20169+1506 CHE 268BC

 
 
20h 16m 56.28s +15 05' 26.4" P.A. 354.00 sep 28.4 mag 12.30,12.49
 
 
Coord 2000
20169+1506
Discov num
CHE 268
Comp
BC
Coord arcsec 2000
20 16 56.28 +15 05 26.4
Date first
1987
Date last
2015
Obs
9
Pa first
355
Pa last
354
P.A. Now (θ)
354°
Sep first
28.5
Sep last
28.4
Sep. Now (ρ)
28.4"
Mag pri
12.30
Mag sec
12.49
delta mag (ΔM)
0.19
Spectral class
Pri motion ra
+011
Sec motion ra
-010
Pri motion dec
+008
Sec motion dec
-014
Notes
U (Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=1.768
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
354.3
Precise sep
28.374
Constellation
Delphinus
Gaia DR2
81740882432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20169+1506 CHE 268 BC 2001 3 354 28.3 12.30 12.49 U 201656.28+150526.4
20169+1506 CHE 268 BC 2015 5 354 28.4 12.30 12.49 U 201656.28+150526.4

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