20308-7811 UC 4203

 
 
20h 30m 45.59s -78 10' 38.7" P.A. 307.00 sep 21.5 mag 12.10,14.50
 
 
Coord 2000
20308-7811
Discov num
UC 4203
Comp
Coord arcsec 2000
20 30 45.59 -78 10 38.7
Date first
1996
Date last
2015
Obs
7
Pa first
307
Pa last
307
P.A. Now (θ)
307°
Sep first
21.6
Sep last
21.5
Sep. Now (ρ)
21.5"
Mag pri
12.10
Mag sec
14.50
delta mag (ΔM)
2.4
Spectral class
Pri motion ra
+004
Sec motion ra
+000
Pri motion dec
-061
Sec motion dec
-058
Notes
V R (Proper motion indicates physical, Red magnitudes)
Visually invisible, K-band or other infrared star rPM=0.082 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
307.1
Precise sep
21.546
Constellation
Octans
Tycho2
9464-01326-1
Gaia DR2
73585688320
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20308-7811 UC 4203 2000 2 307 21.6 12.10 14.50 V 203045.59-781038.7
20308-7811 UC 4203 2010 5 307 21.5 12.10 14.50 V R 203045.59-781038.7
20308-7811 UC 4203 2015 6 307 21.5 12.10 14.50 V R 203045.59-781038.7

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