02507+5554 STF 307AB (Miram)

 
 
02H 50M 41.81S +55 53' 43.8" P.A. 295 SEP 31.4 MAG 3.76,8.50 SP M3IB-IIA DIST. 269.54 PC (879.24 L.Y.)
 
 
Coord 2000
02507+5554
Discov num
STF 307
Comp
AB
Coord arcsec 2000
02 50 41.81 +55 53 43.8
Date first
1779
Date last
2012
Obs
53
Pa first
290
Pa last
295
P.A. Now (θ)
295°
Sep first
26.0
Sep last
31.4
Sep. Now (ρ)
31.4"
Mag pri
3.76
Mag sec
8.50
delta mag (ΔM)
4.74
Spectral class
M3Ib-IIa (red)
Pri motion ra
+016
Sec motion ra
+016
Pri motion dec
-014
Sec motion dec
-014
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
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
 
 
Common name
Miram
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
295.1
last precise sep
31.38