20174-4750 UC 4139

 
 
20h 17m 22.17s -47 49' 59.8" P.A. 4 sep 30.2 mag 12.80,15.10
 
 
Coord 2000
20174-4750
Discov num
UC 4139
Comp
Coord arcsec 2000
20 17 22.17 -47 49 59.8
Date first
1996
Date last
2015
Obs
6
Pa first
4
Pa last
4
P.A. Now (θ)
Sep first
30.2
Sep last
30.2
Sep. Now (ρ)
30.2"
Mag pri
12.80
Mag sec
15.10
delta mag (ΔM)
2.3
Spectral class
Pri motion ra
+008
Sec motion ra
+005
Pri motion dec
-074
Sec motion dec
-072
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.048 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
4.1
Precise sep
30.174
Constellation
Telescopium
Gaia DR2
12785444096
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20174-4750 UC 4139 1999 2 4 30.2 12.80 15.10 V 201722.17-474959.8
20174-4750 UC 4139 2000 2 4 30.2 12.80 15.10 V 201722.17-474959.8
20174-4750 UC 4139 2010 5 4 30.2 12.80 15.10 V R 201722.17-474959.8
20174-4750 UC 4139 2015 6 4 30.2 12.80 15.10 V R 201722.17-474959.8

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