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Current system
20437+4619
HO 140


Nearby doubles
9' : 20438+4610
TDT2503

13' : 20427+4627
TDS1092

19' : 20431+4637
BRT2273

20' : 20456+4621
HDS2955

32' : 20437+4651
TDS1096

33' : 20466+4632
KUI 101

34' : 20423+4549
STT 411AB

40' : 20464+4551
CVR 230

50' : 20421+4532
BKO 157

51' : 20420+4532
BRT2271

52' : 20388+4629
BRT2268

53' : 20434+4712
TDT2496

56' : 20489+4607
HJ 1581

58' : 20482+4653
ES 669

58' : 20443+4716
TDT2509

58' : 20440+4521
KPP3361

59' : 20473+4535
HO 280

60' : 20427+4521
ES 1270

60' : 20494+4613
ES 670

60' : 20450+4718
BRT2274

65' : 20436+4514
CBL 85

67' : 20394+4530
TDS1087

67' : 20414+4517
H N 73
Deneb

68' : 20499+4640
BU 250

68' : 20501+4635
ES 671

69' : 20489+4537
HDS2965



Selections
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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.

20437+4619 HO 140

 
 
20h 43m 44.15s +46° 19' 05.4" P.A. 313.00 sep 8.0 mag 7.17,13.30 Sp K0IV dist. 177.94 pc (580.44 l.y.)
 
 
Coord 2000 20437+4619 Discov num HO  140 Comp Coord arcsec 2000 20 43 44.15 +46 19 05.4
Date first 1885 Date last 2015 Obs 10
Pa first 314 Pa last 313.3 P.A. Now (θ) 313.3°
Sep first 7.2 Sep last 8.027 Sep. Now (ρ) 8.027"
Mag pri 7.17 Mag sec 13.30 delta mag (ΔM) 6.13 Spectral class K0IV (yellow-orange)
Pri motion ra -006 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50000 HIP 102306 Tycho2 3574-02509-1
Gaia DR2 2166539047813034240 HD 197717 GC 28903 BD BD+45 3252
Distance 177.94 Distance ly 580.44
 
 
WDS 20437+4619 HO 140 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20437+4619 HO 140 2008 9 312 8.0 7.20 13.30 K0IV D 204344.15+461905.4
20437+4619 HO 140 2010 10 313 7.1 7.17 13.30 K0IV 204344.15+461905.4
20437+4619 HO 140 2015 10 313 8.0 7.17 13.30 K0IV 204344.15+461905.4

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

 
 
WDS 20437+4619 HO 140 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20437+4619 HO 140 : MEASURES
 
 
No records found.

 
 
WDS 20437+4619 : VIRTUAL EYEPIECE
 
 

20437+4619 HO 140A mag 7.17 Sp K0IV 20437+4619 HO 140B sep 6.8 P.A. 323.80 mag 13.3 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 20437+4619 : ALADIN DSS IMAGE @ 20h 43m 44.15s +46° 19' 05.4"
 
 
 
