20247-6541 UC 4170

 
 
20h 24m 40.86s -65 41' 01.5" P.A. 221.00 sep 26.6 mag 10.39,12.81
 
 
Coord 2000
20247-6541
Discov num
UC 4170
Comp
Coord arcsec 2000
20 24 40.86 -65 41 01.5
Date first
1896
Date last
2015
Obs
7
Pa first
222
Pa last
221
P.A. Now (θ)
221°
Sep first
26.6
Sep last
26.6
Sep. Now (ρ)
26.6"
Mag pri
10.39
Mag sec
12.81
delta mag (ΔM)
2.42
Spectral class
Pri motion ra
+008
Sec motion ra
+007
Pri motion dec
-064
Sec motion dec
-068
Notes
V (Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.06 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221
Precise sep
26.572
Constellation
Pavo
Tycho2
9099-00533-1
Gaia DR2
25467085056
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20247-6541 UC 4170 2000 2 221 26.6 10.30 12.80 V 202440.86-654101.5
20247-6541 UC 4170 2010 5 221 26.5 10.39 12.81 V 202440.86-654101.5
20247-6541 UC 4170 2015 6 221 26.6 10.39 12.81 V 202440.86-654101.5

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