20240+2505 J   557

 
 
20h 23m 57.13s +25 05' 28.3" P.A. 244 sep 2.5 mag 11.18,11.23 Sp F5
 
 
Coord 2000
20240+2505
Discov num
J   557
Comp
Coord arcsec 2000
20 23 57.13 +25 05 28.3
Date first
1911
Date last
2015
Obs
27
Pa first
287
Pa last
244
P.A. Now (θ)
244°
Sep first
2.3
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
11.18
Mag sec
11.23
delta mag (ΔM)
0.05
Spectral class
F5 (yellow-white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
+008
Sec motion dec
+008
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
244.1
Precise sep
2.521
Constellation
Vulpecula
Tycho2
2160-01301-1
Gaia DR2
80403713024
HD
340158
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20240+2505 J 557 1991 18 250 2.6 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2008 19 247 3.3 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2009 20 244 2.7 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2010 21 244 2.8 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2011 22 244 2.8 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2013 25 243 2.8 11.18 11.23 F5 202357.13+250528.3
20240+2505 J 557 2015 28 244 2.5 11.18 11.23 F5 202357.13+250528.3

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