Coord 2000 | 20136+4644 |
Discov num | HJ 1495 |
Comp | AB |
Coord arcsec 2000 | 20 13 37.90 +46 44 28.8 |
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Date first | 1828 |
Date last | 2015 |
Obs | 12 |
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Pa first | 333 |
Pa last | 328 |
P.A. Now (θ) | 328° |
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Sep first | 29.0 |
Sep last | 36.5 |
Sep. Now (ρ) | 36.5" |
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Mag pri | 3.93 |
Mag sec | 13.40 |
delta mag (ΔM) | 9.47 |
Spectral class | K2II (yellow-orange) |
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Pri motion ra | +005 |
Sec motion ra | -010 |
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Pri motion dec | +001 |
Sec motion dec | -006 |
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Notes | N
(See Notes) |
Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 49337 | 20136+4644 | WRH 33 | Aa,Ab | 1949 | 1985 | 6 | 144 | 0.0 | 3.93 | Y | ||||
Show | 31 Cyg | 49337 | 20136+4644 | HJ 1495 | AB | 1828 | 2015 | 12 | 328 | 36.5 | 3.93 | 13.40 | 9.47 | <=== | |
Show | 49337 | 20136+4644 | STFA 50 | AC | 1779 | 2016 | 46 | 173 | 108.6 | 3.93 | 6.97 | 3.04 | |||
Show | 49337 | 20136+4644 | STFA 50 | AD | 1800 | 2016 | 38 | 322 | 336.7 | 3.93 | 4.83 | 0.90 | |||
Show | 49337 | 20136+4644 | BU 1483 | AF | 1878 | 2015 | 4 | 168 | 43.5 | 3.93 | 13.90 | 9.97 | |||
Show | 49338 | 20136+4644 | BU 1483 | CG | 1878 | 2003 | 3 | 95 | 37.9 | 6.97 | 14.20 | 7.23 | |||
Show | 49338 | 20136+4644 | BU 1483 | CH | 1878 | 2014 | 4 | 62 | 60.6 | 6.97 | 12.60 | 5.63 | |||
Show | 49338 | 20136+4644 | BU 1483 | CI | 1878 | 2015 | 7 | 136 | 60.2 | 6.97 | 12.26 | 5.29 | |||
Show | 49332 | 20136+4644 | GUI 30 | DC | 1800 | 2003 | 27 | 150 | 431.8 | 4.83 | 6.97 | 2.14 | |||
Show | 49332 | 20136+4644 | ES 26 | DE | 1900 | 2003 | 4 | 252 | 36.3 | 4.83 | 13.20 | 8.37 | |||
Show | 49337 | 20136+4644 | SMR 68 | FJ | 2003 | 2015 | 3 | 217 | 4.2 | 13.90 | 15.10 | 1.20 | |||
Show | 49338 | 20136+4644 | SMR 68 | HK | 2000 | 2015 | 8 | 262 | 8.9 | 11.74 | 10.87 | 0.87 |
Precise pa | 327.6 |
Precise sep | 36.46 |
Name | 31 Cyg |
Constellation | Cygnus |
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SAO | 49337 |
HIP | 99675 |
Tycho2 | 3559-02797-1 |
Gaia DR2 | 52678091904 |
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HD | 192577 |
HR | 7735 |
GC | 28099 |
BD | BD+46 2882 |
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Flamsteed | 31 Cygni |
Flamsteed name | 31 Cyg |
Distance | 271 |
Distance ly | 884 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20136+4644 | HJ 1495 | AB | 2007 | 6 | 327 | 36.0 | 3.93 | 13.40 | K2II | D | 201337.90+464428.8 |
20136+4644 | HJ 1495 | AB | 2012 | 9 | 330 | 36.3 | 3.93 | 13.40 | K2II | N D | 201337.90+464428.8 |
20136+4644 | HJ 1495 | AB | 2014 | 10 | 328 | 36.1 | 3.93 | 13.40 | K2II | N D | 201337.90+464428.8 |
20136+4644 | HJ 1495 | AB | 2015 | 11 | 328 | 36.5 | 3.93 | 13.40 | K2II | N | 201337.90+464428.8 |