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Current system
20450+3651
ES 2513


Nearby doubles
6' : 20454+3651
SEI1238

10' : 20457+3647
AG 265

13' : 20458+3658
CRB 6

14' : 20461+3653
ES 2514

17' : 20463+3646
ES 2515AB

18' : 20455+3706
FIO 1

22' : 20468+3648
STJ 73

24' : 20431+3645
SEI1227

24' : 20447+3714
SEI1233

27' : 20462+3628
TDT2528

28' : 20458+3715
TDT2522

34' : 20444+3617
GII 53

36' : 20423+3637
SEI1224

36' : 20474+3629
STT 413AB

41' : 20437+3727
COU2291

42' : 20419+3711
SEI1220

43' : 20416+3637
SEI1218

45' : 20415+3635
SEI1216

45' : 20435+3609
ES 2195AB

46' : 20414+3644
SEI1215

47' : 20468+3730
ALI 674

48' : 20410+3658
TDT2469

49' : 20472+3730
J 1210

49' : 20447+3739
SEI1232

49' : 20417+3622
SEI1217

49' : 20422+3726
SEI1223



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.

20450+3651 ES 2513

 
 
20h 44m 57.37s +36° 49' 48.5" P.A. 275.00 sep 6.4 mag 11.00,11.50
 
 
Coord 2000 20450+3651 Discov num ES 2513 Comp Coord arcsec 2000 20 44 57.37 +36 49 48.5
Date first 1931 Date last 2015 Obs 8
Pa first 281 Pa last 275.4 P.A. Now (θ) 275.4°
Sep first 6.8 Sep last 6.4 Sep. Now (ρ) 6.4"
Mag pri 11.00 Mag sec 11.50 delta mag (ΔM) 0.5 Spectral class
Pri motion ra -011 Sec motion ra +004
Pri motion dec -018 Sec motion dec -001
Notes
rPM=1.075
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1870987951445292416
 
 
WDS 20450+3651 ES 2513 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
20450+3651 ES 2513 1998 2 276 6.4 11.00 11.50 D 204457.37+364948.5
20450+3651 ES 2513 2002 3 276 6.4 11.00 11.50 D 204457.37+364948.5
20450+3651 ES 2513 2015 4 276 6.4 11.00 11.50 204457.37+364948.5

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

 
 
WDS 20450+3651 ES 2513 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20450+3651 ES 2513 : MEASURES
 
 
No records found.

 
 
WDS 20450+3651 : VIRTUAL EYEPIECE
 
 

20450+3651 ES 2513A mag 11 20450+3651 ES 2513B sep 5.1 P.A. 276.70 mag 11.5 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 20450+3651 : ALADIN DSS IMAGE @ 20h 44m 57.37s +36° 49' 48.5"
 
 
 
