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Current system
21304+3250
ES 2318


Nearby doubles
21' : 21317+3302
GYL 63

24' : 21286+3255
TDT2984

32' : 21290+3224
ES 378AB

47' : 21281+3214
SOZ 26

49' : 21341+3237
GYL 60

52' : 21318+3338
KUI 124

53' : 21262+3249
GRV 467

54' : 21336+3325
TOB 222AB

56' : 21322+3341
ES 2383

56' : 21265+3315
HJ 935AB

57' : 21348+3304
GYL 61

60' : 21324+3156
KPP 835

61' : 21257+3241
GYL 55

62' : 21267+3329
TDT2973

62' : 21318+3349
STF2802

63' : 21322+3349
HEI 882

64' : 21275+3158
TDT2977

67' : 21350+3324
TDT3042

69' : 21291+3357
ES 2263

70' : 21268+3337
ES 2382

70' : 21258+3329
GYL 56

72' : 21348+3204
LSL 1AB

72' : 21282+3355
TDT2982

72' : 21262+3339
TDT2964

74' : 21302+3404
HJ 1652

76' : 21360+3319
HJ 1664



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.

21304+3250 ES 2318

 
 
21h 30m 25.16s +32° 49' 50.3" P.A. 78.00 sep 3.7 mag 10.80,12.30
 
 
Coord 2000 21304+3250 Discov num ES 2318 Comp Coord arcsec 2000 21 30 25.16 +32 49 50.3
Date first 1927 Date last 2015 Obs 4
Pa first 76 Pa last 77.9 P.A. Now (θ) 77.9°
Sep first 4.3 Sep last 3.746 Sep. Now (ρ) 3.746"
Mag pri 10.80 Mag sec 12.30 delta mag (ΔM) 1.5 Spectral class
Pri motion ra -001 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2708-02170-1 Gaia DR2 1854017917178159360
 
 
WDS 21304+3250 ES 2318 : 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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
21304+3250 ES 2318 2004 3 79 3.7 10.80 12.30 D 213025.16+324950.3
21304+3250 ES 2318 2015 4 78 3.7 10.80 12.30 213025.16+324950.3

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

 
 
WDS 21304+3250 ES 2318 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21304+3250 ES 2318 : MEASURES
 
 
No records found.

 
 
WDS 21304+3250 : VIRTUAL EYEPIECE
 
 

21304+3250 ES 2318A mag 10.8 21304+3250 ES 2318B sep 3.2 P.A. 75.70 mag 12.3 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 21304+3250 : ALADIN DSS IMAGE @ 21h 30m 25.16s +32° 49' 50.3"
 
 
 
