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Doubles in session


Current system
21072+4744
ES 817 AB
HD 201320


Nearby doubles
9' : 21066+4739
ES 32

12' : 21063+4751
BUP9010AB

16' : 21057+4748
BU 158AB

21' : 21092+4737
TDT2786

22' : 21055+4758
ES 816

26' : 21077+4718
A 759

28' : 21100+4745
A 761

33' : 21090+4716
ES 512AB

34' : 21105+4742
BU 159AB

35' : 21089+4815
ARG 42AB

37' : 21068+4708
ES 1169

37' : 21043+4806
ARN 51

39' : 21100+4811
RAO 448

40' : 21065+4823
BU 836AB

41' : 21070+4704
BRT1142

45' : 21097+4820
COU2545

46' : 21105+4713
TDT2803

54' : 21102+4828
KPP4226

54' : 21103+4828
TOI1343

57' : 21019+4802
COU2650

59' : 21016+4730
HDS2997

60' : 21099+4651
SMA 129

60' : 21109+4658
GIC 166AB

61' : 21088+4646
SMA 127

63' : 21011+4738
RAO 446

64' : 21037+4652
YSC 14



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.

21072+4744 ES 817 AB (HD 201320)

 
 
21h 07m 13.36s +47° 44' 03.5" P.A. 350.00 sep 10.0 mag 7.33,11.60 Sp A2V dist. 408.16 pc (1331.42 l.y.)
 
 
Coord 2000 21072+4744 Discov num ES  817 Comp AB Coord arcsec 2000 21 07 13.36 +47 44 03.5
Date first 1899 Date last 2015 Obs 8
Pa first 356 Pa last 349.9 P.A. Now (θ) 349.9°
Sep first 11.9 Sep last 10.02 Sep. Now (ρ) 10.02"
Mag pri 7.33 Mag sec 11.60 delta mag (ΔM) 4.27 Spectral class A2V (white)
Pri motion ra +007 Sec motion ra -007
Pri motion dec +009 Sec motion dec -008
Notes
rPM=1.932
This double is not physical.
 
 
21072+4744 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 201320 50471 21 07 13 +47 44 04 ES 817 AB 2015 8 350 10.0 7.33 11.60 4.27 <===
Show 50471 21 07 13 +47 44 04 ES 817 AC 2015 6 347 22.2 7.33 15.70 8.37
Show 50471 21 07 13 +47 44 04 ES 817 AD 2015 6 85 23.7 7.33 14.20 6.87
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 201320 Constellation Cygnus SAO 50471 HIP 104245
Tycho2 3592-01058-1 Gaia DR2 2165221966011996288 HD 201320 GC 29535
ADS 14665 BD BD+47 3297 Distance 408.16 Distance ly 1331.42
 
 
WDS 21072+4744 ES 817 AB (HD 201320) : 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
21072+4744 ES 817 AB 1999 4 351 10.1 7.33 11.60 A2V D 210713.36+474403.5
21072+4744 ES 817 AB 2015 5 350 10.0 7.33 11.60 A2V 210713.36+474403.5

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

 
 
WDS 21072+4744 ES 817 AB (HD 201320) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21072+4744 ES 817 AB (HD 201320) : MEASURES
 
 
No records found.

 
 
WDS 21072+4744 (HD 201320) : VIRTUAL EYEPIECE
 
 

21072+4744 ES 817A mag 7.33 Sp A2V 21072+4744 ES 817B sep 9.9 P.A. 353.20 mag 11.6 21072+4744 ES 817C sep 21.9 P.A. 351.20 mag 15.7 21072+4744 ES 817D sep 16.0 P.A. 81.90 mag 14.2 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 21072+4744 (HD 201320) : ALADIN DSS IMAGE @ 21h 07m 13.36s +47° 44' 03.5"
 
 
 
