Coord 2000 | 20338+4540 |
Discov num | A 740 |
Comp | Coord arcsec 2000 | 20 33 50.35 +45 39 41.2 |
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Date first | 1904 |
Date last | 2016 |
Obs | 16 |
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Pa first | 314 |
Pa last | 313 |
P.A. Now (θ) | 313° |
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Sep first | 0.8 |
Sep last | 0.8 |
Sep. Now (ρ) | 0.8" |
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Mag pri | 9.64 |
Mag sec | 9.95 |
delta mag (ΔM) | 0.31 |
Spectral class | O5V (blue) |
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Pri motion ra | +000 |
Sec motion ra | +000 |
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Pri motion dec | -007 |
Sec motion dec | -007 |
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Notes |
Precise pa | 312.5 |
Precise sep | 0.83 |
Constellation | Cygnus |
SAO | 49801 |
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Tycho2 | 3573-00385-1 |
Gaia DR2 | 45679972096 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20338+4540 | A 740 | 2007 | 13 | 313 | 0.9 | 9.64 | 9.95 | O8 | 203350.35+453941.2 | ||
20338+4540 | A 740 | 2009 | 14 | 314 | 0.8 | 9.64 | 9.95 | O8 | 203350.35+453941.2 | ||
20338+4540 | A 740 | 2016 | 16 | 313 | 0.8 | 9.64 | 9.95 | O5V | 203350.35+453941.2 |