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Doubles in session


Current system
18550+3053
A 258
HD 175612


Nearby doubles
16' : 18541+3103
ES 2421

27' : 18530+3058
LEP 159

31' : 18569+3112
ES 2422

34' : 18546+3020
HDS2681

43' : 18528+3125
A 257AB

43' : 18518+3105
COU1012

45' : 18537+3012
MLB 651

48' : 18537+3008
TDT1118

50' : 18526+3131
SEI 576

50' : 18579+3020
COU1017

51' : 18548+3002
LSC 84AB

60' : 18582+3011
ES 2670AB

63' : 18598+3055
LEP 160

71' : 18564+2944
COU1014

72' : 18525+2949
KPP4126

76' : 18514+2954
TDT1087

79' : 19002+3122
HLM 14

83' : 18542+3214
HU 1294

83' : 18555+3215
COU1013

84' : 18576+3209
A 260

85' : 18501+3149
A 256

86' : 18490+3017
TDT1067

88' : 18579+3212
BKO 55

89' : 18543+3221
KPP4127

89' : 18597+2949
COU1019AB

90' : 19013+3132
LEP 161



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.

18550+3053 A 258 (HD 175612)

 
 
18h 54m 59.91s +30° 52' 45.5" P.A. 228.00 sep 0.3 mag 8.86,9.88 Sp G0
 
 
Coord 2000 18550+3053 Discov num A   258 Comp Coord arcsec 2000 18 54 59.91 +30 52 45.5
Date first 1901 Date last 2018 Obs 32
Pa first 268 Pa last 228.1 P.A. Now (θ) 228.1°
Sep first 0.3 Sep last 0.32 Sep. Now (ρ) 0.32"
Mag pri 8.86 Mag sec 9.88 delta mag (ΔM) 1.02 Spectral class G0 (yellow)
Pri motion ra +009 Sec motion ra +009
Pri motion dec -014 Sec motion dec -014
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 175612 Constellation Lyra SAO 67567 Tycho2 2639-00389-1
Gaia DR2 2041919953234272768 HD 175612 ADS 11837
 
 
ORBITAL ELEMENTS
 
 
Period (P)1353y Periastron (T)2007y Semi-major axis (a)1.52a
Eccentricity (e)0.67 Inclination (i)97° Longitude of periastron (ω)32°
Node (Ω)247° Notes ReferenceHrt2013c
Equinox2000 Last observation2007 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 244.5 0.478
2001 244.3 0.472
2002 244.0 0.465
2003 243.8 0.458
2004 243.5 0.450
2005 243.2 0.443
2006 242.9 0.435
2007 242.6 0.427
2008 242.3 0.418
2009 242.0 0.410
2010 241.7 0.401
2011 241.3 0.392
2012 240.9 0.382
2013 240.6 0.373
2014 240.1 0.363
2015 239.7 0.353
2016 239.3 0.343
2017 238.8 0.333
2018 238.2 0.322
2019 237.7 0.312
2020 237.1 0.301
2021 236.5 0.290
2022 235.8 0.279
2023 235.0 0.268
2024 234.2 0.257
2025 233.4 0.246
2026 232.4 0.235
2027 231.3 0.223
2028 230.2 0.212
2029 228.8 0.201
2030 227.4 0.189


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


 
  


wds18550%2B3053a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18550+3053 A 258 (HD 175612) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hrt2013c orb - Hartkopf, W.I. & Harshaw, R. 2013IAUDS.181Q...1H
Hrt2013c Inf. Circ. 181, 1, 2013
 
 
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
18550+3053 A 258 1995 25 242 0.5 8.86 9.88 G0 185459.91+305245.5
18550+3053 A 258 2005 26 244 0.4 8.86 9.88 G0 185459.91+305245.5
18550+3053 A 258 2007 28 242 0.4 8.86 9.88 G0 185459.91+305245.5
18550+3053 A 258 2016 29 236 0.3 8.86 9.88 G0 O 185459.91+305245.5
18550+3053 A 258 2018 30 228 0.3 8.86 9.88 G0 O 185459.91+305245.5

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

 
 
WDS 18550+3053 A 258 (HD 175612) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18550+3053 A 258 (HD 175612) : MEASURES
 
 
No records found.

