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Doubles in session


Current system
20442+4206
ES 1572


Nearby doubles
28' : 20417+4202
ES 1570

35' : 20434+4131
HJ 1571

36' : 20447+4131
MLB 25

36' : 20425+4235
GRV 369

37' : 20428+4132
ES 1571

39' : 20472+4225
STT 414AB

39' : 20477+4204
BU 268

41' : 20479+4204
ES 1573

46' : 20428+4123
RAO 619

46' : 20408+4231
CBL 84

48' : 20421+4125
COU2420

51' : 20399+4221
FMR 159

52' : 20396+4202
A 399

53' : 20396+4215
GNS 11

58' : 20480+4126
ES 1681

62' : 20444+4103
COU2423AB

68' : 20429+4311
ES 1446

73' : 20437+4318
ES 1447

76' : 20413+4314
BRT2270

77' : 20474+4314
TDT2539

80' : 20508+4238
LDS2457

80' : 20511+4224
BRT2277

80' : 20375+4233
A 398

81' : 20413+4051
COU2419

81' : 20390+4109
TDT2451

85' : 20446+4041
HJ 1574



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.

20442+4206 ES 1572

 
 
20h 44m 13.06s +42° 05' 13.4" P.A. 141.00 sep 5.8 mag 10.05,14.40
 
 
Coord 2000 20442+4206 Discov num ES 1572 Comp Coord arcsec 2000 20 44 13.06 +42 05 13.4
Date first 1916 Date last 2015 Obs 5
Pa first 167 Pa last 141.2 P.A. Now (θ) 141.2°
Sep first 6.0 Sep last 5.799 Sep. Now (ρ) 5.799"
Mag pri 10.05 Mag sec 14.40 delta mag (ΔM) 4.35 Spectral class
Pri motion ra -020 Sec motion ra
Pri motion dec -020 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3174-00741-1 Gaia DR2 2066271593167963648
 
 
WDS 20442+4206 ES 1572 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
20442+4206 ES 1572 1916 1 167 6.0 10.05 14.40 204413.06+420513.4
20442+4206 ES 1572 2011 2 143 5.7 10.05 14.40 204413.06+420513.4
20442+4206 ES 1572 2015 3 141 5.8 10.05 14.40 204413.06+420513.4

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

 
 
WDS 20442+4206 ES 1572 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20442+4206 ES 1572 : MEASURES
 
 
No records found.

 
 
WDS 20442+4206 : VIRTUAL EYEPIECE
 
 

20442+4206 ES 1572A mag 10.05 20442+4206 ES 1572B sep 5.3 P.A. 149.20 mag 14.4 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 20442+4206 : ALADIN DSS IMAGE @ 20h 44m 13.06s +42° 05' 13.4"
 
 
 
