18124-2107 ARA1519

 
 
18h 12m 20.69s -21 06' 30.8" P.A. 235 sep 8.2 mag 10.16,11.90 Sp M4
 
 
Coord 2000
18124-2107
Discov num
ARA1519
Comp
Coord arcsec 2000
18 12 20.69 -21 06 30.8
Date first
1920
Date last
2000
Obs
3
Pa first
235
Pa last
235
P.A. Now (θ)
235°
Sep first
8.3
Sep last
8.2
Sep. Now (ρ)
8.2"
Mag pri
10.16
Mag sec
11.90
delta mag (ΔM)
1.74
Spectral class
M4 (red)
Pri motion ra
+005
Sec motion ra
-002
Pri motion dec
-002
Sec motion dec
+001
Notes
rPM=1.414
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
234.8
Precise sep
8.228
Constellation
Sagittarius
Tycho2
6276-02108-1
last precise pa
234.8
last precise sep
8.228
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18124-2107 ARA1519 1920 1 235 8.3 10.16 11.90 181220.69-210630.8
18124-2107 ARA1519 2000 3 235 8.2 10.16 11.90 181220.69-210630.8

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