 
 
WDS 18550+3053 (HD 175612) : VIRTUAL EYEPIECE
 
 

18550+3053 A 258A mag 8.86 Sp G0 18550+3053 A 258B sep 0.3 P.A. 223.70 mag 9.88 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 18550+3053 (HD 175612) : ALADIN DSS IMAGE @ 18h 54m 59.91s +30° 52' 45.5"
 
 
 
 
WDS 18550+3053 A 258 (HD 175612) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18550+3053 A 258 distance=0' 18541+3103 ES 2421 distance=16' 18530+3058 LEP 159 distance=27' 18569+3112 ES 2422 distance=31' 18546+3020 HDS2681 distance=34' 18528+3125 A 257AB distance=43' 18528+3125 A 257A,CD distance=43' 18518+3105 COU1012 distance=43' 18528+3125 A 257EF distance=44' 18528+3125 A 257CD,EF distance=44' 18528+3125 A 257CD distance=44' 18537+3012 MLB 651 distance=45' 18537+3008 TDT1118 distance=48' 18526+3131 SEI 576 distance=50' 18579+3020 COU1017 distance=50' 18548+3002 LSC 84AB distance=51' 18548+3002 LSC 84AC distance=51' 18582+3011 COU1018Aa,Ab distance=60' 18582+3011 ES 2670AB distance=60' 18598+3055 LEP 160 distance=63' 18564+2944 COU1014 distance=71' 18525+2949 KPP4126 distance=72' 18514+2954 TDT1087 distance=76' 19002+3122 HLM 14 distance=79' 18542+3214 HU 1294 distance=83' 18555+3215 COU1013 distance=83' 18576+3209 A 260 distance=84' 18501+3149 A 256 distance=85' 18490+3017 TDT1067 distance=86' 18579+3212 BKO 55 distance=88' 18543+3221 KPP4127 distance=89' 18597+2949 COU1019AB distance=89' 18597+2949 COU1019AC distance=89' 19013+3132 LEP 161 distance=90' 18486+3016 TDT1064 distance=90' 18488+3136 LDS1015 distance=91' 18501+2949 HJ 1352 distance=91' 18486+3132 TDT1063AB distance=91' 18486+3132 TDT1063AC distance=91' 18582+3216 GYL 12AB distance=94' 18582+3216 BKO 56AC distance=94' 19014+3138 TDT1185 distance=94' 18508+2936 TDT1082 distance=95' 18594+2936 STF2430 distance=96' 18582+2924 AG 367 distance=98' 18555+2914 STF2419 distance=100' 19028+3123 STF2441AB distance=104' 19028+3123 STF2441AC distance=104' 18472+3125 STF2397 distance=105' 18468+3055 BRT 261 distance=106' 18589+3229 BU 649 distance=108' 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 18550+3053 A 258 228 0.3
Show 18541+3103 ES 2421 69 7.7 16
Show 18530+3058 LEP 159 357 10.5 27
Show 18569+3112 ES 2422 178 5.7 31
Show 18546+3020 HDS2681 282 4.4 34
Show 18528+3125 A 257 AB 94 0.9 43
Show 18528+3125 A 257 A,CD 324 82.4 43
Show 18518+3105 COU1012 238 0.4 43
Show 18528+3125 A 257 EF 231 6.2 44
Show 18528+3125 A 257 CD,EF 225 28.0 44
Show 18528+3125 A 257 CD 262 0.7 44
Show 18537+3012 MLB 651 66 4.6 45
Show 18537+3008 TDT1118 161 0.6 48
Show 18526+3131 SEI 576 297 16.0 50
Show 18579+3020 COU1017 185 1.8 50
Show 18548+3002 LSC 84 AB 22 0.0 51
Show 18548+3002 LSC 84 AC 138 0.3 51
Show 18582+3011 COU1018 Aa,Ab 210 3.7 60
Show 18582+3011 ES 2670 AB 71 11.2 60
Show 18598+3055 LEP 160 63 5.4 63
Show 18564+2944 COU1014 46 0.2 71
Show 18525+2949 KPP4126 220 1.4 72
Show 18514+2954 TDT1087 204 1.6 76
Show 19002+3122 HLM 14 137 12.7 79
Show 18542+3214 HU 1294 119 1.6 83
Show 18555+3215 COU1013 147 0.6 83
Show 18576+3209 A 260 246 0.9 84
Show 18501+3149 A 256 60 2.9 85
Show 18490+3017 TDT1067 342 2.2 86
Show 18579+3212 BKO 55 161 15.2 88
Show 18543+3221 KPP4127 303 1.5 89
Show 18597+2949 COU1019 AB 350 0.4 89
Show 18597+2949 COU1019 AC 52 5.8 89
Show 19013+3132 LEP 161 114 9.1 90
Show 18486+3016 TDT1064 163 0.5 90
Show 18488+3136 LDS1015 301 110.3 91
Show 18501+2949 HJ 1352 251 13.5 91
Show 18486+3132 TDT1063 AB 106 0.1 91
Show 18486+3132 TDT1063 AC 142 1.1 91
Show 18582+3216 GYL 12 AB 146 20.3 94
Show 18582+3216 BKO 56 AC 19 11.3 94
Show 19014+3138 TDT1185 114 1.9 94
Show 18508+2936 TDT1082 187 0.6 95
Show 18594+2936 STF2430 187 1.5 96
Show 18582+2924 AG 367 297 4.8 98
Show 18555+2914 STF2419 177 3.4 100
Show 19028+3123 STF2441 AB 263 6.3 104
Show 19028+3123 STF2441 AC 135 101.2 104
Show 18472+3125 STF2397 269 3.9 105
Show 18468+3055 BRT 261 18 4.7 106
Show 18589+3229 BU 649 1 1.8 108

