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Doubles in session


Current system
18273+2856
HO 433


Nearby doubles
18' : 18265+2842
HJ 1324

21' : 18280+2837
COU 638

25' : 18270+2832
MLB 648

36' : 18257+2828
TDT 858

45' : 18292+2933
HO 434

50' : 18249+2817
RAO 391

51' : 18298+2818
UC 3594

55' : 18269+2950
HJ 1325

56' : 18242+2818
A 244

57' : 18253+2805
HO 85AB

61' : 18227+2849
UC 3566

62' : 18271+2754
TDS 921

65' : 18292+2955
STF2327

67' : 18295+2955
STF2328AB

67' : 18238+2808
GRV1261

68' : 18306+2805
ES 476AB

68' : 18235+2810
JOD 15

70' : 18295+2959
KU 118

72' : 18268+3007
TDT 872

81' : 18332+2835
MLB 691

83' : 18220+2812
UC 3562

85' : 18252+3016
TDT 847

86' : 18251+3016
GIC 152

89' : 18212+2820
STF2312

91' : 18336+2934
RAO 393

91' : 18230+3007
HDS2599



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18273+2856 HO 433

 
 
18h 27m 17.52s +28° 55' 44.1" P.A. 328.00 sep 9.8 mag 8.61,13.00 Sp B8 dist. 314.47 pc (1025.8 l.y.)
 
 
Coord 2000 18273+2856 Discov num HO  433 Comp Coord arcsec 2000 18 27 17.52 +28 55 44.1
Date first 1890 Date last 2015 Obs 13
Pa first 327 Pa last 328.2 P.A. Now (θ) 328.2°
Sep first 9.1 Sep last 9.774 Sep. Now (ρ) 9.774"
Mag pri 8.61 Mag sec 13.00 delta mag (ΔM) 4.39 Spectral class B8 (blue-white)
Pri motion ra -002 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra SAO 86075 HIP 90445 Tycho2 2118-02613-1
Gaia DR2 4588061709735555072 HD 170263 BD BD+28 3002 Distance 314.47
Distance ly 1025.8
 
 
WDS 18273+2856 HO 433 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18273+2856 HO 433 1999 7 328 9.6 8.70 13.00 B8 D 182717.52+285544.1
18273+2856 HO 433 2002 8 328 9.8 8.70 13.00 B8 D 182717.52+285544.1
18273+2856 HO 433 2010 9 328 9.2 8.61 13.00 B8 182717.52+285544.1
18273+2856 HO 433 2015 9 328 9.8 8.61 13.00 B8 182717.52+285544.1

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

 
 
WDS 18273+2856 HO 433 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18273+2856 HO 433 : MEASURES
 
 
No records found.

 
 
WDS 18273+2856 : VIRTUAL EYEPIECE
 
 

18273+2856 HO 433A mag 8.61 Sp B8 18273+2856 HO 433B sep 9.4 P.A. 331.50 mag 13 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18273+2856 : ALADIN DSS IMAGE @ 18h 27m 17.52s +28° 55' 44.1"
 
 
 
