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Doubles in session


Current system
18241+2027
HO 652
HD 169490


Nearby doubles
5' : 18240+2023
CLZ 74

7' : 18245+2028
BU 1325

23' : 18225+2030
DAM 282

27' : 18223+2036
L 20

33' : 18218+3038
L 21

33' : 18227+2053
DAM 283

34' : 18218+2023
DAM 281

35' : 18216+2030
HO 430

37' : 18225+2056
AZC 104

43' : 18258+1952
BRT2446AB

48' : 18273+2012
TDS 922

53' : 18253+2116
TDT 850AB

57' : 18204+2048
WFC 206

57' : 18249+1932
TDT 845

58' : 18218+2115
FUR 4

59' : 18205+2055
COU 202

59' : 18254+1932
TDT 851

60' : 18208+2114
FUR 3

61' : 18250+1928
VAT 3

65' : 18285+2010
COU 203AB

65' : 18203+2104
HDS2592

71' : 18218+2130
BU 641

77' : 18206+2126
UC 3554

77' : 18293+2052
TDT 904

78' : 18200+2120
AG 221AB

80' : 18237+2146
STT 587AB



Selections
Full WDS
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.

18241+2027 HO 652 (HD 169490)

 
 
18h 24m 05.63s +20° 27' 08.1" P.A. 352.00 sep 33.2 mag 6.78,11.60 Sp F0 dist. 80.13 pc (261.38 l.y.)
 
 
Coord 2000 18241+2027 Discov num HO  652 Comp Coord arcsec 2000 18 24 05.63 +20 27 08.1
Date first 1903 Date last 2015 Obs 7
Pa first 350 Pa last 351.5 P.A. Now (θ) 351.5°
Sep first 39.0 Sep last 33.192 Sep. Now (ρ) 33.192"
Mag pri 6.78 Mag sec 11.60 delta mag (ΔM) 4.82 Spectral class F0 (yellow-white)
Pri motion ra -022 Sec motion ra
Pri motion dec +050 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 169490 Constellation Hercules SAO 86007 HIP 90176
Tycho2 1577-00989-1 Gaia DR2 4528533772256801280 HD 169490 GC 25121
BD BD+20 3769 Distance 80.13 Distance ly 261.38
 
 
WDS 18241+2027 HO 652 (HD 169490) : 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
18241+2027 HO 652 2003 4 351 33.8 6.60 11.60 F0 D 182405.63+202708.1
18241+2027 HO 652 2010 6 351 33.3 6.78 11.60 F0 182405.63+202708.1
18241+2027 HO 652 2015 7 352 33.2 6.78 11.60 F0 182405.63+202708.1

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

 
 
WDS 18241+2027 HO 652 (HD 169490) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18241+2027 HO 652 (HD 169490) : MEASURES
 
 
No records found.

 
 
WDS 18241+2027 (HD 169490) : VIRTUAL EYEPIECE
 
 

18241+2027 HO 652A mag 6.78 Sp F0 18241+2027 HO 652B sep 33.1 P.A. 352.00 mag 11.6 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18241+2027 (HD 169490) : ALADIN DSS IMAGE @ 18h 24m 05.63s +20° 27' 08.1"
 
 
 
