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Current system
20486+3424
ES 249


Nearby doubles
6' : 20472+3422
BU 677AB

15' : 20488+3426
SEI1256

21' : 20481+3403
LDS1047

23' : 20493+3430
POP 51

30' : 20489+3449
SEI1258

31' : 20466+3451
SEI1245

31' : 20466+3452
SEI1246

31' : 20462+3358
STT 594AB
Aljanah

33' : 20498+3442
SEI1264

33' : 20479+3456
TDT2545

33' : 20490+3451
SEI1259

37' : 20502+3441
SEI1269

40' : 20504+3406
GRV 387

41' : 20448+3401
GRV 376

41' : 20477+3343
NSN 736

42' : 20445+3409
HU 690

42' : 20489+3503
SEI1257AB

43' : 20465+3504
GRV 379

45' : 20446+3401
TDT2511

45' : 20447+3357
ES 2311

47' : 20442+3404
TDT2507

50' : 20464+3511
COU1810

52' : 20487+3334
ES 9006

58' : 20521+3439
RAO 521

58' : 20431+3411
ES 2310

59' : 20482+3326
ES 2377



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20486+3424 ES 249

 
 
20h 47m 36.47s +34° 23' 52.3" P.A. 26.00 sep 7.7 mag 10.73,11.80
 
 
Coord 2000 20486+3424 Discov num ES  249 Comp Coord arcsec 2000 20 47 36.47 +34 23 52.3
Date first 1905 Date last 2015 Obs 9
Pa first 22 Pa last 25.8 P.A. Now (θ) 25.8°
Sep first 5.4 Sep last 7.744 Sep. Now (ρ) 7.744"
Mag pri 10.73 Mag sec 11.80 delta mag (ΔM) 1.07 Spectral class
Pri motion ra +006 Sec motion ra +028
Pri motion dec -010 Sec motion dec +015
Notes
rPM=1.048
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2695-03185-1 Gaia DR2 1869340333274508032
 
 
WDS 20486+3424 ES 249 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Es_1901 Mb - Espin, T.E. 1901AN....155..321E
Es_1901 AN 155, 321, 1901 (ES 1 - 39)
Es_1902a Ma - Espin, T.E. 1902AN....158..241E
Es_1902a +Mb AN 158, 241, 1902 (ES 40 - 112)
Es_1902b Mb - Espin, T.E. 1902MNRAS..62..528E
Es_1902b MNRAS 62, 528, 1902
Es_1902c Mb j Espin, T.E. 1902MNRAS..62..402E
Es_1902c MNRAS 62, 402, 1902
Es_1903 Mb - Espin, T.E. 1903MNRAS..63..172E
Es_1903 MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a - Espin, T.E. 1904MNRAS..64..238E
Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E
Es_1904b Mb - Espin, T.E. 1904MNRAS..64..675E
Es_1904b MNRAS 64, 675, 1904
Es_1905 Mb - Espin, T.E. 1905MNRAS..65..710E
Es_1905 MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a Mb - Espin, T.E. 1906MNRAS..66..141E
Es_1906a MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b Mb - Espin, T.E. 1906MNRAS..66..430E
Es_1906b MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C Mb - Espin, T.E. 1906QB821.B972.....
Es_1906C cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D Mb - Espin, T.E. 1906MmRAS..56....1L
Es_1906D cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a Mb j Espin, T.E. 1907MNRAS..67..190E
Es_1907a MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b Mb - Espin, T.E. 1907MNRAS..67..495E
Es_1907b MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a Mb j Espin, T.E. 1908MNRAS..68..202E
Es_1908a MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b Mb - Espin, T.E. 1908MNRAS..68..523E
Es_1908b MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c - Espin, T.E. 1908JRASC...2..248E
Es_1908c JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909) 1909MNRAS..69..218E
Es_1909a Mb j Espin, T.E. 1909MNRAS..69..218E
Es_1909a MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b Mb j Espin, T.E. 1909MNRAS..69..604E
Es_1909b MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a Mb - Espin, T.E. 1910MNRAS..70..237E
Es_1910a MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b Mb - Espin, T.E. 1910MNRAS..70..541E
Es_1910b MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911 Mb - Espin, T.E. 1911MNRAS..71..217E
Es_1911 MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912 Mb - Espin, T.E. 1912MNRAS..72..191E
Es_1912 MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913 Mb j Espin, T.E. 1913MNRAS..73..162E
Es_1913 MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914 Mb j Espin, T.E. 1914MNRAS..74..244E
Es_1914 MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a Mb - Espin, T.E. 1915MNRAS..75..203E
Es_1915a MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b Mb - Espin, T.E. 1915MNRAS..75..555E
Es_1915b MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c Mb - Espin, T.E. 1915MNRAS..76..210E
Es_1915c MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917 Mb - Espin, T.E. 1917MNRAS..77..236E
Es_1917 MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918 Mb j Espin, T.E. 1918MNRAS..78..189E
Es_1918 MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919 Mb - Espin, T.E. 1919MNRAS..79..211E
Es_1919 MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920 Mb - Espin, T.E. 1920MNRAS..80..329E
Es_1920 MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921 Mb j Espin, T.E. 1921MNRAS..81..232E
Es_1921 MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922 Mb - Espin, T.E. 1922MNRAS..82..187E
Es_1922 MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923 Mb - Espin, T.E. 1923MNRAS..83..154E
Es_1923 MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924 Mb - Espin, T.E. 1924MNRAS..84..162E
Es_1924 MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a Mb - Espin, T.E. 1925MNRAS..85..276E
Es_1925a MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b Mb - Espin, T.E. 1925MNRAS..86...79E
Es_1925b MNRAS 86, 79, 1925
Es_1926 Mb - Espin, T.E. 1926MNRAS..86..131E
Es_1926 MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927 Mb - Espin, T.E. 1927MNRAS..87..215E
Es_1927 MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928 Mb - Espin, T.E. 1928MNRAS..88..185E
Es_1928 MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929 Mb - Espin, T.E. 1929MNRAS..89..268E
Es_1929 MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930 Mb - Espin, T.E. 1930MNRAS..90..317E
Es_1930 MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931 Mb - Espin, T.E. 1931MNRAS..91..294E
Es_1931 MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a Mb - Espin, T.E. 1932MNRAS..92..214E
Es_1932a MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B Mb - Espin, T.E. 1932QB821.A43......
Es_1932B cited in ADS (Aitken Double Star Cat.), 1932
Es_1933 Mb - Espin, T.E. 1933MNRAS..93..192E
Es_1933 MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A Mb - Espin, T.E. 1937AnLei..18....1S
Es_1937A 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
20486+3424 ES 249 1905 1 22 5.4 9.00 10.00
20486+3424 ES 249 2008 2 25 7.6 9.00 10.00
20486+3424 ES 249 2010 6 26 8.3 10.73 11.80 204736.47+342352.3
20486+3424 ES 249 2015 6 26 7.7 10.73 11.80 204736.47+342352.3

