17480+5707 MLB1077AC

 
 
17H 47M 57.47S +57 06' 40.0" P.A. 29 SEP 23.4 MAG 9.24,13.90 SP G5
 
 
Coord 2000
17480+5707
Discov num
MLB1077
Comp
AC
Coord arcsec 2000
17 47 57.47 +57 06 40.0
Date first
1918
Date last
2015
Obs
4
Pa first
49
Pa last
29
P.A. Now (θ)
29°
Sep first
18.2
Sep last
23.4
Sep. Now (ρ)
23.4"
Mag pri
9.24
Mag sec
13.90
delta mag (ΔM)
4.66
Spectral class
G5 (yellow)
Pri motion ra
+022
Sec motion ra
+172
Pri motion dec
-082
Sec motion dec
+183
Notes
Nature of this double is uncertain.
 
 
17480+5707 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30580 17480+5707 MLB1077 AB 1918 2015 8 212 4.6 9.24 11.10 1.86
Show 30580 17480+5707 MLB1077 AC 1918 2015 4 29 23.4 9.24 13.90 4.66 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
30580
Tycho2
3910-00595-1
HD
238759
last precise pa
28.5
last precise sep
23.39