HD 159868 b

{{short description|Extrasolar jovian planet that orbits HD 159868 in the constellation Scorpius}}

{{Infobox planet

| name = HD 159868 b

| discoverer = O'Toole et al.

| discovered = February 9, 2007

| discovery_method = radial velocity

| apsis = astron

| semimajor = {{convert|2.25|±|0.03|AU|Gm|abbr=on}}

| eccentricity = {{val|0.01|0.03}}

| period = {{val|1178.4|8.8|u=days}}

| time_periastron = {{val|2453435|56|ul=JD|fmt=commas}}

| arg_peri = {{val|350|171|u=°}}

| semi-amplitude = {{val|38.3|1.1|u=km/s}}

| mass = {{val|2.10|0.11|ul=Jupiter mass|p=≥}}

}}

HD 159868 b is an extrasolar planet that orbits HD 159868. It is a jovian planet. The orbit is nearly circular at the average distance of 2.25 AU.

References

{{Reflist|colwidth=30em|refs=

{{cite journal | url=http://www.iop.org/EJ/article/0004-637X/660/2/1636/70956.html | title=New Planets around Three G Dwarfs | last1=O'Toole | first1=Simon J. | last2=Butler | first2=R. Paul | last3=Tinney | first3=C. G. | last4=Jones | first4=Hugh R. A. | last5=Marcy | first5=Geoffrey W. | last6=Carter | first6=Brad | last7=McCarthy | first7=Chris | last8=Bailey | first8=Jeremy | last9=Penny | first9=Alan J. | display-authors=1 | journal=The Astrophysical Journal | volume=660 | issue=2 | pages=1636–1641 | year=2007 | arxiv=astro-ph/0702213 | bibcode=2007ApJ...660.1636O | doi=10.1086/513563 | s2cid=118958847 }}

{{cite journal

| title=The Anglo-Australian Planet Search. XXII. Two New Multi-planet Systems

| last1=Wittenmyer | first1=Robert A. | last2=Horner | first2=J.

| last3=Tuomi | first3=Mikko | last4=Salter | first4=G. S.

| last5=Tinney | first5=C. G. | last6=Butler | first6=R. P.

| last7=Jones | first7=H. R. A.| last8=O'Toole | first8=S. J.

| last9=Bailey | first9=J. | last10=Carter | first10=B. D.

| last11=Jenkins | first11=J. S. |last12=Zhang | first12=Z.

| last13=Vogt | first13=S. S. |last14=Rivera | first14=Eugenio J.

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

| volume=753 | issue=2 | date=2012 | pages= 169

| bibcode=2012ApJ...753..169W | arxiv=1205.2765