ADS 16402

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ADS 16402
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lacerta[1]
ADS 16402 A
Right ascension 22h 57m 45.919s[2]
Declination +38° 40′ 27.19″[2]
Apparent magnitude (V) +10.0[3]
ADS 16402 B (HAT-P-1)
Right ascension 22h 57m 46.844s[2]
Declination +38° 40′ 30.33″[2]
Apparent magnitude (V) +10.4[3]
Characteristics
ADS 16402 A
Spectral type F8[3]/G0V[4]
ADS 16402 B (HAT-P-1)
Spectral type F8[3]/G0V[4]
Astrometry
ADS 16402 A
Radial velocity (Rv) −3.43 ± 0.32[4] km/s
Proper motion (μ) RA: 29.9 ± 0.6[2] mas/yr
Dec.: −42.5 ± 1.2[2] mas/yr
Distance 450+72
−62
ly
(139 +22
−19
[4] 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: 32.7 ± 0.8[2] mas/yr
Dec.: −43.2 ± 1.9[2] mas/yr
Distance 450+72
−62
ly
(139 +22
−19
[4] pc)
Absolute magnitude (MV) 3.7 ± 0.3[4]
Details
ADS 16402 A
Mass 1.16 ± 0.11[4] M
Radius 1.123 +0.14
−0.10
[4] R
Luminosity 1.82 +0.75
−0.53
[4] L
Surface gravity (log g) 4.36 ± 0.03[5] cgs
Temperature 6251 ± 17[5] K
Metallicity [Fe/H] 0.146 ± 0.014[5] dex
Rotational velocity (v sin i) 7.1 ± 0.3[4] km/s
Age 1.9 ± 0.6[6] Gyr
ADS 16402 B (HAT-P-1)
Mass 1.151 +0.052
−0.051
[7] M
Radius 1.174 +0.026
−0.027
[7] R
Luminosity 1.585 +0.099
−0.094
[7] L
Surface gravity (log g) 4.43 ± 0.02[5] cgs
Temperature 6049 ± 8[5] K
Metallicity [Fe/H] 0.155 ± 0.007[5] dex
Rotational velocity (v sin i) 2.2 ± 0.2[4] km/s
Age 1.9 ± 0.6[6] Gyr
Position (relative to ADS 16402 A)
Angular distance 11.26 ± 0.03 [8]
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
SIMBAD ADS 16402
ADS 16402 A
HAT-P-1

ADS 16402 is a binary star system, composed of two sun-like stars located 450 light-years away in the constellation Lacerta. It was first identified by John Herschel in 1831.[4] The two stars are separated by 1500 AUs. The star system is estimated to be 1.9 ± 0.6 billion years old.[6] The secondary star ADS 16402 B is also designated HAT-P-1.

Planetary system[edit]

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][9]

The HAT-P-1 planetary system[10][7]
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[edit]

References[edit]

  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. ^ a b c d e f g h Zacharias, N.; et al. (2013). "The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". The Astronomical Journal. 145 (2). 44. Bibcode:2013AJ....145...44Z. arXiv:1212.6182Freely accessible. doi:10.1088/0004-6256/145/2/44. Vizier catalog entry for ADS 16402A Vizier catalog entry for ADS 16402B
  3. ^ a b c d e f g "SIMBAD query result: ADS16402". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-10. 
  4. ^ a b c d e f g h i j k l m n o 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. Bibcode:2007ApJ...656..552B. arXiv:astro-ph/0609369Freely accessible. doi:10.1086/509874. 
  5. ^ a b c d e f 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. Bibcode:2014MNRAS.442L..51L. arXiv:1404.2112Freely accessible. doi:10.1093/mnrasl/slu055. 
  6. ^ a b c Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. Bibcode:2015A&A...575A..18B. arXiv:1411.4302Freely accessible. doi:10.1051/0004-6361/201424951. 
  7. ^ a b c d 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. Bibcode:2014MNRAS.437...46N. arXiv:1310.0083Freely accessible. doi:10.1093/mnras/stt1859. 
  8. ^ 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. Bibcode:2013MNRAS.433.2097F. arXiv:1305.3795Freely accessible. doi:10.1093/mnras/stt885. 
  9. ^ 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. 
  10. ^ 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. Bibcode:2016MNRAS.459..789T. arXiv:1603.02587Freely accessible. doi:10.1093/mnras/stw574. 

External links[edit]

  • "HAT-P-1". Exoplanets. Retrieved 2009-05-10. 

Coordinates: Sky map 22h 57m 47s, +38° 40′ 30″