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Current system
18582-2025
HO 271
HD 175876


Nearby doubles
32' : 18590-2059
OL 145

37' : 19007-2030
ARA1165

39' : 19000-2054
DON 938

40' : 18596-1952
DYL 23AB

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J 1753AB

51' : 18592-2114
RST5127AB

51' : 18598-2111
BRT1545

51' : 18590-2115
KPP4133

53' : 18546-2010
ARA1163

55' : 18596-1934
DYL 22

56' : 19017-2001
DYL 31

58' : 19020-2043
J 1755

58' : 19021-2041
AAQ 10

62' : 19019-1954
DYL 32

63' : 18598-1927
DYL 25AB

63' : 18547-1946
OL 80

65' : 19008-1934
DYL 27

65' : 19022-1953
DYL 33

65' : 18535-2030
DON 933

70' : 19004-1923
DYL 26AB

71' : 18594-1917
OCC 590

73' : 19000-1918
OCC 346

74' : 18588-2139
ARA1558

78' : 18527-2014
OCC1017

79' : 18536-1941
RST3203

80' : 18580-2145
B 2870



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18582-2025 HO 271 (HD 175876)

 
 
18h 58m 10.76s -20° 25' 25.5" P.A. 327.00 sep 17.4 mag 6.94,12.27 Sp O8V dist. 746.27 pc (2434.33 l.y.)
 
 
Coord 2000 18582-2025 Discov num HO  271 Comp Coord arcsec 2000 18 58 10.76 -20 25 25.5
Date first 1889 Date last 2010 Obs 7
Pa first 334 Pa last 326.5 P.A. Now (θ) 326.5°
Sep first 16.4 Sep last 17.36 Sep. Now (ρ) 17.36"
Mag pri 6.94 Mag sec 12.27 delta mag (ΔM) 5.33 Spectral class O8V (blue)
Pri motion ra +005 Sec motion ra +031
Pri motion dec -006 Sec motion dec -010
Notes N (See Notes)
rPM=0.808
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 175876 Constellation Sagittarius SAO 187514 HIP 93118
Tycho2 6290-02342-1 Gaia DR2 4085034006179533056 HD 175876 GC 26034
BD BD-20 5344 Distance 746.27 Distance ly 2434.33
 
 
WDS 18582-2025 HO 271 (HD 175876) : NOTES
 
 
discov_num notes refcode
HO 271 A is a double-lined spectroscopic binary.
Classification of the B component is from Lindroos (1985), who also Lnd1985
gives a distance of 1.9 kpc to the system. Msn1998a
 
 
REFERENCES
 
 
refcode metd author reference
Lnd1985 - Lindroos, K.P. 1985A&AS...60..183L
Lnd1985 A&AS 60, 183, 1985
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18582-2025 HO 271 2000 5 327 17.3 6.94 12.27 O8V N D 185810.76-202525.5
18582-2025 HO 271 2010 7 326 17.2 6.94 12.27 O8V N 185810.76-202525.5

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

 
 
WDS 18582-2025 HO 271 (HD 175876) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18582-2025 HO 271 (HD 175876) : MEASURES
 
 
No records found.

 
 
WDS 18582-2025 (HD 175876) : VIRTUAL EYEPIECE
 
 

18582-2025 HO 271A mag 6.94 Sp O8V 18582-2025 HO 271B sep 17.0 P.A. 328.20 mag 12.27 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18582-2025 (HD 175876) : ALADIN DSS IMAGE @ 18h 58m 10.76s -20° 25' 25.5"
 
 
 
