18375-2130 ARA1548

 
 
18h 37m 27.71s -21 29' 45.7" P.A. 336 sep 14.8 mag 8.52,12.80 Sp Ap dist. 310.56 pc (1013.05 l.y.)
 
 
Coord 2000
18375-2130
Discov num
ARA1548
Comp
Coord arcsec 2000
18 37 27.71 -21 29 45.7
Date first
1921
Date last
2010
Obs
6
Pa first
338
Pa last
336
P.A. Now (θ)
336°
Sep first
13.4
Sep last
14.8
Sep. Now (ρ)
14.8"
Mag pri
8.52
Mag sec
12.80
delta mag (ΔM)
4.28
Spectral class
Ap (white)
Pri motion ra
+006
Sec motion ra
-006
Pri motion dec
-006
Sec motion dec
+010
Notes
rPM=1.715
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
336.4
Precise sep
14.76
Constellation
Sagittarius
SAO
187061
HIP
91304
Tycho2
6279-01122-1
HD
171771
BD
BD-21 5070
Distance
310.56
Distance ly
1013.05
last precise pa
336.4
last precise sep
14.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18375-2130 ARA1548 1998 4 337 14.7 8.40 12.80 Ap D 183727.71-212945.7
18375-2130 ARA1548 1999 5 336 14.6 8.40 12.80 Ap D 183727.71-212945.7
18375-2130 ARA1548 2010 6 337 14.4 8.52 12.80 Ap 183727.71-212945.7

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