20508+1702 CVR 875

 
 
20h 50m 44.65s +17 02' 12.4" P.A. 73 sep 20.3 mag 15.70,16.20 Sp M1+M1
 
 
Coord 2000
20508+1702
Discov num
CVR 875
Comp
Coord arcsec 2000
20 50 44.65 +17 02 12.4
Date first
2000
Date last
2015
Obs
4
Pa first
72
Pa last
73
P.A. Now (θ)
73°
Sep first
20.3
Sep last
20.3
Sep. Now (ρ)
20.3"
Mag pri
15.70
Mag sec
16.20
delta mag (ΔM)
0.5
Spectral class
M1+M1 (red/red)
Pri motion ra
+042
Sec motion ra
+043
Pri motion dec
+022
Sec motion dec
+023
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.029 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
73.4
Precise sep
20.327
Constellation
Delphinus
last precise pa
73.4
last precise sep
20.327
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20508+1702 CVR 875 2004 1 72 20.3 15.70 16.20 M1+M1 V R 205046.00+170218.8
20508+1702 CVR 875 2015 2 73 20.3 15.70 16.20 M1+M1 V R 205046.00+170218.8

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