 
WDS 18582-2025 HO 271 (HD 175876) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18582-2025 HO 271 distance=0' 18590-2059 OL 145 distance=32' 19007-2030 ARA1165 distance=37' 19000-2054 DON 938 distance=39' 18596-1952 DYL 23AB distance=40' 18596-1952 DYL 23AC distance=40' 18548-2024 J 1753AB distance=48' 18548-2024 J 1753AC distance=48' 18592-2114 HDS2693Aa,Ab distance=51' 18592-2114 RST5127AB distance=51' 18598-2111 BRT1545 distance=51' 18590-2115 KPP4133 distance=51' 18546-2010 ARA1163 distance=53' 18596-1934 DYL 22 distance=55' 19017-2001 DYL 31 distance=56' 19020-2043 J 1755 distance=58' 19021-2041 AAQ 10 distance=58' 19019-1954 DYL 32 distance=62' 18598-1927 DYL 25BC distance=63' 18598-1927 DYL 25BD distance=63' 18598-1927 DYL 25AB distance=63' 18547-1946 OL 80 distance=63' 19008-1934 DYL 27 distance=65' 19022-1953 DYL 33 distance=65' 18535-2030 DON 933 distance=65' 19004-1923 DYL 26AB distance=70' 19004-1923 DYL 26AC distance=70' 18594-1917 OCC 590 distance=71' 19000-1918 OCC 346 distance=73' 18588-2139 ARA1558 distance=74' 18527-2014 OCC1017 distance=78' 18536-1941 RST3203 distance=79' 18580-2145 B 2870 distance=80' 18597-1909 BRT1544 distance=80' 19020-1926 GWP2803BC distance=81' 19000-2145 ARA1560 distance=83' 18575-1903 HDS2687 distance=84' 19015-1913 DYL 28 distance=86' 18596-2150 B 2466 distance=87' 19016-1913 DYL 30 distance=87' 19016-1912 DYL 48 distance=88' 19031-1928 A 2264AB distance=90' 19031-1928 A 2264AC distance=90' 18593-2155 TDT1169 distance=92' 19042-1949 DYL 40AB distance=92' 19029-1918 DYL 34 distance=95' 19050-2018 BRT1546 distance=97' 19039-1933 DYL 36 distance=97' 19049-2046 ARA1166 distance=98' 19031-1915 HJ 5082AB distance=99' 19031-1915 HJ 5082AD distance=99' 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 18582-2025 HO 271 327 17.4
Show 18590-2059 OL 145 184 4.2 32
Show 19007-2030 ARA1165 288 12.1 37
Show 19000-2054 DON 938 234 1.4 39
Show 18596-1952 DYL 23 AB 321 2.8 40
Show 18596-1952 DYL 23 AC 124 4.5 40
Show 18548-2024 J 1753 AB 277 8.2 48
Show 18548-2024 J 1753 AC 56 11.3 48
Show 18592-2114 HDS2693 Aa,Ab 160 0.3 51
Show 18592-2114 RST5127 AB 189 3.2 51
Show 18598-2111 BRT1545 135 5.1 51
Show 18590-2115 KPP4133 24 1.8 51
Show 18546-2010 ARA1163 231 15.2 53
Show 18596-1934 DYL 22 296 9.0 55
Show 19017-2001 DYL 31 267 17.7 56
Show 19020-2043 J 1755 95 3.9 58
Show 19021-2041 AAQ 10 90 4.6 58
Show 19019-1954 DYL 32 150 7.0 62
Show 18598-1927 DYL 25 BC 197 4.6 63
Show 18598-1927 DYL 25 BD 268 5.8 63
Show 18598-1927 DYL 25 AB 166 7.3 63
Show 18547-1946 OL 80 141 3.5 63
Show 19008-1934 DYL 27 202 9.0 65
Show 19022-1953 DYL 33 139 8.2 65
Show 18535-2030 DON 933 237 0.3 65
Show 19004-1923 DYL 26 AB 334 5.7 70
Show 19004-1923 DYL 26 AC 296 9.5 70
Show 18594-1917 OCC 590 -1 0.1 71
Show 19000-1918 OCC 346 -1 1.0 73
Show 18588-2139 ARA1558 137 6.3 74
Show 18527-2014 OCC1017 -1 0.1 78
Show 18536-1941 RST3203 330 0.6 79
Show 18580-2145 B 2870 263 6.0 80
Show 18597-1909 BRT1544 322 2.3 80
Show 19020-1926 GWP2803 BC 258 66.7 81
Show 19000-2145 ARA1560 246 6.8 83
Show 18575-1903 HDS2687 346 1.9 84
Show 19015-1913 DYL 28 321 14.7 86
Show 18596-2150 B 2466 272 10.0 87
Show 19016-1913 DYL 30 8 5.8 87
Show 19016-1912 DYL 48 119 11.9 88
Show 19031-1928 A 2264 AB 87 3.6 90
Show 19031-1928 A 2264 AC 28 14.4 90
Show 18593-2155 TDT1169 216 1.7 92
Show 19042-1949 DYL 40 AB 175 4.6 92
Show 19029-1918 DYL 34 67 9.8 95
Show 19050-2018 BRT1546 264 3.7 97
Show 19039-1933 DYL 36 86 4.7 97
Show 19049-2046 ARA1166 20 10.6 98
Show 19031-1915 HJ 5082 AB 89 7.7 99
Show 19031-1915 HJ 5082 AD 262 25.9 99

