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Current system
18028-2705
HLD 32 AB
HD 164538


Nearby doubles
6' : 18032-2707
J 1592AB

25' : 18035-2643
BRT3057

28' : 18020-2731
STN 40AB

31' : 18050-2705
OCC 89

32' : 18051-2707
OCC 90

33' : 18009-2726
RST2018

35' : 18045-2729
SKF2549

35' : 18035-2738
TDT 660

39' : 18016-2740
TDT 641AB

44' : 18060-2659
I 1017

45' : 18004-2735
RST2016

45' : 18029-2750
B 2428AB

48' : 17598-2637
BRT3053

48' : 18028-2617
B 373

48' : 17592-2708
B 368AB

50' : 18034-2754
BRT3056

55' : 18016-2612
TDT 640

58' : 18070-2706
OCC 88

60' : 18008-2611
I 1016

62' : 18018-2805
RST2020

64' : 18024-2601
B 372

66' : 18043-2603
J 1735

68' : 18050-2806
J 1593

70' : 17598-2801
RST2015

70' : 18024-2556
OCC1030

75' : 18027-2550
OCC1032



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

18028-2705 HLD 32 AB (HD 164538)

 
 
18h 02m 45.04s -27° 04' 42.4" P.A. 101.00 sep 5.2 mag 8.30,9.70 Sp F8/9IV/V
 
 
Coord 2000 18028-2705 Discov num HLD  32 Comp AB Coord arcsec 2000 18 02 45.04 -27 04 42.4
Date first 1881 Date last 2019 Obs 19
Pa first 102 Pa last 100.5 P.A. Now (θ) 100.5°
Sep first 4.5 Sep last 5.2 Sep. Now (ρ) 5.2"
Mag pri 8.30 Mag sec 9.70 delta mag (ΔM) 1.4 Spectral class F8/9IV/V (yellow-white)
Pri motion ra -049 Sec motion ra
Pri motion dec +007 Sec motion dec
Notes V (Proper motion indicates physical)
This double is physical.
 
 
18028-2705 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 164538 18 02 45 -27 04 42 HLD 32 AB 2019 19 101 5.2 8.30 9.70 1.40 <===
Show 18 02 45 -27 04 42 FOX 218 AC 1998 3 67 41.9 8.30 9.70 1.40
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 164538 Constellation Sagittarius Tycho2 6850-00972-1 Gaia DR2 4063203718272738816
HD 164538
 
 
WDS 18028-2705 HLD 32 AB (HD 164538) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Fox1909 Ma - Fox, P. 1909AN....181..245F
Fox1909 AN 181, 245, 1909 (measures are also in Fox1915)
Fox1910 Ma - Fox, P. 1910AJ.....26...87F
Fox1910 AJ 26, 87, 1910 (measures are also in Fox1915)
Fox1915 Ma j Fox, P. 1915AnDea...1....1F
Fox1915 Ann. Dearborn Obs. 1, 1, 1915
Fox1915b Ma j Fox, P. 1915AnDea...1...52F
Fox1915b Ann. Dearborn Obs. 1, 52, 1915
Fox1925 Ma j Fox, P. 1925AnDea...2....1F
Fox1925 +Ca Ann. Dearborn Obs. 2, 1, 1925
Fox1946 Ma - Fox, P. 1946AnDea...6....1F
Fox1946 +Po Ann. Dearborn Obs. 6, 1, 1946
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18028-2705 HLD 32 AB 2001 16 100 5.2 8.40 9.40 F7V DV 180245.05-270442.5
18028-2705 HLD 32 AB 2015 17 101 5.3 8.44 9.40 F7V V 180245.04-270442.4
18028-2705 HLD 32 AB 2019 20 101 5.2 8.44 9.40 F7V V 180245.04-270442.4

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

 
 
WDS 18028-2705 HLD 32 AB (HD 164538) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18028-2705 HLD 32 AB (HD 164538) : MEASURES
 
 
No records found.

