20052+4923 ABH 128AF

 
 
20h 05m 17.06s +49 23' 55.3" P.A. 38 sep 78.2 mag 10.87,15.13 Sp K2III
 
 
Coord 2000
20052+4923
Discov num
ABH 128
Comp
AF
Coord arcsec 2000
20 05 17.06 +49 23 55.3
Date first
1987
Date last
2015
Obs
8
Pa first
39
Pa last
38
P.A. Now (θ)
38°
Sep first
77.9
Sep last
78.2
Sep. Now (ρ)
78.2"
Mag pri
10.87
Mag sec
15.13
delta mag (ΔM)
4.26
Spectral class
K2III (yellow-orange)
Pri motion ra
-002
Sec motion ra
+004
Pri motion dec
-015
Sec motion dec
+007
Notes
U (Proper motion indicates non-physical)
rPM=1.507
This double is not physical.
 
 
20052+4923 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20052+4923 HJ 1481 AB 1828 2015 18 6 18.1 10.87 10.76 0.11
Show 20052+4923 HJ 1481 AC 1901 2015 16 272 27.4 10.87 10.53 0.34
Show 20052+4923 ABH 128 AD 1987 2015 8 104 118.5 10.87 14.17 3.30
Show 20052+4923 ABH 128 AE 1987 2015 8 104 104.9 10.87 14.10 3.23
Show 20052+4923 ABH 128 AF 1987 2015 8 38 78.2 10.87 15.13 4.26 <===
Show 20052+4923 ABH 128 AG 1987 2015 8 318 81.1 10.87 15.50 4.63
Show 20052+4923 ABH 128 AH 1987 2015 8 256 100.8 10.87 15.20 4.33
Show 20052+4923 ABH 128 AI 1987 2015 8 250 103.4 10.87 15.20 4.33
Show 20052+4923 ARN9002 BC 1828 2015 15 240 33.8 10.76 10.53 0.23
Ninefold system
9 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
38.2
Precise sep
78.198
Constellation
Cygnus
Tycho2
3567-00926-1
Gaia DR2
23586080256
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20052+4923 ABH 128 AF 1999 2 38 77.7 10.87 15.10 K2III D 200517.06+492355.3
20052+4923 ABH 128 AF 2003 3 38 78.1 10.87 15.10 K2III UD 200517.06+492355.3
20052+4923 ABH 128 AF 2015 4 38 78.5 10.87 15.13 K2III U 200517.06+492355.3

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