21087+5148 ES 1003

 
 
21h 08m 44.45s +51 47' 58.3" P.A. 153 sep 7.1 mag 9.48,11.70 Sp K0
 
 
Coord 2000
21087+5148
Discov num
ES 1003
Comp
Coord arcsec 2000
21 08 44.45 +51 47 58.3
Date first
1910
Date last
2009
Obs
5
Pa first
150
Pa last
153
P.A. Now (θ)
153°
Sep first
6.6
Sep last
7.1
Sep. Now (ρ)
7.1"
Mag pri
9.48
Mag sec
11.70
delta mag (ΔM)
2.22
Spectral class
K0 (yellow-orange)
Pri motion ra
-011
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
153.3
Precise sep
7.143
Constellation
Cygnus
last precise pa
153.3
last precise sep
7.143
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21087+5148 ES 1003 2000 3 154 7.1 9.48 11.70 K0 D 210844.45+514758.3
21087+5148 ES 1003 2003 4 153 7.2 9.48 11.70 K0 D 210844.45+514758.3
21087+5148 ES 1003 2009 5 153 7.1 9.48 11.70 K0 210844.45+514758.3

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