 
WDS 20437+4619 HO 140 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20437+4619 HO 140 distance=0' 20438+4610 TDT2503 distance=9' 20427+4627 TDS1092 distance=13' 20431+4637 BRT2273 distance=19' 20456+4621 HDS2955 distance=20' 20437+4651 TDS1096 distance=32' 20423+4549 WAL 132BC distance=33' 20423+4549 CTT 15BD distance=33' 20423+4549 CTT 15BE distance=33' 20466+4632 KUI 101 distance=33' 20423+4549 STT 411AB distance=34' 20423+4549 WAL 132AC distance=34' 20423+4549 BKO 158AF distance=34' 20423+4549 BKO 158EH distance=34' 20423+4549 BKO 158EF distance=34' 20423+4549 BKO 158EG distance=34' 20423+4549 BKO 158EI distance=34' 20464+4551 CVR 230 distance=40' 20421+4532 BKO 157 distance=50' 20420+4532 BRT2271 distance=51' 20388+4629 BRT2268 distance=52' 20434+4712 TDT2496 distance=53' 20489+4607 HJ 1581 distance=56' 20482+4653 ES 669 distance=58' 20443+4716 TDT2509 distance=58' 20440+4521 KPP3361 distance=58' 20473+4535 HO 280 distance=59' 20427+4521 ES 1270 distance=60' 20494+4613 ES 670 distance=60' 20450+4718 BRT2274 distance=60' 20436+4514 CBL 85 distance=65' 20394+4530 TDS1087 distance=67' 20414+4517 H N 73 (Deneb) distance=67' 20499+4640 BU 250 distance=68' 20501+4635 ES 671 distance=68' 20489+4537 HDS2965 distance=69' 20508+4628 BRT2276AB distance=74' 20508+4628 FYM 314AC distance=74' 20508+4628 FYM 314AD distance=74' 20437+4733 A 749 distance=74' 20397+4721 A 748 distance=74' 20485+4519 LDS2456 distance=77' 20490+4525 SMA 120 distance=78' 20434+4501 ES 668AB distance=79' 20434+4501 ES 668AC distance=79' 20434+4501 FYM 322AD distance=79' 20379+4710 TDT2436 distance=79' 20492+4525 COU2646 distance=79' 20432+4458 BKO 159 distance=82' 20433+4456 ES 2699 distance=84' 20360+4555 STJ 103 distance=85' 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 20437+4619 HO 140 313 8.0
Show 20438+4610 TDT2503 68 0.5 9
Show 20427+4627 TDS1092 315 0.9 13
Show 20431+4637 BRT2273 308 4.7 19
Show 20456+4621 HDS2955 289 0.4 20
Show 20437+4651 TDS1096 147 0.9 32
Show 20423+4549 WAL 132 BC 4 40.1 33
Show 20423+4549 CTT 15 BD 178 86.6 33
Show 20423+4549 CTT 15 BE 141 87.9 33
Show 20466+4632 KUI 101 112 0.3 33
Show 20423+4549 STT 411 AB 349 31.8 34
Show 20423+4549 WAL 132 AC 357 71.2 34
Show 20423+4549 BKO 158 AF 143 41.0 34
Show 20423+4549 BKO 158 EH 340 51.6 34
Show 20423+4549 BKO 158 EF 281 24.9 34
Show 20423+4549 BKO 158 EG 221 28.7 34
Show 20423+4549 BKO 158 EI 236 39.6 34
Show 20464+4551 CVR 230 7 112.9 40
Show 20421+4532 BKO 157 240 8.9 50
Show 20420+4532 BRT2271 269 4.5 51
Show 20388+4629 BRT2268 320 3.4 52
Show 20434+4712 TDT2496 49 1.7 53
Show 20489+4607 HJ 1581 170 22.4 56
Show 20482+4653 ES 669 28 6.8 58
Show 20443+4716 TDT2509 180 1.4 58
Show 20440+4521 KPP3361 134 2.2 58
Show 20473+4535 HO 280 75 11.7 59
Show 20427+4521 ES 1270 289 5.9 60
Show 20494+4613 ES 670 81 6.5 60
Show 20450+4718 BRT2274 41 4.9 60
Show 20436+4514 CBL 85 166 17.7 65
Show 20394+4530 TDS1087 141 1.0 67
Show Deneb 20414+4517 H N 73 105 75.6 67
Show 20499+4640 BU 250 7 18.3 68
Show 20501+4635 ES 671 91 1.6 68
Show 20489+4537 HDS2965 282 0.1 69
Show 20508+4628 BRT2276 AB 254 3.7 74
Show 20508+4628 FYM 314 AC 149 9.5 74
Show 20508+4628 FYM 314 AD 86 11.2 74
Show 20437+4733 A 749 306 0.5 74
Show 20397+4721 A 748 27 1.4 74
Show 20485+4519 LDS2456 236 18.0 77
Show 20490+4525 SMA 120 313 4.3 78
Show 20434+4501 ES 668 AB 68 5.2 79
Show 20434+4501 ES 668 AC 269 23.4 79
Show 20434+4501 FYM 322 AD 200 18.7 79
Show 20379+4710 TDT2436 82 0.6 79
Show 20492+4525 COU2646 266 0.4 79
Show 20432+4458 BKO 159 37 13.2 82
Show 20433+4456 ES 2699 296 40.1 84
Show 20360+4555 STJ 103 338 1.3 85

