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Current system
18378-1121
HU 70
HD 171935


Nearby doubles
9' : 18382-1115
RST4018

11' : 18379-1111
BRT2755

38' : 18362-1053
EGN 23AB

43' : 18365-1159
BAR 10

57' : 18413-1143
GWP2793

72' : 18385-1234
J 1595

77' : 18430-1109
KPP2763

81' : 18331-1042
HDS2632AB

85' : 18343-1015
DAM 321

86' : 18334-1026
BU 642AB

88' : 18422-1022
J 2522

91' : 18358-1246
J 2135AB

92' : 18357-1246
J 2133AB

92' : 18396-1250
J 524

100' : 18314-1048
STF2325

102' : 18359-1300
LDS6171

106' : 18308-1108
LDS 642

108' : 18452-1125
TDT1034

110' : 18452-1104
J 465

111' : 18322-1235
RST4016

112' : 18423-0952
SLE 234

115' : 18402-1310
TDT 987

118' : 18355-0929
SLE 207

126' : 18328-1304
J 1745

127' : 18463-1104
KPP 424

127' : 18408-1320
HDS2646



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.

18378-1121 HU 70 (HD 171935)

 
 
18h 37m 49.32s -11° 21' 17.1" P.A. 181.00 sep 0.2 mag 10.03,10.62 Sp F8 dist. 206.19 pc (672.59 l.y.)
 
 
Coord 2000 18378-1121 Discov num HU   70 Comp Coord arcsec 2000 18 37 49.32 -11 21 17.1
Date first 1899 Date last 2019 Obs 20
Pa first 216 Pa last 180.7 P.A. Now (θ) 180.7°
Sep first 0.9 Sep last 0.231 Sep. Now (ρ) 0.231"
Mag pri 10.03 Mag sec 10.62 delta mag (ΔM) 0.59 Spectral class F8 (yellow-white)
Pri motion ra -001 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171935 Constellation Scutum SAO 161684 HIP 91340
Tycho2 5699-06463-1 Gaia DR2 4106677067992532608 HD 171935 BD BD-11 4692
Distance 206.19 Distance ly 672.59
 
