HD 33283
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lepus |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 8.05[2] |
| Characteristics | |
| Spectral type | G3/5V[2] + M4–5[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[2] km/s |
| Proper motion (μ) | RA: Script error: No such module "val".[1] mas/yr Dec.: Script error: No such module "val".[1] mas/yr |
| Parallax (π) | 11.0993±0.0286 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 3.19[2] |
| Details | |
| HD 33283 | |
| Mass | Script error: No such module "val".[4] Script error: No such module "val".[5] Template:Solar mass |
| Radius | Script error: No such module "val".[4] Script error: No such module "val".[5] Template:Solar radius |
| Luminosity | Script error: No such module "val".[4] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val".[4] cgs |
| Temperature | Script error: No such module "val".[4] K |
| Metallicity [Fe/H] | Script error: No such module "val".[2] dex |
| Rotational velocity (v sin i) | Script error: No such module "val".[6] km/s |
| Age | Script error: No such module "val".[4] Gyr |
| HD 33283 B | |
| Mass | 0.17[3] Template:Solar mass |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[7] | |
| Database references | |
| SIMBAD | data |
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HD 33283 is a star in the southern constellation Lepus with one planet and a co-moving stellar companion.[3] With an apparent visual magnitude of 8.05,[2] the star is too faint to be seen with the naked eye. It is located at a distance of 294 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +4.5.[2]
This is an ordinary G-type main-sequence star with a stellar classification of G3/5V.[2] It is about 3.6 billion years old and is chromospherically inactive. The star is spinning slowly with a projected rotational velocity of 1 km/s[6] and an estimated rotation period of about 55.5 days.[5] It is larger and more massive than the Sun. HD 33283 is radiating over four times the luminosity of the Sun from its photosphere at an effective temperature of 5,985 K.[4]
In 2014, a co-moving red dwarf companion star, HD 33283 B, of spectral class M4–M5 was detected at an angular separation of Script error: No such module "val"., corresponding to a projected separation of Script error: No such module "val"..[3]
Planetary system
In 2006, J. A. Johnson and associates found a jovian planet orbiting HD 33283 with the radial velocity method.[5] It is orbiting at a distance of Script error: No such module "convert". from the host star with a period of 18.2 days and an eccentricity (ovalness) of 0.4.[8]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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See also
References
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- ↑ a b c d e Template:Cite Gaia DR2
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- ↑ Template:Cite simbad
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External links
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