 
 
WDS 18550+3053 : COMPONENTS
 
 
  A
B pa=223.7°
sep=0.30"
 
 
18550+3053 A
 
 
Componente originario normalizzato AB Name HD 175612 Coord arcsec 2000 185459.91+305245.5 Mag 8.86
Spectral class G0 (yellow) PmRA 9.00 PmDE -14.0 SAO 67567
Tycho2 2639-00389-1 HD 175612 DM BD+30 3345
Tycho2
Tycho2 2639-00389-1 Pflag RAmdeg 283.74959559 DEmdeg 30.87928926
PmRA 9.4 PmDE -14.4 E RAmdeg 7 E DEmdeg 7
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.04 EpDEm 1991.08
Num 8 Q RAmdeg 0.7 Q DEmdeg 0.9 Q pmRA 0.8
Q pmDE 0.8 BTmag 9.107 E BTmag 0.017 VTmag 8.608
E VTmag 0.013 Prox 999 TYC T HIP
CCDM RAdeg 283.74957000 DEdeg 30.87932306 EpRA 1990 1.50
EpDE 1990 1.58 E RAdeg 6.9 E DEdeg 6.6 Posflg P
Corr 0.1
SAO
SAO 67567 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 -0.017 Vmag 8.5 SpType G0
Double code Source 6 CatNum 1785 DM BD+30 3345
DMcomp BDsup HD 175612 M HD 0
GC RA1950rad 4.94400151 DE1950rad 0.53781426 PmRA2000 0.0018
PmDE2000 -0.018
CCDM
Ccdm 18550+3053 RComp Comp A Note1
Note2 Discov num DRAs -0.17 DDEs -15.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp G0 PmNote *
PmRA 6 PmDE -28 Dm number +30 3345 Cat1 BD
Name2 +30 1785 Cat2 AGK2/3 HD 175612 M HD
ADS BDS A11837 M ADS BDS N IDS IDS 18512N3045A
HIC
 
 
18550+3053 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185459.89+305245.3 Mag 9.88 PmRA 9.00
PmDE -14.0 Calc delta mag 1.02 Calc coord yes
CCDM
Ccdm 18550+3053 RComp Comp B Note1
Note2 Discov num A 258 DRAs DDEs
R dRAs Year 1958 Theta 256 Rho 0.6
Obs 11 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11837 M ADS BDS N IDS IDS 18512N3045B
HIC