18156+3820 CBL  75

 
 
18h 15m 38.79s +38 19' 49.9" P.A. 206 sep 18.4 mag 9.96,10.95
 
 
Coord 2000
18156+3820
Discov num
CBL  75
Comp
Coord arcsec 2000
18 15 38.79 +38 19 49.9
Date first
1930
Date last
2015
Obs
10
Pa first
209
Pa last
206
P.A. Now (θ)
206°
Sep first
18.7
Sep last
18.4
Sep. Now (ρ)
18.4"
Mag pri
9.96
Mag sec
10.95
delta mag (ΔM)
0.99
Spectral class
Pri motion ra
+022
Sec motion ra
+019
Pri motion dec
+100
Sec motion dec
+100
Notes
V W (Proper motion indicates physical, )
rPM=0.029 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
206.3
Precise sep
18.442
Constellation
Lyra
Tycho2
3103-01759-1
last precise pa
206.3
last precise sep
18.442
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18156+3820 CBL 75 1998 6 207 18.5 9.90 10.90 VD 181538.79+381949.9
18156+3820 CBL 75 2010 7 207 18.6 9.90 10.90 VD 181538.79+381949.9
18156+3820 CBL 75 2015 10 206 18.4 9.96 10.95 VW 181538.79+381949.9

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