20177+1539 CHE 278

 
 
20h 17m 44.34s +15 38' 58.8" P.A. 89 sep 10.5 mag 11.27,12.80
 
 
Coord 2000
20177+1539
Discov num
CHE 278
Comp
Coord arcsec 2000
20 17 44.34 +15 38 58.8
Date first
1910
Date last
2015
Obs
12
Pa first
110
Pa last
89
P.A. Now (θ)
89°
Sep first
8.6
Sep last
10.5
Sep. Now (ρ)
10.5"
Mag pri
11.27
Mag sec
12.80
delta mag (ΔM)
1.53
Spectral class
Pri motion ra
-016
Sec motion ra
+018
Pri motion dec
-014
Sec motion dec
+012
Notes
rPM=1.979
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
89.1
Precise sep
10.451
Constellation
Delphinus
Tycho2
1631-00345-1
Gaia DR2
17559169920
HD
355375
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+1539 CHE 278 2006 4 91 10.2 11.27 12.80 D 201744.34+153858.8
20177+1539 CHE 278 2008 5 90 10.7 11.27 12.80 D 201744.34+153858.8
20177+1539 CHE 278 2010 7 90 10.1 11.27 12.80 201744.34+153858.8
20177+1539 CHE 278 2015 8 89 10.4 11.27 12.80 201744.34+153858.8

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