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Doubles in session


Current system
18456+6404
ES 1840


Nearby doubles
9' : 18462+6412
HU 937

14' : 18462+6351
STI 861

21' : 18482+6415
SLN 84

26' : 18418+6402
WIS 329

27' : 18426+6420
LDS2420

29' : 18430+6427
UC 3653

37' : 18497+6429
LDS2422

41' : 18509+6425
TOI1749

41' : 18510+6425
UC 3695

42' : 18396+6416
LDS2745

45' : 18393+6348
ES 126AB

51' : 18402+6326
MLR 44

55' : 18381+6341
KPP2683

57' : 18377+6342
HU 933

58' : 18384+6332
STF2377AB

61' : 18413+6311
ES 1839

62' : 18518+6318
UC 3699

62' : 18361+6405
MLB 214

63' : 18439+6303
KPP4117

66' : 18554+6420
MLR 59

69' : 18552+6432
HU 938

71' : 18473+6254
ES 127

73' : 18352+6342
STF2365

74' : 18533+6312
TDT1113

75' : 18530+6501
DAM 126

77' : 18572+6406
KPP4130



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.

18456+6404 ES 1840

 
 
18h 45m 35.59s +64° 04' 02.7" P.A. 216.00 sep 9.1 mag 9.69,11.26 Sp A2
 
 
Coord 2000 18456+6404 Discov num ES 1840 Comp Coord arcsec 2000 18 45 35.59 +64 04 02.7
Date first 1898 Date last 2021 Obs 15
Pa first 222 Pa last 215.6 P.A. Now (θ) 215.6°
Sep first 8.2 Sep last 9.09 Sep. Now (ρ) 9.09"
Mag pri 9.69 Mag sec 11.26 delta mag (ΔM) 1.57 Spectral class A2 (white)
Pri motion ra +004 Sec motion ra +002
Pri motion dec -002 Sec motion dec -002
Notes V (Proper motion indicates physical)
rPM=0.447
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4223-01127-1 Gaia DR2 2253427404428526592
 
 
WDS 18456+6404 ES 1840 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
18456+6404 ES 1840 1999 7 216 9.1 9.69 11.26 A2 D 184535.59+640402.7
18456+6404 ES 1840 2010 8 216 9.1 9.69 11.26 A2 D 184535.59+640402.7
18456+6404 ES 1840 2015 10 216 9.1 9.69 11.26 A2 184535.59+640402.7
18456+6404 ES 1840 2021 15 216 9.1 9.69 11.26 A2 V 184535.59+640402.7

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

 
 
WDS 18456+6404 ES 1840 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18456+6404 ES 1840 : MEASURES
 
 
No records found.

 
 
WDS 18456+6404 : VIRTUAL EYEPIECE
 
 

18456+6404 ES 1840A mag 9.69 Sp A2 18456+6404 ES 1840B sep 7.7 P.A. 197.40 mag 11.26 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 18456+6404 : ALADIN DSS IMAGE @ 18h 45m 35.59s +64° 04' 02.7"
 
 
 
