18057-2149 VVV  52

 
 
18h 05m 40.58s -21 49' 16.3" P.A. 46 sep 8.7 mag 14.80,15.60 Sp M3+M3
 
 
Coord 2000
18057-2149
Discov num
VVV  52
Comp
Coord arcsec 2000
18 05 40.58 -21 49 16.3
Date first
1999
Date last
1999
Obs
1
Pa first
46
Pa last
46
P.A. Now (θ)
46°
Sep first
8.7
Sep last
8.7
Sep. Now (ρ)
8.7"
Mag pri
14.80
Mag sec
15.60
delta mag (ΔM)
0.8
Spectral class
M3+M3 (red/red)
Pri motion ra
-021
Sec motion ra
-022
Pri motion dec
-116
Sec motion dec
-116
Notes
V (Proper motion indicates physical)
rPM=0.008 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
46.2
Precise sep
8.66
Constellation
Sagittarius
last precise pa
46.2
last precise sep
8.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18057-2149 VVV 52 1999 1 46 8.7 14.80 15.60 M3+M3 V 180540.58-214916.3
18057-2149 VVV 52 2000 1 46 8.6 14.80 15.60 M3+M3 V 180540.58-214916.3

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