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Doubles in session


Current system
20201+3921
ES 2050 AB


Nearby doubles
2' : 20200+3921
MLB 882

3' : 20203+3920
SEI1090

3' : 20203+3922
SEI1091

4' : 20203+3919
BKO 566

4' : 20203+3924
A 1427AB

6' : 20206+3919
TDS1061

8' : 20206+3917
BKO 567AB

8' : 20207+3922
SEI1094

9' : 20208+3922
BKO 568

9' : 20208+3919
TDT2196

12' : 20210+3919
SEI1097AB

12' : 20209+3928
HO 127

13' : 20191+3916
TRN 28AB

13' : 20199+3933
HO 593

17' : 20188+3924
SEI1078

20' : 20185+3916
MLB 881

20' : 20192+3938
ES 2051

20' : 20188+3909
SEI1079

25' : 20192+3859
HO 126AB

25' : 20190+3900
HO 125

26' : 20216+3902
SEI1101

26' : 20214+3900
GRV 334

28' : 20189+3945
COU2537

28' : 20177+3921
SEI1070

30' : 20177+3914
COU2536

30' : 20198+3852
SLE1004



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.

20201+3921 ES 2050 AB

 
 
20h 20m 06.87s +39° 21' 17.6" P.A. 92.00 sep 5.9 mag 9.50,12.50
 
 
Coord 2000 20201+3921 Discov num ES 2050 Comp AB Coord arcsec 2000 20 20 06.87 +39 21 17.6
Date first 1923 Date last 2015 Obs 7
Pa first 93 Pa last 92.2 P.A. Now (θ) 92.2°
Sep first 6.0 Sep last 5.861 Sep. Now (ρ) 5.861"
Mag pri 9.50 Mag sec 12.50 delta mag (ΔM) 3 Spectral class
Pri motion ra -005 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20201+3921 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 20 07 +39 21 18 ES 2050 AB 2015 7 92 5.9 9.50 12.50 3.00 <===
Show 20 20 07 +39 21 18 ES 2050 AC 2015 10 191 11.2 9.50 13.80 4.30
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3152-01557-1 Gaia DR2 2061461912692370688
 
 
WDS 20201+3921 ES 2050 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
20201+3921 ES 2050 AB 1935 3 97 6.1 9.62 13.10 202006.87+392117.6
20201+3921 ES 2050 AB 2008 4 94 6.4 9.62 13.10 202006.87+392117.6
20201+3921 ES 2050 AB 2015 5 92 5.9 9.50 12.50 202006.87+392117.6

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

 
 
WDS 20201+3921 ES 2050 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20201+3921 ES 2050 AB : MEASURES
 
 
No records found.

 
 
WDS 20201+3921 : VIRTUAL EYEPIECE
 
 

20201+3921 ES 2050A mag 9.5 20201+3921 ES 2050B sep 4.5 P.A. 92.80 mag 12.5 20201+3921 ES 2050C sep 11.1 P.A. 188.50 mag 13.8 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 20201+3921 : ALADIN DSS IMAGE @ 20h 20m 06.87s +39° 21' 17.6"
 
 
 
