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Doubles in session


Current system
18439-0649
YSC 133
HD 173093


Nearby doubles
7' : 18440-0654
J 2919

9' : 18442-0656
MAY9001

11' : 18432-0650
A 89

19' : 18446-0636
J 2674

23' : 18452-0658
J 105

23' : 18427-0634
DAM 115

23' : 18426-0635
J 2524

24' : 18427-0635
J 2525

32' : 18453-0628
J 3271

33' : 18455-0627
J 3272AB

39' : 18423-0720
HDS2649

43' : 18464-0630
J 2230AB

45' : 18460-0614
DAM 118AB

46' : 18409-0641
KPP2774

46' : 18424-0727
J 2523

47' : 18406-0707
J 2673

48' : 18469-0631
J 2231AB

49' : 18413-0727
J 1748

49' : 18445-0737
RST4595AB

50' : 18416-0723
J 2917

51' : 18444-0739
TDT1023

55' : 18463-0729
DAM 119

57' : 18463-0734
J 2923

60' : 18477-0630
J 2233

68' : 18472-0607
J 1634

78' : 18489-0627
A 91



Selections
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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.

18439-0649 YSC 133 (HD 173093)

 
 
18h 43m 51.22s -06° 49' 04.8" P.A. 245.00 sep 0.0 mag 6.70,7.60 Sp F7V dist. 73.8 pc (240.74 l.y.)
 
 
Coord 2000 18439-0649 Discov num YSC 133 Comp Coord arcsec 2000 18 43 51.22 -06 49 04.8
Date first 2008 Date last 2021 Obs 22
Pa first 171 Pa last 245.3 P.A. Now (θ) 167.5°
Sep first 0.0 Sep last 0.046 Sep. Now (ρ) 0.033"
Mag pri 6.70 Mag sec 7.60 delta mag (ΔM) 0.9 Spectral class F7V (yellow-white)
Pri motion ra +030 Sec motion ra
Pri motion dec -045 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173093 Constellation Scutum SAO 142557 HIP 91880
Tycho2 5125-00544-1 Gaia DR2 4253157958461105664 HD 173093 HR 7034
GC 25617 BD BD-06 4859 Distance 73.8 Distance ly 240.74
 
 
ORBITAL ELEMENTS
 
 
Period (P)2642.5d (7.23y)± 1.5 Periastron (T)55470.035d (2010.748y)± 0.63 Semi-major axis (a)80.09m± 0.99
Eccentricity (e)0.6109± 0.0013 Inclination (i)104.55°± 0.27 Longitude of periastron (ω)254.98°± 0.17
Node (Ω)286.62°± 0.66 Notes ReferenceHor2021b
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 240.2 0.043
2001-01-01 186.6 0.031
2002-01-01 136.1 0.045
2003-01-01 111.0 0.049
2004-01-01 290.7 0.048
2005-01-01 276.5 0.079
2006-01-01 265.5 0.070
2007-01-01 247.2 0.049
2008-01-01 202.3 0.031
2009-01-01 144.4 0.040
2010-01-01 116.6 0.053
2011-01-01 302.0 0.026
2012-01-01 279.0 0.077
2013-01-01 268.4 0.074
2014-01-01 252.9 0.054
2015-01-01 216.7 0.034
2016-01-01 154.8 0.036
2017-01-01 122.0 0.052
2018-01-01 53.3 0.010
2019-01-01 281.7 0.072
2020-01-01 271.0 0.077
2021-01-01 257.5 0.059
2022-01-01 228.6 0.037
2023-01-01 167.5 0.033
2024-01-01 127.7 0.050
2025-01-01 100.3 0.033
2026-01-01 284.8 0.065
2027-01-01 273.5 0.078
2028-01-01 261.4 0.064
2029-01-01 238.1 0.042
2030-01-01 182.5 0.031


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


 
  


wds18439-0649d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18439-0649 YSC 133 (HD 173093) : NOTES
 
 
discov_num notes refcode
YSC 133 A first orbit for this system was reported recently in Tokovinin et Tok2015c
al. (2015), but those authors assumed a quadrant flip of one data
point taken by Horch et al. (2008). That was not an unreasonable Hor2008
assumption based on the relatively small magnitude difference, but the
points presented here give support to an "alternate" orbit where no
quadrant flips are needed and the period is about half of that derived
in the earlier calculation. Given the revised Hipparcos parallax of
13.55 +/- 0.43 mas, the new orbit gives a mass sum of 3.5 +/- 1.0Msun,
which is somewhat high for a system of composite spectral type F7, but
with substantial uncertainty at this stage. In contrast, the Tokovinin
orbit gives a mass sum of about 1 Msun, which would seem to be too low
by roughly the same amount. Hor2015b
 
