18540-4716 I   112AB

 
 
18h 54m 01.61s -47 16' 27.4" P.A. 193 sep 2.1 mag 7.11,9.05 Sp F5V
 
 
Coord 2000
18540-4716
Discov num
I   112
Comp
AB
Coord arcsec 2000
18 54 01.61 -47 16 27.4
Date first
1896
Date last
2016
Obs
18
Pa first
180
Pa last
193
P.A. Now (θ)
193°
Sep first
2.0
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
7.11
Mag sec
9.05
delta mag (ΔM)
1.94
Spectral class
F5V (yellow-white)
Pri motion ra
-008
Sec motion ra
-008
Pri motion dec
-035
Sec motion dec
-035
Notes
Nature of this double is uncertain.
 
 
18540-4716 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18540-4716 I 112 AB 1896 2016 18 193 2.1 7.11 9.05 1.94 <===
Show 18540-4716 DUN 224 AC 1835 2016 21 62 87.2 7.11 7.28 0.17
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
192.9
Precise sep
2.11
Cdsa2 id
I 112 AB
Constellation
Telescopium
Tycho2
8377-00464-1
HD
174691
Ra deg
18.90044722222222
De deg
-47.274277777777776
last precise pa
192.9
last precise sep
2.11
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18540-4716 I 112 AB 1991 16 190 1.8 7.11 9.05 F5V D 185401.61-471627.4
18540-4716 I 112 AB 2010 17 191 1.9 7.11 9.05 F5V 185401.61-471627.4
18540-4716 I 112 AB 2016 18 193 2.1 7.11 9.05 F5V 185401.61-471627.4

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