Coord 2000 | 20231+4047 |
Discov num | J 787 |
Comp | AD |
Coord arcsec 2000 | 20 23 07.30 +40 46 55.2 |
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Date first | 1917 |
Date last | 2015 |
Obs | 5 |
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Pa first | 291 |
Pa last | 293 |
P.A. Now (θ) | 293° |
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Sep first | 15.7 |
Sep last | 15.8 |
Sep. Now (ρ) | 15.8" |
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Mag pri | 10.50 |
Mag sec | 12.40 |
delta mag (ΔM) | 1.9 |
Spectral class | B3 (blue-white) |
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Pri motion ra | -006 |
Sec motion ra | +001 |
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Pri motion dec | -002 |
Sec motion dec | -007 |
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Notes | N
(See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 49556 | 20 23 07 +40 46 55 | J 787 AB | 2003 | 4 | 165 | 2.6 | 10.50 | 11.40 | 0.90 | |||
Show | 49556 | 20 23 07 +40 46 55 | J 787 AC | 2015 | 5 | 112 | 9.5 | 10.50 | 13.00 | 2.50 | |||
Show | 49556 | 20 23 07 +40 46 55 | J 787 AD | 2015 | 5 | 293 | 15.8 | 10.50 | 12.40 | 1.90 | <=== | ||
Show | 49556 | 20 23 08 +40 46 52 | J 787 CD | 2015 | 9 | 292 | 25.3 | 13.00 | 12.40 | 0.60 |
Precise pa | 292.7 |
Precise sep | 15.772 |
Constellation | Cygnus |
SAO | 49556 |
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Tycho2 | 3156-01857-1 |
Gaia DR2 | 2067570459999953024 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20231+4047 | J 787 | AD | 2003 | 3 | 293 | 15.9 | 9.40 | 12.00 | N D | 202307.30+404655.2 | |
20231+4047 | J 787 | AD | 2015 | 5 | 293 | 15.8 | 10.50 | 12.40 | B3 | N | 202307.30+404655.2 |