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Current system
21272+3752
ES 2520


Nearby doubles
16' : 21284+3745
TDT2983

18' : 21287+3755
KPP1064

22' : 21268+3731
SEI1516AB

35' : 21250+3814
TDT2950

36' : 21295+3728
SEI1519

38' : 21278+3715
SEI1518

38' : 21243+3740
WSI 7

38' : 21257+3824
TDT2955

39' : 21241+3741
SEI1458

41' : 21264+3712
SEI1514

44' : 21278+3835
KU 61AB

47' : 21233+3801
ES 2519

49' : 21294+3833
TDT2992

50' : 21233+3810
ALI 690

50' : 21249+3711
TDS1126

51' : 21252+3708
SEI1513

52' : 21238+3721
STFA 55AB

53' : 21228+3754
WIS 349

56' : 21226+3744
COU1820

57' : 21231+3821
ALI 689

58' : 21317+3730
GRV 474

60' : 21239+3837
GRV 461

62' : 21323+3811
ES 2063

63' : 21305+3701
SEI1521AB

63' : 21221+3734
ES 2517

71' : 21321+3834
ES 2064



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.

21272+3752 ES 2520

 
 
21h 27m 15.10s +37° 51' 43.2" P.A. 238.00 sep 6.2 mag 13.10,14.10
 
 
Coord 2000 21272+3752 Discov num ES 2520 Comp Coord arcsec 2000 21 27 15.10 +37 51 43.2
Date first 1931 Date last 2015 Obs 7
Pa first 242 Pa last 238.2 P.A. Now (θ) 238.2°
Sep first 5.7 Sep last 6.203 Sep. Now (ρ) 6.203"
Mag pri 13.10 Mag sec 14.10 delta mag (ΔM) 1 Spectral class
Pri motion ra +007 Sec motion ra -003
Pri motion dec +000 Sec motion dec +001
Notes
rPM=1.436
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1964213171535669504
 
 
WDS 21272+3752 ES 2520 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
21272+3752 ES 2520 1931 1 242 5.7 10.00 11.50
21272+3752 ES 2520 2000 2 238 6.1 13.10 14.10 D 212715.10+375143.2
21272+3752 ES 2520 2002 3 238 5.9 13.10 14.10 D 212715.10+375143.2
21272+3752 ES 2520 2010 4 239 5.6 13.10 14.10 212715.10+375143.2
21272+3752 ES 2520 2015 4 238 6.2 13.10 14.10 212715.10+375143.2

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

 
 
WDS 21272+3752 ES 2520 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21272+3752 ES 2520 : MEASURES
 
 
No records found.

 
 
WDS 21272+3752 : VIRTUAL EYEPIECE
 
 

21272+3752 ES 2520A mag 13.1 21272+3752 ES 2520B sep 5.3 P.A. 231.90 mag 14.1 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 21272+3752 : ALADIN DSS IMAGE @ 21h 27m 15.10s +37° 51' 43.2"
 
 
 
