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Doubles in session


Current system
20594+3626
HU 764
HD 199987


Nearby doubles
9' : 21001+3627
J 1219

12' : 21002+3620
TDT2689

12' : 20594+3637
SEI1352

15' : 20599+3612
SEI1359

19' : 20584+3612
POP 82

20' : 20587+3644
ES 251

20' : 21001+3608
TDT2687

20' : 20595+3646
SEI1354

21' : 20577+3623
SEI1330

24' : 20579+3641
SEI1335

26' : 20594+3651
TDT2678

27' : 20573+3632
SEI1328

28' : 20596+3558
SEI1355

29' : 21010+3647
SEI1367

29' : 20575+3643
SEI1329

29' : 21018+3630
SEI1372

30' : 20590+3655
SEI1347

31' : 21000+3655
SEI1360AB

32' : 20593+3554
SEI1350

32' : 20587+3657
COU2296

33' : 21012+3602
CLP 1AB

34' : 21002+3658
HO 147AB

38' : 20596+3703
HJ 1601

39' : 20563+3634
SEI1324

40' : 20562+3614
SEI1323

40' : 20562+3616
TOB 202



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.

20594+3626 HU 764 (HD 199987)

 
 
20h 59m 23.14s +36° 25' 43.8" P.A. 190.00 sep 0.4 mag 8.24,9.94 Sp B9 dist. 520.83 pc (1698.95 l.y.)
 
 
Coord 2000 20594+3626 Discov num HU  764 Comp Coord arcsec 2000 20 59 23.14 +36 25 43.8
Date first 1904 Date last 2008 Obs 19
Pa first 188 Pa last 190.3 P.A. Now (θ) 190.3°
Sep first 0.3 Sep last 0.38 Sep. Now (ρ) 0.38"
Mag pri 8.24 Mag sec 9.94 delta mag (ΔM) 1.7 Spectral class B9 (blue-white)
Pri motion ra -004 Sec motion ra
Pri motion dec +024 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 199987 Constellation Cygnus SAO 70765 HIP 103594
Tycho2 2700-02427-1 Gaia DR2 1871328486504460800 HD 199987 BD BD+35 4344
Distance 520.83 Distance ly 1698.95
 
