astro.wikisort.org - Star

Search / Calendar

ADS 16402 is a binary star system, composed of two sun-like stars located approximately 525 light-years away in the constellation Lacerta. It was first identified as a binary star by John Herschel in 1831.[4] The two stars are separated by 11.26 arcseconds which leads to a projected separation of roughly 1500 astronomical units at the distance of ADS 16402. The star system is estimated to be 1.9 ± 0.6 billion years old.[7] The secondary star ADS 16402 B is also designated HAT-P-1.

ADS 16402
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lacerta[1]
ADS 16402 A
Right ascension 22h 57m 45.9211s[2]
Declination +38° 40′ 27.198″[2]
Apparent magnitude (V) +10.0[3]
ADS 16402 B (HAT-P-1)
Right ascension 22h 57m 46.8443s[2]
Declination +38° 40′ 30.355″[2]
Apparent magnitude (V) +10.4[3]
Characteristics
ADS 16402 A
Spectral type F8[3]/G0V[4]
Apparent magnitude (J) 8.670±0.021[5]
Apparent magnitude (H) 8.467±0.044[5]
Apparent magnitude (K) 8.405±0.020[5]
ADS 16402 B (HAT-P-1)
Spectral type F8[3]/G0V[4]
Apparent magnitude (J) 9.156±0.026[5]
Apparent magnitude (H) 8.923±0.030[5]
Apparent magnitude (K) 8.858±0.018[5]
Astrometry
ADS 16402 A
Radial velocity (Rv)−3.43 ± 0.32[4] km/s
Proper motion (μ) RA: 32.128±0.042[2] mas/yr
Dec.: −41.969±0.044[2] mas/yr
Parallax (π)6.1989 ± 0.0387 mas[2]
Distance526 ± 3 ly
(161 ± 1 pc)
Absolute magnitude (MV)3.4 ± 0.3[4]
ADS 16402 B (HAT-P-1)
Radial velocity (Rv)−2.94 ± 0.56[4] km/s
Proper motion (μ) RA: 32.384±0.041[2] mas/yr
Dec.: −41.751±0.044[2] mas/yr
Parallax (π)6.2615 ± 0.0381 mas[2]
Distance521 ± 3 ly
(159.7 ± 1.0 pc)
Absolute magnitude (MV)3.7 ± 0.3[4]
Details
ADS 16402 A
Mass1.16 ± 0.11[4] M☉
Radius1.123 +0.14
−0.10[4] R☉
Luminosity1.82 +0.75
−0.53[4] L☉
Surface gravity (log g)4.36 ± 0.03[6] cgs
Temperature6251 ± 17[6] K
Metallicity [Fe/H]0.146 ± 0.014[6] dex
Rotational velocity (v sin i)7.1 ± 0.3[4] km/s
Age1.9 ± 0.6[7] Gyr
ADS 16402 B (HAT-P-1)
Mass1.151 +0.052
−0.051[8] M☉
Radius1.174 +0.026
−0.027[8] R☉
Luminosity1.585 +0.099
−0.094[8] L☉
Surface gravity (log g)4.43 ± 0.02[6] cgs
Temperature6049 ± 8[6] K
Metallicity [Fe/H]0.155 ± 0.007[6] dex
Rotational velocity (v sin i)2.2 ± 0.2[4] km/s
Age1.9 ± 0.6[7] Gyr
Position (relative to ADS 16402 A)
Angular distance11.26 ± 0.03″ [9]
Other designations
HJ 1832, CCDM J22578+3840, WDS J22578+3840[3]
ADS 16402 A: BD+37 4734p, PPM 88381[3]
ADS 16402 B: HAT-P-1, BD+37° 4734s, PPM 88382[3]
Database references
SIMBADADS 16402
ADS 16402 A
HAT-P-1

Planetary system


On September 14, 2006 the HATNet Project announced their first extrasolar planet discovery HAT-P-1b, a hot jupiter type gas giant in orbit around the secondary star ADS 16402B. Following the designation scheme used by the HATNet Project, the secondary star is known as HAT-P-1, and the planet itself designated HAT-P-1b.[4][10]

