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Doubles in session


Current system
20480+4126
ES 1681


Nearby doubles
32' : 20508+4120
TDT2575

34' : 20509+4123
LDS2458

35' : 20510+4125
COU2427

38' : 20447+4131
MLB 25

39' : 20514+4134
LDS2460

39' : 20479+4204
ES 1573

39' : 20477+4204
BU 268

45' : 20485+4041
ES 1682

46' : 20444+4103
COU2423AB

46' : 20516+4106
ES 1683

47' : 20519+4140
COU2428

48' : 20476+4038
CNT 9

50' : 20511+4051
TDT2578

51' : 20434+4131
HJ 1571

52' : 20525+4138
LDS2463

53' : 20495+4035
COU2426

58' : 20442+4206
ES 1572

58' : 20428+4132
ES 1571

58' : 20428+4123
RAO 619

59' : 20446+4041
HJ 1574

60' : 20446+4040
HJ 1573

60' : 20472+4225
STT 414AB

63' : 20534+4139
ES 1574

63' : 20488+4024
ALI1192

67' : 20421+4125
COU2420

68' : 20466+4020
ES 1982



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.

20480+4126 ES 1681

 
 
20h 47m 57.87s +41° 25' 33.0" P.A. 146.00 sep 2.1 mag 10.54,11.12 Sp A0
 
 
Coord 2000 20480+4126 Discov num ES 1681 Comp Coord arcsec 2000 20 47 57.87 +41 25 33.0
Date first 1917 Date last 2018 Obs 6
Pa first 144 Pa last 145.8 P.A. Now (θ) 145.8°
Sep first 2.2 Sep last 2.134 Sep. Now (ρ) 2.134"
Mag pri 10.54 Mag sec 11.12 delta mag (ΔM) 0.58 Spectral class A0 (white)
Pri motion ra +001 Sec motion ra +001
Pri motion dec -004 Sec motion dec -004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3174-00591-1 Gaia DR2 2065450979539382656
 
 
WDS 20480+4126 ES 1681 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
20480+4126 ES 1681 2001 4 154 2.1 10.54 11.12 A0 204757.87+412533.0
20480+4126 ES 1681 2015 5 146 2.1 10.54 11.12 A0 204757.87+412533.0
20480+4126 ES 1681 2018 6 146 2.1 10.54 11.12 A0 204757.87+412533.0

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

 
 
WDS 20480+4126 ES 1681 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20480+4126 ES 1681 : MEASURES
 
 
No records found.

 
 
WDS 20480+4126 : VIRTUAL EYEPIECE
 
 

20480+4126 ES 1681A mag 10.54 Sp A0 20480+4126 ES 1681B sep 2.0 P.A. 153.00 mag 11.12 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 20480+4126 : ALADIN DSS IMAGE @ 20h 47m 57.87s +41° 25' 33.0"
 
 
 
