12491+4213 ES 2643

 
 
12h 49m 07.52s +42 13' 25.4" P.A. 46 sep 44.7 mag 8.60,8.81 Sp G9III
 
 
Coord 2000
12491+4213
Discov num
ES 2643
Comp
Coord arcsec 2000
12 49 07.52 +42 13 25.4
Date first
1895
Date last
2017
Obs
23
Pa first
51
Pa last
46
P.A. Now (θ)
46°
Sep first
47.7
Sep last
44.7
Sep. Now (ρ)
44.7"
Mag pri
8.60
Mag sec
8.81
delta mag (ΔM)
0.21
Spectral class
G9III (yellow)
Pri motion ra
-021
Sec motion ra
-059
Pri motion dec
-028
Sec motion dec
-017
Notes
N (See Notes)
rPM=0.644
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
45.7
Precise sep
44.7
Cdsa2 id
ES 2643
Constellation
Canes Venatici
SAO
44337
Tycho2
3023-00256-1
Ra deg
12.818755555555555
De deg
42.22372222222222
last precise pa
45.7
last precise sep
44.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12491+4213 ES 2643 2008 19 46 45.4 8.60 8.81 G9III N D 124907.52+421325.4
12491+4213 ES 2643 2010 22 46 45.1 8.60 8.81 G9III N 124907.52+421325.4
12491+4213 ES 2643 2017 23 46 44.7 8.60 8.81 G9III N 124907.52+421325.4

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