20078+1950 WEB  12

 
 
20h 07m 45.66s +19 50' 14.0" P.A. 77 sep 40.4 mag 8.36,8.37 Sp F0
 
 
Coord 2000
20078+1950
Discov num
WEB  12
Comp
Coord arcsec 2000
20 07 45.66 +19 50 14.0
Date first
1895
Date last
2017
Obs
22
Pa first
77
Pa last
77
P.A. Now (θ)
77°
Sep first
41.4
Sep last
40.4
Sep. Now (ρ)
40.4"
Mag pri
8.36
Mag sec
8.37
delta mag (ΔM)
0.01
Spectral class
F0 (yellow-white)
Pri motion ra
+030
Sec motion ra
+030
Pri motion dec
-001
Sec motion dec
-007
Notes
W
rPM=0.195 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
77
Precise sep
40.4
Constellation
Sagitta
SAO
105724
Tycho2
1625-00995-1
Gaia DR2
84264898048
HD
191140
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20078+1950 WEB 12 2000 12 77 41.2 8.36 8.37 D 200745.66+195014.0
20078+1950 WEB 12 2010 13 77 41.0 8.36 8.37 F0 D 200745.66+195014.0
20078+1950 WEB 12 2011 14 77 40.9 8.36 8.37 F0 D 200745.66+195014.0
20078+1950 WEB 12 2013 15 77 40.6 8.36 8.37 F0 200745.66+195014.0
20078+1950 WEB 12 2015 17 77 41.0 8.36 8.37 F0 W 200745.66+195014.0
20078+1950 WEB 12 2017 19 77 40.4 8.36 8.37 F0 W 200745.66+195014.0

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