18406+2636 COU 641

 
 
18h 40m 35.61s +26 35' 38.8" P.A. 56 sep 0.6 mag 10.28,10.35 Sp A3
 
 
Coord 2000
18406+2636
Discov num
COU 641
Comp
Coord arcsec 2000
18 40 35.61 +26 35 38.8
Date first
1971
Date last
2016
Obs
13
Pa first
57
Pa last
56
P.A. Now (θ)
56°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
10.28
Mag sec
10.35
delta mag (ΔM)
0.07
Spectral class
A3 (white)
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-007
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
56.3
Precise sep
0.61
Constellation
Lyra
SAO
86312
Tycho2
2115-02015-1
HD
336690
last precise pa
56.3
last precise sep
0.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18406+2636 COU 641 1995 8 53 0.6 10.28 10.35 A3 184035.61+263538.8
18406+2636 COU 641 2010 9 54 0.6 10.28 10.35 A3 184035.61+263538.8
18406+2636 COU 641 2015 12 57 0.6 10.28 10.35 A3 184035.61+263538.8
18406+2636 COU 641 2016 13 56 0.6 10.28 10.35 A3 184035.61+263538.8

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