18166-1247 TSN  45

 
 
18h 16m 34.85s -12 46' 42.2" P.A. 315 sep 15.6 mag 17.70,15.40 Sp M2.0+M4.5
 
 
Coord 2000
18166-1247
Discov num
TSN  45
Comp
Coord arcsec 2000
18 16 34.85 -12 46 42.2
Date first
1999
Date last
2010
Obs
5
Pa first
315
Pa last
315
P.A. Now (θ)
315°
Sep first
15.7
Sep last
15.6
Sep. Now (ρ)
15.6"
Mag pri
17.70
Mag sec
15.40
delta mag (ΔM)
2.3
Spectral class
M2.0+M4.5 (red/red)
Pri motion ra
-242
Sec motion ra
-218
Pri motion dec
-189
Sec motion dec
-211
Notes
V B (Proper motion indicates physical, Blue magnitudes)
rPM=0.106 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314.9
Precise sep
15.565
Constellation
Serpens
last precise pa
314.9
last precise sep
15.565
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18166-1247 TSN 45 2000 2 316 15.7 17.70 15.40 +K: V B 181634.85-124642.2
18166-1247 TSN 45 2010 4 315 15.6 17.70 15.40 +K: V B 181634.85-124642.2

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