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Doubles in session


Current system
20519+0544
A 613
HD 198684


Nearby doubles
22' : 20527+0527
J 572

22' : 20529+0529
GCB 60

22' : 20514+0524
TOB 313

23' : 20533+0551
UC 4318

24' : 20511+0526
GCB 59

28' : 20526+0517
GCB 75

32' : 20500+0533
STTA210AB

35' : 20496+0538
GWP3002

41' : 20511+0623
STF2730

43' : 20540+0614
TDT2616

47' : 20539+0620
TDS1107

48' : 20533+0627
TDT2607

57' : 20506+0453
BAL2974

57' : 20488+0512
J 2321AB

59' : 20492+0502
HDS2967

63' : 20478+0555
TDT2543

64' : 20478+0600
BU 65

64' : 20561+0535
TDT2642

69' : 20546+0641
SLN 86

74' : 20516+0431
KPP1501

75' : 20543+0650
TDT2621

80' : 20530+0427
TDT2603

85' : 20556+0649
TDT2635

86' : 20554+0653
BRT2188

87' : 20559+0646
NSN 739

89' : 20464+0618
TDT2533



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.

20519+0544 A 613 (HD 198684)

 
 
20h 51m 54.49s +05° 44' 29.5" P.A. 324.00 sep 0.7 mag 9.10,9.03 Sp F5
 
 
Coord 2000 20519+0544 Discov num A   613 Comp Coord arcsec 2000 20 51 54.49 +05 44 29.5
Date first 1903 Date last 2018 Obs 57
Pa first 9 Pa last 324.1 P.A. Now (θ) 324.1°
Sep first 0.8 Sep last 0.73 Sep. Now (ρ) 0.73"
Mag pri 9.10 Mag sec 9.03 delta mag (ΔM) 0.07 Spectral class F5 (yellow-white)
Pri motion ra +075 Sec motion ra +075
Pri motion dec -004 Sec motion dec -004
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198684 Constellation Delphinus SAO 126304 Tycho2 0524-01786-1
Gaia DR2 1735730806984435712 HD 198684 ADS 14368
 
 
ORBITAL ELEMENTS
 
 
Period (P)695y Periastron (T)2605y Semi-major axis (a)1.05a
Eccentricity (e)0.227 Inclination (i)118° Longitude of periastron (ω)160.8°
Node (Ω)178.4° Notes ReferenceUSN2002
Equinox2000 Last observation1996 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 329.0 0.678
2001 328.4 0.674
2002 327.8 0.670
2003 327.2 0.666
2004 326.7 0.662
2005 326.1 0.658
2006 325.4 0.653
2007 324.8 0.649
2008 324.2 0.645
2009 323.6 0.641
2010 322.9 0.637
2011 322.3 0.633
2012 321.6 0.629
2013 321.0 0.625
2014 320.3 0.621
2015 319.6 0.618
2016 318.9 0.614
2017 318.2 0.610
2018 317.5 0.606
2019 316.8 0.602
2020 316.1 0.598
2021 315.4 0.594
2022 314.6 0.591
2023 313.9 0.587
2024 313.1 0.583
2025 312.3 0.580
2026 311.5 0.576
2027 310.8 0.573
2028 309.9 0.569
2029 309.1 0.566
2030 308.3 0.562


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds20519%2B0544a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20519+0544 A 613 (HD 198684) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
USN2002 orb - Seymour, D., Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2002AJ....123.1023S
USN2002 AJ 123, 1023, 2002
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20519+0544 A 613 2007 52 325 0.6 9.10 9.03 F5 O 205154.49+054429.5
20519+0544 A 613 2016 51 320 0.7 9.10 9.03 F5 O 205154.49+054429.5
20519+0544 A 613 2017 53 327 0.8 9.10 9.03 F5 O 205154.49+054429.5
20519+0544 A 613 2018 55 324 0.7 9.10 9.03 F5 O 205154.49+054429.5

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

 
 
WDS 20519+0544 A 613 (HD 198684) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20519+0544 A 613 (HD 198684) : MEASURES
 
 
No records found.

