| 释义 |
- Planetary system
- See also
- References
- External links
{{Starbox begin
| name = HD 17156 }}{{Starbox observe
| epoch = J2000
| ra = {{RA|02|49|44.4867}}[1]
| dec = {{DEC|+71|45|11.6322}}[1]
| appmag_v = 8.17[3]
| constell = Cassiopeia
}}{{Starbox character
| class = G0IV[4]
| appmag_1_passband = B
| appmag_1 = 8.76[3]
| appmag_2_passband = V
| appmag_2 = 8.17[3]
}}{{Starbox astrometry
| radial_v = −3.15 ± 0.20[7]
| prop_mo_ra = {{val|90.982|0.064}}[1]
| prop_mo_dec = {{val|−33.197|0.062}}[1]
| parallax = 12.7776
| p_error = 0.0389
| parallax_footnote = [1]
| absmag_v = 3.70
}}{{Starbox detail
| mass = 1.275 ± 0.018[11]
| radius = 1.5007 ± 0.0076[11]
| luminosity =
| temperature = 6079 ± 80[13]
| metal_fe = 0.24 ± 0.05[13]
| gravity =
| rotation =
| age_gyr = 3.37 {{±|0.20|0.47}}[11]
}}{{Starbox catalog
| names = BD+71°171, HIP 13192, SAO 4737, GSC 04321-01320, PPM 5099, TYC 4321-1320-1, AG+71 95 [3]
}}{{Starbox reference
| Simbad = HD+17156
| EPE = HD+17156
}}{{Starbox end}}HD 17156 is a yellow subgiant star approximately 255 light-years away in the constellation of Cassiopeia. The apparent magnitude is 8.17, which means it is not visible to the naked eye but can be seen with good binoculars.[3] A search for a binary companion star using adaptive optics at the MMT Observatory was negative.The star is more massive and larger than our Sun while Its absolute magnitude of 3.70 and spectral type of G0, show that it is both hotter and more luminous. Based on asteroseismic density constraints and stellar isochrones, it was found that the age is 3.37 {{±|0.20|0.47}} billion years making it about two thirds as old as the sun. Spectral observations show that the star is metal-rich.[4][11] An extrasolar planet was discovered with the radial velocity method in 2007, it was subsequently discovered to transit the star. At the time it was the transiting planet with the longest period.[4][22] Planetary systemIt is the first star in Cassiopeia around which an orbiting planet was discovered (in 2007) using the radial velocity method. Later observations showed that this planet also transited the star.[22] In February 2008, a second planet, HD 17156 c, was proposed, with a 5:1 mean motion resonance to the inner planet HD 17156 b.[24] {{OrbitboxPlanet begin
| table_ref = [11][26][24]
}}{{OrbitboxPlanet
| exoplanet = b
| mass = {{val|3.235|0.032}}
| period = 21.2163979 ± 0.0000159
| semimajor = {{val|0.16278|0.00076}}
| eccentricity = {{val|0.6703|0.0014|0.0013}}
}}{{OrbitboxPlanet hypothetical
| exoplanet = c
| mass = 0.063
| period = 111.314
| semimajor = 0.481
| eccentricity = 0.136
}}{{Orbitbox end}}See also- List of stars with extrasolar planets
References1. ^1 2 {{cite journal | title=HD 17156b: A Transiting Planet with a 21.2 Day Period and an Eccentric Orbit | url=http://www.aanda.org/articles/aa/full/2007/47/aa8787-07/aa8787-07.html | last1=Barbieri | first1=M. | last2=Alonso | first2=R. | last3=Laughlin | first3=G. | last4=Almenara | first4=J. M. | last5=Bissinger | first5=R. | last6=Davies | first6=D. | last7=Gasparri | first7=D. | last8=Guido | first8=E. | last9=Lopresti | first9=C. | last10=Manzini | first10=F. | last11=Sostero | first11=G. | display-authors=1 | journal=Astronomy and Astrophysics Letters | volume=476 | issue=2 | pages=L13–L16 | date=2007 | arxiv=0710.0898 | bibcode=2007A&A...476L..13B | doi=10.1051/0004-6361:20078787 }}
2. ^1 {{cite journal | title=Characterization of the HD 17156 planetary system | url=http://www.aanda.org/articles/aa/full_html/2009/32/aa11466-08/aa11466-08.html | last1=Barbieri | first1=M. | last2=Alonso | first2=R. | last3=Desidera | first3=S. | last4=Sozzetti | first4=A. | last5=Fiorenzano | first5=A. F. Martinez | last6=Almenara | first6=J. M. | last7=Cecconi | first7=M. | last8=Claudi | first8=R. U. | last9=Charbonneau | first9=D. | last10=Endl | first10=M. | last11=Granata | first11=V. | last12=Gratton | first12=R. | last13=Laughlin | first13=G. | last14=Loeillet | first14=B. | display-authors=1 | journal=Astronomy and Astrophysics | volume=503 | issue=2 | pages=601–612 | year=2009 | arxiv=0812.0785 | bibcode=2009A&A...503..601B | doi=10.1051/0004-6361/200811466 }}
