Pi 3 Orionis
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| Pi3 Orionis | |
| Stellar characteristics | |
|---|---|
| Constellation | Orion |
| Right ascension (Epoch J2000) | 04h 49m 50.41s |
| Declination (Epoch J2000) | +06° 57' 40.59" |
| Spectral type | F6 V |
| Distance from Sol | 26.2 ly |
| Other designations | Tabit, Pi3 Ori, 1 Ori, HR 1543*, Gl 178, Hip 22449, HD 30652, BD+06 762, SAO 112106, FK5 1134, LTT 11517. |
Wikipedia data-dump, as of 10 January 2013
Pi3 Orionis (π3 Ori, π3 Orionis) is the Bayer designation for a star in the celestial equatorial constellation of Orion. It has the traditional name of Tabit and the Flamsteed designation 1 Orionis. In Western astronomy, Pi3 Orionis is the brightest star in the lion's hide (or shield) that Orion is holding. In Chinese astronomy, it is part of asterism 參旗 (Shēn Qí, "Banner of Three Stars").
At an apparent visual magnitude of 3.16, it is readily visible to the naked eye. The distance to this star, as measured using the parallax technique, is 26.32 ly.
Pi3 Orionis is a main-sequence star of spectral type F6 V. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. Compared to the Sun, it has about 124% of the mass, 132% of the radius, and nearly 3 times the luminosity. This energy is being radiated from the star's outer atmosphere at an effective temperature of 6,516 K, giving it the yellow-white glow of an F-type star. Pi3 Orionis is most likely single; a nearby star is probably an optical companion.
Pi3 Orionis in Fenspace
- Planet "Qo’noS" discovered by Klingon scouts in 2022, chosen to become the "Klingon homeworld."
