18384+6332 STF2377AB

 
 
18h 38m 24.22s +63 31' 58.3" P.A. 338 sep 16.9 mag 6.97,9.83 Sp K2III dist. 228.31 pc (744.75 l.y.)
 
 
Coord 2000
18384+6332
Discov num
STF2377
Comp
AB
Coord arcsec 2000
18 38 24.22 +63 31 58.3
Date first
1898
Date last
2017
Obs
21
Pa first
337
Pa last
338
P.A. Now (θ)
338°
Sep first
16.8
Sep last
16.9
Sep. Now (ρ)
16.9"
Mag pri
6.97
Mag sec
9.83
delta mag (ΔM)
2.86
Spectral class
K2III (yellow-orange)
Pri motion ra
-021
Sec motion ra
-021
Pri motion dec
+016
Sec motion dec
+018
Notes
rPM=0.072 (< 0.3, Physical double)
This double is physical.
 
 
18384+6332 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17963 18384+6332 STF2377 AB 1898 2017 21 338 16.9 6.97 9.83 2.86 <===
Show 17963 18384+6332 WAL 150 AC 1898 2015 7 351 94.9 6.97 9.66 2.69
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
338.4
Precise sep
16.877
Constellation
Draco
SAO
17963
HIP
91396
Tycho2
4219-01871-1
HD
172923
BD
BD+63 1445
Distance
228.31
Distance ly
744.75
last precise pa
338.4
last precise sep
16.877
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18384+6332 STF2377 AB 2002 17 338 16.7 6.97 9.83 K2III D 183824.22+633158.3
18384+6332 STF2377 AB 2003 18 339 17.2 6.97 9.83 K2III D 183824.22+633158.3
18384+6332 STF2377 AB 2014 19 338 16.8 6.97 9.83 K2III D 183824.22+633158.3
18384+6332 STF2377 AB 2015 20 338 16.8 6.97 9.83 K2III 183824.22+633158.3
18384+6332 STF2377 AB 2017 21 338 16.9 6.97 9.83 K2III 183824.22+633158.3

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