18316+3846 COU1604

 
 
18h 31m 34.80s +38 46' 11.2" P.A. 131 sep 1.7 mag 10.34,11.84 Sp F8
 
 
Coord 2000
18316+3846
Discov num
COU1604
Comp
Coord arcsec 2000
18 31 34.80 +38 46 11.2
Date first
1977
Date last
2010
Obs
5
Pa first
127
Pa last
131
P.A. Now (θ)
131°
Sep first
1.6
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
10.34
Mag sec
11.84
delta mag (ΔM)
1.5
Spectral class
F8 (yellow-white)
Pri motion ra
+021
Sec motion ra
+021
Pri motion dec
-018
Sec motion dec
-018
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
130.7
Precise sep
1.74
Constellation
Lyra
SAO
67077
Tycho2
3105-00904-1
Gaia DR2
27929192448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18316+3846 COU1604 1996 3 133 1.7 10.34 11.84 F8 183134.80+384611.2
18316+3846 COU1604 2009 4 131 1.9 10.34 11.84 F8 183134.80+384611.2
18316+3846 COU1604 2010 5 131 1.7 10.34 11.84 F8 183134.80+384611.2

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