 
 
WDS 20519+0544 (HD 198684) : VIRTUAL EYEPIECE
 
 

20519+0544 A 613A mag 9.1 Sp F5 20519+0544 A 613B sep 0.7 P.A. 324.20 mag 9.03 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 20519+0544 (HD 198684) : ALADIN DSS IMAGE @ 20h 51m 54.49s +05° 44' 29.5"
 
 
 
 
WDS 20519+0544 A 613 (HD 198684) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20519+0544 A 613 distance=1' 20527+0527 J 572 distance=22' 20529+0529 GCB 60 distance=22' 20514+0524 TOB 313 distance=22' 20533+0551 UC 4318 distance=23' 20511+0526 GCB 59 distance=24' 20526+0517 GCB 75 distance=28' 20500+0533 STTA210BC distance=31' 20500+0533 STTA210AB distance=32' 20496+0538 GWP3002 distance=35' 20511+0623 STF2730 distance=41' 20540+0614 TDT2616 distance=43' 20539+0620 TDS1107 distance=47' 20533+0627 TDT2607 distance=48' 20506+0453 BAL2974 distance=57' 20488+0512 J 2321AB distance=57' 20488+0512 OSO 135AC distance=57' 20492+0502 HDS2967 distance=59' 20478+0555 TDT2543 distance=63' 20478+0600 BU 65 distance=64' 20561+0535 TDT2642 distance=64' 20546+0641 SLN 86 distance=69' 20516+0431 KPP1501 distance=74' 20543+0650 TDT2621 distance=75' 20530+0427 TDT2603 distance=80' 20556+0649 TDT2635 distance=85' 20554+0653 BRT2188 distance=86' 20559+0646 NSN 739 distance=87' 20464+0618 TDT2533 distance=89' 20525+0416 TDT2595 distance=90' 20557+0432 STF2735 distance=92' 20559+0435 UC 4332 distance=93' 20459+0607 TDT2523 distance=93' 20484+0426 AG 267 distance=95' 20487+0706 J 3223 distance=96' 20527+0720 STF2733 distance=97' 20455+0553 HDS2954 distance=97' 20566+0659 TDT2649 distance=102' 20560+0708 GWP3020 distance=103' 20588+0600 UC 4347 distance=105' 20473+0426 UC 4288 distance=105' 20564+0422 CVR 877 distance=106' 20539+0730 TDT2613 distance=110' 20516+0734 A 612 distance=110' 20582+0447 AG 268 distance=110' 20458+0445 BAL2971 distance=110' 20484+0407 BAL2546 distance=111' 20513+0353 GWP3006 distance=113' 20541+0357 HJ 3005 distance=113' 20552+0729 GWP3017 distance=115' 20583+0654 KPP 481 distance=118' 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 20519+0544 A 613 324 0.7 1
Show 20527+0527 J 572 138 3.4 22
Show 20529+0529 GCB 60 152 6.5 22
Show 20514+0524 TOB 313 130 20.8 22
Show 20533+0551 UC 4318 168 33.0 23
Show 20511+0526 GCB 59 238 10.1 24
Show 20526+0517 GCB 75 101 3.3 28
Show 20500+0533 STTA210 BC 222 12.4 31
Show 20500+0533 STTA210 AB 127 78.2 32
Show 20496+0538 GWP3002 247 57.2 35
Show 20511+0623 STF2730 333 3.3 41
Show 20540+0614 TDT2616 100 0.4 43
Show 20539+0620 TDS1107 110 1.6 47
Show 20533+0627 TDT2607 281 0.6 48
Show 20506+0453 BAL2974 42 3.7 57
Show 20488+0512 J 2321 AB 151 6.6 57
Show 20488+0512 OSO 135 AC 158 16.6 57
Show 20492+0502 HDS2967 190 0.4 59
Show 20478+0555 TDT2543 263 0.6 63
Show 20478+0600 BU 65 200 1.5 64
Show 20561+0535 TDT2642 77 0.6 64
Show 20546+0641 SLN 86 160 4.8 69
Show 20516+0431 KPP1501 50 11.3 74
Show 20543+0650 TDT2621 4 1.7 75
Show 20530+0427 TDT2603 281 1.7 80
Show 20556+0649 TDT2635 259 0.8 85
Show 20554+0653 BRT2188 46 4.2 86
Show 20559+0646 NSN 739 52 8.8 87
Show 20464+0618 TDT2533 230 0.7 89
Show 20525+0416 TDT2595 359 0.7 90
Show 20557+0432 STF2735 282 2.0 92
Show 20559+0435 UC 4332 60 52.9 93
Show 20459+0607 TDT2523 80 1.7 93
Show 20484+0426 AG 267 260 6.1 95
Show 20487+0706 J 3223 307 2.7 96
Show 20527+0720 STF2733 145 40.2 97
Show 20455+0553 HDS2954 298 1.0 97
Show 20566+0659 TDT2649 8 0.6 102
Show 20560+0708 GWP3020 179 6.7 103
Show 20588+0600 UC 4347 31 40.4 105
Show 20473+0426 UC 4288 79 48.6 105
Show 20564+0422 CVR 877 125 26.3 106
Show 20539+0730 TDT2613 69 0.6 110
Show 20516+0734 A 612 7 2.0 110
Show 20582+0447 AG 268 287 12.5 110
Show 20458+0445 BAL2971 21 17.1 110
Show 20484+0407 BAL2546 40 9.6 111
Show 20513+0353 GWP3006 117 24.4 113
Show 20541+0357 HJ 3005 300 30.5 113
Show 20552+0729 GWP3017 96 132.1 115
Show 20583+0654 KPP 481 233 3.8 118

