21102+3844 SEI1426

 
 
21H 10M 14.39S +38 44' 10.5" P.A. 20 SEP 17.6 MAG 10.23,11.96
 
 
Coord 2000
21102+3844
Discov num
SEI1426
Comp
Coord arcsec 2000
21 10 14.39 +38 44 10.5
Date first
1895
Date last
2012
Obs
8
Pa first
15
Pa last
20
P.A. Now (θ)
20°
Sep first
17.0
Sep last
17.6
Sep. Now (ρ)
17.6"
Mag pri
10.23
Mag sec
11.96
delta mag (ΔM)
1.73
Spectral class
Pri motion ra
-011
Sec motion ra
-001
Pri motion dec
-008
Sec motion dec
-009
Notes
rPM=0.739
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
3169-02123-1
last precise pa
20
last precise sep
17.6