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Doubles in session


Current system
17309-5621
FIN 257


Nearby doubles
8' : 17317-5618
LDS 600

12' : 17305-5609
KPP2999

27' : 17335-5636
BRT3185

32' : 17284-5558
CPO 526

47' : 17254-5623
HJ 4942AB

48' : 17252-5621
BRT3318

49' : 17255-5604
RST 925

50' : 17251-5613
RST 923

52' : 17253-5600
HDS2459

54' : 17246-5629
HRG 123

59' : 17369-5550
TDT 434

61' : 17340-5526
TDT 418

62' : 17362-5538
HJ 4959

63' : 17297-5519
BRT2581

64' : 17326-5519
BRT3184

67' : 17369-5706
RST 942

70' : 17228-5608
RST 921

73' : 17395-5609
TDT 455

73' : 17301-5733
HJ 4950

74' : 17286-5510
HDO 273

79' : 17241-5716
BRT2823

79' : 17215-5628
HJ 4939

84' : 17400-5546
RST 943AB

86' : 17207-5625
FIN 255AB

91' : 17220-5528
BRT3183

92' : 17402-5533
TDT 459



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.

17309-5621 FIN 257

 
 
17h 30m 56.97s -56° 20' 40.5" P.A. 122.00 sep 0.1 mag 9.50,9.90 Sp G2
 
 
Coord 2000 17309-5621 Discov num FIN 257 Comp Coord arcsec 2000 17 30 56.97 -56 20 40.5
Date first 1930 Date last 2021 Obs 8
Pa first 327 Pa last 122.1 P.A. Now (θ) 122.1°
Sep first 0.5 Sep last 0.113 Sep. Now (ρ) 0.113"
Mag pri 9.50 Mag sec 9.90 delta mag (ΔM) 0.4 Spectral class G2 (yellow)
Pri motion ra -023 Sec motion ra
Pri motion dec -052 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ara Tycho2 8736-02846-1 Gaia DR2 5919391134996585984
 
 
ORBITAL ELEMENTS
 
 
Period (P)700y Periastron (T)2017.95y Semi-major axis (a)0.79a
Eccentricity (e)0.8 Inclination (i)49.2° Longitude of periastron (ω)49.2°
Node (Ω)55.7° Notes ReferenceTok2019c
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 26.8 0.246
2001 28.9 0.242
2002 31.1 0.237
2003 33.4 0.232
2004 35.8 0.227
2005 38.3 0.222
2006 40.9 0.217
2007 43.7 0.211
2008 46.6 0.205
2009 49.6 0.199
2010 52.9 0.192
2011 56.5 0.185
2012 60.3 0.178
2013 64.4 0.170
2014 69.0 0.162
2015 74.1 0.153
2016 79.7 0.145
2017 86.1 0.137
2018 93.2 0.129
2019 101.2 0.122
2020 110.0 0.117
2021 119.5 0.114
2022 129.4 0.112
2023 139.3 0.114
2024 148.8 0.117
2025 157.5 0.123
2026 165.4 0.131
2027 172.3 0.140
2028 178.3 0.150
2029 183.5 0.161
2030 188.0 0.172


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


 
  


wds17309-5621a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17309-5621 FIN 257 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 FIN Finsen, W.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17309-5621 FIN 257 1990 4 9 0.3 9.50 9.90 G2 173056.97-562040.5
17309-5621 FIN 257 2008 5 228 0.2 9.50 9.90 G2 173056.97-562040.5
17309-5621 FIN 257 2018 7 96 0.1 9.50 9.90 G2 173056.97-562040.5
17309-5621 FIN 257 2021 8 122 0.1 9.50 9.90 G2 O 173056.97-562040.5

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

 
 
WDS 17309-5621 FIN 257 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17309-5621 FIN 257 : MEASURES
 
 
No records found.

 
 
WDS 17309-5621 : VIRTUAL EYEPIECE
 
 

17309-5621 FIN 257A mag 9.5 Sp G2 17309-5621 FIN 257B sep 0.1 P.A. 138.50 mag 9.9 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 17309-5621 : ALADIN DSS IMAGE @ 17h 30m 56.97s -56° 20' 40.5"
 
 
 