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

 
 
WDS 20486+3424 ES 249 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20486+3424 ES 249 : MEASURES
 
 
No records found.

 
 
WDS 20486+3424 : VIRTUAL EYEPIECE
 
 

20486+3424 ES 249A mag 10.73 20486+3424 ES 249B sep 7.5 P.A. 21.70 mag 11.8 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 20486+3424 : ALADIN DSS IMAGE @ 20h 47m 36.47s +34° 23' 52.3"
 
 
 
 
WDS 20486+3424 ES 249 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20486+3424 ES 249 distance=0' 20472+3422 BU 677AB distance=6' 20472+3422 BU 677AC distance=6' 20488+3426 SEI1256 distance=15' 20481+3403 LDS1047 distance=21' 20493+3430 POP 51 distance=23' 20489+3449 SEI1258 distance=30' 20466+3451 SEI1245 distance=31' 20466+3452 SEI1246 distance=31' 20462+3358 CHR 100Aa,Ab (Aljanah) distance=31' 20462+3358 STT 594AB (Aljanah) distance=31' 20462+3358 BU 676AC (Aljanah) distance=31' 20462+3358 LEP 96AD (Aljanah) distance=31' 20498+3442 SEI1264 distance=33' 20479+3456 TDT2545 distance=33' 20490+3451 SEI1259 distance=33' 20502+3441 SEI1269 distance=37' 20504+3406 GRV 387 distance=40' 20448+3401 GRV 376 distance=41' 20477+3343 NSN 736 distance=41' 20445+3409 HU 690 distance=42' 20489+3503 SEI1257AB distance=42' 20465+3504 GRV 379 distance=43' 20446+3401 TDT2511 distance=45' 20447+3357 ES 2311 distance=45' 20442+3404 TDT2507 distance=47' 20464+3511 COU1810 distance=50' 20487+3334 ES 9006 distance=52' 20521+3439 RAO 521 distance=58' 20431+3411 ES 2310 distance=58' 20482+3326 ES 2377 distance=59' 20503+3337 ES 2378 distance=59' 20429+3430 SEI1225 distance=59' 20522+3401 TDT2593 distance=62' 20456+3521 TDT2520 distance=63' 20432+3350 HDS2949 distance=64' 20470+3318 TDT2535 distance=67' 20449+3524 SEI1235 distance=69' 20437+3332 GRV 373 distance=71' 20462+3533 ES 2252AB distance=71' 20462+3533 LMP 18AB,C distance=71' 20462+3533 LMP 18AB,D distance=71' 20424+3455 COU1965 distance=72' 20451+3529 COU1809 distance=73' 20493+3314 ES 31AB distance=74' 20493+3314 ES 31AC distance=74' 20452+3531 SEI1237 distance=74' 20499+3531 SEI1266 distance=74' 20522+3513 HO 145 distance=75' 20501+3534 TDT2567 distance=77' 20538+3431 TDT2611 distance=78' 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 20486+3424 ES 249 26 7.7
Show 20472+3422 BU 677 AB 120 10.0 6
Show 20472+3422 BU 677 AC 211 16.8 6
Show 20488+3426 SEI1256 279 26.3 15
Show 20481+3403 LDS1047 7 110.2 21