 
 
WDS 20437+4619 : COMPONENTS
 
 
  A
B pa=323.8°
sep=6.83"
 
 
20437+4619 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204344.15+461905.4 Mag 7.17 Spectral class K0IV (yellow-orange)
PmRA -6.00 PmDE -16.0 SAO 50000 HIP 102306
Tycho2 3574-02509-1 HD 197717 GC 28903 BD BD+45 3252
Tycho2
Tycho2 3574-02509-1 Pflag RAmdeg 310.93396014 DEmdeg 46.31812500
PmRA -2.6 PmDE -19.1 E RAmdeg 4 E DEmdeg 4
E pmRA 0.8 E pmDE 0.9 EpRAm 1991.33 EpDEm 1991.34
Num 14 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 1.0 BTmag 8.406 E BTmag 0.016 VTmag 7.169
E VTmag 0.010 Prox 999 TYC T HIP 102306
CCDM RAdeg 310.93396889 DEdeg 46.31816889 EpRA 1990 1.67
EpDE 1990 1.67 E RAdeg 4.3 E DEdeg 4.4 Posflg
Corr 0.1
SAO
SAO 50000 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 -0.003 Vmag 7.2 SpType G5
Double code Source 70 CatNum 28903 DM BD+45 3252
DMcomp BDsup HD 197717 M HD 0
GC 28903 RA1950rad 5.41948028 DE1950rad 0.80523981 PmRA2000 -0.0006
PmDE2000 -0.006
Hipparcos
Catalog H HIP 102306 Proxy RAhms 20 43 44.15
DEdms +46 19 05.4 Vmag 7.05 VarFlag R Vmag H
RAdeg 310.934 DEdeg 46.3182 AstroRef Plx 5.7
CCDM 20437+4619 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 197717 BD BD+45 3252
CD CP Dm number +45 3252 VIred 0.99
SpType K0IV R SpType Coord arcsec 2000 204344.15+461905.4
Hipparcos 2
HIP 102306 Sn 5 So 0 Nc 1
RArad 5.4268214971 DErad 0.8084045826 Plx 5.62 PmRA -2.53
PmDE -16.84 E RArad 0.4 E DErad 0.37 E Plx 0.5
E pmRA 0.49 E pmDE 0.43 Hpmag 7.2195 E Hpmag 0.001
SHp 0.009 VA 0 BV 1.041 E BV 0.008
VI 1.01
CCDM
Ccdm 20437+4619 RComp Comp A Note1
Note2 Discov num DRAs 2.15 DDEs 5.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp G5 PmNote *
PmRA -2 PmDE -18 Dm number +45 3252 Cat1 BD
Name2 +46 1679 Cat2 AGK2/3 HD 197717 M HD
ADS BDS A14219 M ADS BDS N IDS IDS 20404N4557A
HIC 102306
 
 
20437+4619 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204343.76+461910.9 Mag 13.3 Calc delta mag 6.13
Calc coord yes
CCDM
Ccdm 20437+4619 RComp Comp B Note1
Note2 Discov num HO 140 DRAs DDEs
R dRAs Year 1885 Theta 312 Rho 7.0
Obs 5 Vmag 13.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14219 M ADS BDS N IDS IDS 20404N4557B
HIC 102306