 
REFERENCES
 
 
refcode metd author reference
Hor2008 S j Horch, E.P., van Altena, W.F., Cyr, W.M., Jr., Kinsman-Smith, L., Srivastava, A., 2008AJ....136..312H
Hor2008 +orb & Zhou, J.
Hor2008 AJ 136, 312, 2008
Hor2015b S j Horch, E.P., van Belle, G.T., Davidson, J.W., Jr., Ciastko, L.A., Everett, M.E., & 2015AJ....150..151H
Hor2015b Bjorkman, K.S.
Hor2015b AJ 150, 151, 2015
Hor2021b S Horch, E.P., Broderick, K.G., Casetti-Dinescu, D.I., Henry, T.J., Fekel, F.C., 2021AJ....161..295H
Hor2021b Mutterspaugh, M.W., Willmarth, D.W., Winters, J.G., van Belle, G.T., Clark, C.A. &
Hor2021b Everett, M.E.
Hor2021b AJ 161, 295, 2021
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 YSC Yale-Southern Connecticut (from additional DD list - see HOR)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18439-0649 YSC 133 2008 1 171 0.0 6.70 7.60 F7V D 184351.22-064904.8
18439-0649 YSC 133 2012 3 275 0.1 6.70 7.60 F7V D 184351.22-064904.8
18439-0649 YSC 133 2013 4 259 0.1 6.70 7.60 F7V 184351.22-064904.8
18439-0649 YSC 133 2014 5 248 0.0 6.70 7.60 F7V O 184351.22-064904.8
18439-0649 YSC 133 2015 10 169 0.0 6.70 7.60 F7V O 184351.22-064904.8
18439-0649 YSC 133 2017 11 117 0.1 6.70 7.60 F7V NO 184351.22-064904.8
18439-0649 YSC 133 2018 14 286 0.1 6.70 7.60 F7V NO 184351.22-064904.8
18439-0649 YSC 133 2019 15 279 0.1 6.70 7.60 F7V NO 184351.22-064904.8
18439-0649 YSC 133 2020 18 262 0.1 6.70 7.60 F7V NO 184351.22-064904.8
18439-0649 YSC 133 2021 22 245 0.0 6.70 7.60 F7V NO 184351.22-064904.8

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

 
 
WDS 18439-0649 YSC 133 (HD 173093) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18439-0649 YSC 133 (HD 173093) : MEASURES
 
 
No records found.

 
 
WDS 18439-0649 (HD 173093) : VIRTUAL EYEPIECE
 
 

18439-0649 YSC 133A mag 6.7 Sp F7V 18439-0649 YSC 133B mag 7.6 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 18439-0649 (HD 173093) : ALADIN DSS IMAGE @ 18h 43m 51.22s -06° 49' 04.8"
 
 
 
 
WDS 18439-0649 YSC 133 (HD 173093) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18439-0649 YSC 133 distance=0' 18440-0654 J 2919 distance=7' 18442-0656 MAY9001 distance=9' 18432-0650 A 89 distance=11' 18446-0636 J 2674 distance=19' 18452-0658 J 105 distance=23' 18427-0634 DAM 115 distance=23' 18426-0635 J 2524 distance=23' 18427-0635 J 2525 distance=24' 18453-0628 J 3271 distance=32' 18455-0627 DAM 117BC distance=33' 18455-0627 J 3272AB distance=33' 18423-0720 HDS2649 distance=39' 18464-0630 J 2230AB distance=43' 18464-0630 J 2676AC distance=43' 18460-0614 DAM 118CD distance=45' 18460-0614 DAM 118AB distance=45' 18460-0614 J 2922AC distance=45' 18409-0641 KPP2774 distance=46' 18424-0727 J 2523 distance=46' 18406-0707 J 2673 distance=47' 18469-0631 DAM 121BC distance=48' 18469-0631 J 2231AB distance=48' 18413-0727 J 1748 distance=49' 18445-0737 RST4595AB distance=49' 18445-0737 HDS2654AC distance=49' 18416-0723 J 2917 distance=50' 18444-0739 TDT1023 distance=51' 18463-0729 DAM 119 distance=55' 18463-0734 J 2923 distance=57' 18477-0630 J 2233 distance=60' 18472-0607 J 1634 distance=68' 18489-0627 A 91 distance=78' 18397-0737 DAM 114 distance=79' 18396-0738 J 2520 distance=80' 18490-0711 TDT1069 distance=80' 18425-0807 BRT 483AB distance=81' 18425-0807 FYM 254AC distance=81' 18400-0747 STF2350 distance=82' 18434-0814 SLE 236 distance=86' 18487-0600 STF2391AB distance=87' 18487-0600 STF2391BC distance=87' 18380-0648 TOK 32AB distance=88' 18380-0648 LDS5239AC distance=88' 18435-0817 J 104AB distance=88' 18435-0817 J 104AC distance=88' 18435-0817 KUI 87AD distance=88' 18435-0817 SLE 237AE distance=88' 18435-0817 SLE 237AF distance=88' 18441-0817 SLE 238 distance=88' 18466-0807 RST4597 distance=89' 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 18439-0649 YSC 133 245 0.0
Show 18440-0654 J 2919 114 7.1 7
Show 18442-0656 MAY9001 133 4.2 9
Show 18432-0650 A 89 141 5.3 11
Show 18446-0636 J 2674 128 5.6 19
Show 18452-0658 J 105 348 7.4 23
Show 18427-0634 DAM 115 115 4.6 23
Show 18426-0635 J 2524 246 4.6 23
Show 18427-0635 J 2525 305 6.6 24
Show 18453-0628 J 3271 150 3.6 32
Show 18455-0627 DAM 117 BC 274 6.3 33
Show 18455-0627 J 3272 AB 180 3.9 33
Show 18423-0720 HDS2649 125 0.1 39
Show 18464-0630 J 2230 AB 10 3.5 43
Show 18464-0630 J 2676 AC 275 24.3 43
Show 18460-0614 DAM 118 CD 117 7.2 45
Show 18460-0614 DAM 118 AB 162 4.6 45
Show 18460-0614 J 2922 AC 130 7.5 45
Show 18409-0641 KPP2774 9 35.1 46
Show 18424-0727 J 2523 127 3.2 46
Show 18406-0707 J 2673 79 5.0 47
Show 18469-0631 DAM 121 BC 128 4.8 48
Show 18469-0631 J 2231 AB 170 5.9 48
Show 18413-0727 J 1748 331 6.0 49
Show 18445-0737 RST4595 AB 74 2.1 49
Show 18445-0737 HDS2654 AC 321 13.8 49
Show 18416-0723 J 2917 109 9.9 50
Show 18444-0739 TDT1023 285 1.0 51
Show 18463-0729 DAM 119 10 6.4 55
Show 18463-0734 J 2923 316 8.9 57
Show 18477-0630 J 2233 238 3.0 60
Show 18472-0607 J 1634 6 7.4 68
Show 18489-0627 A 91 101 0.8 78
Show 18397-0737 DAM 114 98 4.2 79
Show 18396-0738 J 2520 137 2.5 80
Show 18490-0711 TDT1069 129 0.5 80
Show 18425-0807 BRT 483 AB 49 4.1 81
Show 18425-0807 FYM 254 AC 105 7.7 81
Show 18400-0747 STF2350 191 16.4 82
Show 18434-0814 SLE 236 295 10.6 86
Show 18487-0600 STF2391 AB 332 37.7 87
Show 18487-0600 STF2391 BC 124 14.4 87
Show 18380-0648 TOK 32 AB 32 3.8 88
Show 18380-0648 LDS5239 AC 79 35.7 88
Show 18435-0817 J 104 AB 98 14.6 88
Show 18435-0817 J 104 AC 195 39.3 88
Show 18435-0817 KUI 87 AD 309 16.1 88
Show 18435-0817 SLE 237 AE 98 43.3 88
Show 18435-0817 SLE 237 AF 143 78.9 88
Show 18441-0817 SLE 238 68 11.7 88
Show 18466-0807 RST4597 312 0.4 89

