18187-1631 TOB 281

 
 
18h 18m 40.73s -16 31' 24.3" P.A. 81 sep 21.3 mag 11.15,11.48
 
 
Coord 2000
18187-1631
Discov num
TOB 281
Comp
Coord arcsec 2000
18 18 40.73 -16 31 24.3
Date first
1905
Date last
2010
Obs
9
Pa first
81
Pa last
81
P.A. Now (θ)
81°
Sep first
21.1
Sep last
21.3
Sep. Now (ρ)
21.3"
Mag pri
11.15
Mag sec
11.48
delta mag (ΔM)
0.33
Spectral class
Pri motion ra
+000
Sec motion ra
+002
Pri motion dec
+000
Sec motion dec
-001
Notes
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80.5
Precise sep
21.25
Constellation
Sagittarius
Tycho2
6265-01706-1
last precise pa
80.5
last precise sep
21.25
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18187-1631 TOB 281 1999 5 80 21.3 11.15 11.48 D 181840.73-163124.3
18187-1631 TOB 281 2000 7 80 21.3 11.15 11.48 D 181840.73-163124.3
18187-1631 TOB 281 2010 9 80 21.3 11.15 11.48 181840.73-163124.3

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