20530+1806 UC 4316

 
 
20h 52m 57.71s +18 06' 26.9" P.A. 217 sep 49.4 mag 15.50,15.19
 
 
Coord 2000
20530+1806
Discov num
UC 4316
Comp
Coord arcsec 2000
20 52 57.71 +18 06 26.9
Date first
2000
Date last
2010
Obs
3
Pa first
216
Pa last
217
P.A. Now (θ)
217°
Sep first
49.0
Sep last
49.4
Sep. Now (ρ)
49.4"
Mag pri
15.50
Mag sec
15.19
delta mag (ΔM)
0.31
Spectral class
Pri motion ra
-023
Sec motion ra
-025
Pri motion dec
-055
Sec motion dec
-045
Notes
V (Proper motion indicates physical)
rPM=0.171 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
216.5
Precise sep
49.42
Constellation
Delphinus
last precise pa
216.5
last precise sep
49.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20530+1806 UC 4316 2000 2 216 49.0 15.50 15.20 V 205257.71+180626.9
20530+1806 UC 4316 2001 2 216 48.9 15.50 15.20 V 205257.71+180626.9
20530+1806 UC 4316 2010 3 217 49.0 15.50 15.19 V 205257.71+180626.9

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