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Doubles in session


Current system
18528-1725
HU 257
HD 174739


Nearby doubles
18' : 18516-1719
HU 255

26' : 18528-1658
J 2238

32' : 18549-1733
RST3205AB

34' : 18510-1747
HJ 2842

39' : 18553-1738
HJ 2844

46' : 18559-1735
HJ 2845

48' : 18509-1646
HLD 148

51' : 18494-1740
TDT1072

52' : 18498-1655
TDT4316

54' : 18494-1750
HJ 2840

55' : 18496-1654
HWE 44AB

57' : 18557-1646
J 1661

57' : 18506-1813
RST3200

59' : 18503-1812
TDT1080

62' : 18529-1625
RST4021

62' : 18505-1818
TDT1081

63' : 18487-1702
J 2235AB

63' : 18530-1623
RST4022

70' : 18560-1637
J 1662

72' : 18555-1626
ARA 112

73' : 18500-1826
J 1658

74' : 18531-1838
HO 569AB

75' : 18555-1623
SOZ 18

79' : 18480-1647
HJ 2838

83' : 18551-1609
BRT 634

83' : 18498-1836
TDT1075



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.

18528-1725 HU 257 (HD 174739)

 
 
18h 52m 45.82s -17° 25' 21.4" P.A. 341.00 sep 2.1 mag 9.79,11.51 Sp Fm
 
 
Coord 2000 18528-1725 Discov num HU  257 Comp Coord arcsec 2000 18 52 45.82 -17 25 21.4
Date first 1900 Date last 1991 Obs 6
Pa first 341 Pa last 340.6 P.A. Now (θ) 340.6°
Sep first 2.3 Sep last 2.13 Sep. Now (ρ) 2.13"
Mag pri 9.79 Mag sec 11.51 delta mag (ΔM) 1.72 Spectral class Fm (yellow-white)
Pri motion ra +006 Sec motion ra +006
Pri motion dec -027 Sec motion dec -027
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 174739 Constellation Sagittarius Tycho2 6285-03180-1 Gaia DR2 4098985189508283392
HD 174739 ADS 11770
 
 
WDS 18528-1725 HU 257 (HD 174739) : NOTES
 
 
discov_num notes refcode
HU 257 Spectrum: Fm Delta Del.
 
 
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
18528-1725 HU 257 1991 6 341 2.1 9.79 11.51 N 185245.82-172521.4

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

 
 
WDS 18528-1725 HU 257 (HD 174739) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18528-1725 HU 257 (HD 174739) : MEASURES
 
 
No records found.

 
 
WDS 18528-1725 (HD 174739) : VIRTUAL EYEPIECE
 
 

18528-1725 HU 257A mag 9.79 Sp Fm 18528-1725 HU 257B sep 2.1 P.A. 341.40 mag 11.51 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 18528-1725 (HD 174739) : ALADIN DSS IMAGE @ 18h 52m 45.82s -17° 25' 21.4"
 
 
 
