18578-3944 UC 3742

 
 
18h 57m 49.17s -39 44' 29.3" P.A. 160.00 sep 38.7 mag 16.00,16.50
 
 
Coord 2000
18578-3944
Discov num
UC 3742
Comp
Coord arcsec 2000
18 57 49.17 -39 44 29.3
Date first
1996
Date last
2015
Obs
5
Pa first
163
Pa last
160
P.A. Now (θ)
160°
Sep first
40.8
Sep last
38.7
Sep. Now (ρ)
38.7"
Mag pri
16.00
Mag sec
16.50
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-026
Sec motion ra
-029
Pri motion dec
-044
Sec motion dec
-061
Notes
V (Proper motion indicates physical)
rPM=0.256 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
159.7
Precise sep
38.667
Constellation
Hydra
Gaia DR2
6717014154401473536
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18578-3944 UC 3742 1999 2 163 41.0 16.00 16.50 V 185749.17-394429.3
18578-3944 UC 3742 2000 2 164 41.5 16.00 16.50 V 185749.17-394429.3
18578-3944 UC 3742 2010 4 163 40.6 16.00 16.50 V 185749.17-394429.3
18578-3944 UC 3742 2015 5 160 38.7 16.00 16.50 V 185749.17-394429.3

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