18165+3101 COU 813

 
 
18h 16m 31.68s +31 01' 29.9" P.A. 144 sep 4.7 mag 11.00,11.60
 
 
Coord 2000
18165+3101
Discov num
COU 813
Comp
Coord arcsec 2000
18 16 31.68 +31 01 29.9
Date first
1972
Date last
2015
Obs
6
Pa first
143
Pa last
144
P.A. Now (θ)
144°
Sep first
4.2
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
11.00
Mag sec
11.60
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-002
Sec motion ra
+018
Pri motion dec
+011
Sec motion dec
-019
Notes
rPM=1.378
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
144.1
Precise sep
4.709
Constellation
Lyra
Gaia DR2
46730764160
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18165+3101 COU 813 2001 4 147 4.7 11.00 11.60 D 181631.68+310129.9
18165+3101 COU 813 2002 5 144 4.7 11.00 11.60 D 181631.68+310129.9
18165+3101 COU 813 2010 6 159 4.1 11.00 11.60 181631.68+310129.9
18165+3101 COU 813 2015 6 144 4.7 11.00 11.60 181631.68+310129.9

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