 
WDS 18241+2027 HO 652 (HD 169490) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18241+2027 HO 652 distance=1' 18240+2023 CLZ 74 distance=5' 18245+2028 BU 1325 distance=7' 18225+2030 DAM 282 distance=23' 18223+2036 L 20 distance=27' 18218+3038 L 21 distance=33' 18227+2053 DAM 283 distance=33' 18218+2023 DAM 281 distance=34' 18216+2030 HO 430 distance=35' 18225+2056 AZC 104 distance=37' 18258+1952 BRT2446AB distance=43' 18258+1952 BRT2446AC distance=43' 18273+2012 TDS 922 distance=48' 18253+2116 TDT 850AB distance=53' 18204+2048 WFC 206 distance=57' 18249+1932 TDT 845 distance=57' 18218+2115 FUR 4 distance=58' 18205+2055 COU 202 distance=59' 18254+1932 TDT 851 distance=59' 18208+2114 FUR 3 distance=60' 18250+1928 VAT 3 distance=61' 18285+2010 COU 203AB distance=65' 18285+2010 COU 203Aa,Ab distance=65' 18203+2104 HDS2592 distance=65' 18218+2130 BU 641 distance=71' 18206+2126 UC 3554 distance=77' 18293+2052 TDT 904 distance=77' 18200+2120 AG 221AB distance=78' 18200+2120 AG 221AC distance=78' 18237+2146 STT 587AB distance=80' 18237+2146 STG 7AC distance=80' 18237+2146 TOK 60Aa,Ab distance=80' 18210+1913 TDT 812 distance=86' 18277+1918 STF2319AB distance=87' 18277+1918 STF2319AD distance=87' 18277+1918 STF2319AC distance=87' 18277+1918 STF2319BC distance=87' 18248+2156 BRT2445 distance=90' 18183+2114 LDS4784 distance=95' 18173+2025 J 759 distance=95' 18225+1854 GWP2773 distance=96' 18274+2152 CBL 170 distance=97' 18172+1955 TDT 775 distance=103' 18316+2030 COU 119 distance=106' 18166+2022 KPP3329 distance=106' 18293+2144 J 2913AB distance=107' 18293+2144 J 2913AC distance=107' 18163+2016 HO 269 distance=110' 18299+2141 TDS 926 distance=110' 18320+2031 LAW 18 distance=112' 18302+1909 GWP2780 distance=117' 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 18241+2027 HO 652 352 33.2 1
Show 18240+2023 CLZ 74 51 87.8 5
Show 18245+2028 BU 1325 353 5.6 7
Show 18225+2030 DAM 282 245 8.0 23
Show 18223+2036 L 20 337 2.2 27
Show 18218+3038 L 21 91 7.1 33
Show 18227+2053 DAM 283 253 7.8 33
Show 18218+2023 DAM 281 75 10.5 34
Show 18216+2030 HO 430 194 2.5 35
Show 18225+2056 AZC 104 274 33.6 37
Show 18258+1952 BRT2446 AB 323 3.4 43
Show 18258+1952 BRT2446 AC 256 8.0 43
Show 18273+2012 TDS 922 206 2.4 48
Show 18253+2116 TDT 850 AB 199 0.5 53
Show 18204+2048 WFC 206 45 9.4 57
Show 18249+1932 TDT 845 118 0.4 57
Show 18218+2115 FUR 4 32 3.1 58
Show 18205+2055 COU 202 294 0.2 59
Show 18254+1932 TDT 851 4 0.6 59
Show 18208+2114 FUR 3 324 2.4 60
Show 18250+1928 VAT 3 177 8.6 61
Show 18285+2010 COU 203 AB 61 0.5 65
Show 18285+2010 COU 203 Aa,Ab 154 0.2 65
Show 18203+2104 HDS2592 184 0.2 65
Show 18218+2130 BU 641 341 0.8 71
Show 18206+2126 UC 3554 172 16.8 77
Show 18293+2052 TDT 904 223 0.7 77
Show 18200+2120 AG 221 AB 12 1.8 78
Show 18200+2120 AG 221 AC 9 9.7 78
Show 18237+2146 STT 587 AB 323 238.0 80
Show 18237+2146 STG 7 AC 84 129.1 80
Show 18237+2146 TOK 60 Aa,Ab 280 0.0 80
Show 18210+1913 TDT 812 71 0.6 86
Show 18277+1918 STF2319 AB 190 5.3 87
Show 18277+1918 STF2319 AD 71 156.7 87
Show 18277+1918 STF2319 AC 268 43.1 87
Show 18277+1918 STF2319 BC 276 42.4 87
Show 18248+2156 BRT2445 21 2.4 90
Show 18183+2114 LDS4784 61 121.3 95
Show 18173+2025 J 759 82 2.5 95
Show 18225+1854 GWP2773 285 13.8 96
Show 18274+2152 CBL 170 160 26.6 97
Show 18172+1955 TDT 775 156 0.9 103
Show 18316+2030 COU 119 229 0.7 106
Show 18166+2022 KPP3329 203 1.5 106
Show 18293+2144 J 2913 AB 117 3.2 107
Show 18293+2144 J 2913 AC 158 15.5 107
Show 18163+2016 HO 269 152 8.9 110
Show 18299+2141 TDS 926 253 0.9 110
Show 18320+2031 LAW 18 18 1.4 112
Show 18302+1909 GWP2780 298 57.8 117

