HD 114783

HD 114783
Observationsdata
Epok: J2000.0
StjärnbildJungfrun
Rektascension13t 12m 43,7856s[1]
Deklination-02° 15′ 54,1299″[1]
Skenbar magnitud ()+7,56 (V)[2]
Stjärntyp
SpektraltypK0 V[2]
B–V+0,93[2]
Astrometri
Radialhastighet ()-11,97 ± 0,09[2] km/s
Egenrörelse (µ)RA: -138,403 ± 0,109[1] mas/år
Dek.: +10,228 ± 0,070[1] mas/år
Parallax ()47,4482 ± 0,0637[1]
Avstånd68,74 ± 0,09 lå (21,08 ± 0,03 pc)
Absolut magnitud ()6,00[2]
Detaljer
Radie0,75[2] R☉
Luminositet0,44[2] L☉
Temperatur5 127[2] K
Metallicitet+0,11 ± 0,01 (Fe/H)[2] dex
Andra beteckningar
HD 114783, AG-02 787, BD-01 2784, GJ 3769, GSC 04958-00894, HIC 64457, HIP 64457, 2MASS J13124377-0215540, PPM 178986, SAO 139218, TYC 4958-894-1, uvby98 100114783, Gaia DR2 3684934540986187776 [3]

HD 114783 är en ensam stjärna belägen i den mellersta delen av stjärnbilden Jungfrun. Den har en skenbar magnitud av ca 7,56[2] och kräver åtminstone en handkikare för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 47,4[1] mas, beräknas den befinna sig på ett avstånd på ca 69 ljusår (ca 21 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -12 km/s.[2]

Egenskaper

HD 114783 är en orange till gul stjärna i huvudserien av spektralklass K0 V.[2] Den har en radie som är ca 0,8[2] solradier och har ca 0,5 gånger solens utstrålning av energi[2] från dess fotosfär vid en effektiv temperatur av ca 5 100 K.[2]

Planetsystem

År 2001 fann California and Carnegie Planet Search team en exoplanet i omlopp kring HD 114783. Upptäckten gjordes vid Keckobservatoriet.[4]

HD 114783 solsystem[5]
Planet
Massa
Halv storaxel
(AE)
Siderisk omloppstid
(d)
Excentricitet
Inklination
Radie
b
>1,034±0,0,089 MJ
1,169±0,068
496,9±2,3
0,085±0,033
-
-

Se även

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 114783, 9 juli 2020.

Noter

  1. ^ [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ [a b c d e f g h i j k l m n o] https://www.universeguide.com/star/64457/hd114783. Hämtad 2020-07-09.
  3. ^ http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+114783 . Hämtad 2020-07-09.
  4. ^ Vogt, Steven S.; et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal. 568 (1): 352–362. arXiv:astro-ph/0110378. Bibcode:2002ApJ...568..352V. doi:10.1086/338768.
  5. ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.

Externa länkar

v • r
Stjärnor i Jungfrun
Bayer
Flamsteed
4 Virginis  · 6 Virginis  · 7 Virginis  · 10 Virginis · 11 Virginis · 12 Virginis · 13 Virginis · 14 Virginis · 16 Virginis  · 17 Virginis  · 20 Virginis · 21 Virginis · 25 Virginis · 27 Virginis · 28 Virginis · 31 Virginis · 32 Virginis · 33 Virginis · 34 Virginis · 35 Virginis · 37 Virginis · 38 Virginis · 39 Virginis · 41 Virginis · 44 Virginis · 46 Virginis · 48 Virginis · 49 Virginis · 50 Virginis · 53 Virginis · 54 Virginis · 55 Virginis · 56 Virginis · 57 Virginis · 58 Virginis · 59 Virginis  · 61 Virginis  · 62 Virginis · 63 Virginis · 64 Virginis · 65 Virginis · 66 Virginis · 68 Virginis · 69 Virginis  · 70 Virginis  · 71 Virginis · 72 Virginis · 73 Virginis · 74 Virginis  · 75 Virginis · 76 Virginis · 77 Virginis · 78 Virginis  · 80 Virginis · 81 Virginis · 82 Virginis · 83 Virginis · 84 Virginis · 85 Virginis · 86 Virginis · 87 Virginis · 88 Virginis · 89 Virginis  · 90 Virginis · 92 Virginis · 94 Virginis · 95 Virginis · 97 Virginis · 103 Virginis · 104 Virginis · 106 Virginis · 108 Virginis · 109 Virginis  · 110 Virginis  · 1 Serpentis  · 2 Serpentis
Variabler
HD
Övriga

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