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Current system
18405+3139
HO 437 AB


Nearby doubles
9' : 18409+3132
HJ 1337

36' : 18432+3150
UC 3654

39' : 18389+3106
SLE 113

42' : 18437+3141
A 253

47' : 18375+3112
A 250

49' : 18400+3051
ARY 59

49' : 18371+3201
SLE 220

55' : 18409+3044
SLE 114

59' : 18386+3046
STF2359AB

59' : 18425+3231
HJ 1340

61' : 18364+3209
SLE 219

63' : 18356+3136
SLE 217

66' : 18392+3242
SEI 567

68' : 18414+3032
TDT 998

69' : 18424+3036
LDS1014

71' : 18351+3151
UC 3620

73' : 18434+3037
SLE 118

73' : 18458+3113
SLE 120

74' : 18355+3215
CRB 127

76' : 18367+3036
HJ 1330AB

77' : 18347+3158
SLE 211

77' : 18464+3116
HJ 1345

77' : 18457+3218
SEI 574

79' : 18378+3249
LDS4792

81' : 18447+3237
LDS4797

81' : 18344+3200
ES 2420AB



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18405+3139 HO 437 AB

 
 
18h 40m 29.71s +31° 38' 36.4" P.A. 140.00 sep 0.3 mag 9.00,7.71 Sp A5 dist. 168.07 pc (548.24 l.y.)
 
 
Coord 2000 18405+3139 Discov num HO  437 Comp AB Coord arcsec 2000 18 40 29.71 +31 38 36.4
Date first 1892 Date last 2016 Obs 41
Pa first 116 Pa last 140.4 P.A. Now (θ) 140.4°
Sep first 0.4 Sep last 0.27 Sep. Now (ρ) 0.27"
Mag pri 9.00 Mag sec 7.71 delta mag (ΔM) 1.29 Spectral class A5 (white)
Pri motion ra -006 Sec motion ra -006
Pri motion dec +002 Sec motion dec +002
Notes
Nature of this double is uncertain.
 
 
18405+3139 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67238 18 40 30 +31 38 36 HO 437 AB 2016 41 140 0.3 9.00 7.71 1.29 <===
Show 67238 18 40 30 +31 38 36 HO 437 AC 2014 8 272 39.9 9.00 11.30 2.30
Show 67238 18 40 30 +31 38 36 HO 437 AE 2006 5 288 22.1 9.00 15.20 6.20
Show 18 40 27 +31 38 37 HO 437 CD 2015 16 347 4.5 11.30 11.70 0.40
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra SAO 67238 HIP 91579 Tycho2 2637-01136-1
HD 172729 BD BD+31 3327 Distance 168.07 Distance ly 548.24
 
 
WDS 18405+3139 HO 437 AB : 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
18405+3139 HO 437 AB 1996 37 131 0.4 9.00 7.71 A5 D 184029.71+313836.4
18405+3139 HO 437 AB 2007 39 134 0.3 9.00 7.71 A5 D 184029.71+313836.4
18405+3139 HO 437 AB 2016 40 140 0.3 9.00 7.71 A5 184029.71+313836.4

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

 
 
WDS 18405+3139 HO 437 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18405+3139 HO 437 AB : MEASURES
 
 
No records found.

 
 
WDS 18405+3139 : VIRTUAL EYEPIECE
 
 

18405+3139 HO 437A mag 9 Sp A5 18405+3139 HO 437B sep 0.2 P.A. 144.80 mag 7.71 18405+3139 HO 437C sep 39.6 P.A. 270.90 mag 11.3 18405+3139 HO 437D sep 40.7 P.A. 277.00 mag 11.7 18405+3139 HO 437E sep 19.1 P.A. 291.00 mag 15.2 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 18405+3139 : ALADIN DSS IMAGE @ 18h 40m 29.71s +31° 38' 36.4"
 
 
 