 
 
WDS 18241+2027 : COMPONENTS
 
 
  A
B pa=352.0°
sep=33.15"
 
 
18241+2027 A
 
 
Componente originario normalizzato AB Name HD 169490 Coord arcsec 2000 182405.63+202708.1 Mag 6.78
Spectral class F0 (yellow-white) PmRA -22.00 PmDE 50.0 SAO 86007
HIP 90176 Tycho2 1577-00989-1 HD 169490 GC 25121
BD BD+20 3769
Tycho2
Tycho2 1577-00989-1 Pflag RAmdeg 276.02337786 DEmdeg 20.45237166
PmRA -22.9 PmDE 49.7 E RAmdeg 4 E DEmdeg 3
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.85 EpDEm 1991.43
Num 18 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.7
Q pmDE 0.6 BTmag 7.092 E BTmag 0.015 VTmag 6.775
E VTmag 0.010 Prox 999 TYC T HIP 90176
CCDM RAdeg 276.02343722 DEdeg 20.45225611 EpRA 1990 1.27
EpDE 1990 1.64 E RAdeg 3.6 E DEdeg 3.4 Posflg
Corr 0.0
SAO
SAO 86007 DelFlag RA1950 PmRA1950 -0.0022
DE1950 PmDE1950 0.032 Vmag 6.6 SpType F0
Double code Source 70 CatNum 25121 DM BD+20 3769
DMcomp BDsup HD 169490 M HD 0
GC 25121 RA1950rad 4.8081375 DE1950rad 0.35645694 PmRA2000 -0.0021
PmDE2000 0.032
Hipparcos
Catalog H HIP 90176 Proxy RAhms 18 24 05.63
DEdms +20 27 08.1 Vmag 6.75 VarFlag R Vmag H
RAdeg 276.023 DEdeg 20.4523 AstroRef Plx 11.84
CCDM 18241+2027 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 169490 BD BD+20 3769
CD CP Dm number +20 3769 VIred 0.33
SpType F0 R SpType Coord arcsec 2000 182405.63+202708.1
Hipparcos 2
HIP 90176 Sn 5 So 0 Nc 1
RArad 4.8175178113 DErad 0.3569591126 Plx 12.48 PmRA -21.64
PmDE 49.97 E RArad 0.31 E DErad 0.32 E Plx 0.47
E pmRA 0.33 E pmDE 0.33 Hpmag 6.8226 E Hpmag 0.001
SHp 0.01 VA 0 BV 0.305 E BV 0.005
VI 0.35
CCDM
Ccdm 18241+2027 RComp Comp A Note1
Note2 Discov num DRAs -0.35 DDEs 8.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.6 Sp F0 PmNote *
PmRA -14 PmDE 55 Dm number +20 3769 Cat1 BD
Name2 +20 1894 Cat2 AGK2/3 HD 169490 M HD
ADS BDS M ADS BDS N IDS IDS 18198N2024A
HIC 90176
 
 
18241+2027 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182405.30+202740.9 Mag 11.6 Calc delta mag 4.82
Calc coord yes
CCDM
Ccdm 18241+2027 RComp Comp B Note1
Note2 Discov num HO DRAs DDEs
R dRAs Year 1903 Theta 350 Rho 39.0
Obs 1 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18198N2024B
HIC