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Current system
21505+3944
ES 211 AB


Nearby doubles
10' : 21512+3941
TDT3192

12' : 21513+3938
TDT3196

16' : 21493+3937
SEI1536

18' : 21504+3927
HO 170

27' : 21509+3918
MLB 788

33' : 21506+4017
SEI1539

37' : 21490+3912
TDT3173

38' : 21487+3914
TDS1147

41' : 21518+4022
TDT3199

44' : 21542+3953
HJ 1703

44' : 21481+3911
TDT3162

47' : 21523+4025
ES 261

50' : 21498+4033
TDT3183

51' : 21520+3857
COU1823

52' : 21529+3901
SEI1542

53' : 21459+3943
SEI1535

58' : 21492+3849
TDT3176

58' : 21506+3847
MLB 962

58' : 21458+3945
MLB 902

60' : 21454+3955
SEI1534

63' : 21450+3942
GRV 499

67' : 21512+4050
GRV 515

68' : 21526+3841
MLB 991

68' : 21538+4041
COU1980

71' : 21458+4029
ES 1693

71' : 21445+3933
A 1447



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.

21505+3944 ES 211 AB

 
 
21h 50m 29.10s +39° 44' 27.0" P.A. 197.00 sep 2.5 mag 10.88,12.21
 
 
Coord 2000 21505+3944 Discov num ES  211 Comp AB Coord arcsec 2000 21 50 29.10 +39 44 27.0
Date first 1904 Date last 2016 Obs 9
Pa first 197 Pa last 196.8 P.A. Now (θ) 196.8°
Sep first 2.6 Sep last 2.492 Sep. Now (ρ) 2.492"
Mag pri 10.88 Mag sec 12.21 delta mag (ΔM) 1.33 Spectral class
Pri motion ra +001 Sec motion ra +003
Pri motion dec +011 Sec motion dec +009
Notes
rPM=0.256 (< 0.3, Physical double)
This double is physical.
 
 
21505+3944 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 50 29 +39 44 27 ES 211 AB 2016 9 197 2.5 10.88 12.21 1.33 <===
Show 21 50 29 +39 44 27 ES 211 AC 2015 4 178 10.1 10.88 13.40 2.52
Show 21 50 29 +39 44 27 ES 211 AD 2015 4 102 21.1 10.88 13.70 2.82
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3189-00495-1 Gaia DR2 1953409061040456448 ADS 15374
 
 
WDS 21505+3944 ES 211 AB : 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
21505+3944 ES 211 AB 2003 6 197 2.5 10.88 12.21 215029.10+394427.0
21505+3944 ES 211 AB 2015 8 197 2.5 10.88 12.21 215029.10+394427.0
21505+3944 ES 211 AB 2016 9 197 2.5 10.88 12.21 215029.10+394427.0

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

 
 
WDS 21505+3944 ES 211 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21505+3944 ES 211 AB : MEASURES
 
 
No records found.

 
 
WDS 21505+3944 : VIRTUAL EYEPIECE
 
 

21505+3944 ES 211A mag 10.88 21505+3944 ES 211B sep 2.5 P.A. 193.10 mag 12.21 21505+3944 ES 211C sep 10.1 P.A. 178.20 mag 13.4 21505+3944 ES 211D sep 16.5 P.A. 104.90 mag 13.7 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 21505+3944 : ALADIN DSS IMAGE @ 21h 50m 29.10s +39° 44' 27.0"
 
 
 
