16278+2054 STH   3AB

 
 
16h 27m 46.52s +20 53' 44.2" P.A. 286 sep 2.3 mag 8.37,12.40 Sp G dist. 76.45 pc (249.38 l.y.)
 
 
Coord 2000
16278+2054
Discov num
STH   3
Comp
AB
Coord arcsec 2000
16 27 46.52 +20 53 44.2
Date first
1887
Date last
1998
Obs
15
Pa first
299
Pa last
286
P.A. Now (θ)
286°
Sep first
1.5
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
8.37
Mag sec
12.40
delta mag (ΔM)
4.03
Spectral class
G (yellow)
Pri motion ra
+034
Sec motion ra
+072
Pri motion dec
-119
Sec motion dec
-180
Notes
rPM=0.371
Nature of this double is uncertain.
 
 
16278+2054 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 84390 16278+2054 STH 3 AB 1887 1998 15 286 2.3 8.37 12.40 4.03 <===
Show 84390 16278+2054 STT 311 AC 1843 2013 57 321 11.0 8.37 11.52 3.15
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
285.7
Precise sep
2.32
Constellation
Hercules
SAO
84390
HIP
80625
Tycho2
1518-00242-1
HD
148492
BD
BD+21 2926
Distance
76.45
Distance ly
249.38
last precise pa
285.7
last precise sep
2.32
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16278+2054 STH 3 AB 1998 15 286 2.3 8.37 12.40 G 162746.52+205344.2
16278+2054 STH 3 AB 2001 16 316 3.6 8.37 12.40 G 162746.52+205344.2

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