Coord 2000 | 20205+4351 |
Discov num | BU 1207 |
Comp | AB |
Coord arcsec 2000 | 20 20 27.98 +43 51 16.3 |
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Date first | 1890 |
Date last | 2015 |
Obs | 10 |
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Pa first | 218 |
Pa last | 211 |
P.A. Now (θ) | 211° |
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Sep first | 5.8 |
Sep last | 4.8 |
Sep. Now (ρ) | 4.8" |
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Mag pri | 6.85 |
Mag sec | 14.40 |
delta mag (ΔM) | 7.55 |
Spectral class | WC6/7 (Wolf-Rayet) |
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Pri motion ra | -003 |
Sec motion ra | |||||||||
Pri motion dec | -008 |
Sec motion dec | |||||||||
Notes | N
(See Notes) |
Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 49491 | 20205+4351 | IOT 2 | Aa,Ab | 2003 | 2009 | 7 | 150 | 0.0 | 6.85 | Y | ||||
Show | V1687 Cyg | 49491 | 20205+4351 | BU 1207 | AB | 1890 | 2015 | 10 | 211 | 4.8 | 6.85 | 14.40 | 7.55 | <=== | |
Show | 49491 | 20205+4351 | TRN 29 | AC | 2001 | 2001 | 1 | 202 | 2.3 | 6.85 | 16.00 | 9.15 |
Precise pa | 210.6 |
Precise sep | 4.783 |
Var name | V1687 Cyg |
Constellation | Cygnus |
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SAO | 49491 |
HIP | 100287 |
Tycho2 | 3164-01678-1 |
Gaia DR2 | 72633822592 |
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HD | 193793 |
BD | BD+43 3571 |
Distance | 4000 |
Distance ly | 13048 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20205+4351 | BU 1207 | AB | 2002 | 8 | 210 | 4.8 | 6.85 | 14.40 | N | 202027.98+435116.3 | |
20205+4351 | BU 1207 | AB | 2008 | 9 | 211 | 4.8 | 6.85 | 14.40 | N | 202027.98+435116.3 | |
20205+4351 | BU 1207 | AB | 2015 | 10 | 211 | 4.8 | 6.85 | 14.40 | WC6/7 | N | 202027.98+435116.3 |