20144+1608 CHE 228AB

 
 
20h 14m 24.25s +16 08' 18.9" P.A. 309 sep 38.6 mag 11.19,13.29
 
 
Coord 2000
20144+1608
Discov num
CHE 228
Comp
AB
Coord arcsec 2000
20 14 24.25 +16 08 18.9
Date first
1910
Date last
2015
Obs
11
Pa first
310
Pa last
309
P.A. Now (θ)
309°
Sep first
39.2
Sep last
38.6
Sep. Now (ρ)
38.6"
Mag pri
11.19
Mag sec
13.29
delta mag (ΔM)
2.1
Spectral class
Pri motion ra
+006
Sec motion ra
-113
Pri motion dec
+002
Sec motion dec
+097
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=1.022
This double is not physical.
 
 
20144+1608 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20144+1608 CHE 228 AB 1910 2015 11 309 38.6 11.19 13.29 2.10 <===
Show 20144+1608 CHE 228 AC 1910 2015 9 268 24.4 11.19 13.96 2.77
Show 20144+1608 BKO 540 BD 1998 2015 8 134 9.9 13.40 14.00 0.60
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
309.2
Precise sep
38.632
Constellation
Sagitta
Tycho2
1618-01497-1
Gaia DR2
77482051200
HD
355218
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20144+1608 CHE 228 AB 2002 3 310 38.7 9.63 10.21 201424.25+160819.6
20144+1608 CHE 228 AB 2008 4 310 38.7 9.63 10.21 201424.24+160819.0
20144+1608 CHE 228 AB 2015 7 309 38.6 11.19 13.29 NU 201424.25+160818.9

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