 
 
WDS 18028-2705 (HD 164538) : VIRTUAL EYEPIECE
 
 

18028-2705 HLD 32A mag 8.3 Sp F8/9IV/V 18028-2705 HLD 32B sep 4.7 P.A. 101.80 mag 9.7 18028-2705 FOX 218C sep 38.1 P.A. 64.30 mag 9.7 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 18028-2705 (HD 164538) : ALADIN DSS IMAGE @ 18h 02m 45.04s -27° 04' 42.4"
 
 
 
 
WDS 18028-2705 HLD 32 AB (HD 164538) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18028-2705 HLD 32AB distance=0' 18032-2707 J 1592AB distance=6' 18032-2707 J 1592AC distance=6' 18035-2643 BRT3057 distance=25' 18020-2731 STN 40AB distance=28' 18020-2731 B 2850AC distance=28' 18050-2705 OCC 89 distance=31' 18051-2707 OCC 90 distance=32' 18009-2726 RST2018 distance=33' 18045-2729 SKF2549 distance=35' 18035-2738 TDT 660 distance=35' 18016-2740 TDT 641AB distance=39' 18016-2740 STN 38AC distance=39' 18060-2659 I 1017 distance=44' 18004-2735 RST2016 distance=45' 18029-2750 HDS2541Aa,Ab distance=45' 18029-2750 B 2428AB distance=45' 17598-2637 BRT3053 distance=48' 18028-2617 B 373 distance=48' 17592-2708 OCC 703Aa,Ab distance=48' 17592-2708 B 368AB distance=48' 18034-2754 BRT3056 distance=50' 18016-2612 TDT 640 distance=55' 18070-2706 OCC 88 distance=58' 18008-2611 I 1016 distance=60' 18018-2805 RST2020 distance=62' 18024-2601 B 372 distance=64' 18043-2603 J 1735 distance=66' 18050-2806 J 1593 distance=68' 17598-2801 RST2015 distance=70' 18024-2556 OCC1030 distance=70' 18027-2550 OCC1032 distance=75' 18021-2820 BRT3055 distance=76' 17573-2645 SKF2527 distance=76' 17570-2708 OCC 801 distance=78' 18031-2545 RST3152 distance=80' 17593-2559 B 369 distance=81' 18042-2544 RCH 4 distance=83' 18007-2823 OCC9173 distance=83' 17587-2808 TDT 608 distance=84' 18025-2539 OCC1031 distance=86' 18041-2540 OCC1037 distance=87' 18051-2543 OCC1038 distance=88' 18052-2544 RCH 5AB distance=88' 18052-2544 OCC1039Aa,Ab distance=88' 17562-2714 I 1346 distance=89' 17586-2556 B 2847 distance=89' 18031-2535 RCH 3 distance=90' 18086-2752 BU 244Ba,Bb distance=91' 18086-2752 BU 244AB distance=91' 17589-2548 RST3142 distance=93' 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 18028-2705 HLD 32 AB 101 5.2
Show 18028-2705 FOX 218 AC 67 41.9
Show 18032-2707 J 1592 AB 351 8.0 6
Show 18032-2707 J 1592 AC 12 21.2 6
Show 18035-2643 BRT3057 184 4.3 25
Show 18020-2731 STN 40 AB 161 2.4 28
Show 18020-2731 B 2850 AC 50 5.8 28
Show 18050-2705 OCC 89 -1 0.1 31
Show 18051-2707 OCC 90 -1 0.1 32
Show 18009-2726 RST2018 343 1.8 33
Show 18045-2729 SKF2549 239 5.5 35
Show 18035-2738 TDT 660 208 0.7 35
Show 18016-2740 TDT 641 AB 130 1.9 39
Show 18016-2740 STN 38 AC 87 6.3 39
Show 18060-2659 I 1017 84 2.1 44
Show 18004-2735 RST2016 121 0.9 45
Show 18029-2750 HDS2541 Aa,Ab 38 0.3 45
Show 18029-2750 B 2428 AB 42 9.6 45
Show 17598-2637 BRT3053 154 4.3 48
Show 18028-2617 B 373 325 5.8 48
Show 17592-2708 OCC 703 Aa,Ab -1 0.1 48
Show 17592-2708 B 368 AB 81 3.6 48
Show 18034-2754 BRT3056 171 4.5 50
Show 18016-2612 TDT 640 316 0.4 55
Show 18070-2706 OCC 88 -1 0.1 58
Show 18008-2611 I 1016 26 1.6 60
Show 18018-2805 RST2020 171 3.4 62
Show 18024-2601 B 372 35 0.8 64
Show 18043-2603 J 1735 262 5.9 66
Show 18050-2806 J 1593 149 9.1 68
Show 17598-2801 RST2015 197 0.8 70
Show 18024-2556 OCC1030 -1 0.0 70
Show 18027-2550 OCC1032 -1 0.0 75
Show 18021-2820 BRT3055 48 4.9 76
Show 17573-2645 SKF2527 322 4.3 76
Show 17570-2708 OCC 801 -1 0.1 78
Show 18031-2545 RST3152 244 0.7 80
Show 17593-2559 B 369 0.3 81
Show 18042-2544 RCH 4 354 3.9 83
Show 18007-2823 OCC9173 -1 0.0 83
Show 17587-2808 TDT 608 245 1.3 84
Show 18025-2539 OCC1031 -1 0.0 86
Show 18041-2540 OCC1037 -1 0.1 87
Show 18051-2543 OCC1038 -1 0.0 88
Show 18052-2544 RCH 5 AB 35 2.3 88
Show 18052-2544 OCC1039 Aa,Ab -1 0.0 88
Show 17562-2714 I 1346 204 0.8 89
Show 17586-2556 B 2847 97 9.2 89
Show 18031-2535 RCH 3 359 0.0 90
Show 18086-2752 BU 244 Ba,Bb 154 0.1 91
Show 18086-2752 BU 244 AB 270 2.2 91