 
WDS 20594+3626 HU 764 (HD 199987) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
Hu_1897 Ma - Hussey, W.J. 1897AJ.....17...97H
Hu_1897 AJ 17, 97, 1897
Hu_1898 Ma j Hussey, W.J. 1898AJ.....18..145H
Hu_1898 AJ 18, 145, 1898
Hu_1899 Ma j Hussey, W.J. 1899AN....150..175H
Hu_1899 AN 150, 175, 1899
Hu_1900a Ma - Hussey, W.J. 1900AJ.....20..192H
Hu_1900a AJ 20, 192, 1900
Hu_1900b Ma - Hussey, W.J. 1900AJ.....21...35H
Hu_1900b AJ 21, 35, 1900
Hu_1900c Ma j Hussey, W.J. 1900AN....152..329H
Hu_1900c AN 152, 329, #3645, 1900
Hu_1901a Ma j Hussey, W.J. 1901PLicO...5.....H
Hu_1901a +orb Pub. Lick Obs. 5, 1901
Hu_1901b Ma j Hussey, W.J. 1901LicOB...1...82H
Hu_1901b Lick Obs. Bull. 1, 82, 1901
Hu_1902a Ma j Hussey, W.J. 1902LicOB...1..161H
Hu_1902a Lick Obs. Bull. 1, 161, 1902
Hu_1902b Ma j Hussey, W.J. 1902LicOB...2....1H
Hu_1902b Lick Obs. Bull. 2, 1, 1902
Hu_1903a Ma j Hussey, W.J. 1903LicOB...2...73H
Hu_1903a Lick Obs. Bull. 2, 73, 1903
Hu_1903b Ma j Hussey, W.J. 1903LicOB...2..115H
Hu_1903b Lick Obs. Bull. 2, 115, 1903
Hu_1904a Ma j Hussey, W.J. 1904LicOB...2..180H
Hu_1904a Lick Obs. Bull. 2, 180, 1904
Hu_1904b Ma - Hussey, W.J. 1904LicOB...3...53H
Hu_1904b Lick Obs. Bull. 3, 53, 1904
Hu_1905a Ma - Hussey, W.J. 1905LicOB...3...95H
Hu_1905a Lick Obs. Bull. 3, 95, 1905
Hu_1905b Ma - Hussey, W.J. 1905LicOB...3..116H
Hu_1905b Lick Obs. Bull. 3, 116, 1905
Hu_1905c Ma - Hussey, W.J. 1905LicOB...3..151H
Hu_1905c Lick Obs. Bull. 3, 151, 1905
Hu_1906A Ma - Hussey, W.J. 1906MmRAS..56....1L
Hu_1906A cited by Lewis (MemRAS 56, 1, 1906)
Hu_1906B Ma - Hussey, W.J. 1906QB821.B972.....
Hu_1906B cited in BDS (Burnham Double Star Cat.), 1906
Hu_1907 Ma - Hussey, W.J. 1907LicOB...4..124H
Hu_1907 Lick Obs. Bull. 4, 124, 1907
Hu_1910 Ma - Hussey, W.J. 1910AJ.....21..105H
Hu_1910 AJ 21, 105, 1910
Hu_1911 Ma - Hussey, W.J. 1911LicOB...6..182H
Hu_1911 Lick Obs. Bull. 6, 182, 1911
Hu_1912a Ma - Hussey, W.J. 1915POMic...1..147H
Hu_1912a Pub. Univ. Michigan Obs. 1, 147, 1912
Hu_1912b Ma - Hussey, W.J. 1915POMic...1..160H
Hu_1912b Pub. Univ. Michigan Obs. 1, 160, 1912
Hu_1912c Ma - Hussey, W.J. 1915POMic...1..167H
Hu_1912c Pub. Univ. Michigan Obs. 1, 167, 1912
Hu_1927A Ma - Hussey, W.J. 1927sdsc.book......
Hu_1927A cited in SDS (Southern Double Star Cat.), 1927
Hu_1932A Ma - Hussey, W.J. 1932QB821.A43......
Hu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Hu_9999 Ma - Hussey, W.J. ...................
Hu_9999 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
20594+3626 HU 764 1991 18 194 0.4 8.24 9.94 B9 D 205923.14+362543.8
20594+3626 HU 764 2008 19 190 0.4 8.24 9.94 B9 D 205923.14+362543.8

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

 
 
WDS 20594+3626 HU 764 (HD 199987) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20594+3626 HU 764 (HD 199987) : MEASURES
 
 
No records found.

 
 
WDS 20594+3626 (HD 199987) : VIRTUAL EYEPIECE
 
 

20594+3626 HU 764A mag 8.24 Sp B9 20594+3626 HU 764B sep 0.4 P.A. 188.30 mag 9.94 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 20594+3626 (HD 199987) : ALADIN DSS IMAGE @ 20h 59m 23.14s +36° 25' 43.8"
 
 
 