 
WDS 18528-1725 HU 257 (HD 174739) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18528-1725 HU 257 distance=0' 18516-1719 HU 255 distance=18' 18528-1658 J 2238 distance=26' 18549-1733 RST3205AB distance=32' 18549-1733 HJ 2843AB,C distance=32' 18510-1747 HJ 2842 distance=34' 18553-1738 HJ 2844 distance=39' 18559-1735 HJ 2845 distance=46' 18509-1646 HLD 148 distance=48' 18494-1740 TDT1072 distance=51' 18498-1655 TDT4316 distance=52' 18494-1750 HJ 2840 distance=54' 18496-1654 HWE 44AB distance=55' 18496-1654 HWE 44AC distance=55' 18496-1654 KNP 3AD distance=55' 18557-1646 J 1661 distance=57' 18506-1813 RST3200 distance=57' 18503-1812 TDT1080 distance=59' 18529-1625 RST4021 distance=62' 18505-1818 TDT1081 distance=62' 18487-1702 J 2235AB distance=63' 18487-1702 J 2235BC distance=63' 18530-1623 RST4022 distance=63' 18560-1637 J 1662 distance=70' 18555-1626 ARA 112 distance=72' 18500-1826 J 1658 distance=73' 18531-1838 HO 569AB distance=74' 18531-1838 OCC9186Aa,Ab distance=74' 18555-1623 SOZ 18 distance=75' 18480-1647 HJ 2838 distance=79' 18551-1609 BRT 634 distance=83' 18498-1836 TDT1075 distance=83' 18480-1814 RST3198 distance=84' 18480-1817 WSI 36 distance=86' 18482-1820 J 1636 distance=86' 18477-1633 RST4020 distance=90' 18488-1836 KUI 88 distance=91' 18562-1843 OCC 964 distance=92' 18488-1838 RSS 491 distance=92' 18593-1658 RST3209 distance=98' 18496-1854 OCC 454 distance=100' 18526-1909 ARA 764 distance=105' 19002-1704 GWP2801AB distance=109' 18496-1909 OCC 455AB distance=113' 18457-1624 J 1656 distance=118' 18575-1903 HDS2687 distance=119' 18442-1733 HLD 146 distance=122' 18435-1725 RST3194 distance=133' 19020-1705 OCC9061 distance=134' 18500-1933 KPP4124 distance=134' 18470-1912 HJ 2837 distance=135' 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 18528-1725 HU 257 341 2.1
Show 18516-1719 HU 255 166 1.4 18
Show 18528-1658 J 2238 182 4.8 26
Show 18549-1733 RST3205 AB 300 0.5 32
Show 18549-1733 HJ 2843 AB,C 339 22.0 32
Show 18510-1747 HJ 2842 338 29.9 34
Show 18553-1738 HJ 2844 105 23.7 39
Show 18559-1735 HJ 2845 6 3.9 46
Show 18509-1646 HLD 148 30 5.0 48
Show 18494-1740 TDT1072 310 0.7 51
Show 18498-1655 TDT4316 333 45.1 52
Show 18494-1750 HJ 2840 173 15.2 54
Show 18496-1654 HWE 44 AB 298 2.0 55
Show 18496-1654 HWE 44 AC 308 36.4 55
Show 18496-1654 KNP 3 AD 200 22.2 55
Show 18557-1646 J 1661 98 4.5 57
Show 18506-1813 RST3200 0.7 57
Show 18503-1812 TDT1080 134 0.9 59
Show 18529-1625 RST4021 118 0.2 62
Show 18505-1818 TDT1081 75 0.5 62
Show 18487-1702 J 2235 AB 203 90.0 63
Show 18487-1702 J 2235 BC 5 6.6 63
Show 18530-1623 RST4022 312 0.4 63
Show 18560-1637 J 1662 191 4.5 70
Show 18555-1626 ARA 112 176 10.7 72
Show 18500-1826 J 1658 59 8.4 73
Show 18531-1838 HO 569 AB 38 15.6 74
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 74
Show 18555-1623 SOZ 18 142 17.7 75
Show 18480-1647 HJ 2838 335 33.4 79
Show 18551-1609 BRT 634 337 3.9 83
Show 18498-1836 TDT1075 97 0.5 83
Show 18480-1814 RST3198 154 0.4 84
Show 18480-1817 WSI 36 262 15.8 86
Show 18482-1820 J 1636 78 7.1 86
Show 18477-1633 RST4020 26 3.5 90
Show 18488-1836 KUI 88 153 0.5 91
Show 18562-1843 OCC 964 -1 0.0 92
Show 18488-1838 RSS 491 334 10.8 92
Show 18593-1658 RST3209 126 0.4 98
Show 18496-1854 OCC 454 -1 0.1 100
Show 18526-1909 ARA 764 221 10.8 105
Show 19002-1704 GWP2801 AB 67 307.7 109
Show 18496-1909 OCC 455 AB -1 0.2 113
Show 18457-1624 J 1656 287 7.6 118
Show 18575-1903 HDS2687 346 1.9 119
Show 18442-1733 HLD 146 194 2.2 122
Show 18435-1725 RST3194 87 4.0 133
Show 19020-1705 OCC9061 254 0.1 134
Show 18500-1933 KPP4124 15 1.5 134
Show 18470-1912 HJ 2837 89 11.2 135

 
 
WDS 18528-1725 : COMPONENTS
 
 
  A
B pa=341.4°
sep=2.12"
 
 
18528-1725 A
 
 
Componente originario normalizzato AB Name HD 174739 Coord arcsec 2000 185245.82-172521.4 Mag 9.79
Spectral class Fm (yellow-white) PmRA 6.00 PmDE -27.0 Tycho2 6285-03180-1
HD 174739 ADS 11770 DM BD-17 5359
Tycho2
Tycho2 6285-03180-1 Pflag RAmdeg 283.19093713 DEmdeg -17.42260420
PmRA 6.2 PmDE -26.6 E RAmdeg 17 E DEmdeg 22
E pmRA 1.7 E pmDE 2.0 EpRAm 1987.65 EpDEm 1987.35
Num 6 Q RAmdeg 1.6 Q DEmdeg 2.1 Q pmRA 1.6
Q pmDE 2.1 BTmag 10.290 E BTmag 0.035 VTmag 9.818
E VTmag 0.033 Prox 999 TYC T HIP
CCDM RAdeg 283.19092500 DEdeg -17.42255111 EpRA 1990 1.84
EpDE 1990 1.89 E RAdeg 18.8 E DEdeg 25.4 Posflg
Corr 0.0
 
 
18528-1725 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185245.77-172519.4 Mag 11.51 PmRA 6.00
PmDE -27.0 Calc delta mag 1.72 Calc coord yes