 
WDS 17309-5621 FIN 257 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17309-5621 FIN 257 distance=0' 17317-5618 LDS 600 distance=8' 17305-5609 KPP2999 distance=12' 17335-5636 BRT3185 distance=27' 17284-5558 CPO 526 distance=32' 17254-5623 HJ 4942AB distance=47' 17254-5623 HJ 4942AC distance=47' 17254-5623 ANT 5AD distance=47' 17252-5621 BRT3318 distance=48' 17255-5604 RST 925 distance=49' 17251-5613 RST 923 distance=50' 17253-5600 HDS2459 distance=52' 17246-5629 HRG 123 distance=54' 17369-5550 TDT 434 distance=59' 17340-5526 TDT 418 distance=61' 17362-5538 HJ 4959 distance=62' 17297-5519 BRT2581 distance=63' 17326-5519 BRT3184 distance=64' 17369-5706 RST 942 distance=67' 17228-5608 RST 921 distance=70' 17395-5609 TDT 455 distance=73' 17301-5733 HJ 4950 distance=73' 17286-5510 HDO 273 distance=74' 17241-5716 BRT2823 distance=79' 17215-5628 HJ 4939 distance=79' 17400-5546 RST 943AB distance=84' 17400-5546 HLN 43AC distance=84' 17207-5625 FIN 255AB distance=86' 17207-5625 HJ 4938AB,C distance=86' 17220-5528 BRT3183 distance=91' 17402-5533 TDT 459 distance=92' 17342-5454 TOK 419 distance=92' 17416-5659 RST3118 distance=96' 17427-5607 TDT 476 distance=100' 17436-5634 RST3121 distance=106' 17388-5456 RST3111 distance=108' 17206-5730 BRT2822 distance=109' 17209-5511 TDT 316 distance=111' 17436-5701 HDO 276 distance=112' 17424-5516 BRT2582 distance=116' 17229-5801 HDO 270AB distance=120' 17229-5801 HDO 270AC distance=120' 17444-5533 KPP1903 distance=123' 17188-5734 RST 916 distance=124' 17427-5740 RST5544 distance=125' 17299-5416 CVN 102AB distance=126' 17299-5416 CVN 102AC distance=126' 17299-5416 CVN 102AD distance=126' 17299-5416 CVN 102AE distance=126' 17299-5416 CVN 102AF distance=126' 17341-5824 RST5086 distance=127' 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 17309-5621 FIN 257 122 0.1
Show 17317-5618 LDS 600 146 4.5 8
Show 17305-5609 KPP2999 172 2.5 12
Show 17335-5636 BRT3185 306 5.7 27
Show 17284-5558 CPO 526 26 8.2 32
Show 17254-5623 HJ 4942 AB 326 18.4 47
Show 17254-5623 HJ 4942 AC 64 41.2 47
Show 17254-5623 ANT 5 AD 39 47.2 47
Show 17252-5621 BRT3318 105 2.7 48
Show 17255-5604 RST 925 73 0.6 49
Show 17251-5613 RST 923 337 5.4 50
Show 17253-5600 HDS2459 174 0.2 52
Show 17246-5629 HRG 123 296 29.2 54
Show 17369-5550 TDT 434 120 0.4 59
Show 17340-5526 TDT 418 159 0.7 61
Show 17362-5538 HJ 4959 114 19.4 62
Show 17297-5519 BRT2581 183 5.0 63
Show 17326-5519 BRT3184 143 5.4 64
Show 17369-5706 RST 942 282 1.0 67
Show 17228-5608 RST 921 40 1.2 70
Show 17395-5609 TDT 455 214 2.0 73
Show 17301-5733 HJ 4950 306 10.3 73
Show 17286-5510 HDO 273 147 38.2 74
Show 17241-5716 BRT2823 107 4.4 79
Show 17215-5628 HJ 4939 227 29.6 79
Show 17400-5546 RST 943 AB 205 2.1 84
Show 17400-5546 HLN 43 AC 119 3.0 84
Show 17207-5625 FIN 255 AB 108 0.4 86
Show 17207-5625 HJ 4938 AB,C 109 25.0 86
Show 17220-5528 BRT3183 18 4.9 91
Show 17402-5533 TDT 459 324 0.6 92
Show 17342-5454 TOK 419 82 0.6 92
Show 17416-5659 RST3118 150 0.6 96
Show 17427-5607 TDT 476 324 1.0 100
Show 17436-5634 RST3121 67 1.6 106
Show 17388-5456 RST3111 175 0.6 108
Show 17206-5730 BRT2822 344 3.6 109
Show 17209-5511 TDT 316 280 0.9 111
Show 17436-5701 HDO 276 104 1.1 112
Show 17424-5516 BRT2582 6 6.2 116
Show 17229-5801 HDO 270 AB 184 1.8 120
Show 17229-5801 HDO 270 AC 153 40.0 120
Show 17444-5533 KPP1903 332 15.0 123
Show 17188-5734 RST 916 214 0.4 124
Show 17427-5740 RST5544 166 0.8 125
Show 17299-5416 CVN 102 AB 255 2.8 126
Show 17299-5416 CVN 102 AC 28 4.4 126
Show 17299-5416 CVN 102 AD 130 6.2 126
Show 17299-5416 CVN 102 AE 97 6.4 126
Show 17299-5416 CVN 102 AF 166 6.9 126
Show 17341-5824 RST5086 17 2.9 127

 
 
WDS 17309-5621 : COMPONENTS
 
 
  A
B pa=138.5°
sep=0.08"
 
 
17309-5621 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 173056.97-562040.5 Mag 9.5 Spectral class G2 (yellow)
PmRA -23.00 PmDE -52.0 Tycho2 8736-02846-1
Tycho2
Tycho2 8736-02846-1 Pflag RAmdeg 262.73735785 DEmdeg -56.34459846
PmRA -5.9 PmDE -46.2 E RAmdeg 11 E DEmdeg 12
E pmRA 1.5 E pmDE 1.5 EpRAm 1989.69 EpDEm 1989.29
Num 9 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.8 BTmag 10.068 E BTmag 0.025 VTmag 9.359
E VTmag 0.018 Prox 999 TYC T HIP
CCDM RAdeg 262.73738222 DEdeg -56.34449444 EpRA 1990 1.85
EpDE 1990 1.86 E RAdeg 11.8 E DEdeg 12.9 Posflg
Corr 0.4
CCDM
Ccdm 17309-5621 RComp Comp A Note1
Note2 Discov num DRAs 2.81 DDEs 18.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp G2 PmNote *
PmRA -32 PmDE -58 Dm number -56 8298 Cat1 CPD
Name2 244801 Cat2 SAO HD M HD
ADS BDS M ADS BDS N IDS IDS 17225S5616A
HIC
 
 
17309-5621 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 173056.98-562040.6 Mag 9.9 Calc delta mag 0.4
Calc coord yes
CCDM
Ccdm 17309-5621 RComp Comp B Note1
Note2 Discov num FIN 257 DRAs DDEs
R dRAs Year 1930 Theta 327 Rho 0.5
Obs 1 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17225S5616B
HIC