20244+1935 STF2679AB

 
 
20h 24m 22.59s +19 34' 30.0" P.A. 77 sep 24.4 mag 7.88,9.69 Sp A2V dist. 244.5 pc (797.56 l.y.)
 
 
Coord 2000
20244+1935
Discov num
STF2679
Comp
AB
Coord arcsec 2000
20 24 22.59 +19 34 30.0
Date first
1830
Date last
2017
Obs
50
Pa first
80
Pa last
77
P.A. Now (θ)
77°
Sep first
21.9
Sep last
24.4
Sep. Now (ρ)
24.4"
Mag pri
7.88
Mag sec
9.69
delta mag (ΔM)
1.81
Spectral class
A2V (white)
Pri motion ra
-010
Sec motion ra
+005
Pri motion dec
-012
Sec motion dec
-006
Notes
Y (Parallax indicates components are non-physical)
rPM=1.034
This double is not physical.
 
 
20244+1935 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20244+1935 STF2679 AB 1830 2017 50 77 24.4 7.88 9.69 1.81 <===
Show 20244+1935 STF2679 AC 1895 2017 17 150 38.6 7.88 11.56 3.68
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
77.3
Precise sep
24.394
Constellation
Delphinus
SAO
106068
HIP
100638
Tycho2
1640-01633-1
Gaia DR2
57286040192
HD
194318
BD
BD+19 4396
Distance
244.5
Distance ly
797.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20244+1935 STF2679 AB 2005 33 78 24.2 7.88 9.69 A2V YD 202422.59+193430.0
20244+1935 STF2679 AB 2012 38 77 24.7 7.88 9.69 A2V YD 202422.59+193430.0
20244+1935 STF2679 AB 2013 41 77 24.5 7.88 9.69 A2V YD 202422.59+193430.0
20244+1935 STF2679 AB 2014 42 78 24.4 7.88 9.69 A2V YD 202422.59+193430.0
20244+1935 STF2679 AB 2016 44 77 24.4 7.88 9.69 A2V Y 202422.59+193430.0
20244+1935 STF2679 AB 2017 46 77 24.4 7.88 9.69 A2V Y 202422.59+193430.0

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