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Current system
20509+5342
TDT 2576


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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20509+5342 TDT 2576

 
 
20h 50m 54.97s +53° 41' 48.8" P.A. 57.00 sep 0.7 mag 11.51,11.68
 
 
Coord 2000 20509+5342 Discov num TDT2576 Comp Coord arcsec 2000 20 50 54.97 +53 41 48.8
Date first 1991 Date last 1991 Obs 1
Pa first 57 Pa last 56.9 P.A. Now (θ) 56.9°
Sep first 0.7 Sep last 0.67 Sep. Now (ρ) 0.67"
Mag pri 11.51 Mag sec 11.68 delta mag (ΔM) 0.17 Spectral class
Pri motion ra -008 Sec motion ra -008
Pri motion dec -011 Sec motion dec -011
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3951-00402-1 Gaia DR2 2182655517444471040
 
 
WDS 20509+5342 TDT 2576 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20509+5342 TDT2576 1991 1 57 0.7 11.51 11.68 205054.97+534148.8

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20509+5342 TDT 2576 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20509+5342 TDT 2576 : MEASURES
 
 
No records found.

 
 
WDS 20509+5342 : VIRTUAL EYEPIECE
 
 

20509+5342 TDT2576A mag 11.51 20509+5342 TDT2576B sep 0.5 P.A. 42.20 mag 11.68 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20509+5342 : ALADIN DSS IMAGE @ 20h 50m 54.97s +53° 41' 48.8"
 
 
 