 
WDS 18405+3139 HO 437 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18405+3139 HO 437AB distance=0' 18405+3139 HO 437CD distance=1' 18409+3132 HJ 1337 distance=9' 18432+3150 UC 3654 distance=36' 18389+3106 SLE 113 distance=39' 18437+3141 A 253 distance=42' 18375+3112 A 250 distance=47' 18400+3051 ARY 59 distance=49' 18371+3201 SLE 220 distance=49' 18409+3044 SLE 114 distance=55' 18386+3046 STF2359AB distance=59' 18386+3046 STF2359AC distance=59' 18386+3046 STF2359AD distance=59' 18386+3046 STF2359AE distance=59' 18425+3231 HJ 1340 distance=59' 18364+3209 SLE 219 distance=61' 18386+3046 STF2358CD distance=61' 18356+3136 SLE 217 distance=63' 18392+3242 SEI 567 distance=66' 18414+3032 TDT 998 distance=68' 18424+3036 LDS1014 distance=69' 18351+3151 UC 3620 distance=71' 18434+3037 SLE 118 distance=73' 18458+3113 SLE 120 distance=73' 18355+3215 CRB 127 distance=74' 18367+3036 HJ 1330AB distance=76' 18367+3036 DAM 110AC distance=76' 18347+3158 SLE 211 distance=77' 18464+3116 HJ 1345 distance=77' 18457+3218 SEI 574 distance=77' 18378+3249 LDS4792 distance=79' 18447+3237 LDS4797 distance=81' 18344+3200 ES 2420AB distance=81' 18344+3200 TOB 151AC distance=81' 18369+3032 DAM 111 distance=82' 18405+3017 HJ 1336AB distance=82' 18405+3017 HJ 1336AC distance=82' 18405+3017 HJ 1336AD distance=82' 18405+3017 HJ 1336AE distance=82' 18413+3018 STF2367AB distance=82' 18413+3018 BTG 2AB,F distance=82' 18413+3018 STF2367AB,C distance=82' 18413+3018 STF2367AB,D distance=82' 18413+3018 STF2367AB,E distance=82' 18343+3205 ES 2419 distance=83' 18466+3210 HU 935 distance=85' 18437+3024 STF2376AB distance=86' 18437+3024 STF2376AC distance=86' 18437+3024 SLE 112AD distance=86' 18472+3125 STF2397 distance=88' 18465+3055 A 254 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 18405+3139 HO 437 AB 140 0.3
Show 18405+3139 HO 437 AC 272 39.9
Show 18405+3139 HO 437 AE 288 22.1
Show 18405+3139 HO 437 CD 347 4.5 1
Show 18409+3132 HJ 1337 151 9.4 9
Show 18432+3150 UC 3654 195 30.0 36
Show 18389+3106 SLE 113 125 11.0 39
Show 18437+3141 A 253 132 0.7 42
Show 18375+3112 A 250 114 2.4 47
Show 18400+3051 ARY 59 280 52.4 49
Show 18371+3201 SLE 220 238 18.3 49
Show 18409+3044 SLE 114 145 4.3 55
Show 18386+3046 STF2359 AB 293 24.5 59
Show 18386+3046 STF2359 AC 183 136.9 59
Show 18386+3046 STF2359 AD 183 138.6 59
Show 18386+3046 STF2359 AE 148 225.0 59
Show 18425+3231 HJ 1340 79 15.4 59
Show 18364+3209 SLE 219 246 11.2 61
Show 18386+3046 STF2358 CD 224 2.5 61
Show 18356+3136 SLE 217 246 13.9 63
Show 18392+3242 SEI 567 353 13.0 66
Show 18414+3032 TDT 998 315 0.8 68
Show 18424+3036 LDS1014 13 49.3 69
Show 18351+3151 UC 3620 264 14.5 71
Show 18434+3037 SLE 118 45 8.3 73
Show 18458+3113 SLE 120 115 6.9 73
Show 18355+3215 CRB 127 31 10.9 74
Show 18367+3036 HJ 1330 AB 224 9.3 76
Show 18367+3036 DAM 110 AC 289 8.1 76
Show 18347+3158 SLE 211 270 9.4 77
Show 18464+3116 HJ 1345 169 11.7 77
Show 18457+3218 SEI 574 263 18.7 77
Show 18378+3249 LDS4792 45 3.7 79
Show 18447+3237 LDS4797 28 47.5 81
Show 18344+3200 ES 2420 AB 129 2.9 81
Show 18344+3200 TOB 151 AC 286 25.0 81
Show 18369+3032 DAM 111 286 7.2 82
Show 18405+3017 HJ 1336 AB 89 16.9 82
Show 18405+3017 HJ 1336 AC 176 32.6 82
Show 18405+3017 HJ 1336 AD 294 33.1 82
Show 18405+3017 HJ 1336 AE 334 32.3 82
Show 18413+3018 STF2367 AB 73 0.4 82
Show 18413+3018 BTG 2 AB,F 173 42.4 82
Show 18413+3018 STF2367 AB,C 192 14.1 82
Show 18413+3018 STF2367 AB,D 84 21.9 82
Show 18413+3018 STF2367 AB,E 341 151.7 82
Show 18343+3205 ES 2419 156 3.8 83
Show 18466+3210 HU 935 153 3.1 85
Show 18437+3024 STF2376 AB 63 22.3 86
Show 18437+3024 STF2376 AC 206 85.1 86
Show 18437+3024 SLE 112 AD 168 29.1 86

 
 
WDS 18405+3139 : COMPONENTS
 
 
  A B C D
B pa=144.8°
sep=0.25"
 
