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Its story
Theta Draconis is a tight spectroscopic binary: two stars chasing each other every 3.07 days, far too close ever to be teased apart by eye. Its double nature was discovered by W. W. Campbell in 1899, and the first orbit published by H. D. Curtis in 1907 still anchors what we know today. At 69 light-years its yellow-white glow shines quietly in the body of the Dragon.
- Constellation
- Draco
- Apparent magnitude
- 4.01
- Distance
- 68.6 light years
- Coordinates (J2000)
- RA 240.473° · Dec 58.565°
- Catalogue
- HIP 78527 · HD 144284
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