HD 33283 b

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

{{Infobox planet

| name = HD 33283 b

| discoverer = Johnson et al.

| discovery_site = {{flag|United States}}

| discovered = April 17, 2006

| discovery_method = Doppler spectroscopy

| apsis = astron

| semimajor = {{val|0.1508|0.0087}} AU

| eccentricity = {{val|0.399|0.056}}

| period = {{val|18.1991|0.0017}} d

| time_periastron = {{val|2463017.31|0.29}}

| arg_peri = {{val|155.5|7.1}}

| semi-amplitude = {{val|22.4|1.6}}

| star = HD 33283

}}

HD 33283 b is an exoplanet orbiting around HD 33283. The mass of the planet is about ¹/₃ that of Jupiter or about the same as Saturn. However, the planet orbits very close to the star, taking only 18 days to complete its orbit with average speed of 86.5 km/s (311400 km/h). Despite this, its orbit is eccentric, bringing it as close as 0.075 AU to the star and as far away as 0.215 AU.

References

{{Reflist|refs=

{{cite journal | title=The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets | last1=Johnson | first1=John Asher | last2=Marcy | first2=Geoffrey W. | last3=Fischer | first3=Debra A. | last4=Laughlin | first4=Gregory | last5=Butler | first5=R. Paul | last6=Henry | first6=Gregory W. | last7=Valenti | first7=Jeff A. | last8=Ford | first8=Eric B. | last9=Vogt | first9=Steven S. | display-authors=1 | journal=The Astrophysical Journal | volume=647 | issue=1 | pages=600–611 | year=2006 | arxiv=astro-ph/0604348 | bibcode=2006ApJ...647..600J | doi=10.1086/505173 | s2cid=12421834 }}

{{cite journal | title=Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810 | last1=Ment | first1=Kristo | last2=Fischer | first2=Debra A. | last3=Bakos | first3=Gaspar | last4=Howard | first4=Andrew W. | last5=Isaacson | first5=Howard | display-authors=1 | journal=The Astronomical Journal | volume=156 | issue=5 | at=213 | year=2018 | arxiv=1809.01228 | bibcode=2018AJ....156..213M | doi=10.3847/1538-3881/aae1f5 | s2cid=119243619 | doi-access=free }}

}}

External links

{{cite web | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+33283 | title=HD 33283 | work=Exoplanets | access-date=2008-09-10 | archive-url=https://web.archive.org/web/20091125091146/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+33283 | archive-date=2009-11-25 | url-status=dead }}

Category:Lepus (constellation)

Category:Exoplanets discovered in 2006

Category:Giant planets

Category:Exoplanets detected by radial velocity

HD 33283 b

See also

References

External links