 
WDS 20450+3651 ES 2513 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20450+3651 ES 2513 distance=0' 20454+3651 SEI1238 distance=6' 20457+3647 AG 265 distance=10' 20458+3658 CRB 6 distance=13' 20461+3653 ES 2514 distance=14' 20463+3646 COU2220Aa,Ab distance=17' 20463+3646 ES 2515AB distance=17' 20455+3706 FIO 1 distance=18' 20468+3648 STJ 73 distance=22' 20431+3645 SEI1227 distance=24' 20447+3714 SEI1233 distance=24' 20462+3628 TDT2528 distance=27' 20458+3715 TDT2522 distance=28' 20444+3617 GII 53 distance=34' 20423+3637 SEI1224 distance=36' 20474+3629 MCA 63Aa,Ab distance=36' 20474+3629 STT 413AB distance=36' 20474+3629 S 765AC distance=36' 20474+3629 FYM 126AF distance=36' 20474+3629 FYM 126CD distance=38' 20474+3629 FYM 126CE distance=38' 20437+3727 COU2291 distance=41' 20419+3711 SEI1220 distance=42' 20416+3637 SEI1218 distance=43' 20415+3635 SEI1216 distance=45' 20435+3609 ES 2195BC distance=45' 20435+3609 ES 2195AB distance=45' 20414+3644 SEI1215 distance=46' 20468+3730 ALI 674 distance=47' 20410+3658 TDT2469 distance=48' 20472+3730 J 1210 distance=49' 20447+3739 SEI1232 distance=49' 20417+3622 SEI1217 distance=49' 20422+3726 SEI1223 distance=49' 20491+3640 SEI1260 distance=51' 20460+3601 SEI1242 distance=51' 20450+3600 ALI 204 distance=51' 20460+3554 TDT2525 distance=58' 20490+3619 COU1811 distance=58' 20423+3601 TDT2481 distance=59' 20464+3747 SEI1244 distance=60' 20485+3608 SEI1253 distance=60' 20430+3555 HJ 1568 distance=60' 20500+3640 TOB 199 distance=62' 20399+3703 ES 248AB distance=63' 20399+3703 ES 248AC distance=63' 20397+3644 SEI1209 distance=63' 20465+3550 ES 2196 distance=64' 20502+3642 SEI1270 distance=64' 20432+3749 ES 2122AB distance=64' 20432+3749 FYM 323AC distance=64' 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 20450+3651 ES 2513 275 6.4
Show 20454+3651 SEI1238 123 8.1 6
Show 20457+3647 AG 265 207 6.8 10
Show 20458+3658 CRB 6 154 10.9 13
Show 20461+3653 ES 2514 100 2.9 14
Show 20463+3646 COU2220 Aa,Ab 299 0.7 17
Show 20463+3646 ES 2515 AB 175 6.8 17
Show 20455+3706 FIO 1 319 4.9 18
Show 20468+3648 STJ 73 231 0.9 22
Show 20431+3645 SEI1227 168 15.0 24
Show 20447+3714 SEI1233 73 5.3 24
Show 20462+3628 TDT2528 4 1.9 27
Show 20458+3715 TDT2522 89 0.5 28
Show 20444+3617 GII 53 358 0.3 34
Show 20423+3637 SEI1224 161 25.2 36
Show 20474+3629 MCA 63 Aa,Ab 46 0.1 36
Show 20474+3629 STT 413 AB 1 0.9 36
Show 20474+3629 S 765 AC 106 82.8 36
Show 20474+3629 FYM 126 AF 119 52.0 36
Show 20474+3629 FYM 126 CD 112 9.4 38
Show 20474+3629 FYM 126 CE 207 40.1 38
Show 20437+3727 COU2291 228 1.0 41
Show 20419+3711 SEI1220 161 13.0 42
Show 20416+3637 SEI1218 226 12.8 43
Show 20415+3635 SEI1216 117 11.8 45
Show 20435+3609 ES 2195 BC 91 1.8 45
Show 20435+3609 ES 2195 AB 4 20.7 45
Show 20414+3644 SEI1215 135 28.8 46
Show 20468+3730 ALI 674 328 13.0 47
Show 20410+3658 TDT2469 353 2.9 48
Show 20472+3730 J 1210 247 3.9 49
Show 20447+3739 SEI1232 240 28.9 49
Show 20417+3622 SEI1217 245 15.1 49
Show 20422+3726 SEI1223 142 10.3 49
Show 20491+3640 SEI1260 42 7.5 51
Show 20460+3601 SEI1242 214 23.6 51
Show 20450+3600 ALI 204 307 11.5 51
Show 20460+3554 TDT2525 70 0.6 58
Show 20490+3619 COU1811 255 0.8 58
Show 20423+3601 TDT2481 43 0.7 59
Show 20464+3747 SEI1244 149 22.5 60
Show 20485+3608 SEI1253 83 24.1 60
Show 20430+3555 HJ 1568 44 11.2 60
Show 20500+3640 TOB 199 109 18.8 62
Show 20399+3703 ES 248 AB 3 4.3 63
Show 20399+3703 ES 248 AC 66 10.6 63
Show 20397+3644 SEI1209 15 21.4 63
Show 20465+3550 ES 2196 70 5.6 64
Show 20502+3642 SEI1270 211 23.1 64
Show 20432+3749 ES 2122 AB 71 5.4 64
Show 20432+3749 FYM 323 AC 142 20.4 64

 
 
WDS 20450+3651 : COMPONENTS
 
 
  A
B pa=276.7°
sep=5.14"
 
 
20450+3651 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204457.37+364948.5 Mag 11 PmRA -11.00
PmDE -18.0
 
 
20450+3651 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204456.95+364949.1 Mag 11.5 PmRA 4.00
PmDE -1.0 Calc delta mag 0.5 Calc coord yes