20307+1233 BPM2177

 
 
20h 30m 42.84s +12 33' 21.0" P.A. 220 sep 71 mag 15.16,15.86
 
 
Coord 2000
20307+1233
Discov num
BPM2177
Comp
Coord arcsec 2000
20 30 42.84 +12 33 21.0
Date first
1996
Date last
2015
Obs
7
Pa first
220
Pa last
220
P.A. Now (θ)
220°
Sep first
70.7
Sep last
71.0
Sep. Now (ρ)
71"
Mag pri
15.16
Mag sec
15.86
delta mag (ΔM)
0.7
Spectral class
Pri motion ra
+017
Sec motion ra
+020
Pri motion dec
+019
Sec motion dec
+020
Notes
N V (See Notes, Proper motion indicates physical)
-10 rPM=0.112 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
219.6
Precise sep
71.042
Constellation
Delphinus
Gaia DR2
93260883072
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+1233 BPM2177 2000 2 220 70.9 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2001 3 220 70.9 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2010 4 219 70.3 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2015 4 220 71.0 15.16 15.86 NV 203042.84+123321.0

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