 
WDS 20442+4206 ES 1572 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20442+4206 ES 1572 distance=0' 20417+4202 ES 1570 distance=28' 20434+4131 HJ 1571 distance=35' 20447+4131 MLB 25 distance=36' 20425+4235 GRV 369 distance=36' 20428+4132 ES 1571 distance=37' 20472+4225 STT 414AB distance=39' 20472+4225 BOT 4AC distance=39' 20477+4204 BU 268 distance=39' 20479+4204 ES 1573 distance=41' 20428+4123 RAO 619 distance=46' 20408+4231 CBL 84 distance=46' 20421+4125 COU2420 distance=48' 20399+4221 FMR 159 distance=51' 20396+4202 A 399 distance=52' 20396+4215 GNS 11 distance=53' 20480+4126 ES 1681 distance=58' 20444+4103 COU2423AB distance=62' 20444+4103 GRV 375AC distance=62' 20429+4311 ES 1446 distance=68' 20437+4318 ES 1447 distance=73' 20413+4314 BRT2270 distance=76' 20474+4314 TDT2539 distance=77' 20508+4238 LDS2457 distance=80' 20511+4224 BRT2277 distance=80' 20375+4233 A 398 distance=80' 20413+4051 COU2419 distance=81' 20390+4109 TDT2451 distance=81' 20446+4041 HJ 1574 distance=85' 20407+4321 STF2719 distance=86' 20513+4238 A 614 distance=86' 20446+4040 HJ 1573 distance=86' 20514+4134 LDS2460 distance=86' 20510+4125 COU2427 distance=87' 20508+4120 TDT2575 distance=87' 20509+4123 LDS2458 distance=87' 20449+4332 ES 1448 distance=87' 20422+4041 MLB 23 distance=88' 20393+4315 DAM 217 distance=88' 20366+4139 TDT2416 distance=89' 20429+4036 MLB 24 distance=90' 20519+4140 COU2428 distance=90' 20394+4318 COU2539 distance=91' 20452+4337 ES 1449 distance=93' 20455+4338 A 611 distance=94' 20440+4030 SLN 85 distance=96' 20476+4038 CNT 9 distance=96' 20525+4138 LDS2463 distance=96' 20415+4336 BVD 270 distance=96' 20470+4335 GRV 380AB distance=96' 20470+4335 GRV 380AC distance=96' 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 20442+4206 ES 1572 141 5.8
Show 20417+4202 ES 1570 118 4.7 28
Show 20434+4131 HJ 1571 59 7.3 35
Show 20447+4131 MLB 25 207 5.7 36
Show 20425+4235 GRV 369 26 24.8 36
Show 20428+4132 ES 1571 39 7.4 37
Show 20472+4225 STT 414 AB 95 9.9 39
Show 20472+4225 BOT 4 AC 16 104.9 39
Show 20477+4204 BU 268 201 0.4 39
Show 20479+4204 ES 1573 39 5.0 41
Show 20428+4123 RAO 619 141 0.6 46
Show 20408+4231 CBL 84 160 16.0 46
Show 20421+4125 COU2420 90 0.5 48
Show 20399+4221 FMR 159 76 135.7 51
Show 20396+4202 A 399 82 0.9 52
Show 20396+4215 GNS 11 182 3.7 53
Show 20480+4126 ES 1681 146 2.1 58
Show 20444+4103 COU2423 AB 180 0.3 62
Show 20444+4103 GRV 375 AC 197 31.4 62
Show 20429+4311 ES 1446 134 4.5 68
Show 20437+4318 ES 1447 308 2.4 73
Show 20413+4314 BRT2270 207 4.4 76
Show 20474+4314 TDT2539 77 0.5 77
Show 20508+4238 LDS2457 106 5.1 80
Show 20511+4224 BRT2277 230 4.2 80
Show 20375+4233 A 398 22 1.7 80
Show 20413+4051 COU2419 69 0.8 81
Show 20390+4109 TDT2451 105 0.7 81
Show 20446+4041 HJ 1574 278 7.4 85
Show 20407+4321 STF2719 142 14.2 86
Show 20513+4238 A 614 333 1.5 86
Show 20446+4040 HJ 1573 274 9.8 86
Show 20514+4134 LDS2460 195 8.4 86
Show 20510+4125 COU2427 312 0.5 87
Show 20508+4120 TDT2575 4 2.6 87
Show 20509+4123 LDS2458 123 14.1 87
Show 20449+4332 ES 1448 142 2.0 87
Show 20422+4041 MLB 23 41 7.6 88
Show 20393+4315 DAM 217 281 9.7 88
Show 20366+4139 TDT2416 352 0.7 89
Show 20429+4036 MLB 24 175 5.9 90
Show 20519+4140 COU2428 113 0.7 90
Show 20394+4318 COU2539 64 0.4 91
Show 20452+4337 ES 1449 57 6.7 93
Show 20455+4338 A 611 176 0.3 94
Show 20440+4030 SLN 85 203 9.1 96
Show 20476+4038 CNT 9 292 9.0 96
Show 20525+4138 LDS2463 151 27.8 96
Show 20415+4336 BVD 270 76 26.0 96
Show 20470+4335 GRV 380 AB 16 21.4 96
Show 20470+4335 GRV 380 AC 312 44.6 96

 
 
WDS 20442+4206 : COMPONENTS
 
 
  A
B pa=149.2°
sep=5.26"
 
 
20442+4206 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204413.06+420513.4 Mag 10.05 PmRA -20.00
PmDE -20.0 Tycho2 3174-00741-1
Tycho2
Tycho2 3174-00741-1 Pflag RAmdeg 311.05445101 DEmdeg 42.08704611
PmRA -20.1 PmDE -19.6 E RAmdeg 23 E DEmdeg 21
E pmRA 1.6 E pmDE 1.5 EpRAm 1988.70 EpDEm 1988.34
Num 4 Q RAmdeg 1.9 Q DEmdeg 3.6 Q pmRA 1.9
Q pmDE 3.7 BTmag 11.586 E BTmag 0.067 VTmag 10.045
E VTmag 0.029 Prox 923 TYC T HIP
CCDM RAdeg 311.05450750 DEdeg 42.08710583 EpRA 1990 1.55
EpDE 1990 1.74 E RAdeg 25.0 E DEdeg 24.0 Posflg
Corr 0.0
 
 
20442+4206 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204413.30+420508.9 Mag 14.4 Calc delta mag 4.35
Calc coord yes