13173+2840 ES  440

 
 
13h 17m 20.47s +28 40' 07.6" P.A. 180 sep 2.6 mag 10.90,11.20 Sp G5
 
 
Coord 2000
13173+2840
Discov num
ES  440
Comp
Coord arcsec 2000
13 17 20.47 +28 40 07.6
Date first
1907
Date last
2016
Obs
14
Pa first
2
Pa last
180
P.A. Now (θ)
180°
Sep first
2.6
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
10.90
Mag sec
11.20
delta mag (ΔM)
0.3
Spectral class
G5 (yellow)
Pri motion ra
+010
Sec motion ra
Pri motion dec
+029
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180.3
Precise sep
2.611
Cdsa2 id
ES 440
Constellation
Coma Berenices
Tycho2
1996-00236-1
Ra deg
13.289019444444444
De deg
28.66877777777778
last precise pa
180.3
last precise sep
2.611
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13173+2840 ES 440 2003 8 181 2.3 10.90 11.20 131720.47+284007.6
13173+2840 ES 440 2011 9 181 2.3 10.90 11.20 131720.47+284007.6
13173+2840 ES 440 2012 11 181 2.3 10.90 11.20 G5 131720.47+284007.6
13173+2840 ES 440 2015 12 182 2.2 10.90 11.20 G5 131720.47+284007.6
13173+2840 ES 440 2016 14 180 2.6 10.90 11.20 G5 131720.47+284007.6

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