 
WDS 21072+4744 ES 817 AB (HD 201320) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21072+4744 ES 817AB distance=0' 21066+4739 ES 32 distance=9' 21063+4751 BUP9010AB distance=12' 21063+4751 BUP9010AC distance=12' 21063+4751 BUP9010AD distance=12' 21057+4748 BU 158AB distance=16' 21092+4737 TDT2786 distance=21' 21055+4758 ES 816 distance=22' 21077+4718 A 759 distance=26' 21100+4745 A 761 distance=28' 21090+4716 ES 512AB distance=33' 21105+4742 BU 159AB distance=34' 21105+4742 STTA215AC distance=34' 21105+4742 BU 159AD distance=34' 21105+4742 LV 23AE distance=34' 21089+4815 ARG 42AB distance=35' 21089+4815 ARG 42AC distance=35' 21089+4815 ARG 42BC distance=36' 21068+4708 ES 1169 distance=37' 21043+4806 ARN 51 distance=37' 21100+4811 RAO 448 distance=39' 21065+4823 BU 836CD distance=40' 21065+4823 BU 836AB distance=40' 21065+4823 BU 836AB,C distance=40' 21070+4704 BRT1142 distance=41' 21097+4820 COU2545 distance=45' 21105+4713 TDT2803 distance=46' 21102+4828 KPP4226 distance=54' 21103+4828 TOI1343 distance=54' 21019+4802 COU2650 distance=57' 21016+4730 HDS2997 distance=59' 21099+4651 SMA 129 distance=60' 21109+4658 GIC 166AB distance=60' 21109+4658 JNN 290BC distance=61' 21109+4658 JNN 290BD distance=61' 21088+4646 SMA 127 distance=61' 21011+4738 RAO 446 distance=63' 21037+4652 YSC 14 distance=64' 21009+4730 BU 1290BD distance=66' 21009+4730 BU 1290AB distance=66' 21009+4730 BU 1290AC distance=66' 21129+4820 HJ 1625 distance=67' 21102+4645 SKF2396 distance=67' 21077+4851 ES 818AB distance=68' 21077+4851 ES 818BC distance=69' 21100+4640 SMA 130 distance=71' 21119+4838 HJ 1624 distance=72' 21091+4635 TDT2785 distance=73' 21067+4631 SMA 125AB distance=74' 21067+4631 SMA 125AC distance=74' 20598+4743 ES 815 distance=75' 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 21072+4744 ES 817 AB 350 10.0
Show 21072+4744 ES 817 AC 347 22.2
Show 21072+4744 ES 817 AD 85 23.7
Show 21066+4739 ES 32 159 15.7 9
Show 21063+4751 BUP9010 AB 61 28.5 12
Show 21063+4751 BUP9010 AC 315 50.0 12
Show 21063+4751 BUP9010 AD 322 53.9 12
Show 21057+4748 BU 158 AB 304 11.0 16
Show 21092+4737 TDT2786 240 0.7 21
Show 21055+4758 ES 816 36 2.6 22
Show 21077+4718 A 759 24 4.1 26
Show 21100+4745 A 761 56 0.4 28
Show 21090+4716 ES 512 AB 1 13.4 33
Show 21105+4742 BU 159 AB 313 1.2 34
Show 21105+4742 STTA215 AC 189 136.7 34
Show 21105+4742 BU 159 AD 145 14.8 34
Show 21105+4742 LV 23 AE 338 46.8 34
Show 21089+4815 ARG 42 AB 60 21.0 35
Show 21089+4815 ARG 42 AC 333 41.8 35
Show 21089+4815 ARG 42 BC 306 45.9 36
Show 21068+4708 ES 1169 89 4.8 37
Show 21043+4806 ARN 51 340 47.3 37
Show 21100+4811 RAO 448 3 3.5 39
Show 21065+4823 BU 836 CD 64 1.4 40
Show 21065+4823 BU 836 AB 177 0.8 40
Show 21065+4823 BU 836 AB,C 218 27.5 40
Show 21070+4704 BRT1142 220 4.6 41
Show 21097+4820 COU2545 74 0.7 45
Show 21105+4713 TDT2803 183 0.6 46
Show 21102+4828 KPP4226 308 1.9 54
Show 21103+4828 TOI1343 334 0.5 54
Show 21019+4802 COU2650 256 2.0 57
Show 21016+4730 HDS2997 232 1.9 59
Show 21099+4651 SMA 129 264 14.1 60
Show 21109+4658 GIC 166 AB 150 29.3 60
Show 21109+4658 JNN 290 BC 36 2.4 61
Show 21109+4658 JNN 290 BD 189 3.4 61
Show 21088+4646 SMA 127 130 17.3 61
Show 21011+4738 RAO 446 338 1.7 63
Show 21037+4652 YSC 14 182 0.1 64
Show 21009+4730 BU 1290 BD 22 2.5 66
Show 21009+4730 BU 1290 AB 35 9.3 66
Show 21009+4730 BU 1290 AC 266 3.5 66
Show 21129+4820 HJ 1625 71 11.8 67
Show 21102+4645 SKF2396 53 13.3 67
Show 21077+4851 ES 818 AB 39 48.6 68
Show 21077+4851 ES 818 BC 137 2.2 69
Show 21100+4640 SMA 130 147 8.7 71
Show 21119+4838 HJ 1624 190 6.2 72
Show 21091+4635 TDT2785 68 2.6 73
Show 21067+4631 SMA 125 AB 87 22.2 74

