| Coord 2000 | 20025+3940 |
Discov num | BRT2251 |
Comp | Coord arcsec 2000 | 20 02 32.24 +39 39 48.8 |
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| Date first | 1892 |
Date last | 2015 |
Obs | 8 |
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| Pa first | 144 |
Pa last | 155 |
P.A. Now (θ) | 155° |
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| Sep first | 4.0 |
Sep last | 4.3 |
Sep. Now (ρ) | 4.3" |
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| Mag pri | 10.70 |
Mag sec | 11.90 |
delta mag (ΔM) | 1.2 |
Spectral class | |||||
| Pri motion ra | -019 |
Sec motion ra | -015 |
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| Pri motion dec | +029 |
Sec motion dec | -030 |
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| Notes | |||||||||||
| Precise pa | 154.7 |
Precise sep | 4.341 |
Constellation | Cygnus |
Tycho2 | 3154-01062-1 |
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| Gaia DR2 | 96283717632 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20025+3940 | BRT2251 | 2007 | 4 | 151 | 4.2 | 9.30 | 10.50 | D | 200232.24+393948.8 | ||
| 20025+3940 | BRT2251 | 2011 | 7 | 154 | 4.3 | 9.30 | 10.50 | 200232.24+393948.8 | |||
| 20025+3940 | BRT2251 | 2015 | 8 | 155 | 4.3 | 10.70 | 11.90 | 200232.24+393948.8 |