HD 27631 b

{{Short description|Extrasolar planet in the constellation Horologium}}

{{Infobox planet

| name = HD 27631 b

| discovery_ref =

| discoverer = Marmier et al.

| discovery_site = HARPS

| discovered = Sept. 13, 2011

| discovery_method = Doppler spectroscopy

| orbit_ref =

| apsis = astron

| semimajor = {{val|3.22|0.065|0.064|ul=AU}}

| eccentricity = {{val|0.163|0.057}}

| period = {{val|2173|47|44|ul=d}}
{{val|5.95|0.13|0.12|ul=yr}}

| inclination = {{val|74|11|15|u=deg}} or {{val|106|15|11|u=deg}}

| asc_node = {{val|91|63|66|u=deg}}

| time_periastron = {{val|2456110|158|147}}

| arg_peri = {{val|128|28|27|u=deg}}

| star = HD 27631

| physical_ref =

| mass = {{val|1.56|0.2|0.15|ul=Jupiter mass}}

}}

HD 27631 b is an extrasolar planet that has more mass than Jupiter. It orbits 3.25 AU from the star, taking six years to revolve around the parent star HD 27631. Its orbit is eccentric, around 12%. In 2023, the inclination and true mass of HD 27631 b were determined via astrometry.

References

{{Reflist|refs=

{{cite journal | title=The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets | last1=Marmier | first1=M. | last2=Ségransan | first2=D. | last3=Udry | first3=S. | last4=Mayor | first4=M. | last5=Pepe | first5=F. | last6=Queloz | first6=D. | last7=Lovis | first7=C. | last8=Naef | first8=D. | last9=Santos | first9=N. C. | last10=Alonso | first10=R. | last11=Alves | first11=S. | last12=Berthet | first12=S. | last13=Chazelas | first13=B. | last14=Demory | first14=B.-O. | last15=Dumusque | first15=X. | last16=Eggenberger | first16=A. | last17=Figueira | first17=P. | last18=Gillon | first18=M. | last19=Hagelberg | first19=J. | last20=Lendl | first20=M. | last21=Mardling | first21=R. A. | last22=Mégevand | first22=D. | last23=Neveu | first23=M. | last24=Sahlmann | first24=J. | last25=Sosnowska | first25=D. | last26=Tewes | first26=M. | last27=Triaud | first27=A. H. M. J. | display-authors=1 | journal=Astronomy and Astrophysics | volume=551 | at=A90 | date=2013 | arxiv=1211.6444 | bibcode=2013A&A...551A..90M | doi=10.1051/0004-6361/201219639 | s2cid=59467665 }}

{{cite journal |last1=Xiao |first1=Guang-Yao |last2=Liu |first2=Yu-Juan |display-authors=etal |date=March 2023 |title=The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements |journal=Research in Astronomy and Astrophysics |volume= |issue= |pages= |doi= |arxiv=2303.12409}}

}}

External links

{{cite web | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+27631 | title=HD 27631 | work=Exoplanets | access-date=2012-11-29 | archive-url=https://web.archive.org/web/20161130004120/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+27631 | archive-date=2016-11-30 | url-status=dead }}

Category:Exoplanets discovered in 2011

Category:Giant planets

Category:Horologium (constellation)

Category:Exoplanets detected by radial velocity

Category:Exoplanets detected by astrometry