 
WDS 20509+5342 TDT 2576 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20509+5342 TDT2576 distance=1' 20518+5357 TDT2586 distance=18' 20515+5403 ARG 41BC distance=22' 20515+5403 ARG 41AB distance=22' 20474+5407 ES 997 distance=40' 20455+5401 HLD 41AB distance=52' 20455+5401 HLD 41AC distance=52' 20558+5417 CBL 89 distance=56' 20506+5452 HJ 1587AB distance=71' 20506+5452 DJU 5AC distance=71' 20460+5247 ES 996 distance=71' 20506+5452 DJU 5CD distance=71' 20448+5430 TOI1356 distance=73' 20566+5250 A 1437 distance=74' 20444+5253 MLR 643 distance=76' 20479+5224 ES 93 distance=83' 20424+5312 RAO 618CD distance=83' 20593+5303 JNN 287 distance=85' 20421+5436 ES 994 distance=94' 20443+5457 TDT2508 distance=95' 21006+5432 HJ 1605DE distance=96' 20408+5307 ES 2698AB distance=98' 20427+5238 A 1683 distance=98' 21006+5432 HJ 1606AB distance=99' 21006+5432 BU 1498AC distance=99' 21006+5432 HJ 1605AD distance=99' 20403+5413 OSO 129AB distance=99' 20403+5413 OSO 129AC distance=99' 20403+5413 OSO 129AD distance=99' 20403+5413 OSO 129AE distance=99' 21016+5422 A 1439AB distance=103' 21016+5422 A 1439AC distance=103' 20402+5427 A 1682 distance=105' 20435+5217 TVB 6 distance=109' 20487+5155 STF2732 distance=110' 20414+5454 TDS1090 distance=111' 21036+5358 HDS2999Aa,Ab distance=114' 21036+5358 ES 2704AB distance=114' 21040+5354 VLM 2 distance=117' 20385+5308 MLR 642 distance=117' 20377+5351 A 1681AB distance=118' 20377+5351 A 1681AC distance=118' 20411+5504 TDS1089 distance=119' 20472+5148 BU 365 distance=119' 20433+5521 LLO 1 distance=120' 20429+5206 ES 995 distance=121' 20396+5450 ES 993 distance=121' 21044+5331 ES 1002 distance=121' 20384+5248 TDT2442Aa,Ab distance=125' 20384+5248 SKF 348AB distance=125' 20388+5447 STI2550 distance=126' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20509+5342 TDT2576 57 0.7 1
Show 20518+5357 TDT2586 350 0.8 18
Show 20515+5403 ARG 41 BC 250 11.3 22
Show 20515+5403 ARG 41 AB 194 11.2 22
Show 20474+5407 ES 997 274 3.3 40
Show 20455+5401 HLD 41 AB 225 3.7 52
Show 20455+5401 HLD 41 AC 262 9.6 52
Show 20558+5417 CBL 89 150 14.4 56
Show 20506+5452 HJ 1587 AB 259 10.4 71
Show 20506+5452 DJU 5 AC 66 77.9 71
Show 20460+5247 ES 996 264 8.8 71
Show 20506+5452 DJU 5 CD 173 4.0 71
Show 20448+5430 TOI1356 289 0.3 73
Show 20566+5250 A 1437 331 1.4 74
Show 20444+5253 MLR 643 127 0.3 76
Show 20479+5224 ES 93 321 26.0 83
Show 20424+5312 RAO 618 CD 36 0.3 83
Show 20593+5303 JNN 287 11 0.5 85
Show 20421+5436 ES 994 11 4.7 94
Show 20443+5457 TDT2508 82 0.8 95
Show 21006+5432 HJ 1605 DE 118 21.3 96
Show 20408+5307 ES 2698 AB 28 8.3 98
Show 20427+5238 A 1683 209 0.1 98
Show 21006+5432 HJ 1606 AB 184 18.7 99
Show 21006+5432 BU 1498 AC 336 54.3 99
Show 21006+5432 HJ 1605 AD 219 207.5 99
Show 20403+5413 OSO 129 AB 141 10.8 99
Show 20403+5413 OSO 129 AC 115 17.1 99
Show 20403+5413 OSO 129 AD 143 19.9 99
Show 20403+5413 OSO 129 AE 70 19.7 99
Show 21016+5422 A 1439 AB 250 4.4 103
Show 21016+5422 A 1439 AC 342 16.5 103
Show 20402+5427 A 1682 49 1.4 105
Show 20435+5217 TVB 6 318 11.7 109
Show 20487+5155 STF2732 73 4.3 110
Show 20414+5454 TDS1090 226 1.0 111
Show 21036+5358 HDS2999 Aa,Ab 352 0.3 114
Show 21036+5358 ES 2704 AB 97 54.4 114
Show 21040+5354 VLM 2 188 8.1 117
Show 20385+5308 MLR 642 143 5.2 117
Show 20377+5351 A 1681 AB 209 4.4 118
Show 20377+5351 A 1681 AC 339 56.9 118
Show 20411+5504 TDS1089 252 1.4 119
Show 20472+5148 BU 365 288 17.2 119
Show 20433+5521 LLO 1 20 0.1 120
Show 20429+5206 ES 995 107 8.6 121
Show 20396+5450 ES 993 194 2.0 121
Show 21044+5331 ES 1002 64 6.7 121
Show 20384+5248 TDT2442 Aa,Ab 304 0.5 125
Show 20384+5248 SKF 348 AB 178 19.9 125
Show 20388+5447 STI2550 183 12.4 126

 
 
WDS 20509+5342 : COMPONENTS
 
 
  A
B pa=42.2°
sep=0.49"
 
 
20509+5342 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205054.97+534148.8 Mag 11.51 PmRA -8.00
PmDE -11.0 Tycho2 3951-00402-1
Tycho2
Tycho2 3951-00402-1 Pflag RAmdeg 312.72921350 DEmdeg 53.69694645
PmRA -7.7 PmDE -11.1 E RAmdeg 31 E DEmdeg 31
E pmRA 2.1 E pmDE 2.0 EpRAm 1986.02 EpDEm 1985.41
Num 5 Q RAmdeg 1.9 Q DEmdeg 0.8 Q pmRA 1.9
Q pmDE 0.9 BTmag 11.835 E BTmag 0.077 VTmag 10.995
E VTmag 0.062 Prox 999 TYC T HIP
CCDM RAdeg 312.72920222 DEdeg 53.69696722 EpRA 1990 1.54
EpDE 1990 1.65 E RAdeg 43.0 E DEdeg 44.5 Posflg
Corr 0.1
 
 
20509+5342 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205055.01+534149.2 Mag 11.68 PmRA -8.00
PmDE -11.0 Calc delta mag 0.17 Calc coord yes