17024-4855 R   288AB

 
 
17h 02m 21.72s -48 55' 06.8" P.A. 52 sep 2.5 mag 9.13,9.84 Sp B7V dist. 1923.08 pc (6273.09 l.y.)
 
 
Coord 2000
17024-4855
Discov num
R   288
Comp
AB
Coord arcsec 2000
17 02 21.72 -48 55 06.8
Date first
1881
Date last
1998
Obs
15
Pa first
56
Pa last
52
P.A. Now (θ)
52°
Sep first
2.0
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
9.13
Mag sec
9.84
delta mag (ΔM)
0.71
Spectral class
B7V (blue-white)
Pri motion ra
-016
Sec motion ra
+002
Pri motion dec
-015
Sec motion dec
-006
Notes
rPM=0.918
This double is not physical.
 
 
17024-4855 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227563 17024-4855 R 288 AB 1881 1998 15 52 2.5 9.13 9.84 0.71 <===
Show 227563 17024-4855 HJ 4906 AC 1834 1999 15 235 16.2 9.13 10.62 1.49
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
51.6
Precise sep
2.472
Constellation
Ara
SAO
227563
HIP
83371
Tycho2
8335-00163-1
HD
153507
CD
CD-4811379
Distance
1923.08
Distance ly
6273.09
last precise pa
51.6
last precise sep
2.472
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17024-4855 R 288 AB 1991 13 50 2.5 9.13 9.84 B7V 170221.72-485506.8
17024-4855 R 288 AB 1998 15 52 2.5 9.13 9.84 B7V 170221.72-485506.8

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