02308+5533 STF 270AB

 
 
02h 30m 50.65s +55 32' 54.2" P.A. 306 sep 21.3 mag 7.00,9.66 Sp F4V dist. 54.7 pc (178.43 l.y.)
 
 
Coord 2000
02308+5533
Discov num
STF 270
Comp
AB
Coord arcsec 2000
02 30 50.65 +55 32 54.2
Date first
1829
Date last
2016
Obs
39
Pa first
302
Pa last
306
P.A. Now (θ)
306°
Sep first
21.2
Sep last
21.3
Sep. Now (ρ)
21.3"
Mag pri
7.00
Mag sec
9.66
delta mag (ΔM)
2.66
Spectral class
F4V (yellow-white)
Pri motion ra
+083
Sec motion ra
+083
Pri motion dec
-097
Sec motion dec
-094
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.023 (< 0.3, Physical double)
This double is physical.
 
 
02308+5533 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 23389 02308+5533 STF 270 AB 1829 2016 39 306 21.3 7.00 9.66 2.66 <===
Show 23389 02308+5533 STF 270 AC 1902 2013 10 334 47.9 7.00 11.37 4.37
Show 23389 02308+5533 STF 270 AD 1902 2013 7 281 51.0 7.00 14.20 7.20
Show 02308+5533 STF 270 BD 1999 2012 3 266 32.4 9.66 14.20 4.54
Show 02308+5533 RAO 42 BE 1999 2012 3 207 15.7 9.66 14.70 5.04
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
305.6
Precise sep
21.267
Constellation
Perseus
SAO
23389
HIP
11696
Tycho2
3691-00669-1
HD
15407
BD
BD+54 561
Distance
54.7
Distance ly
178.43
last precise pa
305.6
last precise sep
21.267
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02308+5533 STF 270 AB 2006 31 305 21.5 7.00 9.66 F4V DV 023050.57+553255.1
02308+5533 STF 270 AB 2008 32 305 21.4 7.00 9.66 F4V DV 023050.57+553255.1
02308+5533 STF 270 AB 2015 38 305 21.1 7.00 9.66 F4V NV 023050.57+553255.1
02308+5533 STF 270 AB 2016 39 306 21.3 7.00 9.66 F4V NV 023050.65+553254.2

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