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 | |
| ADS 16402 A: BD+37 4734p, PPM 88381[3] | |
| ADS 16402 B: HAT-P-1, BD+37 4734s, PPM 88382[3] | |
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
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]
| 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
- HATNet Project or HAT
References
- ↑ 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
- 1 2 3 4 5 6 7 8 Zacharias, N.; et al. (2013). "The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". The Astronomical Journal. 145 (2). 44. arXiv:1212.6182
. Bibcode:2013AJ....145...44Z. doi:10.1088/0004-6256/145/2/44.Vizier catalog entry for ADS 16402A Vizier catalog entry for ADS 16402B - 1 2 3 4 5 6 7 "SIMBAD query result: ADS16402". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-10.
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 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.
- 1 2 3 4 5 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.
- 1 2 3 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.
- 1 2 3 4 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.
- ↑ 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.
- ↑ 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.
- ↑ 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.
External links
- "HAT-P-1". Exoplanets. Retrieved 2009-05-10.
Coordinates: 
22h 57m 47s, +38° 40′ 30″
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