 
WDS 18456+6404 ES 1840 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18456+6404 ES 1840 distance=0' 18462+6412 HU 937 distance=9' 18462+6351 STI 861 distance=14' 18482+6415 SLN 84 distance=21' 18418+6402 WIS 329 distance=26' 18426+6420 LDS2420 distance=27' 18430+6427 UC 3653 distance=29' 18497+6429 LDS2422 distance=37' 18509+6425 TOI1749 distance=41' 18510+6425 UC 3695 distance=41' 18396+6416 LDS2745 distance=42' 18393+6348 ES 126BC distance=44' 18393+6348 ES 126AB distance=45' 18393+6348 ES 126AD distance=45' 18402+6326 MLR 44 distance=51' 18381+6341 KPP2683 distance=55' 18377+6342 HU 933 distance=57' 18384+6332 STF2377AB distance=58' 18384+6332 WAL 150AC distance=58' 18413+6311 ES 1839 distance=61' 18518+6318 UC 3699 distance=62' 18361+6405 MLB 214 distance=62' 18439+6303 KPP4117 distance=63' 18554+6420 MLR 59 distance=66' 18552+6432 HU 938 distance=69' 18473+6254 ES 127 distance=71' 18352+6342 STF2365 distance=73' 18533+6312 TDT1113 distance=74' 18530+6501 DAM 126 distance=75' 18572+6406 KPP4130 distance=77' 18338+6415 MLB 213 distance=79' 18514+6514 STF2423 distance=79' 18417+6520 LDS2748 distance=80' 18532+6507 DAM 127 distance=81' 18567+6440 TDT1141 distance=81' 18538+6509 MLB 215 distance=82' 18524+6256 LDS2753 distance=82' 18448+6241 CFN 16 distance=84' 18335+6432 FAR 67Aa,Ab distance=84' 18335+6432 FAR 67AB distance=84' 18329+6343 STF2357 distance=87' 18494+6528 ES 1912 distance=88' 18593+6347 ES 1844AB distance=94' 18593+6347 ES 1844AC distance=94' 18494+6234 HJ 2846 distance=94' 19000+6403 LDS2425 distance=95' 18540+6522 DAM 680 distance=95' 18558+6253 TDT1131 distance=99' 18305+6412 MLR 62 distance=100' 18411+6226 LDS2746 distance=103' 18517+6222 ES 1841 distance=110' 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 18456+6404 ES 1840 216 9.1
Show 18462+6412 HU 937 333 1.0 9
Show 18462+6351 STI 861 61 12.8 14
Show 18482+6415 SLN 84 341 2.2 21
Show 18418+6402 WIS 329 288 491.7 26
Show 18426+6420 LDS2420 84 9.3 27
Show 18430+6427 UC 3653 335 32.5 29
Show 18497+6429 LDS2422 94 75.9 37
Show 18509+6425 TOI1749 37 23.1 41
Show 18510+6425 UC 3695 217 23.0 41
Show 18396+6416 LDS2745 86 37.5 42
Show 18393+6348 ES 126 BC 24 4.8 44
Show 18393+6348 ES 126 AB 52 72.4 45
Show 18393+6348 ES 126 AD 54 46.0 45
Show 18402+6326 MLR 44 116 0.4 51
Show 18381+6341 KPP2683 134 3.5 55
Show 18377+6342 HU 933 2 0.9 57
Show 18384+6332 STF2377 AB 338 16.9 58
Show 18384+6332 WAL 150 AC 351 94.9 58
Show 18413+6311 ES 1839 17 4.5 61
Show 18518+6318 UC 3699 176 45.4 62
Show 18361+6405 MLB 214 124 2.0 62
Show 18439+6303 KPP4117 24 1.5 63
Show 18554+6420 MLR 59 286 0.8 66
Show 18552+6432 HU 938 325 1.5 69
Show 18473+6254 ES 127 143 5.0 71
Show 18352+6342 STF2365 23 20.0 73
Show 18533+6312 TDT1113 90 0.9 74
Show 18530+6501 DAM 126 236 9.6 75
Show 18572+6406 KPP4130 294 2.2 77
Show 18338+6415 MLB 213 321 4.3 79
Show 18514+6514 STF2423 197 2.2 79
Show 18417+6520 LDS2748 226 50.5 80
Show 18532+6507 DAM 127 55 3.5 81
Show 18567+6440 TDT1141 167 0.4 81
Show 18538+6509 MLB 215 193 3.4 82
Show 18524+6256 LDS2753 292 3.6 82
Show 18448+6241 CFN 16 278 1.3 84
Show 18335+6432 FAR 67 Aa,Ab 222 0.1 84
Show 18335+6432 FAR 67 AB 129 1.8 84
Show 18329+6343 STF2357 271 4.7 87
Show 18494+6528 ES 1912 21 7.6 88
Show 18593+6347 ES 1844 AB 19 2.8 94
Show 18593+6347 ES 1844 AC 119 15.5 94
Show 18494+6234 HJ 2846 239 14.6 94
Show 19000+6403 LDS2425 82 32.9 95
Show 18540+6522 DAM 680 117 15.7 95
Show 18558+6253 TDT1131 239 0.5 99
Show 18305+6412 MLR 62 8 1.0 100
Show 18411+6226 LDS2746 288 17.7 103
Show 18517+6222 ES 1841 105 3.4 110

 
 
WDS 18456+6404 : COMPONENTS
 
 
  A
B pa=197.4°
sep=7.74"
 
 
18456+6404 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184535.59+640402.7 Mag 9.69 Spectral class A2 (white)
PmRA 4.00 PmDE -2.0 Tycho2 4223-01127-1
Tycho2
Tycho2 4223-01127-1 Pflag RAmdeg 281.39827936 DEmdeg 64.06742677
PmRA 3.8 PmDE 0.0 E RAmdeg 14 E DEmdeg 14
E pmRA 1.4 E pmDE 1.4 EpRAm 1990.44 EpDEm 1990.33
Num 8 Q RAmdeg 0.6 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.6 BTmag 10.000 E BTmag 0.025 VTmag 9.693
E VTmag 0.024 Prox 89 TYC T HIP
CCDM RAdeg 281.39825917 DEdeg 64.06742667 EpRA 1990 1.70
EpDE 1990 1.67 E RAdeg 13.8 E DEdeg 14.3 Posflg
Corr -0.1
CCDM
Ccdm 18456+6404 RComp Comp A Note1
Note2 Discov num DRAs -0.44 DDEs 2.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp A2 PmNote *
PmRA 9 PmDE 5 Dm number +63 1460 Cat1 BD
Name2 +64 881 Cat2 AGK2/3 HD M HD
ADS BDS A11684 M ADS BDS N IDS IDS 18450N6357A
HIC
 
 
18456+6404 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184535.24+640355.3 Mag 11.26 PmRA 2.00
PmDE -2.0 Tycho2 4223-01127-2 Calc delta mag 1.57 Calc coord yes
Tycho2
Tycho2 4223-01127-2 Pflag RAmdeg 281.39500483 DEmdeg 64.06540645
PmRA 9.1 PmDE -3.4 E RAmdeg 48 E DEmdeg 50
E pmRA 2.7 E pmDE 2.7 EpRAm 1988.15 EpDEm 1987.78
Num 4 Q RAmdeg 0.2 Q DEmdeg 1.8 Q pmRA 0.3
Q pmDE 1.8 BTmag 11.682 E BTmag 0.075 VTmag 11.260
E VTmag 0.084 Prox 89 TYC T HIP
CCDM RAdeg 281.39495694 DEdeg 64.06541417 EpRA 1990 1.71
EpDE 1990 1.68 E RAdeg 48.7 E DEdeg 50.7 Posflg
Corr -0.1
CCDM
Ccdm 18456+6404 RComp Comp B Note1
Note2 Discov num ES 1840 DRAs DDEs
R dRAs Year 1898 Theta 221 Rho 9.0
Obs 3 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11684 M ADS BDS N IDS IDS 18450N6357B
HIC