HD 114783

{{Starbox observe

| epoch = J2000

| constell = Virgo

| ra = {{RA|13|12|43.78556}}

| dec = {{DEC|-02|15|54.1307}}

| appmag_v = 7.56

}}

{{Starbox character

| class = K1V

| b-v = {{val|0.930|0.013}}

| u-b =

| variable = Constant

}}

{{Starbox astrometry

| radial_v = {{val|−12.07|0.12}}

| prop_mo_ra = {{val|−138.362|(34)}}

| prop_mo_dec = {{val|10.284|(22)}}

| pm_footnote =

| parallax = 47.5529

| p_error = 0.0291

| parallax_footnote =

| absmag_v = 6.00

}}

{{Starbox detail

| source =

| mass = {{val|0.883|0.018|0.028}}

| radius = {{val|0.810|0.011|0.009}}

| luminosity = {{val|0.423|0.001}}

| temperature = {{val|5114|12|fmt=commas}}

| gravity = {{val|4.42|0.58}}

| metal_fe = {{val|0.08|0.11}}

| age_gyr = {{val|2.5|3.0|1.6}}

| rotational_velocity = {{val|1.9|0.5}}

}}

{{Starbox catalog

| names = {{odlist | HD=114783 | BD=−01°2784 | GJ=3769 | HIP=64457 | SAO=139218 }}

}}

{{Starbox reference

| Simbad = HD+114783

| ARICNS = 00151

| NSTED = HD+114783

| EPE = HD+114783

}}

HD 114783 is a star with two exoplanetary companions in the equatorial constellation of Virgo. With an apparent visual magnitude of 7.56 it is too faint to be visible with the unaided eye, but is an easy target for binoculars. Based on parallax measurements, it is located at a distance of {{convert|68.6|ly|pc|lk=on|abbr=off}} from the Sun, but is drifting closer with a radial velocity of −12 km/s.

This is an orange-hued K-type main-sequence star with a stellar classification of K1V. It is roughly 2.5 billion years old and is chromospherically inactive with a low projected rotational velocity of 1.9 km/s. The star has 88% of the mass and 81% of the radius of the Sun. It is radiating 42% of the luminosity of the Sun from its photosphere at an effective temperature of 5,114 K.

In 2001, the California and Carnegie Planet Search team found an exoplanet, HD 114783 b, orbiting the star using the radial velocity method. The discovery was made with the Keck Telescope. A second companion, HD 114783 c, was discovered in 2016, and in 2023 its inclination and true mass were measured via astrometry.

{{OrbitboxPlanet begin

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = {{val|1.034|0.089|p=≥ }}

| period = {{val|496.9|2.3}}

| semimajor = {{val|1.169|0.068}}

| eccentricity = {{val|0.085|0.033}}

}}

{{OrbitboxPlanet

| exoplanet = c

| mass = {{val|1.9|0.5|0.4}}

| period = {{val|4352|88|76|fmt=commas}}

| semimajor = {{val|5.0|0.1}}

| eccentricity = {{val|0.05|0.04|0.03}}

| inclination = {{val|21|7|4}} or {{val|159|4|6}}

}}

References

{{Reflist|refs=

{{cite journal

| title=Catalog of Nearby Exoplanets

| last1=Butler | first1=R. P. | 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. | display-authors=1

| journal=The Astrophysical Journal

| volume=646 | issue=1 | pages=505–522 | year=2006

| arxiv=astro-ph/0607493 | bibcode=2006ApJ...646..505B

| doi=10.1086/504701 | s2cid=119067572 }}

{{cite journal

| title=Ten Low-Mass Companions from the Keck Precision Velocity Survey

| last1=Vogt | first1=Steven S. | last2=Butler | first2=R. Paul

| last3=Marcy | first3=Geoffrey W. | last4=Fischer | first4=Debra A.

| last5=Pourbaix | first5=Dimitri | last6=Apps | first6=Kevin

| last7=Laughlin | first7=Gregory | display-authors=1

| journal=The Astrophysical Journal

| volume=568 | issue=1 | pages=352–362 | date=2002

| arxiv=astro-ph/0110378 | bibcode=2002ApJ...568..352V

| doi=10.1086/338768 | s2cid=2272917 }}

{{cite journal

| title=Michigan catalogue of two-dimensional spectral types for the HD Stars

| last1=Houk | first1=N. | last2=Swift | first2=C.

| journal=Michigan Spectral Survey

| volume=5 | year=1999

| bibcode=1999MSS...C05....0H }}

{{cite journal

| last1=Anderson | first1=E. | last2=Francis | first2=Ch.

| title=XHIP: An extended hipparcos compilation

| journal=Astronomy Letters

| volume=38 | issue=5 | pages=331 | year=2012

| bibcode=2012AstL...38..331A | arxiv=1108.4971

| doi=10.1134/S1063773712050015 | s2cid=119257644 }}

{{cite journal

| title=Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES). I. Code description and dwarf stars catalogue

| last1=Soto | first1=M. G. | last2=Jenkins | first2=J. S.

| journal=Astronomy and Astrophysics

| volume=615 | pages=A76 | year=2018

| bibcode=2018A&A...615A..76S | arxiv=1801.09698

| doi=10.1051/0004-6361/201731533 | s2cid=119107228 }}

{{cite journal

| title=Statistics of Long Period Gas Giant Planets in Known Planetary Systems

| last1=Bryan | first1=Marta L. | last2=Knutson | first2=Heather A.

| last3=Howard | first3=Andrew W. | last4=Ngo | first4=Henry

| last5=Batygin | first5=Konstantin | last6=Crepp | first6=Justin R.

| last7=Fulton | first7=B. J. | last8=Hinkley | first8=Sasha

| last9=Isaacson | first9=Howard | last10=Johnson | first10=John A.

| last11=Marcy | first11=Geoffry W. | last12=Wright | first12=Jason T.

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

| volume=821 | issue=2 | page=89 | year=2016

| doi=10.3847/0004-637X/821/2/89 | arxiv=1601.07595

| bibcode=2016ApJ...821...89B | s2cid=19709252 | doi-access=free }}

{{cite journal |last1=Philipot |first1=F. |last2=Lagrange |first2=A.-M. |display-authors=etal |date=August 2023 |title=Multi techniques approach to identify and/or constrain radial velocity sub-stellar companions |journal=Astronomy & Astrophysics |volume= 678|issue= |pages= A107|doi= 10.1051/0004-6361/202346612|arxiv=2308.05417|s2cid=260775968 }}

}}

Category:K-type main-sequence stars

Category:Planetary systems with two confirmed planets

Category:Virgo (constellation)

HD 114783

See also

References