 
WDS 20594+3626 HU 764 (HD 199987) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20594+3626 HU 764 distance=0' 21001+3627 J 1219 distance=9' 21002+3620 TDT2689 distance=12' 20594+3637 SEI1352 distance=12' 20599+3612 SEI1359 distance=15' 20584+3612 POP 82 distance=19' 20587+3644 ES 251 distance=20' 21001+3608 TDT2687 distance=20' 20595+3646 SEI1354 distance=20' 20577+3623 SEI1330 distance=21' 20579+3641 SEI1335 distance=24' 20594+3651 TDT2678 distance=26' 20573+3632 SEI1328 distance=27' 20596+3558 SEI1355 distance=28' 21010+3647 SEI1367 distance=29' 20575+3643 SEI1329 distance=29' 21018+3630 SEI1372 distance=29' 20590+3655 SEI1347 distance=30' 21000+3655 SEI1360AB distance=31' 21000+3655 TOB 208AC distance=31' 20593+3554 SEI1350 distance=32' 20587+3657 COU2296 distance=32' 21012+3602 CLP 1BC distance=33' 21012+3602 CLP 1AB distance=33' 21002+3658 HO 147AB distance=34' 21002+3658 HO 147AC distance=34' 20596+3703 HJ 1601 distance=38' 20563+3634 SEI1324 distance=39' 20562+3614 SEI1323 distance=40' 20562+3616 TOB 202 distance=40' 21013+3554 SEI1368 distance=40' 20590+3541 GCB 61 distance=42' 20582+3706 TOB 204AB distance=43' 20582+3706 SEI1339CD distance=43' 20581+3547 J 796 distance=44' 20591+3542 SEI1345 distance=44' 21003+3543 SEI1361 distance=44' 21002+3547 POP 81 distance=44' 20560+3643 SEI1320 distance=45' 20592+3541 TDT2674 distance=46' 20581+3544 J 795AB distance=46' 20581+3544 J 795AC distance=46' 20561+3649 SEI1321 distance=46' 21013+3709 TDT2697 distance=49' 21032+3645 SEI1380AB distance=50' 21032+3645 WAL 134AC distance=50' 20577+3711 SEI1331 distance=50' 20582+3715 DAM 223 distance=52' 20580+3713 J 1076 distance=52' 21037+3630 SEI1383 distance=52' 20592+3718 ALI 434 distance=53' 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 20594+3626 HU 764 190 0.4
Show 21001+3627 J 1219 171 3.6 9
Show 21002+3620 TDT2689 244 2.3 12
Show 20594+3637 SEI1352 354 14.6 12
Show 20599+3612 SEI1359 108 16.5 15
Show 20584+3612 POP 82 25 5.5 19
Show 20587+3644 ES 251 141 6.6 20
Show 21001+3608 TDT2687 356 1.5 20
Show 20595+3646 SEI1354 325 26.4 20
Show 20577+3623 SEI1330 51 14.2 21
Show 20579+3641 SEI1335 28 18.2 24
Show 20594+3651 TDT2678 246 0.5 26
Show 20573+3632 SEI1328 234 7.9 27
Show 20596+3558 SEI1355 344 4.2 28
Show 21010+3647 SEI1367 247 20.6 29
Show 20575+3643 SEI1329 30 24.7 29
Show 21018+3630 SEI1372 181 24.8 29
Show 20590+3655 SEI1347 125 18.6 30
Show 21000+3655 SEI1360 AB 45 22.2 31
Show 21000+3655 TOB 208 AC 232 31.7 31
Show 20593+3554 SEI1350 48 28.1 32
Show 20587+3657 COU2296 103 1.0 32
Show 21012+3602 CLP 1 BC 150 267.2 33
Show 21012+3602 CLP 1 AB 39 74.3 33
Show 21002+3658 HO 147 AB 351 7.8 34
Show 21002+3658 HO 147 AC 248 26.2 34
Show 20596+3703 HJ 1601 141 6.5 38
Show 20563+3634 SEI1324 92 19.3 39
Show 20562+3614 SEI1323 169 21.2 40
Show 20562+3616 TOB 202 179 18.1 40
Show 21013+3554 SEI1368 57 13.3 40
Show 20590+3541 GCB 61 252 5.9 42
Show 20582+3706 TOB 204 AB 91 9.9 43
Show 20582+3706 SEI1339 CD 259 12.4 43
Show 20581+3547 J 796 200 3.7 44
Show 20591+3542 SEI1345 174 20.2 44
Show 21003+3543 SEI1361 281 20.8 44
Show 21002+3547 POP 81 204 5.9 44
Show 20560+3643 SEI1320 64 13.9 45
Show 20592+3541 TDT2674 340 0.9 46
Show 20581+3544 J 795 AB 227 2.8 46
Show 20581+3544 J 795 AC 311 14.0 46
Show 20561+3649 SEI1321 96 22.7 46
Show 21013+3709 TDT2697 129 2.5 49
Show 21032+3645 SEI1380 AB 259 13.2 50
Show 21032+3645 WAL 134 AC 285 35.8 50
Show 20577+3711 SEI1331 49 26.6 50
Show 20582+3715 DAM 223 35 4.8 52
Show 20580+3713 J 1076 78 1.7 52
Show 21037+3630 SEI1383 124 9.3 52
Show 20592+3718 ALI 434 292 44.7 53