 
WDS 21304+3250 ES 2318 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21304+3250 ES 2318 distance=0' 21317+3302 GYL 63 distance=21' 21286+3255 TDT2984 distance=24' 21290+3224 ES 378AB distance=32' 21290+3224 WAL 139AC distance=32' 21281+3214 SOZ 26 distance=47' 21341+3237 GYL 60 distance=49' 21318+3338 KUI 124 distance=52' 21262+3249 GRV 467 distance=53' 21336+3325 TOB 222AB distance=54' 21336+3325 TOB 222AC distance=54' 21336+3325 TOB 222AD distance=54' 21336+3325 GYL 59BD distance=54' 21322+3341 ES 2383 distance=56' 21265+3315 HJ 935AB distance=56' 21265+3315 HJ 935BC distance=56' 21348+3304 GYL 61 distance=57' 21324+3156 KPP 835 distance=60' 21257+3241 GYL 55 distance=61' 21267+3329 TDT2973 distance=62' 21318+3349 STF2802 distance=62' 21322+3349 HEI 882 distance=63' 21275+3158 TDT2977 distance=64' 21350+3324 TDT3042 distance=67' 21291+3357 ES 2263 distance=69' 21268+3337 ES 2382 distance=70' 21258+3329 GYL 56 distance=70' 21348+3204 LSL 1AB distance=72' 21348+3204 LSL 1AC distance=72' 21348+3204 LSL 1AD distance=72' 21348+3204 LSL 1AE distance=72' 21282+3355 TDT2982 distance=72' 21262+3339 TDT2964 distance=72' 21348+3204 LSL 1BF distance=72' 21348+3204 LSL 1CG distance=73' 21302+3404 HJ 1652 distance=74' 21360+3319 HJ 1664 distance=76' 21326+3401 KPP1585 distance=76' 21271+3402 ES 2262 distance=84' 21321+3412 HO 603BC distance=85' 21321+3412 HO 603AB distance=85' 21368+3217 COU1184 distance=87' 21319+3121 J 1236 distance=92' 21267+3413 ES 2261 distance=97' 21334+3419 TDT3029 distance=97' 21360+3137 HO 163 distance=102' 21307+3107 J 2351 distance=102' 21225+3311 KPP3369 distance=103' 21378+3337 KPP3423 distance=105' 21252+3129 A 1220 distance=106' 21230+3202 HO 157 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 21304+3250 ES 2318 78 3.7
Show 21317+3302 GYL 63 306 15.7 21
Show 21286+3255 TDT2984 38 0.5 24
Show 21290+3224 ES 378 AB 203 9.5 32
Show 21290+3224 WAL 139 AC 251 41.6 32
Show 21281+3214 SOZ 26 11 12.3 47
Show 21341+3237 GYL 60 61 50.1 49
Show 21318+3338 KUI 124 143 4.2 52
Show 21262+3249 GRV 467 338 60.2 53
Show 21336+3325 TOB 222 AB 119 20.8 54
Show 21336+3325 TOB 222 AC 335 22.1 54
Show 21336+3325 TOB 222 AD 68 26.4 54
Show 21336+3325 GYL 59 BD 17 21.0 54
Show 21322+3341 ES 2383 44 5.2 56
Show 21265+3315 HJ 935 AB 16 12.9 56
Show 21265+3315 HJ 935 BC 52 1.7 56
Show 21348+3304 GYL 61 188 47.6 57
Show 21324+3156 KPP 835 347 7.1 60
Show 21257+3241 GYL 55 163 5.8 61
Show 21267+3329 TDT2973 330 0.5 62
Show 21318+3349 STF2802 9 3.9 62
Show 21322+3349 HEI 882 182 2.0 63
Show 21275+3158 TDT2977 120 0.5 64
Show 21350+3324 TDT3042 53 1.0 67
Show 21291+3357 ES 2263 28 2.8 69
Show 21268+3337 ES 2382 257 7.7 70
Show 21258+3329 GYL 56 3 16.3 70
Show 21348+3204 LSL 1 AB 82 82.1 72
Show 21348+3204 LSL 1 AC 127 106.1 72
Show 21348+3204 LSL 1 AD 134 21.2 72
Show 21348+3204 LSL 1 AE 331 10.5 72
Show 21282+3355 TDT2982 358 1.8 72
Show 21262+3339 TDT2964 258 0.4 72
Show 21348+3204 LSL 1 BF 210 18.4 72
Show 21348+3204 LSL 1 CG 199 11.5 73
Show 21302+3404 HJ 1652 26 15.4 74
Show 21360+3319 HJ 1664 83 9.4 76
Show 21326+3401 KPP1585 342 12.0 76
Show 21271+3402 ES 2262 74 1.3 84
Show 21321+3412 HO 603 BC 276 3.6 85
Show 21321+3412 HO 603 AB 251 80.6 85
Show 21368+3217 COU1184 158 0.2 87
Show 21319+3121 J 1236 283 2.4 92
Show 21267+3413 ES 2261 155 4.1 97
Show 21334+3419 TDT3029 133 2.3 97
Show 21360+3137 HO 163 19 9.0 102
Show 21307+3107 J 2351 347 4.7 102
Show 21225+3311 KPP3369 47 1.8 103
Show 21378+3337 KPP3423 18 9.9 105
Show 21252+3129 A 1220 160 1.6 106
Show 21230+3202 HO 157 26 3.6 106

 
 
WDS 21304+3250 : COMPONENTS
 
 
  A
B pa=75.7°
sep=3.18"
 
 
21304+3250 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 213025.16+324950.3 Mag 10.8 PmRA -1.00
PmDE -6.0 Tycho2 2708-02170-1 DM BD+32 4178
Tycho2
Tycho2 2708-02170-1 Pflag RAmdeg 322.60486763 DEmdeg 32.83065834
PmRA -0.9 PmDE -5.9 E RAmdeg 29 E DEmdeg 31
E pmRA 1.4 E pmDE 1.4 EpRAm 1981.88 EpDEm 1983.28
Num 8 Q RAmdeg 2.9 Q DEmdeg 0.9 Q pmRA 2.9
Q pmDE 0.9 BTmag 11.491 E BTmag 0.062 VTmag 10.950
E VTmag 0.060 Prox 999 TYC T HIP
CCDM RAdeg 322.60482139 DEdeg 32.83067333 EpRA 1990 1.56
EpDE 1990 1.65 E RAdeg 39.7 E DEdeg 36.4 Posflg
Corr 0.0
 
 
21304+3250 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213025.40+324951.1 Mag 12.3 Calc delta mag 1.5
Calc coord yes