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Current system
21101+4359
HJ 1618 BC


Nearby doubles
2' : 21103+4359
STF2773AB

18' : 21112+4346
ES 1454AB

20' : 21108+4417
A 882

23' : 21099+4422
STF2772

26' : 21118+4417
TDT2812

30' : 21120+4419
TDT2816

34' : 21100+4326
ES 1453

38' : 21079+4430
LDS2490

42' : 21139+4400
COU2299

49' : 21071+4322
ES 1452

49' : 21086+4312
GRV 423

50' : 21058+4341
BU 679

51' : 21136+4433
ES 1333

52' : 21073+4440
A 881

57' : 21145+4329
J 610

57' : 21069+4314
TDT2759

57' : 21139+4438
TDT2839

59' : 21105+4300
VKI 39

59' : 21152+4339
LDS2501

61' : 21053+4328
LDS2486

61' : 21062+4315
DAM1460

61' : 21064+4314
LDS2488

62' : 21099+4257
LDS2492

63' : 21118+4259
STJ 91

64' : 21137+4453
LDS2498

64' : 21071+4459
LDS2489



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.

21101+4359 HJ 1618 BC

 
 
21h 10m 04.99s +43° 59' 01.8" P.A. 132.00 sep 2.9 mag 11.20,12.20
 
 
Coord 2000 21101+4359 Discov num HJ 1618 Comp BC Coord arcsec 2000 21 10 04.99 +43 59 01.8
Date first 1902 Date last 2015 Obs 6
Pa first 133 Pa last 132.4 P.A. Now (θ) 132.4°
Sep first 2.9 Sep last 2.865 Sep. Now (ρ) 2.865"
Mag pri 11.20 Mag sec 12.20 delta mag (ΔM) 1 Spectral class
Pri motion ra -014 Sec motion ra
Pri motion dec +004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21101+4359 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 201734 50525 21 10 05 +43 59 23 HJ 1618 AB 2015 9 174 21.7 8.27 11.20 2.93
Show 21 10 05 +43 59 02 HJ 1618 BC 2015 6 132 2.9 11.20 12.20 1.00 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1970259523415834368
 
 
WDS 21101+4359 HJ 1618 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21101+4359 HJ 1618 BC 1998 4 133 3.1 11.20 12.20 D 211004.99+435901.8
21101+4359 HJ 1618 BC 2012 5 133 3.1 11.20 12.20 D 211004.99+435901.8
21101+4359 HJ 1618 BC 2015 6 132 2.9 11.20 12.20 211004.99+435901.8

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

 
 
WDS 21101+4359 HJ 1618 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21101+4359 HJ 1618 BC : MEASURES
 
 
No records found.

 
 
WDS 21101+4359 : VIRTUAL EYEPIECE
 
 

21101+4359 HJ 1618A mag 8.27 Sp A0 21101+4359 HJ 1618B sep 21.6 P.A. 173.40 mag 11.2 21101+4359 HJ 1618C sep 23.8 P.A. 170.30 mag 12.2 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 21101+4359 : ALADIN DSS IMAGE @ 21h 10m 04.99s +43° 59' 01.8"
 
 
 
