21056+1443 HEI  78AC

 
 
21h 05m 35.39s +14 42' 46.7" P.A. 169 sep 50.1 mag 10.21,11.85
 
 
Coord 2000
21056+1443
Discov num
HEI  78
Comp
AC
Coord arcsec 2000
21 05 35.39 +14 42 46.7
Date first
1979
Date last
2015
Obs
6
Pa first
170
Pa last
169
P.A. Now (θ)
169°
Sep first
49.5
Sep last
50.1
Sep. Now (ρ)
50.1"
Mag pri
10.21
Mag sec
11.85
delta mag (ΔM)
1.64
Spectral class
Pri motion ra
+004
Sec motion ra
+028
Pri motion dec
+003
Sec motion dec
+004
Notes
N (See Notes)
rPM=0.849
This double is not physical.
 
 
21056+1443 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21056+1443 HEI 78 AB 1970 2005 4 233 1.8 10.80 11.30 0.50
Show 21056+1443 HEI 78 AC 1979 2015 6 169 50.1 10.21 11.85 1.64 <===
Show 21056+1443 TDT2738 CD 1991 1991 1 190 1.9 11.85 12.04 0.19
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
169.1
Precise sep
50.09
Constellation
Delphinus
Tycho2
1116-02335-1
last precise pa
169.1
last precise sep
50.09
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21056+1443 HEI 78 AC 2001 4 170 49.9 10.80   210535.39+144246.7
21056+1443 HEI 78 AC 2015 6 169 50.1 10.21 11.85 N 210535.39+144246.7

If you need more information about this double, apply for a data request form to the WDS.