 
 
WDS 18439-0649 : COMPONENTS
 
 
  A
B pa=245.1°
sep=0.05"
 
 
18439-0649 A
 
 
Componente originario normalizzato AB Name HD 173093 Coord arcsec 2000 184351.22-064904.8 Mag 6.7
Spectral class F7V (yellow-white) PmRA 30.00 PmDE -45.0 SAO 142557
HIP 91880 Tycho2 5125-00544-1 HD 173093 HR 7034
GC 25617 BD BD-06 4859
Tycho2
Tycho2 5125-00544-1 Pflag RAmdeg 280.96347067 DEmdeg -6.81811951
PmRA 28.4 PmDE -44.5 E RAmdeg 3 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.64 EpDEm 1991.43
Num 13 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 1.0 BTmag 6.840 E BTmag 0.015 VTmag 6.352
E VTmag 0.010 Prox 999 TYC T HIP 91880
CCDM RAdeg 280.96340583 DEdeg -6.81801806 EpRA 1990 1.85
EpDE 1990 1.78 E RAdeg 3.4 E DEdeg 4.1 Posflg
Corr -0.1
SAO
SAO 142557 DelFlag RA1950 PmRA1950 0.003
DE1950 PmDE1950 -0.056 Vmag 6.3 SpType F5
Double code Source 70 CatNum 25617 DM BD-06 4859
DMcomp BDsup HD 173093 M HD 0
GC 25617 RA1950rad 4.89197793 DE1950rad -0.11988802 PmRA2000 0.0032
PmDE2000 -0.055
Hipparcos
Catalog H HIP 91880 Proxy RAhms 18 43 51.22
DEdms -06 49 04.8 Vmag 6.3 VarFlag R Vmag H
RAdeg 280.963 DEdeg -6.81801 AstroRef Plx 14.36
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 173093 BD BD-06 4859
CD CP Dm number -06 4859 VIred 0.54
SpType F7V R SpType Coord arcsec 2000 184351.22-064904.8
Hipparcos 2
HIP 91880 Sn 5 So 0 Nc 1
RArad 4.9037364797 DErad -0.1189967455 Plx 13.55 PmRA 30.26
PmDE -44.65 E RArad 0.38 E DErad 0.21 E Plx 0.43
E pmRA 0.42 E pmDE 0.3 Hpmag 6.4009 E Hpmag 0.0005
SHp 0.006 VA 0 BV 0.479 E BV 0.004
VI 0.55
 
 
18439-0649 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184351.22-064904.8 Mag 7.6 Calc delta mag 0.9
Calc coord yes