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Current system
21224+5218
ES 2708
HD 203764


Nearby doubles
6' : 21227+5214
HU 591

18' : 21241+5227
ES 1006

27' : 21196+5216
HEI 593

27' : 21251+5229
HU 592

28' : 21194+5219
ES 98AB

29' : 21206+5241
MLR 644

32' : 21254+5235
CVR 243

33' : 21233+5249
TOI1361

33' : 21259+5214
CVR 244

37' : 21199+5150
STJ 116

39' : 21182+5217
HEI 592

44' : 21178+5229
SKF 346

46' : 21265+5245
BU 369AB

46' : 21223+5132
CVR 241

47' : 21195+5256
A 1693

47' : 21185+5248
TDT2894

47' : 21200+5259
STF2789AB

51' : 21271+5151
CVR 246

53' : 21197+5303
S 786

60' : 21170+5146
DBR 293

66' : 21238+5322
KPP 810

66' : 21199+5319
A 1695

66' : 21211+5323
ES 139

73' : 21252+5110
CBL 92

76' : 21254+5108
SKF2530

78' : 21299+5256
STF2803AB



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.

21224+5218 ES 2708 (HD 203764)

 
 
21h 22m 25.99s +52° 17' 54.0" P.A. 40.00 sep 29.9 mag 8.68,8.97 Sp A0+A3 dist. 260.42 pc (849.49 l.y.)
 
 
Coord 2000 21224+5218 Discov num ES 2708 Comp Coord arcsec 2000 21 22 25.99 +52 17 54.0
Date first 1878 Date last 2015 Obs 21
Pa first 40 Pa last 39.9 P.A. Now (θ) 39.9°
Sep first 29.0 Sep last 29.86 Sep. Now (ρ) 29.86"
Mag pri 8.68 Mag sec 8.97 delta mag (ΔM) 0.29 Spectral class A0+A3 (white/white)
Pri motion ra +008 Sec motion ra +008
Pri motion dec +007 Sec motion dec +007
Notes N T (See Notes, Parallax indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203764 Constellation Cygnus SAO 33363 HIP 105531
Tycho2 3601-01283-1 Gaia DR2 2172398139113451136 HD 203764 BD BD+51 3050
Distance 260.42 Distance ly 849.49
 
 
WDS 21224+5218 ES 2708 (HD 203764) : NOTES
 
 
discov_num notes refcode
ES 2708 B is BD+51@3051.
 
 
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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
21224+5218 ES 2708 2003 14 40 29.6 8.68 8.97 A0 NZD 212225.99+521754.0
21224+5218 ES 2708 2013 16 40 29.7 8.68 8.97 A0 NZ 212225.99+521754.0
21224+5218 ES 2708 2015 18 40 29.9 8.68 8.97 A0 NZW 212225.99+521754.0

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

 
 
WDS 21224+5218 ES 2708 (HD 203764) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21224+5218 ES 2708 (HD 203764) : MEASURES
 
 
No records found.

 
 
WDS 21224+5218 (HD 203764) : VIRTUAL EYEPIECE
 
 

21224+5218 ES 2708A mag 8.68 Sp A0 21224+5218 ES 2708B sep 25.7 P.A. 27.10 mag 8.97 Sp A3 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 21224+5218 (HD 203764) : ALADIN DSS IMAGE @ 21h 22m 25.99s +52° 17' 54.0"
 
 
 
