18157-6233 B  1880AB

 
 
18h 15m 44.33s -62 32' 33.3" P.A. 250 sep 4.4 mag 10.12,10.19 Sp G8V+G8V
 
 
Coord 2000
18157-6233
Discov num
B  1880
Comp
AB
Coord arcsec 2000
18 15 44.33 -62 32 33.3
Date first
1920
Date last
2015
Obs
8
Pa first
248
Pa last
250
P.A. Now (θ)
250°
Sep first
3.9
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
10.12
Mag sec
10.19
delta mag (ΔM)
0.07
Spectral class
G8V+G8V (yellow/yellow)
Pri motion ra
-017
Sec motion ra
-025
Pri motion dec
-139
Sec motion dec
-136
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.061 (< 0.3, Physical double)
This double is physical.
 
 
18157-6233 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 254190 18157-6233 B 1880 AB 1920 2015 8 250 4.4 10.12 10.19 0.07 <===
Show 254190 18157-6233 LDS 628 AB,C 1920 2000 3 311 662.4 10.12 13.00 2.88
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
249.5
Precise sep
4.429
Constellation
Pavo
SAO
254190
Tycho2
9059-01962-1
last precise pa
249.5
last precise sep
4.429
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18157-6233 B 1880 AB 2000 6 249 4.3 10.12 10.19 G8V G8V N D 181544.32-623233.5
18157-6233 B 1880 AB 2015 8 250 4.4 10.12 10.19 G8V+G8V NV 181544.33-623233.3

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