12420-2202 DON 547

12h 41m 56.69s -22 01' 35.7" P.A. 69 sep 2.6 mag 11.81,12.80

Coord 2000
12420-2202
Discov num
DON 547
Comp
Coord arcsec 2000
12 41 56.69 -22 01 35.7
Date first
1932
Date last
2015
Obs
4
Pa first
70
Pa last
69
P.A. Now (θ)
69°
Sep first
2.2
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
11.81
Mag sec
12.80
delta mag (ΔM)
0.99
Spectral class
Pri motion ra
-037
Sec motion ra
+021
Pri motion dec
-005
Sec motion dec
+022
Notes
N (See Notes)


rPM=1.714

This double is not physical.



OTHER CATALOGS AND DESIGNATIONS

Precise pa
68.8
Precise sep
2.575
Constellation
Corvus
SAO
181031
Tycho2
6110-01128-1
Gaia DR2
74825538432




WDS HISTORIC DATA

coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12420-2202 DON 547 1940 2 70 2.3 11.81 12.80 N 124156.69-220135.7
12420-2202 DON 547 2000 3 69 2.5 11.81 12.80 N 124156.69-220135.7
12420-2202 DON 547 2015 5 69 2.6 11.81 12.80 N 124156.69-220135.7

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