 
WDS 21272+3752 ES 2520 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21272+3752 ES 2520 distance=0' 21284+3745 TDT2983 distance=16' 21287+3755 KPP1064 distance=18' 21268+3731 COU1821Da,Db distance=21' 21268+3731 SEI1516AB distance=22' 21268+3731 HEI9004AC distance=22' 21268+3731 HEI9004AD distance=22' 21250+3814 TDT2950 distance=35' 21295+3728 SEI1519 distance=36' 21278+3715 SEI1518 distance=38' 21243+3740 WSI 7 distance=38' 21257+3824 TDT2955 distance=38' 21241+3741 SEI1458 distance=39' 21264+3712 SEI1514 distance=41' 21278+3835 KU 61AB distance=44' 21278+3835 KU 61AC distance=44' 21278+3835 KU 61AD distance=44' 21233+3801 ES 2519 distance=47' 21294+3833 TDT2992 distance=49' 21233+3810 ALI 690 distance=50' 21249+3711 TDS1126 distance=50' 21252+3708 SEI1513 distance=51' 21238+3721 STFA 55AB distance=52' 21238+3721 STFA 55AC distance=52' 21238+3721 STFA 55AF distance=52' 21238+3721 STFA 55CD distance=52' 21238+3721 STFA 55CE distance=52' 21228+3754 WIS 349 distance=53' 21226+3744 COU1820 distance=56' 21231+3821 ALI 689 distance=57' 21317+3730 GRV 474 distance=58' 21239+3837 GRV 461 distance=60' 21323+3811 ES 2063 distance=62' 21305+3701 SEI1521AB distance=63' 21305+3701 GII 102Aa,Ab distance=63' 21221+3734 ES 2517 distance=63' 21321+3834 ES 2064 distance=71' 21283+3640 CRB 142 distance=73' 21322+3835 TDT3017 distance=74' 21258+3640 FYM 124CD distance=74' 21258+3640 S 790AB distance=74' 21258+3640 S 790AC distance=74' 21331+3726 SEI1525 distance=75' 21311+3652 HJ 1653 distance=76' 21215+3719 ROE 24AB distance=76' 21215+3719 ROE 24AD distance=76' 21215+3719 ROE 24AC distance=76' 21294+3640 CRB 16 distance=76' 21323+3839 ALI 974 distance=77' 21304+3859 KU 131 distance=77' 21215+3719 ROE 23CD distance=77' 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 21272+3752 ES 2520 238 6.2
Show 21284+3745 TDT2983 111 0.5 16
Show 21287+3755 KPP1064 246 8.5 18
Show 21268+3731 COU1821 Da,Db 96 0.7 21
Show 21268+3731 SEI1516 AB 335 3.9 22
Show 21268+3731 HEI9004 AC 275 25.5 22
Show 21268+3731 HEI9004 AD 335 109.8 22
Show 21250+3814 TDT2950 200 1.6 35
Show 21295+3728 SEI1519 181 13.8 36
Show 21278+3715 SEI1518 143 15.5 38
Show 21243+3740 WSI 7 44 0.1 38
Show 21257+3824 TDT2955 18 0.5 38
Show 21241+3741 SEI1458 312 7.9 39
Show 21264+3712 SEI1514 184 12.0 41
Show 21278+3835 KU 61 AB 271 3.9 44
Show 21278+3835 KU 61 AC 206 14.3 44
Show 21278+3835 KU 61 AD 235 25.7 44
Show 21233+3801 ES 2519 224 6.5 47
Show 21294+3833 TDT2992 109 2.1 49
Show 21233+3810 ALI 690 65 8.8 50
Show 21249+3711 TDS1126 314 1.9 50
Show 21252+3708 SEI1513 90 14.5 51
Show 21238+3721 STFA 55 AB 304 364.1 52
Show 21238+3721 STFA 55 AC 154 178.3 52
Show 21238+3721 STFA 55 AF 201 22.8 52
Show 21238+3721 STFA 55 CD 183 12.8 52
Show 21238+3721 STFA 55 CE 320 17.7 52
Show 21228+3754 WIS 349 176 44.9 53
Show 21226+3744 COU1820 319 1.4 56
Show 21231+3821 ALI 689 107 14.6 57
Show 21317+3730 GRV 474 236 24.6 58
Show 21239+3837 GRV 461 197 65.7 60
Show 21323+3811 ES 2063 227 2.7 62
Show 21305+3701 SEI1521 AB 225 2.9 63
Show 21305+3701 GII 102 Aa,Ab 306 0.4 63
Show 21221+3734 ES 2517 115 5.3 63
Show 21321+3834 ES 2064 244 11.5 71
Show 21283+3640 CRB 142 46 25.7 73
Show 21322+3835 TDT3017 267 0.8 74
Show 21258+3640 FYM 124 CD 84 19.4 74
Show 21258+3640 S 790 AB 28 34.5 74
Show 21258+3640 S 790 AC 99 53.1 74
Show 21331+3726 SEI1525 100 15.0 75
Show 21311+3652 HJ 1653 195 19.5 76
Show 21215+3719 ROE 24 AB 168 10.3 76
Show 21215+3719 ROE 24 AD 266 81.7 76
Show 21215+3719 ROE 24 AC 266 68.7 76
Show 21294+3640 CRB 16 56 111.6 76
Show 21323+3839 ALI 974 210 10.6 77
Show 21304+3859 KU 131 12 36.7 77
Show 21215+3719 ROE 23 CD 261 13.1 77

 
 
WDS 21272+3752 : COMPONENTS
 
 
  A
B pa=231.9°
sep=5.29"
 
 
21272+3752 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 212715.10+375143.2 Mag 13.1 PmRA 7.00
PmDE 0.0
 
 
21272+3752 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212714.75+375139.9 Mag 14.1 PmRA -3.00
PmDE 1.0 Calc delta mag 1 Calc coord yes