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Current system
18447-2548
SEE 358
HD 173099


Nearby doubles
6' : 18444-2546
RST3196

44' : 18465-2511
RST3197

44' : 18416-2557
BRT3074

45' : 18422-2617
RST3190

48' : 18448-2501
CHR 78

52' : 18459-2637
J 2229

59' : 18489-2603
B 406

64' : 18456-2651
I 1382

68' : 18497-2538
B 407

69' : 18399-2531
ARG 32AB

73' : 18457-2659
OCC9185

79' : 18437-2430
B 401

80' : 18401-2638
B 397

83' : 18434-2427
RST3193

86' : 18413-2436
B 399

87' : 18474-2430
BRT3076

89' : 18512-2601
OCC 66

91' : 18383-2525
HO 436

95' : 18502-2647
J 1637

96' : 18463-2721
B 405

97' : 18453-2411
ALD 92

99' : 18506-2646
B 409

100' : 18512-2500
B 410

106' : 18371-2612
VVV 58

109' : 18517-2641
RST2079

111' : 18368-2617
RST3187AB



Selections
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Binary Systems
Triple Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18447-2548 SEE 358 (HD 173099)

 
 
18h 44m 44.48s -25° 47' 51.4" P.A. 69.00 sep 1.2 mag 8.41,8.82 Sp F7/8V dist. 55.01 pc (179.44 l.y.)
 
 
Coord 2000 18447-2548 Discov num SEE 358 Comp Coord arcsec 2000 18 44 44.48 -25 47 51.4
Date first 1897 Date last 2016 Obs 41
Pa first 30 Pa last 68.7 P.A. Now (θ) 68.7°
Sep first 1.9 Sep last 1.233 Sep. Now (ρ) 1.233"
Mag pri 8.41 Mag sec 8.82 delta mag (ΔM) 0.41 Spectral class F7/8V (yellow-white)
Pri motion ra +011 Sec motion ra +011
Pri motion dec -120 Sec motion dec -120
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173099 Constellation Sagittarius HIP 91967 Tycho2 6863-00606-1
Gaia DR2 4073370352444789376 HD 173099 ADS 11622 CD CD-2513391
CP CP-25 6599 Distance 55.01 Distance ly 179.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)1155.4735y± 600.2708 Periastron (T)2065.1486y± 62.5543 Semi-major axis (a)3.44935a± 1.88456
Eccentricity (e)0.86024± 0.18937 Inclination (i)66.992°± 13.763 Longitude of periastron (ω)73.173°± 18.219
Node (Ω)96.441°± 59.063 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 62.1 1.319
2001 62.5 1.314
2002 63.0 1.309
2003 63.4 1.304
2004 63.8 1.299
2005 64.3 1.294
2006 64.7 1.289
2007 65.2 1.284
2008 65.6 1.278
2009 66.1 1.273
2010 66.5 1.267
2011 67.0 1.262
2012 67.4 1.256
2013 67.9 1.250
2014 68.4 1.243
2015 68.9 1.237
2016 69.4 1.231
2017 69.8 1.224
2018 70.3 1.217
2019 70.8 1.210
2020 71.3 1.203
2021 71.9 1.196
2022 72.4 1.188
2023 72.9 1.180
2024 73.4 1.172
2025 74.0 1.164
2026 74.5 1.155
2027 75.1 1.146
2028 75.7 1.137
2029 76.2 1.128
2030 76.8 1.118


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


 
  


wds18447-2548a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18447-2548 SEE 358 (HD 173099) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
 
 
DISCOVERER
 
 
idgroup discov author
1 SEE See, T.J.J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18447-2548 SEE 358 2005 36 66 1.2 8.41 8.82 F7/8V D 184444.48-254751.4
18447-2548 SEE 358 2009 37 65 1.3 8.41 8.82 F7/8V D 184444.48-254751.4
18447-2548 SEE 358 2014 39 68 1.2 8.41 8.82 F7/8V D 184444.48-254751.4
18447-2548 SEE 358 2016 40 69 1.2 8.41 8.82 F7/8V 184444.48-254751.4

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

 
 
WDS 18447-2548 SEE 358 (HD 173099) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18447-2548 SEE 358 (HD 173099) : MEASURES
 
 
No records found.