Show 20493+3430 POP 51 347 6.6 23
Show 20489+3449 SEI1258 351 25.1 30
Show 20466+3451 SEI1245 5 23.1 31
Show 20466+3452 SEI1246 58 18.9 31
Show Aljanah 20462+3358 CHR 100 Aa,Ab 350 0.0 31
Show Aljanah 20462+3358 STT 594 AB 261 79.2 31
Show Aljanah 20462+3358 BU 676 AC 269 79.0 31
Show Aljanah 20462+3358 LEP 96 AD 271 93.4 31
Show 20498+3442 SEI1264 39 7.5 33
Show 20479+3456 TDT2545 195 2.5 33
Show 20490+3451 SEI1259 88 15.5 33
Show 20502+3441 SEI1269 148 7.9 37
Show 20504+3406 GRV 387 254 26.4 40
Show 20448+3401 GRV 376 179 65.2 41
Show 20477+3343 NSN 736 354 45.5 41
Show 20445+3409 HU 690 278 0.5 42
Show 20489+3503 SEI1257 AB 215 17.9 42
Show 20465+3504 GRV 379 162 57.1 43
Show 20446+3401 TDT2511 239 0.6 45
Show 20447+3357 ES 2311 44 7.0 45
Show 20442+3404 TDT2507 165 0.9 47
Show 20464+3511 COU1810 183 0.2 50
Show 20487+3334 ES 9006 93 25.3 52
Show 20521+3439 RAO 521 -1 0.2 58
Show 20431+3411 ES 2310 33 4.1 58
Show 20482+3326 ES 2377 220 4.3 59
Show 20503+3337 ES 2378 193 6.2 59
Show 20429+3430 SEI1225 275 17.0 59
Show 20522+3401 TDT2593 357 2.3 62
Show 20456+3521 TDT2520 16 0.4 63
Show 20432+3350 HDS2949 166 0.9 64
Show 20470+3318 TDT2535 86 0.7 67
Show 20449+3524 SEI1235 77 9.4 69
Show 20437+3332 GRV 373 178 26.2 71
Show 20462+3533 ES 2252 AB 294 4.2 71
Show 20462+3533 LMP 18 AB,C 82 26.0 71
Show 20462+3533 LMP 18 AB,D 85 35.5 71
Show 20424+3455 COU1965 278 0.4 72
Show 20451+3529 COU1809 101 0.7 73
Show 20493+3314 ES 31 AB 238 13.8 74
Show 20493+3314 ES 31 AC 143 18.7 74
Show 20452+3531 SEI1237 272 26.1 74
Show 20499+3531 SEI1266 179 10.5 74
Show 20522+3513 HO 145 286 16.9 75
Show 20501+3534 TDT2567 125 0.4 77
Show 20538+3431 TDT2611 160 2.1 78

 
 
WDS 20486+3424 : COMPONENTS
 
 
  A
B pa=21.7°
sep=7.51"
 
 
20486+3424 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204736.47+342352.3 Mag 10.73 PmRA 6.00
PmDE -10.0 Tycho2 2695-03185-1
Tycho2
Tycho2 2695-03185-1 Pflag RAmdeg 311.90198758 DEmdeg 34.39787128
PmRA 3.6 PmDE -14.8 E RAmdeg 43 E DEmdeg 39
E pmRA 2.4 E pmDE 2.4 EpRAm 1986.83 EpDEm 1988.03
Num 5 Q RAmdeg 2.0 Q DEmdeg 0.4 Q pmRA 2.0
Q pmDE 0.5 BTmag 12.497 E BTmag 0.163 VTmag 10.729
E VTmag 0.048 Prox 999 TYC T HIP
CCDM RAdeg 311.90197750 DEdeg 34.39790500 EpRA 1990 1.60
EpDE 1990 1.78 E RAdeg 45.2 E DEdeg 39.7 Posflg
Corr 0.2
 
 
20486+3424 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204736.69+342359.3 Mag 11.8 PmRA 28.00
PmDE 15.0 Calc delta mag 1.07 Calc coord yes