 
WDS 21224+5218 ES 2708 (HD 203764) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21224+5218 ES 2708 distance=0' 21227+5214 HU 591 distance=6' 21241+5227 ES 1006 distance=18' 21196+5216 HEI 593 distance=27' 21251+5229 HU 592 distance=27' 21194+5219 ES 98CD distance=28' 21194+5219 ES 98AB distance=28' 21194+5219 ES 98AC distance=28' 21194+5219 ES 98BC distance=29' 21206+5241 MLR 644 distance=29' 21254+5235 CVR 243 distance=32' 21233+5249 TOI1361 distance=33' 21259+5214 CVR 244 distance=33' 21199+5150 STJ 116 distance=37' 21182+5217 HEI 592 distance=39' 21178+5229 SKF 346 distance=44' 21265+5245 BU 369AB distance=46' 21265+5245 BU 369AC distance=46' 21265+5245 BU 369AD distance=46' 21223+5132 CVR 241 distance=46' 21195+5256 A 1693 distance=47' 21185+5248 TDT2894 distance=47' 21200+5259 STF2789AB distance=47' 21200+5259 STF2789AC distance=47' 21271+5151 CVR 246 distance=51' 21197+5303 S 786 distance=53' 21170+5146 DBR 293 distance=60' 21238+5322 KPP 810 distance=66' 21199+5319 A 1695 distance=66' 21211+5323 ES 139 distance=66' 21252+5110 CBL 92 distance=73' 21254+5108 SKF2530 distance=76' 21297+5139 KPP 690BC distance=78' 21299+5256 STF2803AB distance=78' 21299+5256 GUI 35AC distance=78' 21280+5317 HDS3055 distance=78' 21211+5337 CVR 240 distance=81' 21315+5237 ARY 88AB distance=85' 21315+5237 ARY 88AC distance=85' 21315+5237 ARY 88AD distance=85' 21152+5117 HJ 1631 distance=91' 21195+5048 ES 1005AB distance=93' 21195+5048 ES 1005BC distance=93' 21323+5245 A 1698BC distance=94' 21323+5245 A 1698BD distance=94' 21323+5245 BU 370AB distance=94' 21295+5111 SKF 57 distance=94' 21178+5344 TDT2891 distance=96' 21203+5354 TDT2910 distance=99' 21190+5039 ES 1004 distance=104' 21246+5033 TDT2947 distance=107' 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 21224+5218 ES 2708 40 29.9
Show 21227+5214 HU 591 130 0.8 6
Show 21241+5227 ES 1006 48 8.2 18
Show 21196+5216 HEI 593 335 1.8 27
Show 21251+5229 HU 592 325 0.8 27
Show 21194+5219 ES 98 CD 259 7.6 28
Show 21194+5219 ES 98 AB 308 25.9 28
Show 21194+5219 ES 98 AC 87 29.8 28
Show 21194+5219 ES 98 BC 107 51.9 29
Show 21206+5241 MLR 644 211 1.6 29
Show 21254+5235 CVR 243 319 113.1 32
Show 21233+5249 TOI1361 142 8.2 33
Show 21259+5214 CVR 244 112 54.4 33
Show 21199+5150 STJ 116 53 1.4 37
Show 21182+5217 HEI 592 70 4.1 39
Show 21178+5229 SKF 346 305 55.9 44
Show 21265+5245 BU 369 AB 31 16.0 46
Show 21265+5245 BU 369 AC 61 49.3 46
Show 21265+5245 BU 369 AD 331 25.8 46
Show 21223+5132 CVR 241 156 75.0 46
Show 21195+5256 A 1693 74 2.8 47
Show 21185+5248 TDT2894 187 2.4 47
Show 21200+5259 STF2789 AB 113 6.9 47
Show 21200+5259 STF2789 AC 171 133.1 47
Show 21271+5151 CVR 246 53 69.8 51
Show 21197+5303 S 786 298 47.9 53
Show 21170+5146 DBR 293 199 5.5 60
Show 21238+5322 KPP 810 76 7.0 66
Show 21199+5319 A 1695 193 0.5 66
Show 21211+5323 ES 139 352 5.7 66
Show 21252+5110 CBL 92 342 9.1 73
Show 21254+5108 SKF2530 101 8.1 76
Show 21297+5139 KPP 690 BC 117 6.2 78
Show 21299+5256 STF2803 AB 285 25.9 78
Show 21299+5256 GUI 35 AC 2 87.6 78
Show 21280+5317 HDS3055 35 0.4 78
Show 21211+5337 CVR 240 21 64.4 81
Show 21315+5237 ARY 88 AB 11 46.3 85
Show 21315+5237 ARY 88 AC 110 88.7 85
Show 21315+5237 ARY 88 AD 56 95.0 85
Show 21152+5117 HJ 1631 16 49.4 91
Show 21195+5048 ES 1005 AB 145 11.5 93
Show 21195+5048 ES 1005 BC 126 2.3 93
Show 21323+5245 A 1698 BC 4.0 94
Show 21323+5245 A 1698 BD 234 8.6 94
Show 21323+5245 BU 370 AB 325 3.4 94
Show 21295+5111 SKF 57 232 4.5 94
Show 21178+5344 TDT2891 201 0.5 96
Show 21203+5354 TDT2910 287 0.7 99
Show 21190+5039 ES 1004 221 7.6 104
Show 21246+5033 TDT2947 262 0.7 107

 
 
WDS 21224+5218 : COMPONENTS
 
 
  A
B pa=27.1°
sep=25.73"
 
