03475+2406 STFA  8AB (Alcyone)

 
 
03h 47m 29.06s +24 06' 18.8" P.A. 291 sep 117.6 mag 2.83,6.27 Sp B7IIIe dist. 123.61 pc (403.22 l.y.)
 
 
Coord 2000
03475+2406
Discov num
STFA  8
Comp
AB
Coord arcsec 2000
03 47 29.06 +24 06 18.8
Date first
1836
Date last
2016
Obs
36
Pa first
289
Pa last
291
P.A. Now (θ)
291°
Sep first
117.1
Sep last
117.6
Sep. Now (ρ)
117.6"
Mag pri
2.83
Mag sec
6.27
delta mag (ΔM)
3.44
Spectral class
B7IIIe (blue-white)
Pri motion ra
+019
Sec motion ra
+019
Pri motion dec
-044
Sec motion dec
-044
Notes
N W (See Notes, )
Nature of this double is uncertain.
 
 
03475+2406 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 76199 03475+2406 OCC 251 Aa,Ab 1971 1973 0 3.00 4.60 1.60
Show Alcyone 76199 03475+2406 STFA 8 AB 1836 2016 36 291 117.6 2.83 6.27 3.44 <===
Show 76199 03475+2406 STFA 8 AC 1868 2016 16 313 182.0 2.83 8.22 5.39
Show 76199 03475+2406 STFA 8 AD 1868 2016 16 297 191.8 2.83 8.73 5.90
Show 76199 03475+2406 HL 23 AE 1885 2016 5 232 78.4 2.83 15.00 12.17
Show 76199 03475+2406 HL 23 AF 1885 2016 5 232 144.5 2.83 13.02 10.19
Show 76199 03475+2406 HL 23 AG 1885 2016 5 54 200.0 2.83 11.84 9.01
Show 76199 03475+2406 HL 23 AH 1885 2016 5 44 222.8 2.83 11.72 8.89
Show 76192 03475+2406 STFA 8 BC 1824 2011 19 344 85.6 6.27 8.22 1.95
Show 76192 03475+2406 STFA 8 BD 1824 2011 19 305 75.3 6.27 8.73 2.46
Show 76191 03475+2406 STFA 8 CD 1868 2016 23 225 54.7 8.22 8.73 0.51
Show 76188 03475+2406 WSI 52 Da,Db 2005 2010 2 293 0.3 9.20 9.80 0.60
Decuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.6
Precise sep
117.63
Common name
Alcyone
Meaning
[Pleiades] queen from evil
Other names
25 TAU
Cdsa2 id
STFA 8 AB
Constellation
Taurus
SAO
76199
HIP
17702
HD
23630
HR
1165
GC
4541
BD
BD+23 541
Bayer
Eta Tauri
Bayer name
Eta Tau
Flamsteed
25 Tauri
Flamsteed name
25 Tau
Ra deg
3.7914055555555555
De deg
24.105222222222224
Distance
123.61
Distance ly
403.22
last precise pa
290.6
last precise sep
117.63
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03475+2406 STFA 8 AB 2003 31 290 117.5 2.83 6.27 B7IIIe N D 034729.06+240618.8
03475+2406 STFA 8 AB 2011 32 290 117.3 2.83 6.27 B7IIIe N D 034729.06+240618.8
03475+2406 STFA 8 AB 2013 35 290 116.9 2.83 6.27 B7IIIe N 034729.06+240618.8
03475+2406 STFA 8 AB 2016 36 291 117.6 2.83 6.27 B7IIIe N W 034729.06+240618.8

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