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Current system
20169+1506
CHE 268 BC


Nearby doubles
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20169+1506 CHE 268 BC

 
 
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 354.3 P.A. Now (θ) 354.3°
Sep first 28.5 Sep last 28.374 Sep. Now (ρ) 28.374"
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)
rPM=1.768
This double is not physical.
 
 
20169+1506 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 16 57 +15 05 35 CHE 268 AB 2015 11 213 10.2 12.20 12.30 0.10
Show 20 16 57 +15 05 35 CHE 268 AC 2015 9 337 21.4 12.20 12.49 0.29
Show 20 16 57 +15 05 35 ABH 136 AD 2015 10 281 39.7 12.20 13.86 1.66
Show 20 16 57 +15 05 35 ABH 136 AE 2015 9 231 74.0 12.20 15.80 3.60
Show 20 16 57 +15 05 35 ABH 136 AF 2015 7 217 52.4 12.20 14.80 2.60
Show 20 16 57 +15 05 35 ABH 136 AG 2015 9 212 51.0 12.20 14.70 2.50
Show 20 16 57 +15 05 35 ABH 136 AH 2015 9 190 55.4 12.20 14.50 2.30
Show 20 16 57 +15 05 35 ABH 136 AI 2015 9 181 67.9 12.20 15.40 3.20
Show 20 16 57 +15 05 35 ABH 136 AJ 2015 10 57 93.0 12.20 15.30 3.10
Show 20 16 57 +15 05 35 ABH 136 AK 2015 10 65 103.2 12.20 15.80 3.60
Show 20 16 57 +15 05 35 ABH 136 AL 2015 10 64 125.3 12.20 15.80 3.60
Show 20 16 56 +15 05 26 CHE 268 BC 2015 9 354 28.4 12.30 12.49 0.19 <===
12-fold system
12 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1808244281740882432