16442+2331 STF2094AB

 
 
16h 44m 10.57s +23 31' 02.8" P.A. 74 sep 1.1 mag 7.48,7.87 Sp F5III dist. 156.49 pc (510.47 l.y.)
 
 
Coord 2000
16442+2331
Discov num
STF2094
Comp
AB
Coord arcsec 2000
16 44 10.57 +23 31 02.8
Date first
1831
Date last
2015
Obs
183
Pa first
83
Pa last
74
P.A. Now (θ)
74°
Sep first
1.6
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
7.48
Mag sec
7.87
delta mag (ΔM)
0.39
Spectral class
F5III (yellow-white)
Pri motion ra
-013
Sec motion ra
-013
Pri motion dec
+009
Sec motion dec
+009
Notes
Nature of this double is uncertain.
 
 
16442+2331 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 84572 16442+2331 STF2094 AB 1831 2015 183 74 1.1 7.48 7.87 0.39 <===
Show 84572 16442+2331 STF2094 AC 1830 2013 25 310 24.7 7.48 11.70 4.22
Show 84572 16442+2331 SMR 63 AD 1999 2013 2 13 43.6 5.19 12.74 7.55
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
74.2
Precise sep
1.09
Constellation
Hercules
SAO
84572
HIP
81933
Tycho2
2045-00523-1
HD
151070
BD
BD+23 2984
Distance
156.49
Distance ly
510.47
last precise pa
74.2
last precise sep
1.09
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16442+2331 STF2094 AB 2007 184 73 1.2 7.48 7.87 F5III D 164410.57+233102.8
16442+2331 STF2094 AB 2010 189 74 1.1 7.48 7.87 F5III D 164410.57+233102.8
16442+2331 STF2094 AB 2012 187 73 1.1 7.48 7.87 F5III D 164410.57+233102.8
16442+2331 STF2094 AB 2015 179 77 1.3 7.48 7.87 F5III 164410.57+233102.8

If you need more information about this double, apply for a data request form to the WDS.