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Current system
21316+4420
ES 1337 AC


Nearby doubles
18' : 21322+4438
ES 1338

18' : 21307+4435
ES 1336

21' : 21328+4437
ES 1339AB

28' : 21336+4438
ES 1340AB

33' : 21313+4455
POP 137

34' : 21341+4441
TDT3035

44' : 21291+4455
BU 448

44' : 21282+4445
KPP 7

46' : 21292+4500
ES 99

48' : 21317+4508
AG 272

53' : 21331+4512
COU2308

57' : 21293+4512
ES 100AB

58' : 21318+4518
POP 150

61' : 21371+4409
POP 139

65' : 21336+4522
UC 263AB

65' : 21264+4349
HO 159

66' : 21262+4351
TDT2963

67' : 21368+4332
HJ 1666

68' : 21346+4322
AG 418

68' : 21278+4515
ES 1335

70' : 21353+4519
TDT3046

78' : 21296+4307
COU2232

79' : 21333+4306
ES 1455

79' : 21301+4539
POP 149

81' : 21391+4421
HJ 1673

81' : 21246+4355
BRT1149



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.

21316+4420 ES 1337 AC

 
 
21h 31m 37.45s +44° 21' 32.5" P.A. 152.00 sep 22.9 mag 9.03,11.90
 
 
Coord 2000 21316+4420 Discov num ES 1337 Comp AC Coord arcsec 2000 21 31 37.45 +44 21 32.5
Date first 1914 Date last 2018 Obs 9
Pa first 148 Pa last 152.1 P.A. Now (θ) 152.1°
Sep first 22.5 Sep last 22.856 Sep. Now (ρ) 22.856"
Mag pri 9.03 Mag sec 11.90 delta mag (ΔM) 2.87 Spectral class
Pri motion ra +019 Sec motion ra +008
Pri motion dec +003 Sec motion dec -010
Notes
rPM=0.885
This double is not physical.
 
 
21316+4420 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 31 37 +44 21 32 ES 1337 AB 2018 9 264 6.2 9.03 10.00 0.97
Show 21 31 37 +44 21 32 ES 1337 AC 2018 9 152 22.9 9.03 11.90 2.87 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3195-01533-1 Gaia DR2 1970952108358828544 DM BD+43 3955
 
 
WDS 21316+4420 ES 1337 AC : 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
21316+4420 ES 1337 AC 1991 2 150 24.6 9.03 11.90 213137.45+442132.5
21316+4420 ES 1337 AC 1998 3 151 22.9 9.03 11.90 213137.45+442132.5
21316+4420 ES 1337 AC 2002 4 151 22.7 9.03 11.90 213137.45+442132.5
21316+4420 ES 1337 AC 2015 5 152 22.8 9.03 11.90 213137.45+442132.5
21316+4420 ES 1337 AC 2018 6 153 22.9 9.03 11.90 213137.45+442132.5

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

 
 
WDS 21316+4420 ES 1337 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21316+4420 ES 1337 AC : MEASURES
 
 
No records found.

 
 
WDS 21316+4420 : VIRTUAL EYEPIECE
 
 

21316+4420 ES 1337A mag 9.03 21316+4420 ES 1337B sep 4.5 P.A. 261.80 mag 10 21316+4420 ES 1337C sep 21.6 P.A. 159.30 mag 11.9 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 21316+4420 : ALADIN DSS IMAGE @ 21h 31m 37.45s +44° 21' 32.5"
 
 
 
