| Coord 2000 | 20209+5511 |
Discov num | TDT2197 |
Comp | Coord arcsec 2000 | 20 20 56.89 +55 10 55.8 |
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| Date first | 1991 |
Date last | 1991 |
Obs | 1 |
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| Pa first | 241 |
Pa last | 241 |
P.A. Now (θ) | 241° |
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| Sep first | 2.0 |
Sep last | 2.0 |
Sep. Now (ρ) | 2" |
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| Mag pri | 10.81 |
Mag sec | 13.32 |
delta mag (ΔM) | 2.51 |
Spectral class | B8 (blue-white) |
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| Pri motion ra | -001 |
Sec motion ra | -001 |
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| Pri motion dec | -017 |
Sec motion dec | -017 |
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| Notes | X
(Dubious double) |
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| Precise pa | 241 |
Precise sep | 1.99 |
Constellation | Cygnus |
Tycho2 | 3941-01878-1 |
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| Gaia DR2 | 2185317332018388736 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20209+5511 | TDT2197 | 1991 | 1 | 241 | 2.0 | 10.81 | 13.32 | 202056.89+551055.8 |