20085+4622 A   721

 
 
20h 08m 27.15s +46 22' 29.6" P.A. 43 sep 4 mag 8.42,11.52 Sp Am dist. 393.7 pc (1284.25 l.y.)
 
 
Coord 2000
20085+4622
Discov num
A   721
Comp
Coord arcsec 2000
20 08 27.15 +46 22 29.6
Date first
1904
Date last
2016
Obs
11
Pa first
45
Pa last
43
P.A. Now (θ)
43°
Sep first
3.9
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
8.42
Mag sec
11.52
delta mag (ΔM)
3.1
Spectral class
Am (white)
Pri motion ra
+011
Sec motion ra
+015
Pri motion dec
+001
Sec motion dec
+007
Notes
rPM=0.436
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
43.2
Precise sep
3.99
Constellation
Cygnus
SAO
49231
HIP
99211
Tycho2
3559-01043-1
Gaia DR2
45076965120
HD
191528
BD
BD+45 3068
Distance
393.7
Distance ly
1284.25
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20085+4622 A 721 1991 7 43 4.2 8.42 11.52 Am 200827.15+462229.6
20085+4622 A 721 2015 9 43 3.7 8.42 11.52 Am 200827.15+462229.6
20085+4622 A 721 2016 10 43 4.0 8.42 11.52 Am 200827.15+462229.6

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