19401+1801 J   121AB (Sham)

 
 
19h 40m 05.78s +18 00' 50.2" P.A. 180 sep 28.9 mag 4.37,13.20 Sp G1III
 
 
Coord 2000
19401+1801
Discov num
J   121
Comp
AB
Coord arcsec 2000
19 40 05.78 +18 00 50.2
Date first
1910
Date last
2015
Obs
11
Pa first
200
Pa last
180
P.A. Now (θ)
180°
Sep first
20.0
Sep last
28.9
Sep. Now (ρ)
28.9"
Mag pri
4.37
Mag sec
13.20
delta mag (ΔM)
8.83
Spectral class
G1III (yellow)
Pri motion ra
+015
Sec motion ra
+009
Pri motion dec
-020
Sec motion dec
+017
Notes
N (See Notes)
rPM=1.499
This double is not physical.
 
 
19401+1801 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Sham 105120 19401+1801 J 121 AB 1910 2015 11 180 28.9 4.37 13.20 8.83 <===
Show 19401+1801 J 121 AC 1910 2013 5 244 35.4 4.37 14.90 10.53
Show 19401+1801 WAL 118 AD 1897 2013 7 148 82.6 4.37 11.21 6.84
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180
Precise sep
28.9
Common name
Sham
Other names
ALSAHM
Constellation
Sagitta
SAO
105120
HD
185758
HR
7479
Bayer
Alpha Sagittae
Bayer name
Alp Sge
Flamsteed
5 Sagittae
Flamsteed name
5 Sge
last precise pa
180
last precise sep
28.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19401+1801 J 121 AB 2007 6 180 30.2 4.37 13.20 G1III N D 194005.78+180050.2
19401+1801 J 121 AB 2009 7 178 29.9 4.37 13.20 G1III N D 194005.78+180050.2
19401+1801 J 121 AB 2013 9 181 29.5 4.37 13.20 G1III N 194005.78+180050.2
19401+1801 J 121 AB 2015 11 180 28.9 4.37 13.20 G1III N 194005.78+180050.2

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