17189-4920 B  2407

 
 
17h 18m 51.78s -49 20' 18.4" P.A. 121 sep 9.6 mag 7.72,12.20 Sp K4/5III
 
 
Coord 2000
17189-4920
Discov num
B  2407
Comp
Coord arcsec 2000
17 18 51.78 -49 20 18.4
Date first
1902
Date last
1998
Obs
3
Pa first
111
Pa last
121
P.A. Now (θ)
121°
Sep first
8.7
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
7.72
Mag sec
12.20
delta mag (ΔM)
4.48
Spectral class
K4/5III (yellow-orange)
Pri motion ra
-002
Sec motion ra
+002
Pri motion dec
+004
Sec motion dec
-016
Notes
rPM=1.265
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
121.2
Precise sep
9.639
Constellation
Ara
SAO
227809
Tycho2
8349-01698-1
HD
156219
last precise pa
121.2
last precise sep
9.639
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17189-4920 B 2407 1930 2 90 8.0 7.72 12.20 K4/5III 171851.78-492018.4
17189-4920 B 2407 1998 3 121 9.6 7.72 12.20 K4/5III 171851.78-492018.4

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