| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Draco |
| Right ascension | 17h 53m 31.73s [1] |
| Declination | +56° 52′ 21.5″ [1] |
| Apparent magnitude (V) | 3.19 |
| Characteristics | |
| Spectral type | K2-III |
| Astrometry | |
| Proper motion (μ) | RA: 93.82 ± 0.14 [1] mas/yr Dec.: 78.50 ± 0.12 [1] mas/yr |
| Parallax (π) | 28.98 ± 0.12[1] mas |
| Distance | 112.5 ± 0.5 ly (34.5 ± 0.1 pc) |
| Details | |
| Mass | 1.45 ± 0.17 [2] M☉ |
| Other designations | |
Xi Draconis (ξ Dra, ξ Draconis) is a star in the constellation Draco. It has the traditional name Grumium or Genam.
This star, along with β Dra (Rastaban), γ Dra (Eltanin), μ Dra (Erakis) and ν Dra (Kuma) were Al ʽAwāïd, "the Mother Camels", which was later known as the Quinque Dromedarii.[3]
In Chinese, 天棓 (Tiān Bàng), meaning Celestial Flail, refers to an asterism consisting of ξ Draconis, ν Draconis, β Draconis, γ Draconis and ι Herculis.[4] Consequently, δ Draconis itself is known as 天棓一 (Tiān Bàng yī, English: the First Star of Celestial Flail.)[5]
Xi Draconis has apparent magnitude +3.75 and is of spectral class K2-III. It is approximately 113 light years away from the Earth.[1]
USS Grumium (AK-112) was a United States Navy Crater class cargo ship named after the star.
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