 
WDS 18378-1121 HU 70 (HD 171935) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
Hu_1897 Ma - Hussey, W.J. 1897AJ.....17...97H
Hu_1897 AJ 17, 97, 1897
Hu_1898 Ma j Hussey, W.J. 1898AJ.....18..145H
Hu_1898 AJ 18, 145, 1898
Hu_1899 Ma j Hussey, W.J. 1899AN....150..175H
Hu_1899 AN 150, 175, 1899
Hu_1900a Ma - Hussey, W.J. 1900AJ.....20..192H
Hu_1900a AJ 20, 192, 1900
Hu_1900b Ma - Hussey, W.J. 1900AJ.....21...35H
Hu_1900b AJ 21, 35, 1900
Hu_1900c Ma j Hussey, W.J. 1900AN....152..329H
Hu_1900c AN 152, 329, #3645, 1900
Hu_1901a Ma j Hussey, W.J. 1901PLicO...5.....H
Hu_1901a +orb Pub. Lick Obs. 5, 1901
Hu_1901b Ma j Hussey, W.J. 1901LicOB...1...82H
Hu_1901b Lick Obs. Bull. 1, 82, 1901
Hu_1902a Ma j Hussey, W.J. 1902LicOB...1..161H
Hu_1902a Lick Obs. Bull. 1, 161, 1902
Hu_1902b Ma j Hussey, W.J. 1902LicOB...2....1H
Hu_1902b Lick Obs. Bull. 2, 1, 1902
Hu_1903a Ma j Hussey, W.J. 1903LicOB...2...73H
Hu_1903a Lick Obs. Bull. 2, 73, 1903
Hu_1903b Ma j Hussey, W.J. 1903LicOB...2..115H
Hu_1903b Lick Obs. Bull. 2, 115, 1903
Hu_1904a Ma j Hussey, W.J. 1904LicOB...2..180H
Hu_1904a Lick Obs. Bull. 2, 180, 1904
Hu_1904b Ma - Hussey, W.J. 1904LicOB...3...53H
Hu_1904b Lick Obs. Bull. 3, 53, 1904
Hu_1905a Ma - Hussey, W.J. 1905LicOB...3...95H
Hu_1905a Lick Obs. Bull. 3, 95, 1905
Hu_1905b Ma - Hussey, W.J. 1905LicOB...3..116H
Hu_1905b Lick Obs. Bull. 3, 116, 1905
Hu_1905c Ma - Hussey, W.J. 1905LicOB...3..151H
Hu_1905c Lick Obs. Bull. 3, 151, 1905
Hu_1906A Ma - Hussey, W.J. 1906MmRAS..56....1L
Hu_1906A cited by Lewis (MemRAS 56, 1, 1906)
Hu_1906B Ma - Hussey, W.J. 1906QB821.B972.....
Hu_1906B cited in BDS (Burnham Double Star Cat.), 1906
Hu_1907 Ma - Hussey, W.J. 1907LicOB...4..124H
Hu_1907 Lick Obs. Bull. 4, 124, 1907
Hu_1910 Ma - Hussey, W.J. 1910AJ.....21..105H
Hu_1910 AJ 21, 105, 1910
Hu_1911 Ma - Hussey, W.J. 1911LicOB...6..182H
Hu_1911 Lick Obs. Bull. 6, 182, 1911
Hu_1912a Ma - Hussey, W.J. 1915POMic...1..147H
Hu_1912a Pub. Univ. Michigan Obs. 1, 147, 1912
Hu_1912b Ma - Hussey, W.J. 1915POMic...1..160H
Hu_1912b Pub. Univ. Michigan Obs. 1, 160, 1912
Hu_1912c Ma - Hussey, W.J. 1915POMic...1..167H
Hu_1912c Pub. Univ. Michigan Obs. 1, 167, 1912
Hu_1927A Ma - Hussey, W.J. 1927sdsc.book......
Hu_1927A cited in SDS (Southern Double Star Cat.), 1927
Hu_1932A Ma - Hussey, W.J. 1932QB821.A43......
Hu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Hu_9999 Ma - Hussey, W.J. ...................
Hu_9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18378-1121 HU 70 1991 17 198 0.4 10.03 10.62 F8 D 183749.32-112117.1
18378-1121 HU 70 2018 18 182 0.2 10.03 10.62 F8 183749.32-112117.1
18378-1121 HU 70 2019 19 181 0.2 10.03 10.62 F8 183749.32-112117.1

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

 
 
WDS 18378-1121 HU 70 (HD 171935) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18378-1121 HU 70 (HD 171935) : MEASURES
 
 
No records found.

 
 
WDS 18378-1121 (HD 171935) : VIRTUAL EYEPIECE
 
 

18378-1121 HU 70A mag 10.03 Sp F8 18378-1121 HU 70B sep 0.2 P.A. 180.70 mag 10.62 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 18378-1121 (HD 171935) : ALADIN DSS IMAGE @ 18h 37m 49.32s -11° 21' 17.1"
 
 
 
