18421-7704 LDS 645

 
 
18h 42m 17.55s -77 03' 43.0" P.A. 231 sep 68.2 mag 13.78,12.90
 
 
Coord 2000
18421-7704
Discov num
LDS 645
Comp
Coord arcsec 2000
18 42 17.55 -77 03 43.0
Date first
1920
Date last
2010
Obs
6
Pa first
225
Pa last
231
P.A. Now (θ)
231°
Sep first
69.0
Sep last
68.2
Sep. Now (ρ)
68.2"
Mag pri
13.78
Mag sec
12.90
delta mag (ΔM)
0.88
Spectral class
Pri motion ra
+037
Sec motion ra
+054
Pri motion dec
-030
Sec motion dec
-052
Notes
rPM=0.371
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
230.9
Precise sep
68.24
Constellation
Octans
last precise pa
230.9
last precise sep
68.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18421-7704 LDS 645 2000 2 231 68.3 13.80 14.20 D 184217.55-770343.0
18421-7704 LDS 645 2010 6 231 68.2 13.78 12.90 184217.55-770343.0

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