| Coord 2000 | 00250+3015 |
Discov num | SKF 21 |
Comp | Coord arcsec 2000 | 00 25 58.96 +30 15 11.5 |
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| Date first | 1997 |
Date last | 2015 |
Obs | 4 |
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| Pa first | 132 |
Pa last | 131 |
P.A. Now (θ) | 131° |
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| Sep first | 4.5 |
Sep last | 4.6 |
Sep. Now (ρ) | 4.6" |
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| Mag pri | 16.20 |
Mag sec | 16.20 |
delta mag (ΔM) | 0 |
Spectral class | sdB |
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| Pri motion ra | -040 |
Sec motion ra | |||||||||
| Pri motion dec | +027 |
Sec motion dec | |||||||||
| Notes | V
(Proper motion indicates physical) |
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| Precise pa | 130.8 |
Precise sep | 4.606 |
Constellation | Andromeda |
Gaia DR2 | 2859056963265425664 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 00250+3015 | SKF 21 | 1997 | 1 | 132 | 4.5 | 15.20 | 15.20 | sdB | D | 002558.96+301511.5 | |
| 00250+3015 | SKF 21 | 2000 | 2 | 134 | 4.7 | 15.20 | 15.20 | sdB | D | 002558.96+301511.5 | |
| 00250+3015 | SKF 21 | 2002 | 2 | 130 | 4.7 | 16.20 | 16.20 | sdB | VD | 002558.96+301511.5 | |
| 00250+3015 | SKF 21 | 2015 | 4 | 131 | 4.6 | 16.20 | 16.20 | sdB | V | 002558.96+301511.5 |