 
WDS 18378-1121 HU 70 (HD 171935) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18378-1121 HU 70 distance=0' 18382-1115 RST4018 distance=9' 18379-1111 BRT2755 distance=11' 18362-1053 EGN 23AB distance=38' 18362-1053 EGN 23AC distance=38' 18362-1053 EGN 23AD distance=38' 18362-1053 EGN 23AE distance=38' 18362-1053 EGN 23AF distance=38' 18362-1053 EGN 23AG distance=38' 18362-1053 EGN 23AH distance=38' 18362-1053 EGN 23AI distance=38' 18362-1053 EGN 23AJ distance=38' 18362-1053 EGN 23AK distance=38' 18362-1053 EGN 23AL distance=38' 18362-1053 EGN 23AM distance=38' 18365-1159 BAR 10 distance=43' 18413-1143 GWP2793 distance=57' 18385-1234 J 1595 distance=72' 18430-1109 KPP2763 distance=77' 18331-1042 HDS2632AB distance=81' 18331-1042 GII 268Aa,Ab distance=81' 18343-1015 DAM 321 distance=85' 18334-1026 BU 642AB distance=86' 18334-1026 BU 642AC distance=86' 18422-1022 J 2522 distance=88' 18358-1246 J 2135BC distance=91' 18358-1246 J 2135AB distance=91' 18357-1246 J 2133BC distance=92' 18357-1246 J 2133AB distance=92' 18357-1246 J 2133AD distance=92' 18396-1250 J 524 distance=92' 18314-1048 STF2325 distance=100' 18359-1300 LDS6171 distance=102' 18308-1108 LDS 642 distance=106' 18452-1125 TDT1034 distance=108' 18452-1104 J 465 distance=110' 18322-1235 RST4016 distance=111' 18423-0952 SLE 234 distance=112' 18305-1052 HDS2623Aa,Ab distance=112' 18402-1310 TDT 987 distance=115' 18355-0929 SLE 207 distance=118' 18328-1304 J 1745 distance=126' 18463-1104 KPP 424 distance=127' 18408-1320 HDS2646 distance=127' 18460-1053 J 2675 distance=127' 18299-1216 HU 68 distance=129' 18459-1030 STF2373 distance=130' 18461-1057 J 1597 distance=130' 18311-0958 KPP2767 distance=130' 18387-1332 BRT2756 distance=131' 18463-1059 J 1598 distance=132' 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 18378-1121 HU 70 181 0.2
Show 18382-1115 RST4018 63 0.4 9
Show 18379-1111 BRT2755 132 3.7 11
Show 18362-1053 EGN 23 AB 140 3.5 38
Show 18362-1053 EGN 23 AC 214 8.7 38
Show 18362-1053 EGN 23 AD 233 13.5 38
Show 18362-1053 EGN 23 AE 203 13.6 38
Show 18362-1053 EGN 23 AF 154 14.5 38
Show 18362-1053 EGN 23 AG 213 14.6 38
Show 18362-1053 EGN 23 AH 145 16.4 38
Show 18362-1053 EGN 23 AI 307 19.3 38
Show 18362-1053 EGN 23 AJ 210 18.4 38
Show 18362-1053 EGN 23 AK 171 19.1 38
Show 18362-1053 EGN 23 AL 221 21.1 38
Show 18362-1053 EGN 23 AM 235 21.8 38
Show 18365-1159 BAR 10 134 0.4 43
Show 18413-1143 GWP2793 320 9.1 57
Show 18385-1234 J 1595 64 11.3 72
Show 18430-1109 KPP2763 138 34.3 77
Show 18331-1042 HDS2632 AB 24 0.5 81
Show 18331-1042 GII 268 Aa,Ab 138 0.1 81
Show 18343-1015 DAM 321 53 4.5 85
Show 18334-1026 BU 642 AB 89 4.2 86
Show 18334-1026 BU 642 AC 30 63.3 86
Show 18422-1022 J 2522 232 3.3 88
Show 18358-1246 J 2135 BC 21 4.9 91
Show 18358-1246 J 2135 AB 19 4.9 91
Show 18357-1246 J 2133 BC 321 5.6 92
Show 18357-1246 J 2133 AB 15 7.4 92
Show 18357-1246 J 2133 AD 77 13.0 92
Show 18396-1250 J 524 312 3.6 92
Show 18314-1048 STF2325 257 12.4 100
Show 18359-1300 LDS6171 270 5.0 102
Show 18308-1108 LDS 642 336 80.6 106
Show 18452-1125 TDT1034 20 1.7 108
Show 18452-1104 J 465 30 2.3 110
Show 18322-1235 RST4016 31 0.9 111
Show 18423-0952 SLE 234 60 6.6 112
Show 18305-1052 HDS2623 Aa,Ab 80 0.0 112
Show 18402-1310 TDT 987 153 2.5 115
Show 18355-0929 SLE 207 252 16.4 118
Show 18328-1304 J 1745 53 8.8 126
Show 18463-1104 KPP 424 133 3.4 127
Show 18408-1320 HDS2646 166 0.1 127
Show 18460-1053 J 2675 149 5.7 127
Show 18299-1216 HU 68 118 3.1 129
Show 18459-1030 STF2373 336 4.3 130
Show 18461-1057 J 1597 29 6.1 130
Show 18311-0958 KPP2767 237 11.7 130
Show 18387-1332 BRT2756 336 4.5 131
Show 18463-1059 J 1598 242 6.8 132

