21087+5148 ES 1003

 
 
21h 08m 44.45s +51 47' 58.3" P.A. 153 sep 7.2 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
2015
Obs
6
Pa first
150
Pa last
153
P.A. Now (θ)
153°
Sep first
6.6
Sep last
7.2
Sep. Now (ρ)
7.2"
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
153.1
Precise sep
7.178
Constellation
Cygnus
SAO
33169
Tycho2
3600-00450-1
Gaia DR2
33251885568
HD
235448
 
 
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
21087+5148 ES 1003 2015 6 153 7.2 9.48 11.70 K0 210844.45+514758.3

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