| Coord 2000 | 20057+3020 |
Discov num | ES 498 |
Comp | Coord arcsec 2000 | 20 05 42.33 +30 19 39.3 |
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| Date first | 1902 |
Date last | 2015 |
Obs | 9 |
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| Pa first | 243 |
Pa last | 309 |
P.A. Now (θ) | 309° |
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| Sep first | 10.5 |
Sep last | 8.3 |
Sep. Now (ρ) | 8.3" |
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| Mag pri | 8.86 |
Mag sec | 12.50 |
delta mag (ΔM) | 3.64 |
Spectral class | F5V (yellow-white) |
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| Pri motion ra | -019 |
Sec motion ra | |||||||||
| Pri motion dec | -103 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 309.4 |
Precise sep | 8.293 |
Constellation | Cygnus |
SAO | 69387 |
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| HIP | 98981 |
Tycho2 | 2670-04657-1 |
Gaia DR2 | 2029844184538970496 |
HD | 190814 |
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| BD | BD+29 3889 |
Distance | 82.99 |
Distance ly | 270.71 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20057+3020 | ES 498 | 1907 | 2 | 241 | 9.4 | 8.30 | 11.20 | F5V | D | 200542.33+301940.3 | |
| 20057+3020 | ES 498 | 2011 | 3 | 306 | 7.9 | 8.86 | 12.50 | F5V | D | 200542.33+301939.3 | |
| 20057+3020 | ES 498 | 2015 | 5 | 309 | 8.3 | 8.86 | 12.50 | F5V | 200542.33+301939.3 |