20514+4519 ARG 40

 
 
20h 51m 21.57s +45° 19' 03.3" P.A. 250.00 sep 9.2 mag 9.35,10.29 Sp A5+F
 
 
Coord 2000 20514+4519 Discov num ARG  40 Comp Coord arcsec 2000 20 51 21.57 +45 19 03.3
Date first 1892 Date last 2018 Obs 31
Pa first 250 Pa last 250 P.A. Now (θ) 250°
Sep first 9.2 Sep last 9.213 Sep. Now (ρ) 9.213"
Mag pri 9.35 Mag sec 10.29 delta mag (ΔM) 0.94 Spectral class A5+F (white/yellow-white)
Pri motion ra +010 Sec motion ra +011
Pri motion dec +001 Sec motion dec +001
Notes T (Parallax indicates physical)
rPM=0.091 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3575-01826-1 Gaia DR2 2163253981941534336
 
 
WDS 20514+4519 ARG 40 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Arg1857 - Argelander, F. ...................
Arg1857 Oeltzen Argelander Cat -15 to -31, 1857
Arg1862A - Argelander, F. 1862AN.....59....1A
Arg1862A cited by Auwers (AN 59, 1, 1862)
Arg1864 T - Argelander, F. 1864AN.....62R.253A
Arg1864 AN 62, 253, 1864
Arg1865 T - Argelander, F. 1865AN.....65...61A
Arg1865 AN 65, 61, 1865
Arg1880A - Argelander, F. 1880Obs.....3..569G
Arg1880A cited by Gledhill (Obs. 3, 569, 1880)
Arg1906A T - Argelander, F. (BD) 1906QB821.B972.....
Arg1906A cited in BDS (Burnham Double Star Cat., 1906)
Arg1908A T - Argelander, F. 1908JRASC...2..248E
Arg1908A cited by Espin (JRASC 2, 248, 1908) .
Arg1913A T - Argelander, F. (BD) 1913QB811.B8.......
Arg1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Arg1932A T - Argelander, F. (BD) 1932QB821.A43......
Arg1932A cited in ADS (Aitken Double Star Cat., 1932)
Arg1937A - Argelander, F. 1937AnLei..18....1S
Arg1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20514+4519 ARG 40 2004 19 251 9.4 9.35 10.29 A5 F D 205121.57+451903.3
20514+4519 ARG 40 2010 22 251 8.9 9.35 10.29 A5+F 205121.57+451903.3
20514+4519 ARG 40 2015 23 250 9.2 9.35 10.29 A5+F W 205121.57+451903.3
20514+4519 ARG 40 2018 25 250 9.2 9.35 10.29 A5+F W 205121.57+451903.3

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WDS 20514+4519 ARG 40 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20514+4519 ARG 40 : MEASURES
 
 
No records found.

 
 
WDS 20514+4519 : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 20514+4519 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.