20339+3515 WRH  34AB (47 Cyg)

 
 
20h 33m 54.19s +35 15' 03.1" P.A. 278 sep 0.3 mag 4.84,7.30 Sp K2Ib+B3V dist. 847.46 pc (2764.41 l.y.)
 
 
Coord 2000
20339+3515
Discov num
WRH  34
Comp
AB
Coord arcsec 2000
20 33 54.19 +35 15 03.1
Date first
1949
Date last
1998
Obs
27
Pa first
274
Pa last
278
P.A. Now (θ)
278°
Sep first
0.1
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
4.84
Mag sec
7.30
delta mag (ΔM)
2.46
Spectral class
K2Ib+B3V (yellow-orange/blue-white)
Pri motion ra
+002
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20339+3515 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47 Cyg 70203 20339+3515 WRH 34 AB 1949 1998 27 278 0.3 4.84 7.30 2.46 <===
Show 20339+3515 BU 1490 AC 1880 2013 12 210 115.1 4.82 11.87 7.05
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
278.4
Precise sep
0.282
Name
47 Cyg
Constellation
Cygnus
SAO
70203
HIP
101474
Tycho2
2694-02168-1
Gaia DR2
31818264064
HD
196093
HR
7866
GC
28630
BD
BD+34 4079
Flamsteed
47 Cygni
Flamsteed name
47 Cyg
Distance
847.46
Distance ly
2764.41
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20339+3515 WRH 34 AB 1998 27 278 0.3 4.84 7.30 K2Ib B3V N 203354.19+351503.1
20339+3515 WRH 34 AB 2003 28 285 0.3 4.84 7.30 K2Ib+B3V N 203354.19+351503.1

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