Tianyi
Designations
- Flamsteed: 7 Dra
- Hipparchos: HIP 62423
Data
- Constellation: Draco
- Apparent Magnitude: 5.42
- Right Ascension (J2000): 12h47m33.18s
- Declination (J2000): +66°47'43".6
- Colour Index (B-V): 1.58
- Distance: 722.88±9.16ly
Nomenclature
Tianyi
The name is from Chinese 天一 Tiān Yī, 'heavenly unity'. This star comprised a single-star asterism just outside the 紫微右垣 Zǐ Wēi Yòu Yuán, 'Purple Palace Right Wall'.