20417+3622 SEI1217

 
 
20h 41m 38.01s +36 22' 08.3" P.A. 245.00 sep 15.1 mag 11.04,11.91
 
 
Coord 2000
20417+3622
Discov num
SEI1217
Comp
Coord arcsec 2000
20 41 38.01 +36 22 08.3
Date first
1896
Date last
2015
Obs
23
Pa first
242
Pa last
245
P.A. Now (θ)
245°
Sep first
18.2
Sep last
15.1
Sep. Now (ρ)
15.1"
Mag pri
11.04
Mag sec
11.91
delta mag (ΔM)
0.87
Spectral class
Pri motion ra
-001
Sec motion ra
+012
Pri motion dec
-006
Sec motion dec
+016
Notes
U (Proper motion indicates non-physical)
rPM=1.278
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
244.8
Precise sep
15.097
Constellation
Cygnus
SAO
70394
Tycho2
2698-00717-1
Gaia DR2
1870620852002702208
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20417+3622 SEI1217 1998 8 244 15.5 11.04 11.91 LD 204138.01+362208.3
20417+3622 SEI1217 2002 9 244 15.4 11.04 11.91 LD 204138.01+362208.3
20417+3622 SEI1217 2010 10 246 14.8 11.04 11.91 L 204138.01+362208.3
20417+3622 SEI1217 2015 11 245 15.1 11.04 11.91 L 204138.01+362208.3

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