21118+8121 LOC 571AB

 
 
21h 11m 49.90s +81 20' 39.8" P.A. 87.00 sep 12.7 mag 16.80,18.30
 
 
Coord 2000
21118+8121
Discov num
LOC 571
Comp
AB
Coord arcsec 2000
21 11 49.90 +81 20 39.8
Date first
1999
Date last
2015
Obs
6
Pa first
86
Pa last
87
P.A. Now (θ)
87°
Sep first
12.9
Sep last
12.7
Sep. Now (ρ)
12.7"
Mag pri
16.80
Mag sec
18.30
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
+047
Sec motion ra
+046
Pri motion dec
+067
Sec motion dec
+067
Notes
V (Proper motion indicates physical)
rPM=0.012 (< 0.3, Physical double)
This double is physical.
 
 
21118+8121 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21118+8121 LOC 571 AB 1999 2015 6 87 12.7 16.80 18.30 1.50 <===
Show 21118+8121 LOC 571 AC 2015 2015 1 199 2.1 16.80 18.60 1.80
Show 21118+8121 LOC 571 BC 1999 2015 6 259 13.6 18.30 18.60 0.30
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
87.3
Precise sep
12.737
Constellation
Cepheus
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21118+8121 LOC 571 AB 2015 6 87 12.7 16.80 18.30 V 211149.90+812039.8

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