HD 330075
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Norma |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 9.36[2] |
| Characteristics | |
| Spectral type | G5[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: -232.760[1] mas/yr Dec.: -92.540[1] mas/yr |
| Parallax (π) | 22.0467±0.0443 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 5.89[2] |
| Details | |
| Mass | Script error: No such module "val".[4] Template:Solar mass |
| Radius | Script error: No such module "val".[1] Template:Solar radius |
| Luminosity | Script error: No such module "val".[1] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val".[4] cgs |
| Temperature | Script error: No such module "val".[1] K |
| Metallicity [Fe/H] | Script error: No such module "val".[4] dex |
| Age | Script error: No such module "val".[4] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[5] | |
| Database references | |
| SIMBAD | data |
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HD 330075 is a star in the southern constellation of Norma. It has a yellow hue and an apparent visual magnitude of 9.36,[2] which makes it too faint to be seen with the naked eye – it is visible only with telescope or powerful binoculars. Parallax measurements provide a distance estimate of 148 light years from the Sun, and it is drifting further away with a radial velocity of 62 km/s.[1] The star is estimated to have come as close as Script error: No such module "convert". some 409 million years ago.[2]
This object appears to be a slightly evolved dwarf with a spectral class of G5. That is, it is nearing the end of its main sequence lifetimes and is becoming a subgiant star. The star has very low chromospheric activity and is around five billion years old.[3] It is smaller than the Sun with 86%[4] of the Sun's mass and 85%[1] of the solar radius. As a consequence, it is radiating just 39% of the luminosity of the Sun from its photosphere at an effective temperature of 4,967 K.[1] It has a super-solar metallicity, which means the abundance of elements other than hydrogen and helium appears much higher than in the Sun.[4]
Planetary system
In 2004, the discovery of a hot Jupiter planet orbiting close to the star was announced. This is the first planet discovered by the then-new HARPS spectrograph.[3]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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See also
References
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External links
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