20188+4244 HO  124

 
 
20h 18m 50.63s +42 43' 49.3" P.A. 357 sep 0.9 mag 9.05,9.94 Sp A
 
 
Coord 2000
20188+4244
Discov num
HO  124
Comp
Coord arcsec 2000
20 18 50.63 +42 43 49.3
Date first
1886
Date last
2010
Obs
16
Pa first
1
Pa last
357
P.A. Now (θ)
357°
Sep first
0.8
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
9.05
Mag sec
9.94
delta mag (ΔM)
0.89
Spectral class
A (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-006
Sec motion dec
-006
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
356.5
Precise sep
0.922
Constellation
Cygnus
SAO
49457
Tycho2
3159-00089-1
Gaia DR2
01683843072
HD
193486
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20188+4244 HO 124 2005 14 359 0.9 9.05 9.94 A 201850.63+424349.3
20188+4244 HO 124 2010 15 357 0.9 9.05 9.94 A 201850.63+424349.3

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