 
WDS 21316+4420 ES 1337 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21316+4420 ES 1337AC distance=0' 21322+4438 ES 1338 distance=18' 21325+4436 POP 136BC distance=18' 21307+4435 ES 1336 distance=18' 21325+4436 POP 136A,BC distance=18' 21328+4437 ES 1339AB distance=21' 21328+4437 ES 1339AC distance=21' 21336+4438 ES 1340AB distance=28' 21336+4438 ES 1340AC distance=28' 21313+4455 POP 137 distance=33' 21341+4441 TDT3035 distance=34' 21291+4455 BU 448 distance=44' 21282+4445 KPP 7 distance=44' 21292+4500 ES 99 distance=46' 21317+4508 AG 272 distance=48' 21331+4512 COU2308 distance=53' 21293+4512 ES 100AB distance=57' 21293+4512 ES 100AC distance=57' 21318+4518 POP 150 distance=58' 21371+4409 POP 139 distance=61' 21336+4522 UC 263AB distance=65' 21264+4349 HO 159 distance=65' 21262+4351 TDT2963 distance=66' 21368+4332 HJ 1666 distance=67' 21346+4322 AG 418 distance=68' 21278+4515 ES 1335 distance=68' 21353+4519 TDT3046 distance=70' 21296+4307 COU2232 distance=78' 21333+4306 ES 1455 distance=79' 21301+4539 POP 149 distance=79' 21391+4421 HJ 1673 distance=81' 21246+4355 BRT1149 distance=81' 21392+4411 BU 1331 distance=83' 21370+4520 COU2309 distance=83' 21273+4315 HJ 1646 distance=85' 21237+4420 KPP3422 distance=85' 21249+4336 BRT1150 distance=86' 21280+4305 HO 160 distance=87' 21372+4527 COU2310 distance=89' 21360+4307 TDT3049 distance=89' 21355+4300 ES 1456 distance=94' 21365+4304 COU2233 distance=95' 21400+4348 TDT3097 distance=97' 21227+4408 COU2303 distance=98' 21385+4317 DA 15 distance=98' 21225+4409 HJ 1640 distance=98' 21362+4253 HO 463 distance=102' 21345+4559 HJ 1660 distance=102' 21220+4408 HJ 1639 distance=104' 21265+4254 TDT2967 distance=104' 21223+4353 TDT2930 distance=106' 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 21316+4420 ES 1337 AB 264 6.2
Show 21316+4420 ES 1337 AC 152 22.9
Show 21322+4438 ES 1338 42 6.5 18
Show 21325+4436 POP 136 BC 89 2.0 18
Show 21307+4435 ES 1336 346 4.8 18
Show 21325+4436 POP 136 A,BC 249 23.6 18
Show 21328+4437 ES 1339 AB 135 5.1 21
Show 21328+4437 ES 1339 AC 247 23.1 21
Show 21336+4438 ES 1340 AB 222 7.6 28
Show 21336+4438 ES 1340 AC 165 5.9 28
Show 21313+4455 POP 137 103 1.6 33
Show 21341+4441 TDT3035 195 2.8 34
Show 21291+4455 BU 448 -1 2.0 44
Show 21282+4445 KPP 7 269 4.0 44
Show 21292+4500 ES 99 203 4.5 46
Show 21317+4508 AG 272 184 4.2 48
Show 21331+4512 COU2308 177 0.1 53
Show 21293+4512 ES 100 AB 157 4.4 57
Show 21293+4512 ES 100 AC 333 29.9 57
Show 21318+4518 POP 150 219 4.4 58
Show 21371+4409 POP 139 183 1.0 61
Show 21336+4522 UC 263 AB 64 66.2 65
Show 21264+4349 HO 159 183 5.5 65
Show 21262+4351 TDT2963 267 0.5 66
Show 21368+4332 HJ 1666 238 8.1 67
Show 21346+4322 AG 418 113 13.9 68
Show 21278+4515 ES 1335 287 8.5 68
Show 21353+4519 TDT3046 134 0.5 70
Show 21296+4307 COU2232 17 1.8 78
Show 21333+4306 ES 1455 293 6.6 79
Show 21301+4539 POP 149 296 3.9 79
Show 21391+4421 HJ 1673 80 5.4 81
Show 21246+4355 BRT1149 136 3.2 81
Show 21392+4411 BU 1331 340 0.7 83
Show 21370+4520 COU2309 53 0.7 83
Show 21273+4315 HJ 1646 115 23.1 85
Show 21237+4420 KPP3422 231 17.2 85
Show 21249+4336 BRT1150 60 2.9 86
Show 21280+4305 HO 160 182 2.0 87
Show 21372+4527 COU2310 10 0.5 89
Show 21360+4307 TDT3049 355 0.9 89
Show 21355+4300 ES 1456 137 3.5 94
Show 21365+4304 COU2233 121 0.1 95
Show 21400+4348 TDT3097 253 0.4 97
Show 21227+4408 COU2303 269 1.9 98
Show 21385+4317 DA 15 72 1.6 98
Show 21225+4409 HJ 1640 35 7.4 98
Show 21362+4253 HO 463 180 0.5 102
Show 21345+4559 HJ 1660 261 6.5 102
Show 21220+4408 HJ 1639 102 10.7 104
Show 21265+4254 TDT2967 4 1.4 104

 
 
WDS 21316+4420 : COMPONENTS
 
 
  A B
B pa=261.8°
sep=4.46"
 
C pa=159.3°
sep=21.60"
pa=148.4°
sep=22.98"
 
 
21316+4420 A
 
 
Coord arcsec 2000 213137.45+442132.5 Mag 9.03 PmRA 19.00 PmDE 3.0
Tycho2 3195-01533-1 ADS 15059 DM BD+43 3955
Tycho2
Tycho2 3195-01533-1 Pflag RAmdeg 322.90605345 DEmdeg 44.35904207
PmRA 18.7 PmDE 2.2 E RAmdeg 8 E DEmdeg 8
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.25 EpDEm 1991.28
Num 3 Q RAmdeg 1.5 Q DEmdeg 0.9 Q pmRA 1.6
Q pmDE 0.9 BTmag 9.223 E BTmag 0.018 VTmag 9.025
E VTmag 0.015 Prox 246 TYC T HIP
CCDM RAdeg 322.90599306 DEdeg 44.35903694 EpRA 1990 1.63
EpDE 1990 1.63 E RAdeg 8.3 E DEdeg 8.4 Posflg
Corr 0.2
 
 
21316+4420 B
 
 
Coord arcsec 2000 213137.04+442131.9 Mag 10 Calc delta mag 0.97 Calc coord yes
 
 
21316+4420 C
 
 
Coord arcsec 2000 213138.16+442112.3 Mag 11.9 PmRA 8.00 PmDE -10.0
Calc delta mag 2.87 Calc coord yes