 
WDS 20201+3921 ES 2050 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20201+3921 ES 2050AB distance=0' 20200+3921 MLB 882 distance=2' 20203+3920 SEI1090 distance=3' 20203+3922 SEI1091 distance=3' 20203+3919 BKO 566 distance=4' 20203+3924 A 1427AB distance=4' 20203+3924 STF2668AB,C distance=4' 20206+3919 TDS1061 distance=6' 20206+3917 BKO 567AB distance=8' 20206+3917 BKO 567AC distance=8' 20207+3922 SEI1094 distance=8' 20208+3922 BKO 568 distance=9' 20208+3919 TDT2196 distance=9' 20210+3919 SEI1097AB distance=12' 20210+3919 TOB 186BC distance=12' 20209+3928 HO 127 distance=12' 20191+3916 TRN 28AB distance=13' 20191+3916 TRN 28AC distance=13' 20199+3933 HO 593 distance=13' 20188+3924 SEI1078 distance=17' 20185+3916 MLB 881 distance=20' 20192+3938 ES 2051 distance=20' 20188+3909 SEI1079 distance=20' 20192+3859 HO 126AB distance=25' 20192+3859 HO 126AC distance=25' 20190+3900 HO 125 distance=25' 20216+3902 SEI1101 distance=26' 20214+3900 GRV 334 distance=26' 20189+3945 COU2537 distance=28' 20177+3921 SEI1070 distance=28' 20177+3914 COU2536 distance=30' 20198+3852 SLE1004 distance=30' 20215+3950 SEI1103 distance=33' 20230+3913 SEI1107BC distance=34' 20230+3913 STTA206AB distance=35' 20230+3913 STTA206AD distance=35' 20221+3855 SEI1104 distance=35' 20184+3950 A 1424 distance=36' 20198+3958 MLB1014 distance=37' 20203+3958 BRT2260 distance=38' 20183+3953 BKO 822 distance=39' 20199+4000 MLB1015 distance=39' 20235+3918 SEI1111 distance=40' 20229+3856 SEI1106 distance=41' 20202+3840 SLE1006AB distance=42' 20202+3840 SLE1006AC distance=42' 20204+3840 SEI1088AB distance=42' 20204+3840 SEI1089AC distance=42' 20168+3942 DAM1040FG distance=44' 20167+3938 HO 590AB distance=44' 20167+3938 HO 590AC distance=44' 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 20201+3921 ES 2050 AB 92 5.9
Show 20201+3921 ES 2050 AC 191 11.2
Show 20200+3921 MLB 882 279 5.0 2
Show 20203+3920 SEI1090 154 13.9 3
Show 20203+3922 SEI1091 180 27.7 3
Show 20203+3919 BKO 566 159 5.9 4
Show 20203+3924 A 1427 AB 132 0.2 4
Show 20203+3924 STF2668 AB,C 280 3.5 4
Show 20206+3919 TDS1061 345 1.5 6
Show 20206+3917 BKO 567 AB 284 5.6 8
Show 20206+3917 BKO 567 AC 87 5.2 8
Show 20207+3922 SEI1094 316 27.1 8
Show 20208+3922 BKO 568 249 8.1 9
Show 20208+3919 TDT2196 192 0.4 9
Show 20210+3919 SEI1097 AB 44 27.2 12
Show 20210+3919 TOB 186 BC 51 16.2 12
Show 20209+3928 HO 127 94 1.9 12
Show 20191+3916 TRN 28 AB 80 4.9 13
Show 20191+3916 TRN 28 AC 158 3.2 13
Show 20199+3933 HO 593 313 5.0 13
Show 20188+3924 SEI1078 45 17.7 17
Show 20185+3916 MLB 881 145 10.3 20
Show 20192+3938 ES 2051 306 4.9 20
Show 20188+3909 SEI1079 110 6.2 20
Show 20192+3859 HO 126 AB 163 2.2 25
Show 20192+3859 HO 126 AC 247 37.0 25
Show 20190+3900 HO 125 196 3.5 25
Show 20216+3902 SEI1101 11 11.6 26
Show 20214+3900 GRV 334 275 31.1 26
Show 20189+3945 COU2537 295 0.8 28
Show 20177+3921 SEI1070 143 27.9 28
Show 20177+3914 COU2536 312 1.8 30
Show 20198+3852 SLE1004 166 11.2 30
Show 20215+3950 SEI1103 223 17.0 33
Show 20230+3913 SEI1107 BC 69 19.3 34
Show 20230+3913 STTA206 AB 254 43.7 35
Show 20230+3913 STTA206 AD 259 24.5 35
Show 20221+3855 SEI1104 195 18.2 35
Show 20184+3950 A 1424 46 1.1 36
Show 20198+3958 MLB1014 241 7.6 37
Show 20203+3958 BRT2260 9 3.2 38
Show 20183+3953 BKO 822 60 7.1 39
Show 20199+4000 MLB1015 89 4.0 39
Show 20235+3918 SEI1111 10 25.3 40
Show 20229+3856 SEI1106 109 3.8 41
Show 20202+3840 SLE1006 AB 156 16.0 42
Show 20202+3840 SLE1006 AC 90 18.7 42
Show 20204+3840 SEI1088 AB 238 4.3 42
Show 20204+3840 SEI1089 AC 17 28.2 42
Show 20168+3942 DAM1040 FG 225 3.5 44
Show 20167+3938 HO 590 AB 207 3.5 44

 
 
WDS 20201+3921 : COMPONENTS
 
 
  A B
B pa=92.8°
sep=4.53"
 
C pa=188.5°
sep=11.14"
pa=209.8°
sep=12.43"
 
 
20201+3921 A
 
 
Coord arcsec 2000 202006.87+392117.6 Mag 9.5 PmRA -5.00 PmDE -4.0
Tycho2 3152-01557-1
Tycho2
Tycho2 3152-01557-1 Pflag RAmdeg 305.02866445 DEmdeg 39.35490797
PmRA -4.5 PmDE -4.1 E RAmdeg 19 E DEmdeg 17
E pmRA 1.2 E pmDE 1.2 EpRAm 1987.87 EpDEm 1988.81
Num 6 Q RAmdeg 3.5 Q DEmdeg 1.8 Q pmRA 3.7
Q pmDE 1.9 BTmag 10.863 E BTmag 0.046 VTmag 9.621
E VTmag 0.024 Prox 999 TYC T HIP
CCDM RAdeg 305.02865806 DEdeg 39.35492222 EpRA 1990 1.58
EpDE 1990 1.71 E RAdeg 20.6 E DEdeg 18.1 Posflg
Corr 0.1
 
 
20201+3921 B
 
 
Coord arcsec 2000 202007.26+392117.4 Mag 12.5 Calc delta mag 3 Calc coord yes
 
 
20201+3921 C
 
 
Coord arcsec 2000 202006.73+392106.6 Mag 13.8 PmRA -5.00 PmDE -7.0
Calc delta mag 4.3 Calc coord yes