18066+5001 COU2276Aa,Ab

 
 
18h 06m 37.28s +50 00' 38.3" P.A. 13 sep 0.3 mag 9.77,10.00 Sp A5 dist. 684.93 pc (2234.24 l.y.)
 
 
Coord 2000
18066+5001
Discov num
COU2276
Comp
Aa,Ab
Coord arcsec 2000
18 06 37.28 +50 00 38.3
Date first
1985
Date last
1993
Obs
3
Pa first
10
Pa last
13
P.A. Now (θ)
13°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
9.77
Mag sec
10.00
delta mag (ΔM)
0.23
Spectral class
A5 (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18066+5001 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30749 18066+5001 COU2276 Aa,Ab 1985 1993 3 13 0.3 9.77 10.00 0.23 <===
Show 30749 18066+5001 STF2290 AB 1832 2009 14 352 3.9 9.23 11.20 1.97
Show 30749 18066+5001 STF2290 AC 1880 2015 5 69 178.1 9.23 12.70 3.47
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
13.2
Precise sep
0.31
Constellation
Hercules
SAO
30749
HIP
88713
Tycho2
3532-01520-1
HD
234561
BD
BD+49 2730
Distance
684.93
Distance ly
2234.24
last precise pa
13.2
last precise sep
0.31
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18066+5001 COU2276 Aa,Ab 1993 3 13 0.3 9.77 10.00 A5 D 180637.28+500038.3

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