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| On the variability of BD +20 1171.
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Osservazione e dati astrometrici
| Costellazione: | Orione |
| Ascensione retta: | 05h55m37.84s |
| Declinazione: | +20°28'08.3" |
| Magnitudine apparente: | 7.678 |
| Moto proprio RA: | 0.8 |
| Moto proprio Dec: | -2.3 |
| B-T magnitude: | 10.084 |
| V-T magnitude: | 7.877 |
Cataloghi e designazioni:
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