HD 12661 b

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

{{Infobox planet

| name = HD 12661 b

| image = HD 12661 b (Celestia).jpg

| caption = The exoplanet HD 12661 b (min mass ~2.3 MJ) as rendered by Celestia

| discoverer = Fischer et al.

| discovery_site = California & Carnegie
Planet Search
{{flag|USA}}

| discovered = April 4, 2001

| discovery_method = Radial velocity

| apsis = astron

| semimajor = {{convert|0.834|±|0.048|AU|km|abbr=on}}

| eccentricity = 0.361 ± 0.011

| period = 262.53 ± 0.27 d

| time_periastron = 2,450,214.1 ± 2.9

| arg_peri = 296.3±2.6

| semi-amplitude = 74.19 ± 0.85

| star = HD 12661

| mass = >2.34 ± 0.19 {{Jupiter mass|link=y}}

}}

HD 12661 b is a giant exoplanet two and a half times the mass of Jupiter orbiting around the star HD 12661.

References

{{Reflist|refs=

{{cite journal | title=Planetary Companions to HD 12661, HD 92788, and HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets | last1=Fischer | first1=Debra A. | last2=Marcy | first2=Geoffrey W. | last3=Butler | first3=R. Paul | last4=Vogt | first4=Steven S. | last5=Frink | first5=Sabine | last6=Apps | first6=Kevin | display-authors=1 | journal=The Astrophysical Journal | volume=551 | issue=2 | pages=1107–1118 | year=2001 | bibcode=2001ApJ...551.1107F | doi=10.1086/320224 | doi-access=free }}

}}

{{cite journal | author=Butler | title=Catalog of Nearby Exoplanets | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505–522 | date=2006 | doi=10.1086/504701 | last2=Wright | first2=J. T. | last3=Marcy | first3=G. W. | last4=Fischer | first4=D. A. | last5=Vogt | first5=S. S. | last6=Tinney | first6=C. G. | last7=Jones | first7=H. R. A. | last8=Carter | first8=B. D. | last9=Johnson | first9=J. A. | bibcode=2006ApJ...646..505B|arxiv = astro-ph/0607493 | s2cid=119067572 | display-authors=1 }}

Category:Aries (constellation)

Category:Giant planets

Category:Exoplanets discovered in 2001

Category:Exoplanets detected by radial velocity