02173+5409 ES  618

 
 
02h 17m 23.77s +54 08' 47.7" P.A. 172 sep 2.8 mag 10.48,12.80
 
 
Coord 2000
02173+5409
Discov num
ES  618
Comp
Coord arcsec 2000
02 17 23.77 +54 08 47.7
Date first
1908
Date last
2011
Obs
3
Pa first
173
Pa last
172
P.A. Now (θ)
172°
Sep first
3.7
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
10.48
Mag sec
12.80
delta mag (ΔM)
2.32
Spectral class
Pri motion ra
-003
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
171.6
Precise sep
2.81
Constellation
Perseus
Tycho2
3686-02591-1
last precise pa
171.6
last precise sep
2.81
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02173+5409 ES 618 1935 2 178 2.9 10.48 12.80 021723.77+540847.7
02173+5409 ES 618 2011 3 172 2.8 10.48 12.80 021723.77+540847.7

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