20205+4127 LI    4 (V1685 Cyg)

 
 
20h 20m 29.35s +41 21' 28.4" P.A. 333 sep 8.9 mag 14.40,16.80 dist. 79.49 pc (259.3 l.y.)
 
 
Coord 2000
20205+4127
Discov num
LI    4
Comp
Coord arcsec 2000
20 20 29.35 +41 21 28.4
Date first
1992
Date last
2015
Obs
6
Pa first
330
Pa last
333
P.A. Now (θ)
333°
Sep first
9.1
Sep last
8.9
Sep. Now (ρ)
8.9"
Mag pri
14.40
Mag sec
16.80
delta mag (ΔM)
2.4
Spectral class
Pri motion ra
-001
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
332.5
Precise sep
8.911
Var name
V1685 Cyg
Spectr
B2e
Constellation
Cygnus
HIP
100289
Tycho2
3160-01898-1
Gaia DR2
76220215808
BD
BD+40 4124
Distance
79.49
Distance ly
259.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20205+4127 LI 4 1992 2 330 9.1 12.90 16.80 D 202029.26+412128.6
20205+4127 LI 4 1998 2 332 8.9 14.40 16.80 D 202029.35+412128.4
20205+4127 LI 4 2015 3 333 8.9 14.40 16.80 202029.35+412128.4

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