21505+1953 LDS 4916

 
 
21h 50m 25.65s +19° 53' 11.7" P.A. 298.00 sep 198.7 mag 17.90,18.20 Sp DA
 
 
Coord 2000 21505+1953 Discov num LDS4916 Comp Coord arcsec 2000 21 50 25.65 +19 53 11.7
Date first 1960 Date last 2015 Obs 3
Pa first 311 Pa last 298.4 P.A. Now (θ) 298.4°
Sep first 141.0 Sep last 198.688 Sep. Now (ρ) 198.688"
Mag pri 17.90 Mag sec 18.20 delta mag (ΔM) 0.3 Spectral class DA (white dwarf)
Pri motion ra +138 Sec motion ra +112
Pri motion dec -024 Sec motion dec -011
Notes
rPM=0.208 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Gaia DR2 1780497934010525312
 
 
WDS 21505+1953 LDS 4916 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LDS Luyten p.m. catalog (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21505+1953 LDS4916 1960 1 311 141.0 17.90 18.20 215025.65+195311.7
21505+1953 LDS4916 2000 2 298 198.2 17.90 18.20 DA 215025.65+195311.7
21505+1953 LDS4916 2015 3 298 198.7 17.90 18.20 DA 215025.65+195311.7

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WDS 21505+1953 LDS 4916 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21505+1953 LDS 4916 : MEASURES
 
 
No records found.

 
 
WDS 21505+1953 : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 21505+1953 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.