 
 
WDS 18582-2025 : COMPONENTS
 
 
  A
B pa=328.2°
sep=17.04"
 
 
18582-2025 A
 
 
Componente originario normalizzato AB Name HD 175876 Coord arcsec 2000 185810.76-202525.5 Mag 6.94
Spectral class O8V (blue) PmRA 5.00 PmDE -6.0 SAO 187514
HIP 93118 Tycho2 6290-02342-1 HD 175876 GC 26034
BD BD-20 5344
Tycho2
Tycho2 6290-02342-1 Pflag RAmdeg 284.54485477 DEmdeg -20.42375731
PmRA 3.7 PmDE -4.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.36 EpDEm 1991.31
Num 19 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.0
Q pmDE 0.7 BTmag 6.755 E BTmag 0.015 VTmag 6.908
E VTmag 0.010 Prox 999 TYC T HIP 93118
CCDM RAdeg 284.54484611 DEdeg -20.42374778 EpRA 1990 1.85
EpDE 1990 1.71 E RAdeg 3.7 E DEdeg 4.4 Posflg
Corr -0.1
SAO
SAO 187514 DelFlag RA1950 PmRA1950 0.0014
DE1950 PmDE1950 0 Vmag 6.7 SpType Oe5
Double code Source 70 CatNum 26034 DM BD-20 5344
DMcomp BDsup HD 175876 M HD 0
GC 26034 RA1950rad 4.95330793 DE1950rad -0.35765056 PmRA2000 0.0015
PmDE2000 0
Hipparcos
Catalog H HIP 93118 Proxy RAhms 18 58 10.76
DEdms -20 25 25.5 Vmag 6.93 VarFlag R Vmag H
RAdeg 284.545 DEdeg -20.4237 AstroRef Plx 0.27
CCDM 18582-2025 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 175876 BD BD-20 5344
CD CP Dm number -20 5344 VIred -0.14
SpType O7/O8 R SpType Coord arcsec 2000 185810.76-202525.5
Hipparcos 2
HIP 93118 Sn 5 So 0 Nc 1
RArad 4.9662444083 DErad -0.356461645 Plx 1.34 PmRA 4.75
PmDE -5.49 E RArad 0.34 E DErad 0.22 E Plx 0.39
E pmRA 0.44 E pmDE 0.3 Hpmag 6.8903 E Hpmag 0.0011
SHp 0.01 VA 0 BV -0.128 E BV 0.007
VI -0.12
CCDM
Ccdm 18582-2025 RComp Comp A Note1
Note2 Discov num DRAs -1.10 DDEs -25.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.7 Sp O8 PmNote *
PmRA 22 PmDE 2 Dm number -20 5344 Cat1 BD
Name2 187514 Cat2 SAO HD 175876 M HD
ADS BDS A11872 M ADS BDS N IDS IDS 18522S2033A
HIC 93118
 
 
18582-2025 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185810.12-202511.0 Mag 12.27 PmRA 31.00
PmDE -10.0 Calc delta mag 5.33 Calc coord yes
CCDM
Ccdm 18582-2025 RComp Comp B Note1
Note2 Discov num HO 271 DRAs -1.70 DDEs -10.4
R dRAs 90 Year 1889 Theta 330 Rho 17.0
Obs 4 Vmag 12.0 Sp PmNote
PmRA 22 PmDE 2 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11872 M ADS BDS N IDS IDS 18522S2033B
HIC