20183+2002 HJ  912AC

 
 
20h 18m 17.00s +20 01' 42.9" P.A. 170 sep 89.6 mag 10.65,9.02
 
 
Coord 2000
20183+2002
Discov num
HJ  912
Comp
AC
Coord arcsec 2000
20 18 17.00 +20 01 42.9
Date first
1904
Date last
2015
Obs
14
Pa first
169
Pa last
170
P.A. Now (θ)
170°
Sep first
86.6
Sep last
89.6
Sep. Now (ρ)
89.6"
Mag pri
10.65
Mag sec
9.02
delta mag (ΔM)
1.63
Spectral class
Pri motion ra
+001
Sec motion ra
-006
Pri motion dec
-002
Sec motion dec
-031
Notes
rPM=0.945
This double is not physical.
 
 
20183+2002 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20183+2002 HJ 912 AB 1827 2015 18 78 5.1 10.65 10.53 0.12
Show 20183+2002 HJ 912 AC 1904 2015 14 170 89.6 10.65 9.02 1.63 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
169.7
Precise sep
89.645
Constellation
Sagitta
SAO
105942
Tycho2
1639-00598-1
Gaia DR2
36189590656
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20183+2002 HJ 912 AC 2005 6 170 88.4 10.65 9.02 201817.00+200142.9
20183+2002 HJ 912 AC 2009 7 170 89.4 10.65 9.02 201817.00+200142.9
20183+2002 HJ 912 AC 2014 10 170 88.5 10.65 9.02 201817.00+200142.9
20183+2002 HJ 912 AC 2015 11 170 89.6 10.65 9.02 201817.00+200142.9

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