18568+2816 MLB 756BC

 
 
18h 56m 44.89s +28 15' 34.1" P.A. 300 sep 8.1 mag 13.80,15.50
 
 
Coord 2000
18568+2816
Discov num
MLB 756
Comp
BC
Coord arcsec 2000
18 56 44.89 +28 15 34.1
Date first
1932
Date last
2005
Obs
4
Pa first
288
Pa last
300
P.A. Now (θ)
300°
Sep first
4.8
Sep last
8.1
Sep. Now (ρ)
8.1"
Mag pri
13.80
Mag sec
15.50
delta mag (ΔM)
1.7
Spectral class
Pri motion ra
Sec motion ra
+019
Pri motion dec
Sec motion dec
-048
Notes
Nature of this double is uncertain.
 
 
18568+2816 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18568+2816 MLB 756 AB 1932 2005 4 290 3.9 12.40 13.80 1.40
Show 18568+2816 MLB 756 BC 1932 2005 4 300 8.1 13.80 15.50 1.70 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
300.2
Precise sep
8.1
Constellation
Lyra
Tycho2
2121-01031-1
last precise pa
300.2
last precise sep
8.1
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18568+2816 MLB 756 BC 2005 3 300 8.1 13.80 15.50 D 185644.89+281534.1

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