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HD 187123 b

{{Short description|Hot Jupiter orbiting HD 187123 in the constellation Cygnus}}

{{Infobox planet

| name = HD 187123 b

| image = HD_187123_b.png

| caption = The exoplanet HD 187123 b

| discoverer = Butler, Marcy,
Vogt, Apps et al.

| discovery_site = California, United States

| discovered = 9 September 1998

| discovery_method = radial velocity

| apsis = astron

| semimajor = {{val|0.04213|0.00034}} AU

| eccentricity = {{val|0.0093|0.0046}}

| period = {{val|3.0965828|0.0000043}} d

| time_periastron = {{val|2454342.87|0.30}}

| arg_peri = {{val|360|200}}

| semi-amplitude = {{val|68.91|0.36}}

| star = HD 187123

}}

HD 187123 b is a typical "hot Jupiter" located approximately 150 light-years away in the constellation of Cygnus, orbiting the star HD 187123. It has a mass about half that of Jupiter and it orbits in a very tight, round orbit around the star every three days.

The star has also been monitored for possible transits by the planet, but none was found.

The presence of water has been detected in the atmosphere of HD 187123 b with high confidence.

See also

References

{{Reflist|refs=

{{cite journal | title=A Planet with a 3.1 Day Period around a Solar Twin | last1=Butler | first1=R. Paul | last2=Marcy | first2=Geoffrey W. | last3=Vogt | first3=Steven S. | last4=Apps | first4=Kevin | display-authors=1 | journal=Publications of the Astronomical Society of the Pacific | volume=110 | issue=754 | pages=1389–1393 | year=1998 | bibcode=1998PASP..110.1389B | doi=10.1086/316287 | doi-access=free }}

{{cite journal | title=The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets | last1=Feng | first1=Y. Katherina | last2=Wright | first2=Jason T. | last3=Nelson | first3=Benjamin | last4=Wang | first4=Sharon X. | last5=Ford | first5=Eric B. | last6=Marcy | first6=Geoffrey W. | last7=Isaacson | first7=Howard | last8=Howard | first8=Andrew W. | display-authors=1 | journal=The Astrophysical Journal | volume=800 | issue=1 | at=22 | year=2015 | arxiv=1501.00633 | bibcode=2015ApJ...800...22F | doi=10.1088/0004-637X/800/1/22 | s2cid=56390823 }}

{{cite journal | title=Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems | last1=Wright | first1=J. T. | last2=Upadhyay | first2=S. | last3=Marcy | first3=G. W. | last4=Fischer | first4=D. A. | last5=Ford | first5=Eric B. | last6=Johnson | first6=John Asher | display-authors=1 | journal=The Astrophysical Journal | volume=693 | issue=2 | pages=1084–1099 | year=2009 | arxiv=0812.1582 | bibcode=2009ApJ...693.1084W | doi=10.1088/0004-637X/693/2/1084 | s2cid=18169921 }}

{{cite journal

| title=Simulating the Multi-epoch Direct Detection Technique to Isolate the Thermal Emission of the Non-transiting Hot Jupiter HD187123b

| last1=Buzard | first1=Cam | last2=Finnerty | first2=Luke

| last3=Piskorz | first3=Danielle | last4=Pelletier | first4=Stefan

| last5=Benneke | first5=Björn | last6=Bender | first6=Chad F.

| last7=Lockwood | first7=Alexandra C. | last8=Wallack | first8=Nicole L.

| last9=Wilkins | first9=Olivia H. | last10=Blake | first10=Geoffrey A.

| display-authors=1 | journal=The Astronomical Journal

| volume=160 | issue=1 | id=1 | pages=13 | date=July 2020

| doi=10.3847/1538-3881/ab8f9c | arxiv=2005.03020

| bibcode=2020AJ....160....1B | s2cid=218538482 | doi-access=free }}

}}

External links

  • {{cite encyclopedia | url=https://exoplanet.eu/catalog/hd_187123_b--6/ | encyclopedia=Extrasolar Planets Encyclopaedia | title=Notes for planet HD 187123 b | access-date=2008-08-25}}
  • {{cite web | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+187123 | title=HD 187123 | work=Exoplanets | accessdate=2008-08-25 | archive-url=https://web.archive.org/web/20091124160745/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+187123 | archive-date=2009-11-24 | url-status=dead }}

{{Sky|19|46|58.1130|+|34|25|10.288|156.28}}

{{DEFAULTSORT:Hd 187123 B}}

Category:Cygnus (constellation)

Category:Exoplanets discovered in 1998

Category:Giant planets

Category:Hot Jupiters

Category:Exoplanets detected by radial velocity

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