 
 
WDS 18028-2705 : COMPONENTS
 
 
  A B
B pa=101.8°
sep=4.65"
 
C pa=64.3°
sep=38.08"
pa=59.6°
sep=34.50"
 
 
18028-2705 A
 
 
Name HD 164538 Coord arcsec 2000 180245.04-270442.4 Mag 8.3 Spectral class F8/9IV/V (yellow-white)
PmRA -49.00 PmDE 7.0 Tycho2 6850-00972-1 HD 164538
Tycho2
Tycho2 6850-00972-1 Pflag RAmdeg 270.68767340 DEmdeg -27.07844414
PmRA -59.6 PmDE 10.4 E RAmdeg 7 E DEmdeg 10
E pmRA 2.7 E pmDE 2.4 EpRAm 1991.78 EpDEm 1991.64
Num 3 Q RAmdeg 2.7 Q DEmdeg 0.1 Q pmRA 2.7
Q pmDE 0.1 BTmag 9.025 E BTmag 0.019 VTmag 8.442
E VTmag 0.015 Prox 999 TYC T HIP
CCDM RAdeg 270.68782472 DEdeg -27.07846778 EpRA 1990 1.86
EpDE 1990 1.86 E RAdeg 7.0 E DEdeg 9.8 Posflg D
Corr 0.0
CCDM
Ccdm 18028-2705 RComp Comp A Note1
Note2 Discov num DRAs -2.78 DDEs 16.6
R dRAs 66 Year Theta Rho
Obs 4 Vmag 8.4 Sp G5 PmNote
PmRA PmDE Dm number -2712299 Cat1 CD
Name2 Cat2 HD 164538 M HD
ADS BDS A10995 M ADS BDS N IDS IDS 17565S2705A
HIC
 
 
18028-2705 B
 
 
Coord arcsec 2000 180245.38-270443.3 Mag 9.7 Calc delta mag 1.4 Calc coord yes
CCDM
Ccdm 18028-2705 RComp Comp B Note1
Note2 Discov num HLD 32 DRAs DDEs
R dRAs Year 1881 Theta 101 Rho 5.1
Obs 10 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10995 M ADS BDS N IDS IDS 17565S2705B
HIC
 
 
18028-2705 C
 
 
Coord arcsec 2000 180247.61-270425.9 Mag 9.7 PmRA -52.00 PmDE 12.0
Calc delta mag 1.4 Calc coord yes
CCDM
Ccdm 18028-2705 RComp Comp C Note1
Note2 Discov num FOX 218 DRAs 0.30 DDEs 32.5
R dRAs 66 Year 1909 Theta 68 Rho 43.3
Obs 1 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10995 M ADS BDS N IDS IDS 17565S2705C
HIC