The HAT-P-1 planetary system[11][8]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 0.529 ± 0.020 MJ 0.05561 ± 0.00083 4.4652968 ± 0.0000018 0 85.634 ± 0.056° 1.319 ± 0.019 RJ

See also



References


  1. Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
  2. 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 Data Release 2 catalog entry for ADS 16402 A Gaia Data Release 2 catalog entry for ADS 16402 B
  3. "ADS16402". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-05-10.
  4. Bakos, G. Á.; et al. (2007). "HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting One Member of a Stellar Binary". The Astrophysical Journal. 656 (1): 552–559. arXiv:astro-ph/0609369. Bibcode:2007ApJ...656..552B. doi:10.1086/509874.
  5. Skrutskie, Michael F.; et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131: 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Vizier catalog entry for A Vizier catalog entry for B
  6. Liu, F.; et al. (2014). "A high-precision chemical abundance analysis of the HAT-P-1 stellar binary: constraints on planet formation". Monthly Notices of the Royal Astronomical Society. 442 (1): L51–L55. arXiv:1404.2112. Bibcode:2014MNRAS.442L..51L. doi:10.1093/mnrasl/slu055.
  7. Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
  8. Nikolov, N.; et al. (2014). "Hubble Space Telescope hot Jupiter transmission spectral survey: a detection of Na and strong optical absorption in HAT-P-1b". Monthly Notices of the Royal Astronomical Society. 437 (1): 46–66. arXiv:1310.0083. Bibcode:2014MNRAS.437...46N. doi:10.1093/mnras/stt1859.
  9. Faedi, F.; et al. (2013). "Lucky imaging of transiting planet host stars with LuckyCam". Monthly Notices of the Royal Astronomical Society. 433 (3): 2097–2106. arXiv:1305.3795. Bibcode:2013MNRAS.433.2097F. doi:10.1093/mnras/stt885.
  10. Aguilar, David A.; Pulliam, Christine (September 14, 2006). "Strange New Planet Baffles Astronomers" (Press release). Cambridge, Massachusetts: Harvard–Smithsonian Center for Astrophysics. Retrieved November 18, 2016.
  11. Turner, Jake D.; et al. (2016). "Ground-based near-UV observations of 15 transiting exoplanets: constraints on their atmospheres and no evidence for asymmetrical transits". Monthly Notices of the Royal Astronomical Society. 459 (1): 789–819. arXiv:1603.02587. Bibcode:2016MNRAS.459..789T. doi:10.1093/mnras/stw574.



На других языках

[de] ADS 16402

ADS 16402 ist der Name eines Doppelsternsystems im Sternbild Eidechse. Die Sterne des Systems, ADS 16402 A und ADS 16402 B, gehören beide zur Spektralklasse G0 und sind etwa 450 Lichtjahre von der Erde entfernt. Die Komponente A hat eine scheinbare Helligkeit von 10,0 mag, Komponente B von 10,4 mag. Der Winkelabstand der Sterne beträgt 11",2, was einer Entfernung von etwa 1600 AE entspricht. Das Alter beider Sonnen wird auf 3,6 Milliarden Jahre geschätzt. ADS 16402 B wird von einem Exoplaneten umrundet und ist in diesem Zusammenhang auch als HAT-P-1 bekannt.
- [en] ADS 16402

[es] ADS 16402

ADS 16402 (BD+37 4734 / SAO 72884) es una estrella binaria situada a unos 450 años luz del Sistema Solar en dirección a la constelación de Lacerta. En el año 2006 se descubrió un planeta extrasolar orbitando alrededor de una de las componentes, al observarse su tránsito astronómico. Se detectó por primera vez por un descenso del 0,6% en el brillo de la misma.

[ru] ADS 16402

ADS 16402 — двойная звёздная система, состоящая из двух солнцеподобных звёзд, расположенных в 450 световых годах в созвездии Ящерицы. Эти две звезды удалены друг от друга на 1500 астрономических единиц. Оценочно звёздной системе 3,6 миллиарда лет[1]. Вторая звезда — ADS 16402 B, также обозначается как HAT-P-1.


Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии