09h23m47.0873s, +20° 21′ 52.034″|
m Robot - Moving category HD and HDE objects to Henry Draper Catalogue objects per CFDatWikipedia:Categories for discussion/Log/2010 February 23.
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{{OrbitboxPlanet begin |
{{OrbitboxPlanet begin |
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| table_ref = <ref>{{cite journal | url=http://www.aanda.org/articles/aa/abs/2006/13/aa4303-05/aa4303-05.html | author=Sozzetti ''et al.'' | title=A massive planet to the young disc star HD 81040 | journal=[[Astronomy and Astrophysics]] | volume=449 | issue=1 | year=2006 | pages=417–424 | format=abstract | doi=10.1051/0004-6361:20054303 }}([http://arxiv.org/abs/astro-ph/0511679 web preprint])</ref>}} |
| table_ref = <ref>{{cite journal | url=http://www.aanda.org/articles/aa/abs/2006/13/aa4303-05/aa4303-05.html | author=Sozzetti ''et al.'' | title=A massive planet to the young disc star HD 81040 | journal=[[Astronomy and Astrophysics]] | volume=449 | issue=1 | year=2006 | pages=417–424 | format=abstract | doi=10.1051/0004-6361:20054303 | last2=Udry | first2=S. | last3=Zucker | first3=S. | last4=Torres | first4=G. | last5=Beuzit | first5=J. L. | last6=Latham | first6=D. W. | last7=Mayor | first7=M. | last8=Mazeh | first8=T. | last9=Naef | first9=D. }}([http://arxiv.org/abs/astro-ph/0511679 web preprint])</ref>}} |
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{{OrbitboxPlanet |
{{OrbitboxPlanet |
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| exoplanet = [[HD 81040 b|b]] |
| exoplanet = [[HD 81040 b|b]] |
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo |
| Right ascension | 09h23m 47.0873s |
| Declination | +20° 21' 52.034" |
| Apparent magnitude (V) | +7.74 |
| Distance | 106.2 ly (32.56 pc) |
| Spectral type | G2/G3 |
| Other designations | |
BD+20°2374, FK5 4836, GC 12951, HIP 46070, SAO 80800 | |
| Database references | |
| SIMBAD | data |
HD 81040 is a star in the constellationofLeo. It is G-type yellow dwarf like our Sun. The Sun dwarfs HD 81040 in terms of physical characteristics. The age of the star is not precisely known, the ELODIE spectrograph suggested the age of 0.8 Gyr and found to have young dust disk. Later measurements by modelling chromosperic activity suggested the age of 4.18 Gyr.
On November 24, 2005, the day of Thanksgiving, the superjovian planet was announced by Sozzetti.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >6.86 ± 0.71 MJ | 1.94 | 1001.7 ± 7.0 | 0.526 ± 0.042 | — | — |
{{cite journal}}: Explicit use of et al. in: |author= (help)(web preprint)
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