20255+4006 POP 224AD

 
 
20h 25m 31.16s +40 05' 50.8" P.A. 98 sep 71.2 mag 8.15,11.58 Sp F8V
 
 
Coord 2000
20255+4006
Discov num
POP 224
Comp
AD
Coord arcsec 2000
20 25 31.16 +40 05 50.8
Date first
1928
Date last
2009
Obs
6
Pa first
97
Pa last
98
P.A. Now (θ)
98°
Sep first
77.6
Sep last
71.2
Sep. Now (ρ)
71.2"
Mag pri
8.15
Mag sec
11.58
delta mag (ΔM)
3.43
Spectral class
F8V (yellow-white)
Pri motion ra
+092
Sec motion ra
-005
Pri motion dec
+019
Sec motion dec
-005
Notes
rPM=1.064
This double is not physical.
 
 
20255+4006 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20255+4006 D 22 AB 1875 2016 71 163 2.9 8.15 9.48 1.33
Show 20255+4006 D 22 AC 1905 1998 5 114 18.1 8.15 13.20 5.05
Show 20255+4006 POP 224 AD 1928 2009 6 98 71.2 8.15 11.58 3.43 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.5
Precise sep
71.2
Constellation
Cygnus
SAO
70001
Tycho2
3156-00437-1
Gaia DR2
01017759616
HD
194685
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20255+4006 POP 224 AD 1991 4 98 72.5 8.15 11.58 F8V 202531.14+400553.7
20255+4006 POP 224 AD 2009 5 98 71.2 8.15 11.58 F8V 202531.14+400553.7

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