18447+4550 ES   22AB

 
 
18h 44m 40.13s +45 50' 09.4" P.A. 133 sep 3.3 mag 10.36,13.50
 
 
Coord 2000
18447+4550
Discov num
ES   22
Comp
AB
Coord arcsec 2000
18 44 40.13 +45 50 09.4
Date first
1900
Date last
2009
Obs
4
Pa first
136
Pa last
133
P.A. Now (θ)
133°
Sep first
2.7
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
10.36
Mag sec
13.50
delta mag (ΔM)
3.14
Spectral class
Pri motion ra
+009
Sec motion ra
Pri motion dec
+032
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18447+4550 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18447+4550 ES 22 AB 1900 2009 4 133 3.3 10.36 13.50 3.14 <===
Show 18447+4550 HJ 1346 AC 1828 2010 15 216 28.0 10.36 11.24 0.88
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
133
Precise sep
3.331
Constellation
Lyra
Tycho2
3527-01772-1
last precise pa
133
last precise sep
3.331
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18447+4550 ES 22 AB 1913 3 134 2.9 10.36 13.50 184440.13+455009.4
18447+4550 ES 22 AB 2009 4 133 3.3 10.36 13.50 184440.13+455009.4

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