 
WDS 20480+4126 ES 1681 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20480+4126 ES 1681 distance=0' 20508+4120 TDT2575 distance=32' 20509+4123 LDS2458 distance=34' 20510+4125 COU2427 distance=35' 20447+4131 MLB 25 distance=38' 20514+4134 LDS2460 distance=39' 20479+4204 ES 1573 distance=39' 20477+4204 BU 268 distance=39' 20485+4041 ES 1682 distance=45' 20444+4103 COU2423AB distance=46' 20444+4103 GRV 375AC distance=46' 20516+4106 ES 1683 distance=46' 20519+4140 COU2428 distance=47' 20476+4038 CNT 9 distance=48' 20511+4051 TDT2578 distance=50' 20434+4131 HJ 1571 distance=51' 20525+4138 LDS2463 distance=52' 20495+4035 COU2426 distance=53' 20442+4206 ES 1572 distance=58' 20428+4132 ES 1571 distance=58' 20428+4123 RAO 619 distance=58' 20446+4041 HJ 1574 distance=59' 20446+4040 HJ 1573 distance=60' 20472+4225 STT 414AB distance=60' 20472+4225 BOT 4AC distance=60' 20534+4139 ES 1574 distance=63' 20488+4024 ALI1192 distance=63' 20421+4125 COU2420 distance=67' 20466+4020 ES 1982 distance=68' 20539+4139 BRT2280 distance=68' 20539+4115 KPP1503 distance=68' 20454+4023 OSO 133AB distance=69' 20454+4023 OSO 133AC distance=69' 20454+4023 OSO 133AD distance=69' 20454+4023 OSO 133AE distance=69' 20511+4224 BRT2277 distance=70' 20444+4027 TDT2510 distance=71' 20440+4030 SLN 85 distance=72' 20542+4111 ES 1684 distance=72' 20534+4208 LDS2464 distance=74' 20429+4036 MLB 24 distance=76' 20456+4014 TDT2519 distance=76' 20436+4024 DAM1256 distance=79' 20508+4238 LDS2457 distance=79' 20422+4041 MLB 23 distance=80' 20417+4202 ES 1570 distance=80' 20454+4011 TDT2518 distance=80' 20432+4026 COU2421 distance=81' 20526+4024 GRV 391 distance=81' 20513+4238 A 614 distance=82' 20453+4010 COU2293 distance=82' 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 20480+4126 ES 1681 146 2.1
Show 20508+4120 TDT2575 4 2.6 32
Show 20509+4123 LDS2458 123 14.1 34
Show 20510+4125 COU2427 312 0.5 35
Show 20447+4131 MLB 25 207 5.7 38
Show 20514+4134 LDS2460 195 8.4 39
Show 20479+4204 ES 1573 39 5.0 39
Show 20477+4204 BU 268 201 0.4 39
Show 20485+4041 ES 1682 152 3.1 45
Show 20444+4103 COU2423 AB 180 0.3 46
Show 20444+4103 GRV 375 AC 197 31.4 46
Show 20516+4106 ES 1683 205 5.2 46
Show 20519+4140 COU2428 113 0.7 47
Show 20476+4038 CNT 9 292 9.0 48
Show 20511+4051 TDT2578 81 2.6 50
Show 20434+4131 HJ 1571 59 7.3 51
Show 20525+4138 LDS2463 151 27.8 52
Show 20495+4035 COU2426 328 1.2 53
Show 20442+4206 ES 1572 141 5.8 58
Show 20428+4132 ES 1571 39 7.4 58
Show 20428+4123 RAO 619 141 0.6 58
Show 20446+4041 HJ 1574 278 7.4 59
Show 20446+4040 HJ 1573 274 9.8 60
Show 20472+4225 STT 414 AB 95 9.9 60
Show 20472+4225 BOT 4 AC 16 104.9 60
Show 20534+4139 ES 1574 158 1.4 63
Show 20488+4024 ALI1192 2 16.5 63
Show 20421+4125 COU2420 90 0.5 67
Show 20466+4020 ES 1982 301 3.9 68
Show 20539+4139 BRT2280 192 5.0 68
Show 20539+4115 KPP1503 94 11.3 68
Show 20454+4023 OSO 133 AB 114 12.0 69
Show 20454+4023 OSO 133 AC 236 11.7 69
Show 20454+4023 OSO 133 AD 67 21.8 69
Show 20454+4023 OSO 133 AE 8 22.4 69
Show 20511+4224 BRT2277 230 4.2 70
Show 20444+4027 TDT2510 157 0.9 71
Show 20440+4030 SLN 85 203 9.1 72
Show 20542+4111 ES 1684 277 7.9 72
Show 20534+4208 LDS2464 331 43.8 74
Show 20429+4036 MLB 24 175 5.9 76
Show 20456+4014 TDT2519 347 1.3 76
Show 20436+4024 DAM1256 106 9.6 79
Show 20508+4238 LDS2457 106 5.1 79
Show 20422+4041 MLB 23 41 7.6 80
Show 20417+4202 ES 1570 118 4.7 80
Show 20454+4011 TDT2518 203 0.7 80
Show 20432+4026 COU2421 110 0.3 81
Show 20526+4024 GRV 391 144 59.5 81
Show 20513+4238 A 614 333 1.5 82
Show 20453+4010 COU2293 201 1.1 82

 
 
WDS 20480+4126 : COMPONENTS
 
 
  A
B pa=153.0°
sep=1.98"
 
 
20480+4126 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204757.87+412533.0 Mag 10.54 Spectral class A0 (white)
PmRA 1.00 PmDE -4.0 Tycho2 3174-00591-1
Tycho2
Tycho2 3174-00591-1 Pflag P RAmdeg 311.99111536 DEmdeg 41.42583212
PmRA 1.0 PmDE -4.0 E RAmdeg 22 E DEmdeg 22
E pmRA 1.6 E pmDE 1.4 EpRAm 1989.03 EpDEm 1988.74
Num 5 Q RAmdeg 2.0 Q DEmdeg 1.3 Q pmRA 2.0
Q pmDE 1.3 BTmag 10.766 E BTmag 0.035 VTmag 10.541
E VTmag 0.038 Prox 21 TYC T HIP
CCDM RAdeg 311.99096917 DEdeg 41.42600111 EpRA 1990 1.57
EpDE 1990 1.69 E RAdeg 22.3 E DEdeg 22.4 Posflg D
Corr 0.1
CCDM
Ccdm 20480+4126 RComp Comp A Note1
Note2 Discov num DRAs -2.05 DDEs -26.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 10.6 Sp PmNote *
PmRA 24 PmDE 8 Dm number +40 4317 Cat1 BD
Name2 +41 1967 Cat2 AGK2/3 HD M HD
ADS BDS A14309 M ADS BDS N IDS IDS 20443N4103A
HIC
 
 
20480+4126 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204757.95+412531.2 Mag 11.12 PmRA 1.00
PmDE -4.0 Tycho2 3174-00591-2 Calc delta mag 0.58 Calc coord yes
Tycho2
Tycho2 3174-00591-2 Pflag P RAmdeg 311.99111536 DEmdeg 41.42583212
PmRA 1.0 PmDE -4.0 E RAmdeg 22 E DEmdeg 22
E pmRA 1.6 E pmDE 1.4 EpRAm 1989.03 EpDEm 1988.74
Num 5 Q RAmdeg 2.0 Q DEmdeg 1.3 Q pmRA 2.0
Q pmDE 1.3 BTmag 11.210 E BTmag 0.049 VTmag 11.120
E VTmag 0.067 Prox 21 TYC T HIP
CCDM RAdeg 311.99139333 DEdeg 41.42552528 EpRA 1990 1.56
EpDE 1990 1.70 E RAdeg 34.2 E DEdeg 34.1 Posflg D
Corr 0.1
CCDM
Ccdm 20480+4126 RComp Comp B Note1
Note2 Discov num ES 1681 DRAs DDEs
R dRAs Year 1917 Theta 144 Rho 2.2
Obs 1 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14309 M ADS BDS N IDS IDS 20443N4103B
HIC