 
WDS 18273+2856 HO 433 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18273+2856 HO 433 distance=0' 18265+2842 HJ 1324 distance=18' 18280+2837 COU 638 distance=21' 18270+2832 MLB 648 distance=25' 18257+2828 TDT 858 distance=36' 18292+2933 HO 434 distance=45' 18249+2817 RAO 391 distance=50' 18298+2818 UC 3594 distance=51' 18269+2950 HJ 1325 distance=55' 18242+2818 A 244 distance=56' 18253+2805 HDS2604Aa,Ab distance=57' 18253+2805 HO 85AB distance=57' 18227+2849 UC 3566 distance=61' 18271+2754 TDS 921 distance=62' 18292+2955 STF2327 distance=65' 18295+2955 STF2328AB distance=67' 18295+2955 WAL 91AC distance=67' 18238+2808 GRV1261 distance=67' 18306+2805 ES 476AB distance=68' 18306+2805 ES 476AC distance=68' 18235+2810 JOD 15 distance=68' 18295+2959 KU 118 distance=70' 18268+3007 TDT 872 distance=72' 18332+2835 MLB 691 distance=81' 18220+2812 UC 3562 distance=83' 18252+3016 TDT 847 distance=85' 18251+3016 GIC 152 distance=86' 18212+2820 STF2312 distance=89' 18336+2934 RAO 393 distance=91' 18230+3007 HDS2599 distance=91' 18230+2742 HJ 1322 distance=93' 18338+2816 MLB 568 distance=95' 18290+3029 TDT 901 distance=96' 18265+2721 BU 264 distance=96' 18250+2724 HO 84DE distance=97' 18250+2724 STF2315AB distance=98' 18250+2724 STF2315AC distance=98' 18250+2724 BU 9009AD distance=98' 18233+2731 HO 83 distance=100' 18349+2840 LDS4791 distance=103' 18350+2844 STF2344 distance=103' 18246+3034 KPP4107 distance=105' 18353+2842 OSO 101AB distance=107' 18353+2842 OSO 101AC distance=107' 18353+2842 OSO 101AD distance=107' 18353+2842 OSO 101AE distance=107' 18353+2842 OSO 101AF distance=107' 18280+2708 ES 475 distance=109' 18215+3016 UC 3558 distance=110' 18191+2935 A 242 distance=114' 18191+2808 HJ 1318 distance=119' 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 18273+2856 HO 433 328 9.8
Show 18265+2842 HJ 1324 14 5.6 18
Show 18280+2837 COU 638 136 3.3 21
Show 18270+2832 MLB 648 22 10.1 25
Show 18257+2828 TDT 858 57 0.4 36
Show 18292+2933 HO 434 184 18.6 45
Show 18249+2817 RAO 391 313 0.1 50
Show 18298+2818 UC 3594 71 13.4 51
Show 18269+2950 HJ 1325 311 6.5 55
Show 18242+2818 A 244 268 0.6 56
Show 18253+2805 HDS2604 Aa,Ab 212 0.7 57
Show 18253+2805 HO 85 AB 196 4.9 57
Show 18227+2849 UC 3566 180 32.0 61
Show 18271+2754 TDS 921 315 0.9 62
Show 18292+2955 STF2327 314 19.6 65
Show 18295+2955 STF2328 AB 72 3.7 67
Show 18295+2955 WAL 91 AC 352 53.9 67
Show 18238+2808 GRV1261 16 2.2 67
Show 18306+2805 ES 476 AB 347 2.8 68
Show 18306+2805 ES 476 AC 325 28.9 68
Show 18235+2810 JOD 15 176 1.2 68
Show 18295+2959 KU 118 323 50.4 70
Show 18268+3007 TDT 872 319 0.6 72
Show 18332+2835 MLB 691 18 4.3 81
Show 18220+2812 UC 3562 313 15.6 83
Show 18252+3016 TDT 847 291 0.5 85
Show 18251+3016 GIC 152 125 26.9 86
Show 18212+2820 STF2312 341 1.7 89
Show 18336+2934 RAO 393 69 1.7 91
Show 18230+3007 HDS2599 11 0.3 91
Show 18230+2742 HJ 1322 239 21.8 93
Show 18338+2816 MLB 568 207 3.8 95
Show 18290+3029 TDT 901 45 0.5 96
Show 18265+2721 BU 264 8.0 96
Show 18250+2724 HO 84 DE 322 4.4 97
Show 18250+2724 STF2315 AB 117 0.6 98
Show 18250+2724 STF2315 AC 79 44.9 98
Show 18250+2724 BU 9009 AD 290 118.0 98
Show 18233+2731 HO 83 115 0.8 100
Show 18349+2840 LDS4791 77 15.6 103
Show 18350+2844 STF2344 175 1.5 103
Show 18246+3034 KPP4107 79 2.2 105
Show 18353+2842 OSO 101 AB 321 9.7 107
Show 18353+2842 OSO 101 AC 121 11.1 107
Show 18353+2842 OSO 101 AD 132 15.3 107
Show 18353+2842 OSO 101 AE 88 17.8 107
Show 18353+2842 OSO 101 AF 49 24.5 107
Show 18280+2708 ES 475 223 10.7 109
Show 18215+3016 UC 3558 268 45.1 110
Show 18191+2935 A 242 305 1.3 114
Show 18191+2808 HJ 1318 140 10.0 119