 
21224+5218 A
 
 
Componente originario normalizzato AB Name HD 203764 Coord arcsec 2000 212225.99+521754.0 Mag 8.68
Spectral class A0 (white) PmRA 8.00 PmDE 7.0 SAO 33363
HIP 105531 Tycho2 3601-01283-1 HD 203764 BD BD+51 3050
Tycho2
Tycho2 3601-01283-1 Pflag RAmdeg 320.60830260 DEmdeg 52.29832993
PmRA 8.1 PmDE 6.7 E RAmdeg 6 E DEmdeg 7
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.34 EpDEm 1991.14
Num 7 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.7 BTmag 8.760 E BTmag 0.017 VTmag 8.680
E VTmag 0.013 Prox 299 TYC T HIP 105531
CCDM RAdeg 320.60827222 DEdeg 52.29831444 EpRA 1990 1.72
EpDE 1990 1.66 E RAdeg 6.2 E DEdeg 6.7 Posflg
Corr 0.1
SAO
SAO 33363 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0.007 Vmag 8.5 SpType A0
Double code Source 37 CatNum 7037 DM BD+51 3050
DMcomp BDsup HD 203764 M HD 0
GC RA1950rad 5.58847397 DE1950rad 0.90903273 PmRA2000 0.0002
PmDE2000 0.004
Hipparcos
Catalog H HIP 105531 Proxy RAhms 21 22 25.99
DEdms +52 17 53.9 Vmag 8.69 VarFlag R Vmag G
RAdeg 320.608 DEdeg 52.2983 AstroRef Plx 3.19
CCDM 21224+5218 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 203764 BD BD+51 3050
CD CP Dm number +51 3050 VIred 0.06
SpType A0 R SpType Coord arcsec 2000 212225.99+521753.9
Hipparcos 2
HIP 105531 Sn 5 So 0 Nc 1
RArad 5.5956700929 DErad 0.9127777603 Plx 3.84 PmRA 9.86
PmDE 7 E RArad 0.8 E DErad 0.71 E Plx 0.9
E pmRA 0.91 E pmDE 0.79 Hpmag 8.7077 E Hpmag 0.0022
SHp 0.021 VA 0 BV 0.04 E BV 0.015
VI 0.06
CCDM
Ccdm 21224+5218 RComp Comp A Note1
Note2 Discov num DRAs 1.87 DDEs -6.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp A0 PmNote *
PmRA -13 PmDE 2 Dm number +51 3050 Cat1 BD
Name2 +52 1488 Cat2 AGK2/3 HD 203764 M HD
ADS BDS M ADS BDS N IDS IDS 21191N5152A
HIC 105531
 
 
21224+5218 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212227.27+521816.9 Mag 8.97 Spectral class A3 (white)
PmRA 8.00 PmDE 7.0 SAO 33364 HIP 105535
Tycho2 3601-01259-1 HD 235502 BD BD+51 3051 Calc delta mag 0.29
Calc coord yes
Tycho2
Tycho2 3601-01259-1 Pflag RAmdeg 320.61705010 DEmdeg 52.30468430
PmRA 9.7 PmDE 5.9 E RAmdeg 8 E DEmdeg 8
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.02 EpDEm 1990.93
Num 7 Q RAmdeg 0.5 Q DEmdeg 1.0 Q pmRA 0.5
Q pmDE 1.0 BTmag 9.067 E BTmag 0.017 VTmag 8.965
E VTmag 0.015 Prox 299 TYC T HIP 105535
CCDM RAdeg 320.61701389 DEdeg 52.30467083 EpRA 1990 1.74
EpDE 1990 1.61 E RAdeg 7.5 E DEdeg 8.3 Posflg
Corr 0.1
SAO
SAO 33364 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 0.007 Vmag 8.8 SpType A3
Double code Source 37 CatNum 7038 DM BD+51 3051
DMcomp BDsup HD 235502 M HD 0
GC RA1950rad 5.5886264 DE1950rad 0.90914284 PmRA2000 0.0012
PmDE2000 0.004
Hipparcos
Catalog H HIP 105535 Proxy RAhms 21 22 28.08
DEdms +52 18 16.8 Vmag 8.92 VarFlag R Vmag G
RAdeg 320.617 DEdeg 52.3047 AstroRef Plx 2.85
CCDM 21224+5218 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 235502 BD BD+51 3051
CD CP Dm number +51 3051 VIred 0.14
SpType A3 R SpType Coord arcsec 2000 212228.08+521816.8
Hipparcos 2
HIP 105535 Sn 5 So 0 Nc 1
RArad 5.5958221351 DErad 0.9128887192 Plx 3.94 PmRA 9.52
PmDE 7.14 E RArad 0.75 E DErad 0.69 E Plx 0.84
E pmRA 0.87 E pmDE 0.75 Hpmag 8.9747 E Hpmag 0.0022
SHp 0.019 VA 0 BV 0.13 E BV 0.015
VI 0.14
CCDM
Ccdm 21224+5218 RComp Comp B Note1
Note2 Discov num ES DRAs 3.98 DDEs 18.1
R dRAs 10 Year 1878 Theta 040 Rho 29.0
Obs 3 Vmag 9.0 Sp A3 PmNote *
PmRA -8 PmDE 27 Dm number +51 3051 Cat1 BD
Name2 +52 1489 Cat2 AGK2/3 HD 235502 M HD
ADS BDS M ADS BDS N IDS IDS 21191N5152B
HIC 105535