15511+5254 STF1984AB

 
 
15h 51m 10.09s +52 54' 25.2" P.A. 280 sep 6.4 mag 6.89,8.94 Sp A1V dist. 127.06 pc (414.47 l.y.)
 
 
Coord 2000
15511+5254
Discov num
STF1984
Comp
AB
Coord arcsec 2000
15 51 10.09 +52 54 25.2
Date first
1828
Date last
2016
Obs
69
Pa first
273
Pa last
280
P.A. Now (θ)
280°
Sep first
6.5
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
6.89
Mag sec
8.94
delta mag (ΔM)
2.05
Spectral class
A1V (white)
Pri motion ra
-008
Sec motion ra
-008
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
15511+5254 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 29691 15511+5254 STF1984 AB 1828 2016 69 280 6.4 6.89 8.94 2.05 <===
Show 29691 15511+5254 STF1984 AC 1910 2013 4 98 172.5 6.89 13.37 6.48
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280.4
Precise sep
6.392
Constellation
Draco
SAO
29691
HIP
77652
Tycho2
3870-01563-1
HD
142282
BD
BD+53 1816
Distance
127.06
Distance ly
414.47
last precise pa
280.4
last precise sep
6.392
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15511+5254 STF1984 AB 2007 53 279 6.3 6.89 8.94 A1V D 155110.09+525425.2
15511+5254 STF1984 AB 2010 56 278 6.4 6.89 8.94 A1V D 155110.09+525425.2
15511+5254 STF1984 AB 2012 60 278 6.4 6.89 8.94 A1V D 155110.09+525425.2
15511+5254 STF1984 AB 2016 69 280 6.4 6.89 8.94 A1V 155110.09+525425.2

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