18448+3736 BU  968AB (Zet1 Lyr)

 
 
18h 44m 46.36s +37 36' 18.4" P.A. 50 sep 22.3 mag 4.34,15.80 Sp F0IVv dist. 47.87 pc (156.15 l.y.)
 
 
Coord 2000
18448+3736
Discov num
BU  968
Comp
AB
Coord arcsec 2000
18 44 46.36 +37 36 18.4
Date first
1889
Date last
2012
Obs
9
Pa first
49
Pa last
50
P.A. Now (θ)
50°
Sep first
26.9
Sep last
22.3
Sep. Now (ρ)
22.3"
Mag pri
4.34
Mag sec
15.80
delta mag (ΔM)
11.46
Spectral class
F0IVv (yellow-white)
Pri motion ra
+029
Sec motion ra
Pri motion dec
+027
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18448+3736 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Zet1 Lyr 67321 18448+3736 BU 968 AB 1889 2012 9 50 22.3 4.34 15.80 11.46 <===
Show 67321 18448+3736 BU 968 AC 1880 2012 8 270 48.9 4.34 13.30 8.96
Show 67321 18448+3736 STFA 38 AD 1779 2016 110 150 43.9 4.34 5.62 1.28
Show 67321 18448+3736 BU 968 AE 1880 2012 9 298 62.5 4.34 13.50 9.16
Show 67321 18448+3736 FYM 42 AF 2000 2012 3 330 77.5 4.34 13.70 9.36
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
49.6
Precise sep
22.27
Name
Zet1 Lyr
Constellation
Lyra
SAO
67321
HIP
91971
Tycho2
3118-02080-1
HD
173648
HR
7056
GC
25676
BD
BD+37 3222
Bayer
Zeta 1 Lyrae
Bayer name
Zet1 Lyr
Flamsteed
6 Lyrae
Flamsteed name
6 Lyr
Distance
47.87
Distance ly
156.15
last precise pa
49.6
last precise sep
22.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18448+3736 BU 968 AB 2007 6 49 22.8 4.34 15.80 F0IVv N D 184446.34+373618.2
18448+3736 BU 968 AB 2008 7 51 23.3 4.34 15.80 F0IVv N D 184446.34+373618.2
18448+3736 BU 968 AB 2012 9 50 22.3 4.34 15.80 F0IVv N D 184446.34+373618.2

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