20589+1741 BRT2487

 
 
20h 58m 53.58s +17 41' 15.8" P.A. 121 sep 4.2 mag 10.25,10.31 Sp G0
 
 
Coord 2000
20589+1741
Discov num
BRT2487
Comp
Coord arcsec 2000
20 58 53.58 +17 41 15.8
Date first
1904
Date last
2013
Obs
10
Pa first
120
Pa last
121
P.A. Now (θ)
121°
Sep first
4.5
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
10.25
Mag sec
10.31
delta mag (ΔM)
0.06
Spectral class
G0 (yellow)
Pri motion ra
-039
Sec motion ra
-007
Pri motion dec
-004
Sec motion dec
-030
Notes
N (See Notes)
rPM=1.052
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
121
Precise sep
4.2
Cdsa2 id
BRT 2487
Constellation
Delphinus
Tycho2
1652-00716-1
Ra deg
20.98155
De deg
17.687722222222224
last precise pa
121
last precise sep
4.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20589+1741 BRT2487 2000 7 120 4.3 10.25 10.31 G0 N D 205853.58+174115.8
20589+1741 BRT2487 2010 8 121 4.2 10.25 10.31 G0 N D 205853.58+174115.8
20589+1741 BRT2487 2013 10 121 4.2 10.25 10.31 G0 N 205853.58+174115.8

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