20306+2158 BRT2478

 
 
20h 30m 34.04s +21 57' 43.2" P.A. 297 sep 3.6 mag 9.90,10.00
 
 
Coord 2000
20306+2158
Discov num
BRT2478
Comp
Coord arcsec 2000
20 30 34.04 +21 57 43.2
Date first
1892
Date last
2015
Obs
16
Pa first
299
Pa last
297
P.A. Now (θ)
297°
Sep first
3.3
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
9.90
Mag sec
10.00
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
+008
Sec motion ra
+001
Pri motion dec
-006
Sec motion dec
-005
Notes
N (See Notes)
rPM=0.707
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.1
Precise sep
3.553
Constellation
Vulpecula
Gaia DR2
36761590016
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20306+2158 BRT2478 2000 8 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2010 9 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2011 10 297 3.6 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2013 15 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2015 16 297 3.6 9.90 10.00 N 203034.04+215743.2

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