C pa=270.9°
sep=39.59"
pa=271.2°
sep=39.74"
 
D pa=277.0°
sep=40.73"
pa=277.3°
sep=40.90"
pa=349.1°
sep=4.45"
 
E pa=291.0°
sep=19.14"
pa=291.4°
sep=19.35"
pa=73.9°
sep=22.60"
pa=85.2°
sep=22.64"
 
 
18405+3139 A
 
 
Coord arcsec 2000 184029.71+313836.4 Mag 9 Spectral class A5 (white) PmRA -6.00
PmDE 2.0 SAO 67238 HIP 91579 HD 172729
BD BD+31 3327
SAO
SAO 67238 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 0.006 Vmag 7.7 SpType A5
Double code Source 6 CatNum 1668 DM BD+31 3327
DMcomp BDsup HD 172729 M HD 0
GC RA1950rad 4.88084857 DE1950rad 0.55144599 PmRA2000 0.0005
PmDE2000 0.006
Hipparcos
Catalog H HIP 91579 Proxy H RAhms 18 40 29.71
DEdms +31 38 36.4 Vmag 7.4 VarFlag R Vmag G
RAdeg 280.124 DEdeg 31.6435 AstroRef A Plx 5.02
CCDM 18405+3139 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 133 Rho 0.401 HD 172729 BD BD+31 3327
CD CP Dm number +31 3327 VIred 0.39
SpType A5 R SpType Coord arcsec 2000 184029.71+313836.4
Hipparcos 2
HIP 91579 Sn 15 So 3 Nc 2
RArad 4.8890821367 DErad 0.5522824759 Plx 5.95 PmRA -5.53
PmDE 3.34 E RArad 0.54 E DErad 0.6 E Plx 0.74
E pmRA 0.67 E pmDE 0.8 Hpmag 7.4708 E Hpmag 0.0012
SHp 0.011 VA 0 BV 0.335 E BV 0.015
VI 0.39
CCDM
Ccdm 18405+3139 RComp Comp A Note1
Note2 Discov num DRAs -0.28 DDEs -23.2
R dRAs 10 Year Theta Rho
Obs 5 Vmag 8.4 Sp A5 PmNote *
PmRA -4 PmDE 13 Dm number +31 3327 Cat1 BD
Name2 +31 1668 Cat2 AGK2/3 HD 172729 M HD
ADS BDS A11566 M ADS BDS N IDS IDS 18368N3132A
HIC 91579
 
 
18405+3139 B
 
 
Coord arcsec 2000 184029.72+313836.2 Mag 7.71 PmRA -6.00 PmDE 2.0
Tycho2 2637-01136-1 Calc delta mag 1.29 Calc coord yes
Tycho2
Tycho2 2637-01136-1 Pflag RAmdeg 280.12379969 DEmdeg 31.64342202
PmRA -6.4 PmDE 1.9 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.25 EpDEm 1991.35
Num 8 Q RAmdeg 0.6 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 0.9 BTmag 7.782 E BTmag 0.016 VTmag 7.470
E VTmag 0.011 Prox 999 TYC T HIP 91579
CCDM AB RAdeg 280.12381750 DEdeg 31.64341750 EpRA 1990 1.51
EpDE 1990 1.62 E RAdeg 4.8 E DEdeg 4.5 Posflg P
Corr 0.0
CCDM
Ccdm 18405+3139 RComp Comp B Note1
Note2 Discov num HO 437 DRAs DDEs
R dRAs Year 1960 Theta 128 Rho 0.5
Obs 12 Vmag 8.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11566 M ADS BDS N IDS IDS 18368N3132B
HIC 91579
 
 
18405+3139 C
 
 
Coord arcsec 2000 184026.61+313837.0 Coord calc 184026.61+313837.0 Mag 11.3 PmRA 7.00
PmDE -10.0 Calc delta mag 2.3
CCDM
Ccdm 18405+3139 RComp Comp C Note1
Note2 Discov num HO 437 DRAs DDEs
R dRAs Year 1893 Theta 273 Rho 40.2
Obs 3 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11566 M ADS BDS N IDS IDS 18368N3132C
HIC
 
 
18405+3139 D
 
 
Coord arcsec 2000 184026.54+313841.4 Mag 11.7 Calc delta mag 2.7 Calc coord yes
CCDM
Ccdm 18405+3139 RComp C Comp D Note1
Note2 Discov num HO 437 DRAs DDEs
R dRAs Year 1951 Theta 346 Rho 4.0
Obs 6 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11566 M ADS BDS N IDS IDS 18368N3132D
HIC
 
 
18405+3139 E
 
 
Coord arcsec 2000 184028.31+313843.3 Mag 15.2 Calc delta mag 6.2 Calc coord yes