| Coord 2000 | 20257+3709 |
Discov num | ES 2192 |
Comp | Coord arcsec 2000 | 20 25 37.64 +37 07 48.4 |
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| Date first | 1925 |
Date last | 2006 |
Obs | 4 |
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| Pa first | 84 |
Pa last | 79 |
P.A. Now (θ) | 79° |
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| Sep first | 2.6 |
Sep last | 2.8 |
Sep. Now (ρ) | 2.8" |
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| Mag pri | 9.70 |
Mag sec | 12.00 |
delta mag (ΔM) | 2.3 |
Spectral class | B (blue-white) |
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| Pri motion ra | -009 |
Sec motion ra | |||||||||
| Pri motion dec | -012 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 79.1 |
Precise sep | 2.83 |
Constellation | Cygnus |
SAO | 70002 |
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| Tycho2 | 2697-00907-1 |
Gaia DR2 | 24985697664 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20257+3709 | ES 2192 | 1990 | 3 | 80 | 2.4 | 9.70 | 12.00 | 202542.09+370842.6 | |||
| 20257+3709 | ES 2192 | 2006 | 4 | 79 | 2.8 | 9.70 | 12.00 | OB | 202542.09+370842.6 |