit about 1.084 AU from its star (HD 128311). The planet has a minimum mass of 1.769 Jupiter masses.[3][1]

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Transcription

References

  1. ^ a b c McArthur, Barbara E.; et al. (2014). "Astrometry, Radial Velocity, and Photometry: The HD 128311 System Remixed with Data from HST, HET, and APT". The Astrophysical Journal. 795 (1): 41. Bibcode:2014ApJ...795...41M. doi:10.1088/0004-637X/795/1/41. S2CID 122980723.
  2. ^ Butler, R. Paul; et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal. 582 (1): 455–466. Bibcode:2003ApJ...582..455B. CiteSeerX 10.1.1.7.6988. doi:10.1086/344570. S2CID 17608922.
  3. ^ Vogt, Steven S.; et al. (2005). "Five New Multicomponent Planetary Systems" (PDF). The Astrophysical Journal. 632 (1): 638–658. Bibcode:2005ApJ...632..638V. doi:10.1086/432901. S2CID 16509245.

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This page was last edited on 22 December 2023, at 05:21
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