 
 
WDS 18447-2548 (HD 173099) : VIRTUAL EYEPIECE
 
 

18447-2548 SEE 358A mag 8.41 Sp F7/8V 18447-2548 SEE 358B sep 1.1 P.A. 66.60 mag 8.82 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 18447-2548 (HD 173099) : ALADIN DSS IMAGE @ 18h 44m 44.48s -25° 47' 51.4"
 
 
 
 
WDS 18447-2548 SEE 358 (HD 173099) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18447-2548 SEE 358 distance=0' 18444-2546 RST3196 distance=6' 18465-2511 RST3197 distance=44' 18416-2557 BRT3074 distance=44' 18422-2617 RST3190 distance=45' 18448-2501 CHR 78 distance=48' 18459-2637 J 2229 distance=52' 18489-2603 B 406 distance=59' 18456-2651 I 1382 distance=64' 18497-2538 B 407 distance=68' 18399-2531 ARG 32AB distance=69' 18399-2531 ARG 32AC distance=69' 18399-2531 ARG 32AD distance=69' 18399-2531 OCC9182Aa,Ab distance=69' 18457-2659 OCC9185 distance=73' 18437-2430 B 401 distance=79' 18401-2638 B 397 distance=80' 18434-2427 RST3193 distance=83' 18413-2436 B 399 distance=86' 18474-2430 BRT3076 distance=87' 18512-2601 OCC 66 distance=89' 18383-2525 HO 436 distance=91' 18502-2647 J 1637 distance=95' 18463-2721 B 405 distance=96' 18453-2411 ALD 92 distance=97' 18506-2646 B 409 distance=99' 18512-2500 B 410 distance=100' 18371-2612 VVV 58 distance=106' 18517-2641 RST2079 distance=109' 18368-2617 RST3187AB distance=111' 18368-2617 RST3187AC distance=111' 18521-2452 WFC 214 distance=115' 18510-2431 J 1751 distance=115' 18536-2536 RST3202 distance=121' 18496-2736 OCC 153 distance=127' 18354-2607 TDT 949 distance=127' 18356-2617 B 396AB distance=127' 18356-2617 OCC9050Ba,Bb distance=127' 18423-2344 ARA2244 distance=128' 18464-2755 RST2073 distance=129' 18544-2543 RST3204 distance=131' 18400-2743 SKF2132 distance=131' 18411-2345 ARA2242 distance=133' 18389-2736 RST2069 distance=134' 18427-2336 BRT1542 distance=136' 18498-2350 TNN 13AB distance=137' 18498-2350 TNN 13AC distance=137' 18534-2435 OCC 54 distance=138' 18471-2331 LDS4798 distance=141' 18442-2325 RST3195 distance=144' 18419-2329 ARA2243 distance=145' 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 18447-2548 SEE 358 69 1.2
Show 18444-2546 RST3196 71 0.2 6
Show 18465-2511 RST3197 156 0.3 44
Show 18416-2557 BRT3074 25 4.7 44
Show 18422-2617 RST3190 152 0.3 45
Show 18448-2501 CHR 78 192 0.1 48
Show 18459-2637 J 2229 26 3.7 52
Show 18489-2603 B 406 315 1.7 59
Show 18456-2651 I 1382 200 0.4 64
Show 18497-2538 B 407 358 0.8 68
Show 18399-2531 ARG 32 AB 220 7.0 69
Show 18399-2531 ARG 32 AC 285 53.2 69
Show 18399-2531 ARG 32 AD 217 80.2 69
Show 18399-2531 OCC9182 Aa,Ab -1 0.8 69
Show 18457-2659 OCC9185 10 0.2 73
Show 18437-2430 B 401 123 0.5 79
Show 18401-2638 B 397 193 1.2 80
Show 18434-2427 RST3193 190 0.6 83
Show 18413-2436 B 399 49 3.5 86
Show 18474-2430 BRT3076 94 3.5 87
Show 18512-2601 OCC 66 -1 0.1 89
Show 18383-2525 HO 436 178 4.1 91
Show 18502-2647 J 1637 16 5.2 95
Show 18463-2721 B 405 136 0.5 96
Show 18453-2411 ALD 92 131 5.7 97
Show 18506-2646 B 409 258 5.2 99
Show 18512-2500 B 410 190 0.8 100
Show 18371-2612 VVV 58 171 1.7 106
Show 18517-2641 RST2079 197 1.9 109
Show 18368-2617 RST3187 AB 201 0.1 111
Show 18368-2617 RST3187 AC 41 12.7 111
Show 18521-2452 WFC 214 262 9.3 115
Show 18510-2431 J 1751 281 13.7 115
Show 18536-2536 RST3202 50 0.2 121
Show 18496-2736 OCC 153 -1 0.1 127
Show 18354-2607 TDT 949 91 0.7 127
Show 18356-2617 B 396 AB 218 1.7 127
Show 18356-2617 OCC9050 Ba,Bb -1 0.0 127
Show 18423-2344 ARA2244 225 10.4 128
Show 18464-2755 RST2073 149 0.4 129
Show 18544-2543 RST3204 225 2.7 131
Show 18400-2743 SKF2132 237 12.4 131
Show 18411-2345 ARA2242 118 6.6 133
Show 18389-2736 RST2069 123 1.7 134
Show 18427-2336 BRT1542 282 6.4 136
Show 18498-2350 TNN 13 AB 311 6.2 137
Show 18498-2350 TNN 13 AC 234 8.3 137
Show 18534-2435 OCC 54 -1 0.1 138
Show 18471-2331 LDS4798 241 5.7 141
Show 18442-2325 RST3195 191 1.2 144
Show 18419-2329 ARA2243 105 8.6 145

