20400+5515 HJ 1562AB

 
 
20h 39m 58.19s +55 14' 59.7" P.A. 167.00 sep 21.7 mag 8.69,10.59 Sp F8
 
 
Coord 2000
20400+5515
Discov num
HJ 1562
Comp
AB
Coord arcsec 2000
20 39 58.19 +55 14 59.7
Date first
1828
Date last
2015
Obs
13
Pa first
166
Pa last
167
P.A. Now (θ)
167°
Sep first
18.0
Sep last
21.7
Sep. Now (ρ)
21.7"
Mag pri
8.69
Mag sec
10.59
delta mag (ΔM)
1.9
Spectral class
F8 (yellow-white)
Pri motion ra
+018
Sec motion ra
+016
Pri motion dec
+013
Sec motion dec
+013
Notes
V (Proper motion indicates physical)
rPM=0.09 (< 0.3, Physical double)
This double is physical.
 
 
20400+5515 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 32781 20400+5515 HJ 1562 AB 1828 2015 13 167 21.7 8.69 10.59 1.90 <===
Show 32781 20400+5515 VBS 31 AC 1908 2015 7 13 45.6 8.69 12.24 3.55
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
167.2
Precise sep
21.694
Constellation
Cygnus
SAO
32781
Tycho2
3954-00241-1
Gaia DR2
34732939264
HD
197225
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20400+5515 HJ 1562 AB 1999 6 167 21.7 8.69 10.59 F8 D 203958.19+551459.7
20400+5515 HJ 1562 AB 2009 7 167 21.7 8.69 10.59 F8 D 203958.19+551459.7
20400+5515 HJ 1562 AB 2015 10 167 21.7 8.69 10.59 F8 203958.19+551459.7

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