18443-1443 LEO  21AB

 
 
18h 44m 19.38s -14 43' 25.4" P.A. 15 sep 4.2 mag 11.10,12.10
 
 
Coord 2000
18443-1443
Discov num
LEO  21
Comp
AB
Coord arcsec 2000
18 44 19.38 -14 43 25.4
Date first
1905
Date last
2015
Obs
7
Pa first
7
Pa last
15
P.A. Now (θ)
15°
Sep first
4.2
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
11.10
Mag sec
12.10
delta mag (ΔM)
1
Spectral class
Pri motion ra
-003
Sec motion ra
+003
Pri motion dec
-005
Sec motion dec
+001
Notes
rPM=1.455
This double is not physical.
 
 
18443-1443 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18443-1443 LEO 21 AB 1905 2015 7 15 4.2 11.10 12.10 1.00 <===
Show 18443-1443 LEO 21 AC 1917 2015 7 281 34.1 11.10 14.20 3.10
Show 18443-1443 J 2144 AD 1942 2015 6 23 17.5 11.10 14.10 3.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
15.1
Precise sep
4.188
Constellation
Scutum
Gaia DR2
16645913984
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18443-1443 LEO 21 AB 2001 5 13 4.2 10.10 10.80 D 184419.42-144323.7
18443-1443 LEO 21 AB 2015 7 15 4.2 11.10 12.10 184419.38-144325.4

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