20312+1116 CHR  99Aa,Ab

 
 
20h 31m 11.94s +11 15' 33.7" P.A. 142.00 sep 0.4 mag 7.10, Sp B8V dist. 59.99 pc (195.69 l.y.)
 
 
Coord 2000
20312+1116
Discov num
CHR  99
Comp
Aa,Ab
Coord arcsec 2000
20 31 11.94 +11 15 33.7
Date first
1983
Date last
2016
Obs
14
Pa first
126
Pa last
142
P.A. Now (θ)
142°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
7.10
Mag sec
delta mag (ΔM)
Spectral class
B8V (blue-white)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
N (See Notes)
Visually invisible, K-band or other infrared star Nature of this double is uncertain.
 
 
20312+1116 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 106196 20312+1116 CHR 99 Aa,Ab 1983 2016 14 142 0.4 7.10 <===
Show 106195 20312+1116 STF2690 A,BC 1777 2019 160 255 17.8 7.12 7.39 0.27
Show 106195 20312+1116 HJ 269 AD 1825 2016 17 108 23.0 7.12 12.10 4.98
Show 106195 20312+1116 DA 1 BC 1840 2016 98 190 0.4 7.90 8.00 0.10 Y
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
141.5
Precise sep
0.385
Constellation
Delphinus
SAO
106196
HIP
101233
Tycho2
1095-01695-1
Gaia DR2
88501616128
HD
195482
HR
7840
Distance
59.99
Distance ly
195.69
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20312+1116 CHR 99 Aa,Ab 2005 13 137 0.4 7.10   B8V 203111.94+111533.7
20312+1116 CHR 99 Aa,Ab 2016 14 142 0.4 7.10   B8V N 203111.94+111533.7

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