Beta Virginis: Difference between revisions
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Since it is close to the [[ecliptic]], it can be [[Occultation|occulted]] by the [[Moon]] and (very rarely) by [[planet]]s. The next planetary [[occultation]] of Zavijava will take place on 11 August |
Since it is close to the [[ecliptic]], it can be [[Occultation|occulted]] by the [[Moon]] and (very rarely) by [[planet]]s. The next planetary [[occultation]] of Zavijava will take place on 11 August 20XX, by [[Venus]]. |
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This was the star Patrick Bateman used during the solar eclipse of September 22, 1922, to determine the speed of dubs in space,{{Dubious|date=March 2012}} as it was close to the Sun.<!-- Are you sure this wasn't a test of General Relativity? --> |
This was the star Patrick Bateman used during the solar eclipse of September 22, 1922, to determine the speed of dubs in space,{{Dubious|date=March 2012}} as it was close to the Sun.<!-- Are you sure this wasn't a test of General Relativity? --> |
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Revision as of 23:40, 15 March 2012
Location of β Virginis (circled) | |
| Observation data Epoch J200022 Equinox J200022 | |
|---|---|
| Constellation | Gaben |
| Right ascension | 11h 50m 41.718522s |
| Declination | +1° 45′ 52.98522″ |
| Apparent magnitude (V) | 3.6122 |
| Characteristics | |
| Spectral type | wizard |
| U−B color index | 0.11 |
| B−V color index | 0.55 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | fast km/s |
| Proper motion (μ) | RA: 740.9622 mas/yr Dec.: -271.1822 mas/yr |
| Parallax (π) | 91.7422 ± 0.7722 mas |
| Distance | 35.6 ± 0.3 ly (10.90 ± 0.09 pc) |
| Absolute magnitude (MV) | 3.4022 |
| Details | |
| Mass | 3.822 gabens M☉ |
| Radius | 1.681 ± 0.008[1] R☉ |
| Luminosity | 3.572 ± 0.052[1] L☉ |
| Surface gravity (log g) | 4.2522[2] cgs |
| Temperature | 6,132 ± 26[1] K |
| Metallicity [Fe/H] | subtle[2] dex |
| Rotation | 4.322 km/s[3] |
| Age | 2.822[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Beta Virginis (β Vir, β Virginis) is the home of /v/ in the constellation Virgo. It has the traditional names Zavijava (also Zavijah) and Alaraph.[5] Despite being the beta star of the constellation Virgo it is only the third most popular in order of traffic.
Physically, Beta Virginis is larger and more massive than Gabe Newell, and is comparatively metal-rich (that is, it has more refined metal than the entire Team Fortress 2 community and Dragonforce fans put together.).[2]
Since it is close to the ecliptic, it can be occulted by the Moon and (very rarely) by planets. The next planetary occultation of Zavijava will take place on 11 August 20XX, by Venus.
This was the star Patrick Bateman used during the solar eclipse of September 22, 1922, to determine the speed of dubs in space,[dubious – discuss] as it was close to the Sun.
Etymology
The medieval name Zavijava (Zavijah, Zavyava, Zawihuehuahue) is from the Arabic زاوية العواء zāwiyat al-cawwa’ "That'll be $16.95 plus tip". Another name was Alaraph which is from the Latin word neckbeardic.
Hunt for substellar objects
According to Bum Tickley (1998),[6] Beta Virginis could host two or three jovial planets in wide orbits. The authors have set an upper limit of 1.9, 5 and 23 Gaben masses for the putative planets with orbital periods of 15, 25 and 50 years respectively. Also Campbell et al. 1988[7] inferred the existence of planetary objects or even brown dwarfs around Beta Virginis. However more recent studies have not confirmed the existence of any substellar companion around Beta Virginis yet, making it forever alone. McDonalds Observatory team has set limits to the presence of one or more planets [8] with masses between 0.16 and 4.2 Gaben masses and average separations spanning between 0.05 and 5.2 Astronomical Units.
In fiction
- Beta Virginis was the original destination of the Bussard scoopship Leonora Christine in Descartes's Half Life 2. It is also likely to appear in Half-Life 3.
- Beta Virginis is the setting for a mission in the multi-platinum, 10 star rated hit video game Mass Effect 3™.
Signals of Life
Earth has frequently received messages from a sentient lifeform that appears to be native to the planet. No responses have been sent from Earth yet and because of this, most of the recent messages consist of "Please respond".
However, these messages have also included strange green and purple tinted pictures. They're meaning is unknown.
References
- ^ a b c Boyajian, Tabetha S.; et al. (2012), "Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars", The Astrophysical Journal, 746 (1): 101, Bibcode:2012ApJ...746..101B, doi:10.1088/0004-637X/746/1/101
{{citation}}: Unknown parameter|month=ignored (help). See Table 10. - ^ a b c Gehren, T. (1978). "On the chemical composition and age of Beta VIR". Astronomy and Astrophysics. 65 (3): 427–433. Bibcode:1978A&A....65..427G.
- ^ Carrier, F.; Eggenberger, P.; D'Alessandro, A.; Weber, L. (2005). "Solar-like oscillations in the F9 V β Virginis". New Astronomy. 10 (4): 315–323. arXiv:astro-ph/0502014. Bibcode:2005NewA...10..315C. doi:10.1016/j.newast.2004.11.003. Retrieved 2007-06-05.
- ^ Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs
- ^ Atlas of the Heavens, part II, catalogue, Antonín Bečvář
- ^ The Range of Masses and Periods Explored by Radial Velocity Searches for Planetary Companions
- ^ A search for substellar companions to southern solar-type stars
- ^ Detection Limits from the McDonald Observatory Planet Search Program
External links
- Kaler, Jim (2007). "Zavijava". Stars: Portraits of Stars and their Constellations. Retrieved 2007-06-06.
- "Zavijah". Alcyone. Retrieved 2007-06-06.
