17280-5218 HDO 272AB

 
 
17h 27m 57.62s -52 17' 49.3" P.A. 356 sep 31.5 mag 5.75,13.00 Sp K2III dist. 109.65 pc (357.68 l.y.)
 
 
Coord 2000
17280-5218
Discov num
HDO 272
Comp
AB
Coord arcsec 2000
17 27 57.62 -52 17 49.3
Date first
1891
Date last
2000
Obs
3
Pa first
355
Pa last
356
P.A. Now (θ)
356°
Sep first
17.0
Sep last
31.5
Sep. Now (ρ)
31.5"
Mag pri
5.75
Mag sec
13.00
delta mag (ΔM)
7.25
Spectral class
K2III (yellow-orange)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-065
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17280-5218 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 244763 17280-5218 HDO 272 AB 1891 2000 3 356 31.5 5.75 13.00 7.25 <===
Show 244763 17280-5218 HDO 272 AC 1891 2000 4 336 37.7 5.75 14.00 8.25
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
356.3
Precise sep
31.48
Constellation
Ara
SAO
244763
HIP
85470
Tycho2
8354-00415-1
HD
157753
HR
6483
CP
CP-5210662
Distance
109.65
Distance ly
357.68
last precise pa
356.3
last precise sep
31.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17280-5218 HDO 272 AB 1891 1 355 17.0 5.75 13.00 K2III 172757.62-521749.3
17280-5218 HDO 272 AB 2000 3 356 31.5 5.75 13.00 K2III 172757.62-521749.3

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