HD 74156 c

{{Infobox planet

| name = HD 74156 c

| discoverer = Dominique Naef, Michel Mayor et al.

| discovery_site = California

| discovered = Apr 4, 2001

| discovery_method = Radial velocity

| orbit_ref =

| apsis = astron

| semimajor = {{val|3.678|0.145|0.159|ul=AU}}

| eccentricity = {{val|0.377|0.006}}

| period = {{convert|2448.5|±|4.2|d|yr|lk=on}}

| time_periastron = {{val|2448568.530|13.016|11.742}}

| arg_peri = {{val|271.934|1.178|1.505|u=deg}}

| semi-amplitude = {{val|113.940|0.974|1.099|ul=m/s}}

| star = HD 74156

| inclination = {{val|120.162|7.601|66.225|u=deg}}

| asc_node = {{val|210.652|7.606|42.039|u=deg}}

| physical_ref =

| mass = {{val|8.665|1.385|0.470|ul=Jupiter mass}}

}}

HD 74156 c is an extrasolar planet with a minimum mass about eight times that of Jupiter orbiting the star HD 74156. It is most likely a gas giant. This planet was discovered by Dominique Naef and Michel Mayor in April 2001 together with the planet HD 74156 b. In 2022, the inclination and true mass of HD 74156 c were measured via astrometry.

References

{{reflist|refs=

{{cite press release | title=Exoplanets: The Hunt Continues! | date=April 4, 2001 | publisher=European Southern Observatory | location=Garching, Germany | url=http://www.eso.org/public/news/eso0114/ | accessdate=December 27, 2012 }}

{{cite journal

| journal=Astronomy and Astrophysics

| title=The ELODIE survey for northern extra-solar planets. III. Three planetary candidates detected with ELODIE

| url=http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2004/04/aa0091.pdf

| volume=414

| issue=1

| pages=351–359

| year=2004

| doi=10.1051/0004-6361:20034091

| last1=Naef |first1=Dominique

| last2=Mayor |first2=Michel

| last3=Beuzit |first3=Jean-Luc

| last4=Perrier |first4=Christian

| last5=Queloz |first5=Didier

| last6=Sivan |first6=Jean-Pierre

| last7=Udry |first7=Stéphane

| bibcode=2004A&A...414..351N

|arxiv = astro-ph/0310261 | s2cid=16603563

}}

{{cite journal |last1=Feng |first1=Fabo |last2=Butler |first2=R. Paul |display-authors=etal |date=August 2022 |title=3D Selection of 167 Substellar Companions to Nearby Stars |journal=The Astrophysical Journal Supplement Series |volume=262 |issue=21 |page=21 |doi=10.3847/1538-4365/ac7e57 |arxiv=2208.12720 |bibcode=2022ApJS..262...21F|s2cid=251864022 |doi-access=free }}

}}

Category:Hydra (constellation)

Category:Giant planets

Category:Exoplanets discovered in 2001

Category:Exoplanets detected by radial velocity

Category:Exoplanets detected by astrometry