19518+3815 ALI 904

 
 
19h 51m 45.80s +38 15' 51.0" P.A. 106 sep 10.8 mag 11.90,12.60
 
 
Coord 2000
19518+3815
Discov num
ALI 904
Comp
Coord arcsec 2000
19 51 45.80 +38 15 51.0
Date first
1928
Date last
2015
Obs
10
Pa first
109
Pa last
106
P.A. Now (θ)
106°
Sep first
11.1
Sep last
10.8
Sep. Now (ρ)
10.8"
Mag pri
11.90
Mag sec
12.60
delta mag (ΔM)
0.7
Spectral class
Pri motion ra
+000
Sec motion ra
-002
Pri motion dec
-013
Sec motion dec
-005
Notes
rPM=0.634
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
106.1
Precise sep
10.768
Constellation
Cygnus
Gaia DR2
47942119808
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19518+3815 ALI 904 1998 4 106 10.8 11.90 12.60 D 195145.80+381551.0
19518+3815 ALI 904 2002 5 107 10.8 11.90 12.60 D 195145.80+381551.0
19518+3815 ALI 904 2015 6 106 10.8 11.90 12.60 195145.80+381551.0

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