 
WDS 21101+4359 HJ 1618 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21101+4359 HJ 1618BC distance=0' 21101+4359 HJ 1618AB distance=1' 21103+4359 STF2773AB distance=2' 21103+4359 STF2773AC distance=2' 21103+4359 STF2773AD distance=2' 21103+4359 STF2773AE distance=2' 21103+4359 STF2773EF distance=3' 21112+4346 ES 1454AB distance=18' 21112+4346 ES 1454BC distance=19' 21108+4417 A 882 distance=20' 21099+4422 STF2772 distance=23' 21118+4417 TDT2812 distance=26' 21120+4419 TDT2816 distance=30' 21100+4326 ES 1453 distance=34' 21079+4430 LDS2490 distance=38' 21139+4400 COU2299 distance=42' 21071+4322 ES 1452 distance=49' 21086+4312 GRV 423 distance=49' 21058+4341 BU 679 distance=50' 21136+4433 ES 1333 distance=51' 21073+4440 A 881 distance=52' 21145+4329 J 610 distance=57' 21069+4314 TDT2759 distance=57' 21139+4438 TDT2839 distance=57' 21105+4300 VKI 39 distance=59' 21152+4339 LDS2501 distance=59' 21053+4328 LDS2486 distance=61' 21062+4315 DAM1460 distance=61' 21064+4314 LDS2488 distance=61' 21099+4257 LDS2492 distance=62' 21118+4259 STJ 91 distance=63' 21137+4453 LDS2498 distance=64' 21071+4459 LDS2489 distance=64' 21061+4448 ROE 45AB distance=65' 21061+4448 ROE 45AD distance=65' 21080+4500 TDT2774 distance=65' 21061+4448 ROE 45DE distance=65' 21154+4325 LDS2502 distance=66' 21061+4448 ROE 45BC distance=67' 21061+4448 ROE 45BF distance=67' 21104+4253 BRT1144AB distance=67' 21104+4253 BRT1144AC distance=67' 21104+4253 BRT1144BC distance=67' 21061+4448 TDT2745Ca,Cb distance=67' 21061+4448 ROE 45CD distance=67' 21051+4444 SMA 124 distance=70' 21080+4504 SMA 126 distance=70' 21158+4326 TDT2867 distance=71' 21108+4249 VKI 40 distance=71' 21166+4357 BRT1147 distance=71' 21069+4256 ES 1580 distance=72' 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 21101+4359 HJ 1618 BC 132 2.9
Show 21101+4359 HJ 1618 AB 174 21.7 1
Show 21103+4359 STF2773 AB 112 3.3 2
Show 21103+4359 STF2773 AC 64 20.3 2
Show 21103+4359 STF2773 AD 262 29.4 2
Show 21103+4359 STF2773 AE 149 52.2 2
Show 21103+4359 STF2773 EF 41 10.7 3
Show 21112+4346 ES 1454 AB 111 66.8 18
Show 21112+4346 ES 1454 BC 285 3.2 19
Show 21108+4417 A 882 228 2.6 20
Show 21099+4422 STF2772 224 12.4 23
Show 21118+4417 TDT2812 258 0.5 26
Show 21120+4419 TDT2816 89 0.3 30
Show 21100+4326 ES 1453 67 5.3 34
Show 21079+4430 LDS2490 190 12.6 38
Show 21139+4400 COU2299 33 0.4 42
Show 21071+4322 ES 1452 19 2.3 49
Show 21086+4312 GRV 423 212 62.4 49
Show 21058+4341 BU 679 75 0.7 50
Show 21136+4433 ES 1333 296 1.6 51
Show 21073+4440 A 881 218 4.3 52
Show 21145+4329 J 610 26 3.3 57
Show 21069+4314 TDT2759 119 0.5 57
Show 21139+4438 TDT2839 352 1.2 57
Show 21105+4300 VKI 39 236 1.3 59
Show 21152+4339 LDS2501 274 11.3 59
Show 21053+4328 LDS2486 329 78.2 61
Show 21062+4315 DAM1460 284 2.4 61
Show 21064+4314 LDS2488 166 2.2 61
Show 21099+4257 LDS2492 135 21.5 62
Show 21118+4259 STJ 91 271 1.0 63
Show 21137+4453 LDS2498 316 13.0 64
Show 21071+4459 LDS2489 255 16.0 64
Show 21061+4448 ROE 45 AB 286 134.5 65
Show 21061+4448 ROE 45 AD 241 131.8 65
Show 21080+4500 TDT2774 173 1.8 65
Show 21061+4448 ROE 45 DE 6 27.5 65
Show 21154+4325 LDS2502 172 67.0 66
Show 21061+4448 ROE 45 BC 238 123.3 67
Show 21061+4448 ROE 45 BF 312 10.8 67
Show 21104+4253 BRT1144 AB 19 2.9 67
Show 21104+4253 BRT1144 AC 341 5.1 67
Show 21104+4253 BRT1144 BC 309 3.3 67
Show 21061+4448 TDT2745 Ca,Cb 116 0.6 67
Show 21061+4448 ROE 45 CD 107 124.4 67
Show 21051+4444 SMA 124 72 9.2 70
Show 21080+4504 SMA 126 18 8.9 70
Show 21158+4326 TDT2867 305 0.6 71
Show 21108+4249 VKI 40 255 3.8 71
Show 21166+4357 BRT1147 2.6 71
Show 21069+4256 ES 1580 88 3.8 72

 
 
WDS 21101+4359 : COMPONENTS
 
 
  A B
B pa=173.4°
sep=21.64"
 
C pa=170.3°
sep=23.77"
pa=141.8°
sep=2.46"
 
 
21101+4359 A
 
 
Name HD 201734 Coord arcsec 2000 211004.76+435923.3 Mag 8.27 Spectral class A0 (white)
PmRA 5.00 PmDE 3.0 SAO 50525 Tycho2 3181-05363-1
HD 201734 DM BD+43 3824
Tycho2
Tycho2 3181-05363-1 Pflag RAmdeg 317.51983369 DEmdeg 43.98981836
PmRA 5.3 PmDE 4.5 E RAmdeg 6 E DEmdeg 5
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.25 EpDEm 1991.41
Num 6 Q RAmdeg 1.2 Q DEmdeg 0.6 Q pmRA 1.2
Q pmDE 0.5 BTmag 8.281 E BTmag 0.016 VTmag 8.274
E VTmag 0.012 Prox 894 TYC T HIP
CCDM RAdeg 317.51981694 DEdeg 43.98980806 EpRA 1990 1.65
EpDE 1990 1.66 E RAdeg 5.7 E DEdeg 5.4 Posflg
Corr 0.2
SAO
SAO 50525 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 0.025 Vmag 8.1 SpType A0
Double code Source 4 CatNum 1937 DM BD+43 3824
DMcomp BDsup HD 201734 M HD 0
GC RA1950rad 5.5337495 DE1950rad 0.7641982 PmRA2000 -0.0004
PmDE2000 0.022
CCDM
Ccdm 21101+4359 RComp Comp A Note1
Note2 Discov num DRAs -1.35 DDEs 23.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.4 Sp A0 PmNote *
PmRA -14 PmDE 5 Dm number +43 3824 Cat1 BD
Name2 +43 1937 Cat2 AGK2/3 HD 201734 M HD
ADS BDS A14705 M ADS BDS N IDS IDS 21064N4335A
HIC
 
 
21101+4359 B
 
 
Coord arcsec 2000 211004.99+435901.8 Coord calc 211004.99+435901.8 Mag 11.2 PmRA -14.00
PmDE 4.0 Calc delta mag 2.93
CCDM
Ccdm 21101+4359 RComp Comp B Note1
Note2 Discov num HJ 1618 DRAs DDEs
R dRAs Year 1915 Theta 172 Rho 19.8
Obs 3 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14705 M ADS BDS N IDS IDS 21064N4335B
HIC
 
 
21101+4359 C
 
 
Coord arcsec 2000 211005.13+435859.9 Mag 12.2 Calc delta mag 3.93 Calc coord yes
CCDM
Ccdm 21101+4359 RComp B Comp C Note1
Note2 Discov num HJ 1618 DRAs DDEs
R dRAs Year 1902 Theta 133 Rho 2.6
Obs 2 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14705 M ADS BDS N IDS IDS 21064N4335C
HIC