21306+4213 FYM 336AD

 
 
21h 30m 35.00s +42 12' 40.4" P.A. 280 sep 19.4 mag 8.27,14.70 Sp A7V
 
 
Coord 2000
21306+4213
Discov num
FYM 336
Comp
AD
Coord arcsec 2000
21 30 35.00 +42 12 40.4
Date first
1998
Date last
2015
Obs
3
Pa first
279
Pa last
280
P.A. Now (θ)
280°
Sep first
19.5
Sep last
19.4
Sep. Now (ρ)
19.4"
Mag pri
8.27
Mag sec
14.70
delta mag (ΔM)
6.43
Spectral class
A7V (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21306+4213 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21306+4213 STT 441 AB 1847 2015 18 328 6.1 8.27 11.26 2.99
Show 21306+4213 FYM 336 AC 1998 2015 3 123 9.5 8.27 14.90 6.63
Show 21306+4213 FYM 336 AD 1998 2015 3 280 19.4 8.27 14.70 6.43 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280
Precise sep
19.4
Cdsa2 id
FYM 336 AD
Constellation
Cygnus
Ra deg
21.509722222222223
De deg
42.211222222222226
last precise pa
280
last precise sep
19.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21306+4213 FYM 336 AD 2015 2 280 19.4 8.27 14.70 A7V 213035.00+421240.4

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