EO Aurigae
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 7.71[3] |
| Characteristics | |
| Spectral type | B3V + B3V[4] |
| U−B Template:Engvar | −0.63[3] |
| B−V Template:Engvar | 0.08[3] |
| Variable type | Algol variable |
| Astrometry | |
| Radial velocity (Rv) | -1.1[5] km/s |
| Proper motion (μ) | RA: Script error: No such module "val".[2] mas/yr Dec.: Script error: No such module "val".[2] mas/yr |
| Parallax (π) | 2.12±1.15 mas[2] |
| Distance | approx. Template:Rnd ly (approx. Template:Rnd pc) |
| Details | |
| EO Aur A | |
| Mass | Script error: No such module "val".[6] Template:Solar mass |
| Luminosity (bolometric) | 2,784[6] Template:Solar luminosity |
| Temperature | 13,360[6] K |
| Age | Script error: No such module "val".[4] Myr |
| EO Aur B | |
| Mass | Script error: No such module "val".[6] Template:Solar mass |
| Luminosity (bolometric) | 1377[6] Template:Solar luminosity |
| Temperature | 11,650[6] K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| BD+36° 1073, HD 34333, HIP 24744, SAO 57857. | |
| Database references | |
| SIMBAD | data |
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EO Aurigae is an eclipsing binary of Algol type in the northern constellation of Auriga. With a combined apparent magnitude of 7.71,[3] it is too faint to be seen with the unaided eye.
The eclipsing binary nature of the star was detected in 1943 by Sergei Gaposchkin at Harvard College Observatory.[7] It consists of a pair of B-type main sequence stars orbiting each other with a period of 4.0656 days. During the eclipse of the primary star, the combined magnitude drops by 0.57; the eclipse of the secondary component drops the magnitude by 0.33.[8]
References
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- ↑ a b c d e Script error: No such module "Citation/CS1". Vizier catalog entry
- ↑ a b c d Script error: No such module "citation/CS1".
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- ↑ a b c d e f Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
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