21129+3014 FYM 141AG

 
 
21h 12m 56.19s +30 13' 36.9" P.A. 97 sep 70.7 mag 3.30,15.10 Sp G8+III-a dist. 43.88 pc (143.14 l.y.)
 
 
Coord 2000
21129+3014
Discov num
FYM 141
Comp
AG
Coord arcsec 2000
21 12 56.19 +30 13 36.9
Date first
1998
Date last
2015
Obs
4
Pa first
98
Pa last
97
P.A. Now (θ)
97°
Sep first
70.5
Sep last
70.7
Sep. Now (ρ)
70.7"
Mag pri
3.30
Mag sec
15.10
delta mag (ΔM)
11.8
Spectral class
G8+III-a (yellow)
Pri motion ra
+007
Sec motion ra
Pri motion dec
-068
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
21129+3014 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 71070 21129+3014 BAS 7 Aa,Ab 2000 2000 1 246 0.0 3.20 13.20 10.00
Show Zet Cyg 71070 21129+3014 BUP 227 AB 1900 2015 8 205 65.2 3.30 11.70 8.40
Show 71070 21129+3014 BUP 227 AC 1907 2015 7 300 91.5 3.30 12.73 9.43
Show 71070 21129+3014 BUP 227 AD 1835 2015 8 63 105.3 3.30 12.70 9.40
Show 71070 21129+3014 FYM 141 AE 2002 2015 3 76 42.8 3.30 14.10 10.80
Show 71070 21129+3014 FYM 141 AF 1998 2015 4 267 63.6 3.30 14.00 10.70
Show 71070 21129+3014 FYM 141 AG 1998 2015 4 97 70.7 3.30 15.10 11.80 <===
Octuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.3
Precise sep
70.66
Constellation
Cygnus
SAO
71070
HIP
104732
Tycho2
2702-02764-1
HD
202109
HR
8115
GC
29661
BD
BD+29 4348
Bayer
Zeta Cygni
Bayer name
Zet Cyg
Flamsteed
64 Cygni
Flamsteed name
64 Cyg
Distance
43.88
Distance ly
143.14
last precise pa
97.3
last precise sep
70.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21129+3014 FYM 141 AG 2012 3 98 70.0 3.30 15.10 G8+III-a N 211256.19+301336.9
21129+3014 FYM 141 AG 2015 4 97 70.7 3.30 15.10 G8+III-a N 211256.19+301336.9

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