21068+3408 FYM 123AF

 
 
21h 06m 46.78s +34 07' 56.2" P.A. 310 sep 31.2 mag 7.90,15.40 Sp A4III dist. 137.17 pc (447.45 l.y.)
 
 
Coord 2000
21068+3408
Discov num
FYM 123
Comp
AF
Coord arcsec 2000
21 06 46.78 +34 07 56.2
Date first
1998
Date last
2015
Obs
4
Pa first
308
Pa last
310
P.A. Now (θ)
310°
Sep first
30.7
Sep last
31.2
Sep. Now (ρ)
31.2"
Mag pri
7.90
Mag sec
15.40
delta mag (ΔM)
7.5
Spectral class
A4III (white)
Pri motion ra
+003
Sec motion ra
Pri motion dec
-028
Sec motion dec
Notes
W
Nature of this double is uncertain.
 
 
21068+3408 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 70925 21068+3408 STF2760 AB 1825 2016 240 33 5.3 7.90 8.74 0.84
Show 70925 21068+3408 STF2760 AC 1903 2016 18 150 57.4 7.90 11.85 3.95
Show 70925 21068+3408 WAL 136 AD 1934 2016 11 9 30.7 7.90 13.25 5.35
Show 70925 21068+3408 FYM 123 AE 1998 2016 5 211 27.0 7.90 14.10 6.20
Show 70925 21068+3408 FYM 123 AF 1998 2015 4 310 31.2 7.90 15.40 7.50 <===
Show 70925 21068+3408 FYM 123 AG 1998 2015 4 113 46.1 7.90 16.00 8.10
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
309.9
Precise sep
31.205
Constellation
Cygnus
SAO
70925
HIP
104210
Tycho2
2709-01318-1
HD
201156
BD
BD+33 4162
Distance
137.17
Distance ly
447.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21068+3408 FYM 123 AF 2012 3 310 31.2 7.90 15.40 A4III 210646.78+340756.2
21068+3408 FYM 123 AF 2015 4 310 31.2 7.90 15.40 A4III W 210646.78+340756.2

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