HD 196885 Ab

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

{{Infobox planet

| name = HD 196885 Ab

| discoverer = Correia et al.

| discovery_site = La Silla Observatory

| discovered = October 23, 2007

| discovery_method = Radial velocity

| apsis = astron

| aphelion = {{convert|3.36|AU|Gm|abbr=on}}

| perihelion = {{convert|1.24|AU|Gm|abbr=on}}

| semimajor = {{convert|2.30|AU|Gm|abbr=on}}

| eccentricity = 0.462

| period = 1349 d
3.693 y

| avg_speed = 18.6

| time_periastron = 2451236

| arg_peri = 91.4

| semi-amplitude = 39.5

| star = HD 196885 A

}}

HD 196885 Ab (also referred to as HD 196885 b) is a Jovian planet with a minimum mass 2.96 times the mass of Jupiter.{{cite encyclopedia|url=http://exoplanet.eu/star.php?st=HD+196885|archive-url=https://web.archive.org/web/20070702190954/http://exoplanet.eu/star.php?st=HD+196885|url-status=dead|archive-date=July 2, 2007|title=Notes for star HD 196885|author=Schneider, J.|encyclopedia=Extrasolar Planets Encyclopaedia|access-date=2008-08-19}} This planet was discovered on October 23, 2007. In 2022, the planet's inclination and true mass were measured via astrometry, showing it to be about {{Jupiter mass|3.39|link=y}}.

References

{{reflist|refs=

{{cite journal|bibcode=2008A&A...479..271C|title=The ELODIE survey for northern extra-solar planets. IV. HD 196885, a close binary star with a 3.7-year planet|author1=Correia, A. C. M. |author2=Udry, S. |author3=Mayor, M. |author4=Eggenberger, A. |author5=Naef, D. |author6=Beuzit, J.-L. |author7=Perrier, C. |author8=Queloz, D. |author9=Sivan, J.-P. |author10=Pepe, F. |author11=Santos, N. C. |author12=Ségransan, D. |year=2008|journal=Astronomy and Astrophysics|volume=479|issue=1|pages=271–275|doi=10.1051/0004-6361:20078908|arxiv=0711.3343 |s2cid=119261807 }}

{{cite arXiv |eprint=2211.00994|last1=Chauvin |first1=G. |last2=Videla |first2=M. |last3=Beust |first3=H. |last4=Mendez |first4=R. |last5=Correia |first5=A. C. M. |last6=Lacour |first6=S. |last7=Tokovinin |first7=A. |last8=Hagelberg |first8=J. |last9=Bouchy |first9=F. |last10=Boisse |first10=I. |last11=Villegas |first11=C. |last12=Bonavita |first12=M. |last13=Desidera |first13=S. |last14=Faramaz |first14=V. |last15=Forveille |first15=T. |last16=Gallenne |first16=A. |last17=Haubois |first17=X. |last18=Jenkins |first18=J. S. |last19=Kervella |first19=P. |last20=Lagrange |first20=A. -M. |last21=Melo |first21=C. |last22=Thebault |first22=P. |last23=Udry |first23=S. |last24=Segransan |first24=D. |title=Chasing extreme planetary architectures: I- HD196885Ab, a super-Jupiter dancing with two stars? |year=2022 |class=astro-ph.EP }}

}}

External links

{{cite web | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+196885 | title=HD 196885 | work=Exoplanets | access-date=2008-11-04 | archive-url=https://web.archive.org/web/20091125091126/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+196885 | archive-date=2009-11-25 | url-status=dead }}

Category:Exoplanets discovered in 2007

Category:Giant planets

Category:Delphinus

Category:Exoplanets detected by radial velocity

Category:Exoplanets detected by astrometry