20169+1506 ABH 136AK

 
 
20h 16m 56.66s +15 05' 34.6" P.A. 65.00 sep 103.2 mag 12.20,15.80 Sp F4V
 
 
Coord 2000
20169+1506
Discov num
ABH 136
Comp
AK
Coord arcsec 2000
20 16 56.66 +15 05 34.6
Date first
1987
Date last
2015
Obs
10
Pa first
65
Pa last
65
P.A. Now (θ)
65°
Sep first
104.0
Sep last
103.2
Sep. Now (ρ)
103.2"
Mag pri
12.20
Mag sec
15.80
delta mag (ΔM)
3.6
Spectral class
F4V (yellow-white)
Pri motion ra
+016
Sec motion ra
+005
Pri motion dec
+004
Sec motion dec
-002
Notes
U R (Proper motion indicates non-physical, Red magnitudes)
Visually invisible, K-band or other infrared star rPM=0.76
This double is not physical.
 
 
20169+1506 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20169+1506 CHE 268 AB 1910 2015 11 213 10.2 12.20 12.30 0.10
Show 20169+1506 CHE 268 AC 1910 2015 9 337 21.4 12.20 12.49 0.29
Show 20169+1506 ABH 136 AD 1987 2015 10 281 39.7 12.20 13.86 1.66
Show 20169+1506 ABH 136 AE 1987 2015 9 231 74.0 12.20 15.80 3.60
Show 20169+1506 ABH 136 AF 1987 2015 7 217 52.4 12.20 14.80 2.60
Show 20169+1506 ABH 136 AG 1987 2015 9 212 51.0 12.20 14.70 2.50
Show 20169+1506 ABH 136 AH 1987 2015 9 190 55.4 12.20 14.50 2.30
Show 20169+1506 ABH 136 AI 1987 2015 9 181 67.9 12.20 15.40 3.20
Show 20169+1506 ABH 136 AJ 1987 2015 10 57 93.0 12.20 15.30 3.10
Show 20169+1506 ABH 136 AK 1987 2015 10 65 103.2 12.20 15.80 3.60 <===
Show 20169+1506 ABH 136 AL 1987 2015 10 64 125.3 12.20 15.80 3.60
Show 20169+1506 CHE 268 BC 1987 2015 9 354 28.4 12.30 12.49 0.19
12-fold system
12 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
64.7
Precise sep
103.17
Constellation
Delphinus
Gaia DR2
84820097408
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20169+1506 ABH 136 AK 2002 3 64 103.1 12.33 15.80 D 201656.66+150534.6
20169+1506 ABH 136 AK 2008 4 64 103.7 12.33 15.80 D 201656.66+150534.6
20169+1506 ABH 136 AK 2015 6 65 103.2 12.20 15.80 F4V U R 201656.66+150534.6

If you need more information about this double, apply for a data request form to the WDS.