 
 
WDS 18378-1121 : COMPONENTS
 
 
  A
B pa=180.7°
sep=0.23"
 
 
18378-1121 A
 
 
Componente originario normalizzato AB Name HD 171935 Coord arcsec 2000 183749.32-112117.1 Mag 10.03
Spectral class F8 (yellow-white) PmRA -1.00 PmDE -26.0 SAO 161684
HIP 91340 Tycho2 5699-06463-1 HD 171935 BD BD-11 4692
Tycho2
Tycho2 5699-06463-1 Pflag RAmdeg 279.45546833 DEmdeg -11.35485966
PmRA -1.6 PmDE -30.1 E RAmdeg 14 E DEmdeg 17
E pmRA 1.3 E pmDE 1.4 EpRAm 1986.36 EpDEm 1985.23
Num 10 Q RAmdeg 1.6 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 10.251 E BTmag 0.035 VTmag 9.491
E VTmag 0.027 Prox 999 TYC T HIP 91340
CCDM AB RAdeg 279.45547111 DEdeg -11.35478528 EpRA 1990 1.59
EpDE 1990 1.49 E RAdeg 16.8 E DEdeg 21.2 Posflg P
Corr 0.2
SAO
SAO 161684 DelFlag RA1950 PmRA1950 -0.0015
DE1950 PmDE1950 -0.014 Vmag 8.9 SpType F8
Double code Source 20 CatNum 6383 DM BD-11 4692
DMcomp BDsup HD 171935 M HD 0
GC RA1950rad 4.86526786 DE1950rad -0.19894043 PmRA2000 -0.0013
PmDE2000 -0.013
Hipparcos
Catalog H HIP 91340 Proxy H RAhms 18 37 49.32
DEdms -11 21 17.1 Vmag 9.39 VarFlag R Vmag H
RAdeg 279.455 DEdeg -11.3548 AstroRef A Plx 2.52
CCDM 18378-1121 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 198 Rho 0.381 HD 171935 BD BD-11 4692
CD CP Dm number -11 4692 VIred 0.72
SpType F8 R SpType Coord arcsec 2000 183749.32-112117.1
Hipparcos 2
HIP 91340 Sn 15 So 3 Nc 2
RArad 4.8774184032 DErad -0.1981778322 Plx 4.85 PmRA -2.11
PmDE -27.22 E RArad 1.81 E DErad 1.19 E Plx 1.94
E pmRA 1.82 E pmDE 1.5 Hpmag 9.5317 E Hpmag 0.0019
SHp 0.02 VA 0 BV 0.697 E BV 0.035
VI 0.75
CCDM
Ccdm 18378-1121 RComp Comp A Note1
Note2 Discov num DRAs 1.22 DDEs -16.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.2 Sp F8 PmNote *
PmRA -22 PmDE -14 Dm number -11 4692 Cat1 BD
Name2 161684 Cat2 SAO HD 171935 M HD
ADS BDS A11508 M ADS BDS N IDS IDS 18322S1126A
HIC 91340
 
 
18378-1121 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183749.32-112117.3 Mag 10.62 Calc delta mag 0.59
Calc coord yes
CCDM
Ccdm 18378-1121 RComp Comp B Note1
Note2 Discov num HU 70 DRAs DDEs
R dRAs Year 1960 Theta 205 Rho 0.5
Obs 11 Vmag 9.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11508 M ADS BDS N IDS IDS 18322S1126B
HIC 91340