20078+3520 SEI 901AB

 
 
20h 07m 47.34s +35 20' 29.5" P.A. 87 sep 15.6 mag 12.10,12.30
 
 
Coord 2000
20078+3520
Discov num
SEI 901
Comp
AB
Coord arcsec 2000
20 07 47.34 +35 20 29.5
Date first
1896
Date last
2015
Obs
11
Pa first
86
Pa last
87
P.A. Now (θ)
87°
Sep first
15.9
Sep last
15.6
Sep. Now (ρ)
15.6"
Mag pri
12.10
Mag sec
12.30
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-003
Sec motion ra
-004
Pri motion dec
-003
Sec motion dec
-006
Notes
rPM=0.439
Nature of this double is uncertain.
 
 
20078+3520 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20078+3520 SEI 901 AB 1896 2015 11 87 15.6 12.10 12.30 0.20 <===
Show 20078+3520 BKO 94 BC 1998 2015 8 46 13.5 12.30 15.50 3.20
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
86.5
Precise sep
15.596
Constellation
Cygnus
Tycho2
2679-01149-1
Gaia DR2
80553512576
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20078+3520 SEI 901 AB 2002 5 86 15.6 12.10 12.30 D 200747.34+352029.5
20078+3520 SEI 901 AB 2015 7 87 15.6 12.10 12.30 200747.34+352029.5

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