 
 
WDS 18447-2548 : COMPONENTS
 
 
  A
B pa=66.6°
sep=1.13"
 
 
18447-2548 A
 
 
Componente originario normalizzato AB Name HD 173099 Coord arcsec 2000 184444.48-254751.4 Mag 8.41
Spectral class F7/8V (yellow-white) PmRA 11.00 PmDE -120.0 HIP 91967
Tycho2 6863-00606-1 HD 173099 CD CD-2513391 CP CP-25 6599
Tycho2
Tycho2 6863-00606-1 Pflag P RAmdeg 281.18534235 DEmdeg -25.79762437
PmRA 10.5 PmDE -120.4 E RAmdeg 7 E DEmdeg 9
E pmRA 3.1 E pmDE 2.8 EpRAm 1991.71 EpDEm 1991.51
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.6 Q pmRA 1.1
Q pmDE 0.5 BTmag 8.975 E BTmag 0.019 VTmag 8.406
E VTmag 0.014 Prox 13 TYC T HIP 91967
CCDM A RAdeg 281.18519917 DEdeg -25.79740778 EpRA 1990 1.78
EpDE 1990 1.64 E RAdeg 6.6 E DEdeg 9.0 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 91967 Proxy H RAhms 18 44 44.45
DEdms -25 47 50.6 Vmag 7.78 VarFlag R Vmag G
RAdeg 281.185 DEdeg -25.7974 AstroRef A Plx 17.98
CCDM 18447-2548 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 58 Rho 1.342 HD 173099 BD
CD CD-2513391 CP CP-25 6599 Dm number -2513391 VIred 0.62
SpType F7/F8V R SpType Coord arcsec 2000 184444.45-254750.6
Hipparcos 2
HIP 91967 Sn 15 So 3 Nc 2
RArad 4.9076075281 DErad -0.4502495004 Plx 18.18 PmRA 6.94
PmDE -119.43 E RArad 1.07 E DErad 0.67 E Plx 1.22
E pmRA 1.35 E pmDE 0.83 Hpmag 7.8953 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.549 E BV 0.015
VI 0.62
CCDM
Ccdm 18447-2548 RComp Comp A Note1
Note2 Discov num DRAs 2.44 DDEs 8.1
R dRAs 32 Year Theta Rho
Obs 2 Vmag 8.3 Sp F8 PmNote *
PmRA 3 PmDE -121 Dm number -2513391 Cat1 CD
Name2 Cat2 HD 173099 M HD
ADS BDS A11622 M ADS BDS N IDS IDS 18386S2554A
HIC 91967
 
 
18447-2548 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184444.56-254751.0 Mag 8.82 PmRA 11.00
PmDE -120.0 HIP 91967 Tycho2 6863-00606-2 Calc delta mag 0.41
Calc coord yes
Tycho2
Tycho2 6863-00606-2 Pflag P RAmdeg 281.18534235 DEmdeg -25.79762437
PmRA 10.5 PmDE -120.4 E RAmdeg 7 E DEmdeg 9
E pmRA 3.1 E pmDE 2.8 EpRAm 1991.71 EpDEm 1991.51
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.6 Q pmRA 1.1
Q pmDE 0.5 BTmag 9.439 E BTmag 0.021 VTmag 8.825
E VTmag 0.017 Prox 13 TYC HIP 91967
CCDM B RAdeg 281.18555528 DEdeg -25.79721556 EpRA 1990 1.77
EpDE 1990 1.63 E RAdeg 9.0 E DEdeg 12.6 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 91967 Proxy H RAhms 18 44 44.45
DEdms -25 47 50.6 Vmag 7.78 VarFlag R Vmag G
RAdeg 281.185 DEdeg -25.7974 AstroRef A Plx 17.98
CCDM 18447-2548 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 58 Rho 1.342 HD 173099 BD
CD CD-2513391 CP CP-25 6599 Dm number -2513391 VIred 0.62
SpType F7/F8V R SpType Coord arcsec 2000 184444.45-254750.6
Hipparcos 2
HIP 91967 Sn 15 So 3 Nc 2
RArad 4.9076075281 DErad -0.4502495004 Plx 18.18 PmRA 6.94
PmDE -119.43 E RArad 1.07 E DErad 0.67 E Plx 1.22
E pmRA 1.35 E pmDE 0.83 Hpmag 7.8953 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.549 E BV 0.015
VI 0.62
CCDM
Ccdm 18447-2548 RComp Comp B Note1
Note2 Discov num SEE 358 DRAs DDEs
R dRAs Year 1953 Theta 046 Rho 1.4
Obs 19 Vmag 8.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11622 M ADS BDS N IDS IDS 18386S2554B
HIC 91967