 
 
WDS 18273+2856 : COMPONENTS
 
 
  A
B pa=331.5°
sep=9.45"
 
 
18273+2856 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 182717.52+285544.1 Mag 8.61 Spectral class B8 (blue-white)
PmRA -2.00 PmDE -8.0 SAO 86075 HIP 90445
Tycho2 2118-02613-1 HD 170263 BD BD+28 3002
Tycho2
Tycho2 2118-02613-1 Pflag RAmdeg 276.82300645 DEmdeg 28.92888636
PmRA -0.5 PmDE -8.2 E RAmdeg 6 E DEmdeg 5
E pmRA 1.5 E pmDE 1.3 EpRAm 1991.22 EpDEm 1991.37
Num 8 Q RAmdeg 2.2 Q DEmdeg 2.6 Q pmRA 2.1
Q pmDE 2.5 BTmag 8.638 E BTmag 0.016 VTmag 8.612
E VTmag 0.012 Prox 999 TYC T HIP 90445
CCDM RAdeg 276.82300889 DEdeg 28.92890472 EpRA 1990 1.57
EpDE 1990 1.66 E RAdeg 5.6 E DEdeg 5.4 Posflg
Corr 0.0
SAO
SAO 86075 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 -0.005 Vmag 8.6 SpType B8
Double code Source 34 CatNum 8929 DM BD+28 3002
DMcomp BDsup HD 170263 M HD 0
GC RA1950rad 4.82295637 DE1950rad 0.50434911 PmRA2000 0.0014
PmDE2000 -0.005
Hipparcos
Catalog H HIP 90445 Proxy RAhms 18 27 17.52
DEdms +28 55 44.1 Vmag 8.6 VarFlag R Vmag H
RAdeg 276.823 DEdeg 28.9289 AstroRef Plx 3.81
CCDM 18273+2856 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 170263 BD BD+28 3002
CD CP Dm number +28 3002 VIred 0.01
SpType B8 R SpType Coord arcsec 2000 182717.52+285544.1
Hipparcos 2
HIP 90445 Sn 5 So 0 Nc 1
RArad 4.8314729645 DErad 0.504904684 Plx 3.18 PmRA -3.12
PmDE -5.98 E RArad 0.47 E DErad 0.49 E Plx 0.76
E pmRA 0.61 E pmDE 0.66 Hpmag 8.6154 E Hpmag 0.0016
SHp 0.017 VA 0 BV 0.006 E BV 0.014
VI 0.03
CCDM
Ccdm 18273+2856 RComp Comp A Note1
Note2 Discov num DRAs -0.48 DDEs -15.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp B8 PmNote *
PmRA 1 PmDE 0 Dm number +28 3002 Cat1 BD
Name2 +28 1789 Cat2 AGK2/3 HD 170263 M HD
ADS BDS A11369 M ADS BDS N IDS IDS 18234N2852A
HIC 90445
 
 
18273+2856 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182717.18+285552.4 Mag 13 Calc delta mag 4.39
Calc coord yes
CCDM
Ccdm 18273+2856 RComp Comp B Note1
Note2 Discov num HO 433 DRAs -0.82 DDEs -7.5
R dRAs 90 Year 1890 Theta 330 Rho 9.1
Obs 4 Vmag 13.0 Sp PmNote
PmRA 1 PmDE 0 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11369 M ADS BDS N IDS IDS 18234N2852B
HIC 90445