 
 
WDS 20594+3626 : COMPONENTS
 
 
  A
B pa=188.3°
sep=0.38"
 
 
20594+3626 A
 
 
Componente originario normalizzato AB Name HD 199987 Coord arcsec 2000 205923.14+362543.8 Mag 8.24
Spectral class B9 (blue-white) PmRA -4.00 PmDE 24.0 SAO 70765
HIP 103594 Tycho2 2700-02427-1 HD 199987 BD BD+35 4344
Tycho2
Tycho2 2700-02427-1 Pflag RAmdeg 314.84645867 DEmdeg 36.42882891
PmRA 12.4 PmDE 3.3 E RAmdeg 5 E DEmdeg 4
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.38 EpDEm 1991.59
Num 12 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 8.116 E BTmag 0.015 VTmag 8.031
E VTmag 0.011 Prox 999 TYC T HIP 103594
CCDM AB RAdeg 314.84642306 DEdeg 36.42882139 EpRA 1990 1.71
EpDE 1990 1.81 E RAdeg 4.8 E DEdeg 4.4 Posflg P
Corr 0.1
SAO
SAO 70765 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.003 Vmag 8 SpType B9
Double code Source 5 CatNum 2113 DM BD+35 4344
DMcomp BDsup HD 199987 M HD 0
GC RA1950rad 5.48646396 DE1950rad 0.63238871 PmRA2000 0.0003
PmDE2000 -0.006
Hipparcos
Catalog H HIP 103594 Proxy H RAhms 20 59 23.14
DEdms +36 25 43.8 Vmag 8 VarFlag R Vmag H
RAdeg 314.846 DEdeg 36.4288 AstroRef A Plx 1.77
CCDM 20594+3626 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 194 Rho 0.385 HD 199987 BD BD+35 4344
CD CP Dm number +35 4344 VIred 0.07
SpType B9 R SpType Coord arcsec 2000 205923.14+362543.8
Hipparcos 2
HIP 103594 Sn 15 So 3 Nc 2
RArad 5.4951067395 DErad 0.6358030701 Plx 1.92 PmRA 12.22
PmDE 3.75 E RArad 0.46 E DErad 0.66 E Plx 0.8
E pmRA 0.51 E pmDE 0.65 Hpmag 8.037 E Hpmag 0.001
SHp 0.013 VA 0 BV 0.093 E BV 0.01
VI 0.11
CCDM
Ccdm 20594+3626 RComp Comp A Note1
Note2 Discov num DRAs -0.91 DDEs -14.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp B9 PmNote *
PmRA -1 PmDE 29 Dm number +35 4344 Cat1 BD
Name2 +36 2113 Cat2 AGK2/3 HD 199987 M HD
ADS BDS A14512 M ADS BDS N IDS IDS 20554N3602A
HIC 103594
 
 
20594+3626 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205923.14+362543.4 Mag 9.94 Calc delta mag 1.7
Calc coord yes
CCDM
Ccdm 20594+3626 RComp Comp B Note1
Note2 Discov num HU 764 DRAs DDEs
R dRAs Year 1951 Theta 198 Rho 0.4
Obs 9 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14512 M ADS BDS N IDS IDS 20554N3602B
HIC 103594