20157+1453 CHE 250

 
 
20h 15m 45.81s +14 53' 09.2" P.A. 145 sep 20.7 mag 10.24,13.51 Sp F0
 
 
Coord 2000
20157+1453
Discov num
CHE 250
Comp
Coord arcsec 2000
20 15 45.81 +14 53 09.2
Date first
1910
Date last
2015
Obs
11
Pa first
147
Pa last
145
P.A. Now (θ)
145°
Sep first
20.0
Sep last
20.7
Sep. Now (ρ)
20.7"
Mag pri
10.24
Mag sec
13.51
delta mag (ΔM)
3.27
Spectral class
F0 (yellow-white)
Pri motion ra
-005
Sec motion ra
+010
Pri motion dec
-002
Sec motion dec
-014
Notes
rPM=1.117
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
144.6
Precise sep
20.739
Constellation
Delphinus
Tycho2
1085-00639-1
Gaia DR2
31482614528
HD
355277
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+1453 CHE 250 1998 2 145 20.5 10.24 13.51 D 201545.81+145309.2
20157+1453 CHE 250 2008 3 144 20.6 10.24 13.51 D 201545.81+145309.2
20157+1453 CHE 250 2010 6 145 20.6 10.24 13.51 F0 201545.81+145309.2
20157+1453 CHE 250 2015 7 145 20.7 10.24 13.51 F0 201545.81+145309.2

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