1-Alpha Umi 'Polaris'
| WDS | 02318+8916 |
| RA | 02 31 47 |
| Dec | +89 15 51 |
| Sternbild/Constellation | Umi, Ursa Minor / Kl. Bär / Little bear Foto/Photo  |
| Bmkg./Note | - |
| Komponenten Components |
Abstand " Separation " |
Mag 1 | Mag 2 | Positionswinkel Position angle |
| Aa,Ab AB AC AD |
0,1 18,6 38,7 83,2 |
2,3 2,1 2,1 2,1 |
4,3 9,1 13,1 12,1 |
281 233 100 192 |
WDS notes: STF 93 Alpha Umi. Polaris. A Cepheid variable and a spectroscopic binary, P = 30yr. A close companion has been suspected. B is BD+88@7. The close pair, measured only by R.H. Wilson with an eyepiece interferometer, has not been seen otherwise. It agrees with the o
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