18239+5848 STF2323BC

 
 
18h 23m 54.53s +58 48' 06.5" P.A. 19 sep 88.5 mag 8.07,7.95 Sp F5V dist. 56.47 pc (184.21 l.y.)
 
 
Coord 2000
18239+5848
Discov num
STF2323
Comp
BC
Coord arcsec 2000
18 23 54.53 +58 48 06.5
Date first
1836
Date last
2015
Obs
35
Pa first
22
Pa last
19
P.A. Now (θ)
19°
Sep first
86.0
Sep last
88.5
Sep. Now (ρ)
88.5"
Mag pri
8.07
Mag sec
7.95
delta mag (ΔM)
0.12
Spectral class
F5V (yellow-white)
Pri motion ra
-038
Sec motion ra
-041
Pri motion dec
+062
Sec motion dec
+061
Notes
N (See Notes)
rPM=0.043 (< 0.3, Physical double)
This double is physical.
 
 
18239+5848 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 39 Dra 30949 18239+5848 STF2323 AB 1825 2015 132 348 3.7 5.06 8.07 3.01 Y
Show 30949 18239+5848 STF2323 AC 1823 2015 63 19 89.4 5.06 7.95 2.89
Show 30949 18239+5848 STF2323 AF 1910 2008 3 80 150.5 5.06 12.90 7.84
Show 30949 18239+5848 STF2323 AG 1918 2003 3 244 35.8 5.06 13.30 8.24
Show 30949 18239+5848 STF2323 AH 1918 2000 2 93 44.2 5.06 14.40 9.34
Show 30949 18239+5848 STF2323 BC 1836 2015 35 19 88.5 8.07 7.95 0.12 <===
Show 30950 18239+5848 STF2323 CD 1880 2003 6 68 198.2 7.90 11.00 3.10
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.4
Precise sep
88.5
Other name
b Dra
Cdsa2 id
STF 2323 BC
Constellation
Draco
SAO
30949
HIP
90156
HD
170073
HR
6923
GC
25151
BD
BD+58 1809
Flamsteed
39 Draconis
Flamsteed name
39 Dra
Ra deg
18.398480555555555
De deg
58.80180555555555
Distance
56.47
Distance ly
184.21
last precise pa
19.4
last precise sep
88.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18239+5848 STF2323 BC 2000 33 21 85.6 7.90 7.30 N D 182354.53+584806.5
18239+5848 STF2323 BC 2003 34 20 88.7 8.07 7.95 N D 182354.53+584806.5
18239+5848 STF2323 BC 2015 35 19 88.5 8.07 7.95 F5V N 182354.53+584806.5

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