20120-0031 J   548

 
 
20h 12m 00.44s -00 37' 35.5" P.A. 139 sep 4.1 mag 9.40,13.00
 
 
Coord 2000
20120-0031
Discov num
J   548
Comp
Coord arcsec 2000
20 12 00.44 -00 37 35.5
Date first
1911
Date last
2015
Obs
6
Pa first
161
Pa last
139
P.A. Now (θ)
139°
Sep first
3.9
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
9.40
Mag sec
13.00
delta mag (ΔM)
3.6
Spectral class
Pri motion ra
+000
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
138.8
Precise sep
4.143
Constellation
Aquila
SAO
125555
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20120-0031 J 548 2000 4 142 4.1 9.40 13.00 N D 201200.44-003735.5
20120-0031 J 548 2013 5 139 4.1 9.40 13.00 201200.44-003735.5
20120-0031 J 548 2015 6 139 4.1 9.40 13.00 201200.44-003735.5

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