 
 
WDS 21072+4744 : COMPONENTS
 
 
  A B C
B pa=353.2°
sep=9.94"
 
C pa=351.2°
sep=21.94"
pa=349.7°
sep=12.01"
 
D pa=81.9°
sep=16.03"
pa=114.0°
sep=18.67"
pa=135.3°
sep=27.31"
 
 
21072+4744 A
 
 
Name HD 201320 Coord arcsec 2000 210713.36+474403.5 Mag 7.33 Spectral class A2V (white)
PmRA 7.00 PmDE 9.0 SAO 50471 HIP 104245
Tycho2 3592-01058-1 HD 201320 GC 29535 ADS 14665
BD BD+47 3297
Tycho2
Tycho2 3592-01058-1 Pflag RAmdeg 316.80570552 DEmdeg 47.73432332
PmRA 7.2 PmDE 11.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.52 EpDEm 1991.67
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.5 Q pmRA 1.1
Q pmDE 1.4 BTmag 7.365 E BTmag 0.015 VTmag 7.325
E VTmag 0.010 Prox 999 TYC T HIP 104245
CCDM RAdeg 316.80568083 DEdeg 47.73429806 EpRA 1990 1.72
EpDE 1990 1.81 E RAdeg 4.2 E DEdeg 4.3 Posflg
Corr 0.1
SAO
SAO 50471 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 0.012 Vmag 7.1 SpType A0
Double code Source 70 CatNum 29535 DM BD+47 3297
DMcomp BDsup HD 201320 M HD 0
GC 29535 RA1950rad 5.52177025 DE1950rad 0.82958956 PmRA2000 -0.0007
PmDE2000 0.009
Hipparcos
Catalog H HIP 104245 Proxy RAhms 21 07 13.36
DEdms +47 44 03.5 Vmag 7.33 VarFlag R Vmag G
RAdeg 316.806 DEdeg 47.7343 AstroRef Plx 3.03
CCDM 21072+4744 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 201320 BD BD+47 3297
CD CP Dm number +47 3297 VIred 0.06
SpType A0V R SpType Coord arcsec 2000 210713.36+474403.5
Hipparcos 2
HIP 104245 Sn 5 So 0 Nc 1
RArad 5.529302163 DErad 0.8331205992 Plx 2.45 PmRA 7.26
PmDE 8.87 E RArad 0.45 E DErad 0.45 E Plx 0.58
E pmRA 0.6 E pmDE 0.47 Hpmag 7.3526 E Hpmag 0.0009
SHp 0.009 VA 0 BV 0.047 E BV 0.004
VI 0.06
CCDM
Ccdm 21072+4744 RComp Comp A Note1
Note2 Discov num DRAs 1.33 DDEs 3.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.1 Sp A0 PmNote *
PmRA -3 PmDE 19 Dm number +47 3297 Cat1 BD
Name2 +47 1703 Cat2 AGK2/3 HD 201320 M HD
ADS BDS A14665 M ADS BDS N IDS IDS 21038N4720A
HIC 104245
 
 
21072+4744 B
 
 
Coord arcsec 2000 210713.24+474413.4 Mag 11.6 PmRA -7.00 PmDE -8.0
Calc delta mag 4.27 Calc coord yes
CCDM
Ccdm 21072+4744 RComp Comp B Note1
Note2 Discov num ES 817 DRAs DDEs
R dRAs Year 1902 Theta 352 Rho 11.4
Obs 1 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14665 M ADS BDS N IDS IDS 21038N4720B
HIC 104243
 
 
21072+4744 C
 
 
Coord arcsec 2000 210713.03+474425.2 Mag 15.7 Calc delta mag 8.37 Calc coord yes
 
 
21072+4744 D
 
 
Coord arcsec 2000 210714.93+474405.8 Mag 14.2 PmRA 0.00 PmDE 2.0
Calc delta mag 6.87 Calc coord yes