IQ Aurigae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 19m 00.02928s[1] |
| Declination | +33° 44′ 54.2159″[1] |
| Apparent magnitude (V) | 5.35[2] |
| Characteristics | |
| Spectral type | A0pSi[3] |
| U−B color index | −0.62[2] |
| B−V color index | −0.19[2] |
| Variable type | α² CVn |
| Astrometry | |
| Radial velocity (Rv) | +28.6[4] km/s |
| Proper motion (μ) | RA: +14.17[1] mas/yr Dec.: -29.75[1] mas/yr |
| Parallax (π) | 7.89 ± 0.37[1] mas |
| Distance | 410 ± 20 ly (127 ± 6 pc) |
| Absolute magnitude (MV) | –0.42[5] |
| Details | |
| Mass | 3.95 ± 0.21[5] M☉ |
| Radius | 2.6 ± 0.4[5] R☉ |
| Luminosity | 263[5] L☉ |
| Surface gravity (log g) | 4.34 ± 0.12[5] cgs |
| Temperature | 14,454[5] K |
| Metallicity [Fe/H] | 1.70[6] dex |
| Rotation | 2.4660 days[5] |
| Rotational velocity (v sin i) | 49[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
IQ Aurigae is a variable star in the northern constellation of Auriga. The spectrum displays the characteristics of a peculiar star; in this instance a strong line of singly ionized silicon. For this reason it is known as a silicon star. It may also be helium deficient as the lines of helium are weaker than expected.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.Vizier catalog entry
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 5.6 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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