02543+5246 EDG   1AB (Tau Per)

 
 
02h 54m 15.46s +52 45' 45.0" P.A. 107 sep 51.6 mag 3.95,12.28 Sp G4III+A4V dist. 77.94 pc (254.24 l.y.)
 
 
Coord 2000
02543+5246
Discov num
EDG   1
Comp
AB
Coord arcsec 2000
02 54 15.46 +52 45 45.0
Date first
1878
Date last
2009
Obs
8
Pa first
109
Pa last
107
P.A. Now (θ)
107°
Sep first
47.3
Sep last
51.6
Sep. Now (ρ)
51.6"
Mag pri
3.95
Mag sec
12.28
delta mag (ΔM)
8.33
Spectral class
G4III+A4V (yellow/white)
Pri motion ra
-001
Sec motion ra
+002
Pri motion dec
-004
Sec motion dec
-001
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
02543+5246 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 23685 02543+5246 LAB 1 Aa,Ab 1973 1994 12 98 0.0 4.20 5.90 1.70 Y
Show Tau Per 23685 02543+5246 EDG 1 AB 1878 2009 8 107 51.6 3.95 12.28 8.33 <===
Show 23685 02543+5246 BU 1376 AC 1878 2014 5 107 50.9 3.95 12.70 8.75
Show 23685 02543+5246 BU 1376 AD 1900 2002 3 338 42.9 3.95 11.50 7.55
Show 02543+5246 BU 1376 BC 1878 2009 7 86 4.2 12.28 12.70 0.42
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Tau Per
Constellation
Perseus
SAO
23685
HIP
13531
HD
17878
HR
854
GC
3462
BD
BD+52 641
Bayer
Tau Persei
Bayer name
Tau Per
Flamsteed
18 Persei
Flamsteed name
18 Per
Distance
77.94
Distance ly
254.24
last precise pa
107.3
last precise sep
51.58
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02543+5246 EDG 1 AB 1999 6 107 51.1 3.95 12.28 G4III+A4V D 025415.46+524545.0
02543+5246 EDG 1 AB 2009 7 107 51.6 3.95 12.28 G4III+A4V D 025415.46+524545.0

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