 
WDS 21505+3944 ES 211 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21505+3944 ES 211AB distance=0' 21512+3941 TDT3192 distance=10' 21513+3938 TDT3196 distance=12' 21493+3937 SEI1536 distance=16' 21504+3927 HO 170 distance=18' 21509+3918 MLB 788 distance=27' 21506+4017 SEI1539 distance=33' 21490+3912 TDT3173 distance=37' 21487+3914 TDS1147 distance=38' 21518+4022 TDT3199 distance=41' 21542+3953 HJ 1703 distance=44' 21481+3911 TDT3162 distance=44' 21523+4025 ES 261 distance=47' 21498+4033 TDT3183 distance=50' 21520+3857 COU1823 distance=51' 21529+3901 SEI1542 distance=52' 21459+3943 SEI1535 distance=53' 21492+3849 TDT3176 distance=58' 21506+3847 MLB 962 distance=58' 21458+3945 MLB 902 distance=58' 21454+3955 SEI1534 distance=60' 21450+3942 GRV 499 distance=63' 21512+4050 GRV 515 distance=67' 21526+3841 MLB 991 distance=68' 21538+4041 COU1980 distance=68' 21458+4029 ES 1693 distance=71' 21445+3933 A 1447 distance=71' 21494+4058 TDT3178 distance=75' 21464+3847 MLB 961 distance=75' 21550+3851 TDT3237 distance=76' 21453+3853 TDT3139 distance=79' 21520+3826 HDS3114 distance=81' 21556+3849 A 1449 distance=81' 21550+3843 KU 62 distance=82' 21545+4052 TDT3230 distance=83' 21576+4004 SEI1546 distance=84' 21576+3912 TDT3260 distance=89' 21493+3816 A 1448 distance=90' 21522+3817 TDT3205 distance=90' 21571+3858 SEI1545 distance=90' 21431+4021 TDT3121 distance=93' 21585+3944 TDT3268 distance=93' 21556+4059 LDS5937 distance=96' 21429+3904 GRV 496 distance=97' 21574+4042 ES 1694 distance=99' 21591+4001 MLB1022 distance=100' 21590+4001 GMZ 201 distance=100' 21466+3815 COU1639 distance=101' 21552+4110 TDT3242 distance=101' 21530+4121 GRV 516 distance=102' 21484+3806 ALI 694 distance=103' 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 21505+3944 ES 211 AB 197 2.5
Show 21505+3944 ES 211 AC 178 10.1
Show 21505+3944 ES 211 AD 102 21.1
Show 21512+3941 TDT3192 118 0.5 10
Show 21513+3938 TDT3196 234 2.1 12
Show 21493+3937 SEI1536 147 28.1 16
Show 21504+3927 HO 170 256 0.3 18
Show 21509+3918 MLB 788 52 4.9 27
Show 21506+4017 SEI1539 260 27.0 33
Show 21490+3912 TDT3173 137 0.6 37
Show 21487+3914 TDS1147 26 1.0 38
Show 21518+4022 TDT3199 341 3.9 41
Show 21542+3953 HJ 1703 82 8.9 44
Show 21481+3911 TDT3162 146 2.0 44
Show 21523+4025 ES 261 165 5.1 47
Show 21498+4033 TDT3183 55 0.8 50
Show 21520+3857 COU1823 13 1.0 51
Show 21529+3901 SEI1542 172 29.7 52
Show 21459+3943 SEI1535 229 8.5 53
Show 21492+3849 TDT3176 1 2.3 58
Show 21506+3847 MLB 962 322 4.4 58
Show 21458+3945 MLB 902 327 5.6 58
Show 21454+3955 SEI1534 189 27.8 60
Show 21450+3942 GRV 499 170 67.4 63
Show 21512+4050 GRV 515 313 28.2 67
Show 21526+3841 MLB 991 4.4 68
Show 21538+4041 COU1980 247 1.5 68
Show 21458+4029 ES 1693 34 7.4 71
Show 21445+3933 A 1447 243 0.4 71
Show 21494+4058 TDT3178 251 0.6 75
Show 21464+3847 MLB 961 4 6.5 75
Show 21550+3851 TDT3237 115 1.7 76
Show 21453+3853 TDT3139 65 0.5 79
Show 21520+3826 HDS3114 119 0.1 81
Show 21556+3849 A 1449 50 0.3 81
Show 21550+3843 KU 62 54 1.6 82
Show 21545+4052 TDT3230 222 2.0 83
Show 21576+4004 SEI1546 212 29.0 84
Show 21576+3912 TDT3260 304 0.5 89
Show 21493+3816 A 1448 331 4.7 90
Show 21522+3817 TDT3205 142 0.5 90
Show 21571+3858 SEI1545 324 5.8 90
Show 21431+4021 TDT3121 157 1.7 93
Show 21585+3944 TDT3268 318 0.5 93
Show 21556+4059 LDS5937 141 6.3 96
Show 21429+3904 GRV 496 72 29.9 97
Show 21574+4042 ES 1694 66 1.7 99
Show 21591+4001 MLB1022 246 8.1 100
Show 21590+4001 GMZ 201 114 12.8 100
Show 21466+3815 COU1639 204 1.8 101
Show 21552+4110 TDT3242 200 2.3 101

 
 
WDS 21505+3944 : COMPONENTS
 
 
  A B C
B pa=193.1°
sep=2.45"
 
C pa=178.2°
sep=10.08"
pa=173.5°
sep=7.74"
 
D pa=104.9°
sep=16.46"
pa=96.4°
sep=16.57"
pa=69.5°
sep=16.64"
 
 
21505+3944 A
 
 
Coord arcsec 2000 215029.10+394427.0 Mag 10.88 PmRA 1.00 PmDE 11.0
Tycho2 3189-00495-1 ADS 15374 DM BD+39 4683
Tycho2
Tycho2 3189-00495-1 Pflag RAmdeg 327.62126935 DEmdeg 39.74082379
PmRA 2.9 PmDE 8.9 E RAmdeg 31 E DEmdeg 28
E pmRA 1.7 E pmDE 1.6 EpRAm 1987.42 EpDEm 1987.91
Num 4 Q RAmdeg 0.7 Q DEmdeg 1.8 Q pmRA 0.6
Q pmDE 1.8 BTmag 11.345 E BTmag 0.050 VTmag 10.881
E VTmag 0.051 Prox 999 TYC T HIP
CCDM RAdeg 327.62126000 DEdeg 39.74080278 EpRA 1990 1.53
EpDE 1990 1.64 E RAdeg 32.3 E DEdeg 29.1 Posflg
Corr 0.1
 
 
21505+3944 B
 
 
Coord arcsec 2000 215029.05+394424.6 Mag 12.21 PmRA 3.00 PmDE 9.0
Calc delta mag 1.33 Calc coord yes
 
 
21505+3944 C
 
 
Coord arcsec 2000 215029.13+394416.9 Mag 13.4 Calc delta mag 2.52 Calc coord yes
 
 
21505+3944 D
 
 
Coord arcsec 2000 215030.48+394422.8 Mag 13.7 PmRA -5.00 PmDE -2.0
Calc delta mag 2.82 Calc coord yes