 
 
WDS 20519+0544 : COMPONENTS
 
 
  A
B pa=324.2°
sep=0.73"
 
 
20519+0544 A
 
 
Componente originario normalizzato AB Name HD 198684 Coord arcsec 2000 205154.49+054429.5 Mag 9.1
Spectral class F5 (yellow-white) PmRA 75.00 PmDE -4.0
CCDM
Ccdm 20519+0544 RComp Comp A Note1
Note2 Discov num DRAs 0.41 DDEs 29.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp F5 PmNote *
PmRA 72 PmDE -16 Dm number +05 4637 Cat1 BD
Name2 +05 3050 Cat2 AGK2/3 HD 198684 M HD
ADS BDS A14368 M ADS BDS N IDS IDS 20469N0522A
HIC
 
 
20519+0544 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205154.46+054430.1 Mag 9.03 PmRA 75.00
PmDE -4.0 SAO 126304 Tycho2 0524-01786-1 HD 198684
DM BD+05 4637 Calc delta mag 0.07 Calc coord yes
Tycho2
Tycho2 0524-01786-1 Pflag RAmdeg 312.97698669 DEmdeg 5.74160615
PmRA 75.4 PmDE -3.9 E RAmdeg 6 E DEmdeg 8
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.39 EpDEm 1990.83
Num 10 Q RAmdeg 0.3 Q DEmdeg 0.9 Q pmRA 0.4
Q pmDE 0.9 BTmag 9.034 E BTmag 0.018 VTmag 8.500
E VTmag 0.014 Prox 999 TYC T HIP
CCDM RAdeg 312.97681250 DEdeg 5.74161583 EpRA 1990 1.73
EpDE 1990 1.49 E RAdeg 6.3 E DEdeg 7.9 Posflg P
Corr 0.1
SAO
SAO 126304 DelFlag RA1950 PmRA1950 0.0055
DE1950 PmDE1950 -0.009 Vmag 8.6 SpType F5
Double code Source 32 CatNum 10415 DM BD+05 4637
DMcomp BDsup HD 198684 M HD 0
GC RA1950rad 5.45163096 DE1950rad 0.0969162 PmRA2000 0.0057
PmDE2000 -0.012
CCDM
Ccdm 20519+0544 RComp Comp B Note1
Note2 Discov num A 613 DRAs DDEs
R dRAs Year 1958 Theta 348 Rho 0.8
Obs 99 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14368 M ADS BDS N IDS IDS 20469N0522B
HIC