20588+1701 BPM2305

 
 
20h 58m 49.34s +17 00' 44.5" P.A. 249 sep 72.7 mag 11.31,15.69
 
 
Coord 2000
20588+1701
Discov num
BPM2305
Comp
Coord arcsec 2000
20 58 49.34 +17 00 44.5
Date first
1991
Date last
2010
Obs
4
Pa first
249
Pa last
249
P.A. Now (θ)
249°
Sep first
74.0
Sep last
72.7
Sep. Now (ρ)
72.7"
Mag pri
11.31
Mag sec
15.69
delta mag (ΔM)
4.38
Spectral class
Pri motion ra
-015
Sec motion ra
-016
Pri motion dec
-013
Sec motion dec
+024
Notes
N V (See Notes, Proper motion indicates physical)
rPM=1.283
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
249.3
Precise sep
72.72
Cdsa2 id
BPM 2305
Constellation
Delphinus
Ra deg
20.980372222222222
De deg
17.01236111111111
last precise pa
249.3
last precise sep
72.72
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20588+1701 BPM2305 2000 2 249 74.1 11.31 15.82 NV 205849.34+170044.5
20588+1701 BPM2305 2001 3 249 74.1 11.31 15.82 NV 205849.34+170044.5
20588+1701 BPM2305 2010 4 249 72.7 11.31 15.69 NV 205849.34+170044.5

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