02507+5554 WAL  19AF

 
 
02H 50M 41.81S +55 53' 43.8" P.A. 24 SEP 57.4 MAG 3.76,11.44 SP M3IB-IIA DIST. 269.54 PC (879.24 L.Y.)
 
 
Coord 2000
02507+5554
Discov num
WAL  19
Comp
AF
Coord arcsec 2000
02 50 41.81 +55 53 43.8
Date first
1904
Date last
2012
Obs
6
Pa first
29
Pa last
24
P.A. Now (θ)
24°
Sep first
58.0
Sep last
57.4
Sep. Now (ρ)
57.4"
Mag pri
3.76
Mag sec
11.44
delta mag (ΔM)
7.68
Spectral class
M3Ib-IIa (red)
Pri motion ra
+016
Sec motion ra
+000
Pri motion dec
-014
Sec motion dec
-004
Notes
N (See Notes)
rPM=0.887
This double is not physical.
 
 
02507+5554 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Miram 23655 02507+5554 STF 307 AB 1779 2012 53 295 31.4 3.76 8.50 4.74
Show 23655 02507+5554 STF 307 AC 1878 2014 13 269 64.0 3.76 11.61 7.85
Show 23655 02507+5554 SHJ 34 AE 1925 2012 8 297 242.9 3.76 9.24 5.48
Show 23655 02507+5554 WAL 19 AF 1904 2012 6 24 57.4 3.76 11.44 7.68 <===
Show 02507+5554 WRD 1 CD 1878 2012 10 116 5.1 11.61 12.70 1.09
Show 02507+5554 FYM 161 CG 2003 2012 2 230 15.3 11.61 14.00 2.39
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
23655
HIP
13268
Tycho2
3704-01332-1
HD
17506
HR
834
GC
3390
BD
BD+55 714
Bayer
Eta Persei
Bayer name
Eta Per
Flamsteed
15 Persei
Flamsteed name
15 Per
Distance
269.54
Distance ly
879.24
last precise pa
24.4
last precise sep
57.4