20187-1751 UC 4142

 
 
20h 18m 44.68s -17 51' 18.8" P.A. 195 sep 40.8 mag 8.80,15.90 Sp F6/F7V dist. 87.03 pc (283.89 l.y.)
 
 
Coord 2000
20187-1751
Discov num
UC 4142
Comp
Coord arcsec 2000
20 18 44.68 -17 51 18.8
Date first
1998
Date last
2015
Obs
4
Pa first
195
Pa last
195
P.A. Now (θ)
195°
Sep first
40.9
Sep last
40.8
Sep. Now (ρ)
40.8"
Mag pri
8.80
Mag sec
15.90
delta mag (ΔM)
7.1
Spectral class
F6/F7V (yellow-white)
Pri motion ra
+073
Sec motion ra
+079
Pri motion dec
+050
Sec motion dec
+048
Notes
V (Proper motion indicates physical)
rPM=0.068 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
195
Precise sep
40.791
Constellation
Capricornus
SAO
163434
HIP
100129
Tycho2
6332-00892-1
Gaia DR2
14250030080
HD
193037
BD
BD-18 5646
Distance
87.03
Distance ly
283.89
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20187-1751 UC 4142 1999 2 195 40.8 8.80 15.90 V 201844.68-175118.8
20187-1751 UC 4142 2000 2 195 40.8 8.80 15.90 V 201844.68-175118.8
20187-1751 UC 4142 2010 3 195 40.8 8.80 15.90 F6/F7V V 201844.68-175118.8
20187-1751 UC 4142 2015 4 195 40.8 8.80 15.90 F6/F7V V 201844.68-175118.8

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