Coord 2000 | 20042+3728 |
Discov num | ALI 654 |
Comp | Coord arcsec 2000 | 20 04 06.30 +37 27 59.8 |
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Date first | 1929 |
Date last | 2015 |
Obs | 9 |
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Pa first | 350 |
Pa last | 351 |
P.A. Now (θ) | 351° |
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Sep first | 11.6 |
Sep last | 10.9 |
Sep. Now (ρ) | 10.9" |
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Mag pri | 9.03 |
Mag sec | 12.60 |
delta mag (ΔM) | 3.57 |
Spectral class | B9 (blue-white) |
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Pri motion ra | -002 |
Sec motion ra | -005 |
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Pri motion dec | -005 |
Sec motion dec | +001 |
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Notes |
Precise pa | 351.3 |
Precise sep | 10.945 |
Constellation | Cygnus |
SAO | 69349 |
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Tycho2 | 2682-00072-1 |
Gaia DR2 | 90504316544 |
HD | 190550 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20042+3728 | ALI 654 | 1998 | 2 | 352 | 11.0 | 9.03 | 12.60 | D | 200406.30+372759.8 | ||
20042+3728 | ALI 654 | 2002 | 3 | 351 | 11.0 | 9.03 | 12.60 | D | 200406.30+372759.8 | ||
20042+3728 | ALI 654 | 2010 | 4 | 350 | 11.4 | 9.03 | 12.60 | B9 | 200406.30+372759.8 | ||
20042+3728 | ALI 654 | 2015 | 5 | 351 | 11.0 | 9.03 | 12.60 | B9 | 200406.30+372759.8 |