3. ^1 {{cite journal | title=The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets | url=https://www.aanda.org/articles/aa/full_html/2017/06/aa29882-16/aa29882-16.html | last1=Bonomo | first1=A. S. | last2=Desidera | first2=S. | last3=Benatti | first3=S. | last4=Borsa | first4=F. | last5=Crespi | first5=S. | last6=Damasso | first6=M. | last7=Lanza | first7=A. F. | last8=Sozzetti | first8=A. | last9=Lodato | first9=G. | last10=Marzari | first10=F. | last11=Boccato | first11=C. | last12=Claudi | first12=R. U. | last13=Cosentino | first13=R. | last14=Covino | first14=E. | last15=Gratton | first15=R. | last16=Maggio | first16=A. | last17=Micela | first17=G. | last18=Molinari | first18=E. | last19=Pagano | first19=I. | last20=Piotto | first20=G. | last21=Poretti | first21=E. | last22=Smareglia | first22=R. | last23=Affer | first23=L. | last24=Biazzo | first24=K. | last25=Bignamini | first25=A. | last26=Esposito | first26=M. | last27=Giacobbe | first27=P. | last28=Hébrard | first28=G. | last29=Malavolta | first29=L. | last30=Maldonado | first30=J. | last31=Mancini | first31=L. | last32=Martinez Fiorenzano | first32=A. | last33=Masiero | first33=S. | last34=Nascimbeni | first34=V. | last35=Pedani | first35=M. | last36=Rainer | first36=M. | last37=Scandariato | first37=G. | display-authors=1 | journal=Astronomy and Astrophysics | volume=602 | at=A107 | year=2017 | arxiv=1704.00373 | bibcode=2017A&A...602A.107B | doi=10.1051/0004-6361/201629882 }}
4. ^1 2 3 {{cite journal | title=Five Intermediate-Period Planets from the N2K Sample | last1=Fischer | first1=Debra A. | last2=Vogt | first2=Steven S. | last3=Marcy | first3=Geoffrey W. | last4=Butler | first4=R. Paul | last5=Sato | first5=Bun’ei | last6=Henry | first6=Gregory W. | last7=Robinson | first7=Sarah | last8=Laughlin | first8=Gregory | last9=Ida | first9=Shigeru | last10=Toyota | first10=Eri | last11=Omiya | first11=Masashi | last12=Driscoll | first12=Peter | last13=Takeda | first13=Genya | last14=Wright | first14=Jason T. | last15=Johnson | first15=John A. | display-authors=1 | journal=The Astrophysical Journal | volume=669 | issue=2 | pages=1336–1344 | year=2007 | arxiv=0704.1191 | bibcode=2007ApJ...669.1336F | doi=10.1086/521869 }}
5. ^1 2 3 4 5 {{Cite Gaia DR2|545560867790611072}}
6. ^1 2 3 4 5 {{cite journal | title=Precise Estimates of the Physical Parameters for the Exoplanet System HD 17156 Enabled by Hubble Space Telescope Fine Guidance Sensor Transit and Asteroseismic Observations | last1=Nutzman | first1=Philip | last2=Gilliland | first2=Ronald L. | last3=McCullough | first3=Peter R. | last4=Charbonneau | first4=David | last5=Christensen-Dalsgaard | first5=Jørgen | last6=Kjeldsen | first6=Hans | last7=Nelan | first7=Edmund P. | last8=Brown | first8=Timothy M. | last9=Holman | first9=Matthew J. | display-authors=1 | journal=The Astrophysical Journal | volume=726 | issue=1 | at=3 | year=2011 | arxiv=1011.0440 | bibcode=2011ApJ...726....3N | doi=10.1088/0004-637X/726/1/3 }}
7. ^1 2 {{cite journal | title=Orbital Dynamics Of A Possible Second Planet In HD 17156 | last1=Short | first1=Donald | last2=Welsh | first2=William F. | last3=Orosz | first3=Jerome A. | last4=Windmiller | first4=Gur | display-authors=1 | year=2008 | arxiv=0803.2935 | bibcode=2008arXiv0803.2935S }}
8. ^1 2 3 4 5 {{cite simbad | title=HD 17156 | accessdate=2009-05-20 }}
9. ^1 2 {{cite journal | title=The Transit Light Curve Project. X. A Christmas Transit of HD 17156b | last1=Winn | first1=Joshua N. | last2=Holman | first2=Matthew J. | last3=Henry | first3=Gregory W. | last4=Torres | first4=Guillermo | last5=Fischer | first5=Debra | last6=Johnson | first6=John Asher | last7=Marcy | first7=Geoffrey W. | last8=Shporer | first8=Avi | last9=Mazeh | first9=Tsevi | display-authors=1 | journal=The Astrophysical Journal | volume=693 | issue=1 | pages=794–803 | year=2009 | arxiv=0810.4725 | bibcode=2009ApJ...693..794W | doi=10.1088/0004-637X/693/1/794 }}
[1][2][3][4][5][6][7][8][9]
}}External links- Extrasolar Planet Interactions by Rory Barnes & Richard Greenberg, Lunar and Planetary Lab, University of Arizona
- {{cite web
| url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+17156
| title=HD 17156
| work=Exoplanets
| accessdate=2009-05-20}}{{Sky|02|49|44.49|+|71|45|11.64|255.19}}{{Stars of Cassiopeia}} 7 : Cassiopeia (constellation)|Planetary transit variables|Planetary systems|G-type subgiants|Henry Draper Catalogue objects|Hipparcos objects|Durchmusterung objects |