20283+1846 HO  131AD

 
 
20h 28m 18.64s +18 46' 10.2" P.A. 98 sep 83.7 mag 6.97,11.77 Sp G1V dist. 38.52 pc (125.65 l.y.)
 
 
Coord 2000
20283+1846
Discov num
HO  131
Comp
AD
Coord arcsec 2000
20 28 18.64 +18 46 10.2
Date first
1984
Date last
2001
Obs
4
Pa first
97
Pa last
98
P.A. Now (θ)
98°
Sep first
81.2
Sep last
83.7
Sep. Now (ρ)
83.7"
Mag pri
6.97
Mag sec
11.77
delta mag (ΔM)
4.8
Spectral class
G1V (yellow)
Pri motion ra
+349
Sec motion ra
-001
Pri motion dec
-058
Sec motion dec
-013
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.997
This double is not physical.
 
 
20283+1846 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20283+1846 HO 131 AB 1881 2015 14 334 3.4 6.97 10.60 3.63
Show 20283+1846 HO 131 AC 1895 2001 13 72 70.0 6.97 11.39 4.42
Show 20283+1846 HO 131 AD 1984 2001 4 98 83.7 6.97 11.77 4.80 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.5
Precise sep
83.69
Constellation
Delphinus
SAO
106138
HIP
100970
Tycho2
1640-00113-1
Gaia DR2
18365857792
HD
195019
BD
BD+18 4505
Distance
38.52
Distance ly
125.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20283+1846 HO 131 AD 1998 3 97 84.5 6.97 9.50 G1V N DU 202818.42+184610.7
20283+1846 HO 131 AD 2001 4 98 83.7 6.97 9.50 G1V NUD 202818.42+184610.7

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