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Doubles in session


Current system
18480-1817
WSI 36


Nearby doubles
2' : 18482-1820
J 1636

4' : 18480-1814
RST3198

22' : 18488-1836
KUI 88

24' : 18488-1838
RSS 491

30' : 18500-1826
J 1658

32' : 18498-1836
TDT1075

33' : 18503-1812
TDT1080

35' : 18494-1750
HJ 2840

36' : 18505-1818
TDT1081

38' : 18506-1813
RST3200

43' : 18494-1740
TDT1072

44' : 18496-1854
OCC 454

53' : 18510-1747
HJ 2842

56' : 18496-1909
OCC 455AB

56' : 18470-1912
HJ 2837

71' : 18442-1733
HLD 146

76' : 18429-1829
ARA 488

76' : 18531-1838
HO 569AB

76' : 18487-1702
J 2235AB

79' : 18516-1719
HU 255

79' : 18483-1935
B 2461

81' : 18500-1933
KPP4124

81' : 18479-1936
J 1657

84' : 18435-1725
RST3194

84' : 18526-1909
ARA 764

85' : 18465-1940
BRT1543



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.

18480-1817 WSI 36

 
 
18h 48m 01.69s -18° 17' 27.0" P.A. 262.00 sep 15.8 mag 11.00,10.89
 
 
Coord 2000 18480-1817 Discov num WSI  36 Comp Coord arcsec 2000 18 48 01.69 -18 17 27.0
Date first 1916 Date last 2014 Obs 12
Pa first 260 Pa last 261.6 P.A. Now (θ) 261.6°
Sep first 16.2 Sep last 15.773 Sep. Now (ρ) 15.773"
Mag pri 11.00 Mag sec 10.89 delta mag (ΔM) 0.11 Spectral class
Pri motion ra -001 Sec motion ra +003
Pri motion dec -006 Sec motion dec -008
Notes
rPM=0.523
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6285-03880-1 Gaia DR2 4098450144002855680
 
 
WDS 18480-1817 WSI 36 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
WSI (Washington Speckle Interferometer)
WSI1997 Su j Douglass, G.G., Hindsley, R.B., & Worley, C.E. 1997ApJS..111..289D
WSI1997 +Ma ApJS 111, 289, 1997
WSI1999a Su j Germain, M.E., Douglass, G.G., & Worley, C.E. 1999AJ....117.1905G
WSI1999a AJ 117, 1905, 1999
WSI1999b Su j Germain, M.E., Douglass, G.G., & Worley, C.E. 1999AJ....117.2511G
WSI1999b AJ 117, 2511, 1999
WSI1999c Su j Douglass, G.G., Mason, B.D., Germain, M.E., & Worley, C.E. 1999AJ....118.1395D
WSI1999c AJ 118, 1395, 1999
WSI2000a Su j Douglass, G.G., Mason, B.D., Rafferty, T.J., Holdenried, E.R., & Germain, M.E. 2000AJ....119.3071M
WSI2000a AJ 119, 3071, 2000
WSI2000b Su j Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L., 2000AJ....120.1120M
WSI2000b Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
WSI2000b AJ 120, 1120, 2000
WSI2001a Su j Germain, M.E. & Douglass, G.G. 2001AJ....121.2239M
WSI2001a AJ 121, 2239, 2001
WSI2001b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I., 2001AJ....122.1586M
WSI2001b Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
WSI2001b AJ 122, 1586, 2001
WSI2002 Su j Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M., 2002AJ....124.2254M
WSI2002 Hennessy, G.S., Platais, I., et al.
WSI2002 AJ 124, 2254, 2002
WSI2004a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M., 2004AJ....127..539M
WSI2004a +orb Hennessy, G.S., Rafferty, T.J., et al.
WSI2004a AJ 127, 539, 2004
WSI2004b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Rafferty, T.J., Urban, S., & Flagg, L. 2004AJ....128.3012M
WSI2004b +orb AJ 128, 3012, 2004
WSI2006a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Rafferty, T.J. 2006AJ....131.2687M
WSI2006a AJ 131, 2687, 2006
WSI2006b Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Holdenried, E.R. 2006AJ....132.2219M
WSI2006b +orb AJ 132, 2219, 2006
WSI2007a Su j Mason, B.D., Hartkopf, W.I., Wycoff, G.L., & Wieder, G. 2007AJ....134.1671M
WSI2007a +Cu AJ 134, 1671, 2007
WSI2008 Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2008AJ....136.2223M
WSI2008 AJ 136, 2223, 2008
WSI2010 Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2010AJ....140..480M
WSI2010 AJ 140, 480, 2010
WSI2011 Su j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2011AJ....141..157M
WSI2011 AJ 141, 157, 2011
WSI2011b Cu j Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. 2011AJ....142...46M
WSI2011b AJ 142, 46, 2011
WSI2012 Cu j Mason, B.D., Hartkopf, W.I., & Friedman, E.A. 2012AJ....143..124M
WSI2012 +lin AJ 143, 124, 2012
WSI2013 Cu j Mason, B.D., Hartkopf, W.I., & Hurowitz, H.M. 2013AJ....146...56M
WSI2013 +orb AJ 146, 56, 2013
WSI2013 +lin
WSI2013b Cu j Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. 2013AJ....146...76H
WSI2013b +Su AJ 146, 76, 2013 (speckle measures in UCAC doubles paper UC_2013b)
WSI2015 Cu j Hartkopf, W.I. & Mason, B.D. 2015AJ....150..130H
WSI2015 +orb AJ 150, 136, 2015
WSI2015 +lin
WSI2017a Cu j Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian, 2017AJ....153...20M
WSI2017a C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
WSI2017a AJ 153, 20, 2017
WSI2017b Su j Mason, B.D. & Hartkopf, W.I. 2017AJ....154..183M
WSI2017b +Cu AJ 154, 183, 2017
WSI2017b +E+
WSI2017b +H+
WSI2017b +Pa
WSI2017b +Zc
WSI2018a Su j Mason, B.D., Hartkopf, W.I., Urban, S.E. & Josties, J.D. 2018AJ....156..240M
WSI2018a +Cu AJ 156, 240, 2018
WSI2018a +E
WSI2021 Su j Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice, 2021AJ....162...53M
WSI2021 +Cu M., Kilian, C.M. & Warner, R.
WSI2021 AJ 162, 53, 2021
WSI2025 Su j Mason, B.D., et al. ...................
WSI2025 in preparation
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18480-1817 WSI 36 2005 6 262 15.6 11.00 10.89 D 184801.69-181727.0
18480-1817 WSI 36 2012 8 262 15.7 11.00 10.89 D 184801.69-181727.0
18480-1817 WSI 36 2014 12 262 15.8 11.00 10.89 184801.69-181727.0

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

 
 
WDS 18480-1817 WSI 36 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18480-1817 WSI 36 : MEASURES
 
 
No records found.

 
 
WDS 18480-1817 : VIRTUAL EYEPIECE
 
 

18480-1817 WSI 36A mag 11 18480-1817 WSI 36B sep 15.0 P.A. 261.20 mag 10.89 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 18480-1817 : ALADIN DSS IMAGE @ 18h 48m 01.69s -18° 17' 27.0"
 
 
 
 
WDS 18480-1817 WSI 36 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18480-1817 WSI 36 distance=0' 18482-1820 J 1636 distance=2' 18480-1814 RST3198 distance=4' 18488-1836 KUI 88 distance=22' 18488-1838 RSS 491 distance=24' 18500-1826 J 1658 distance=30' 18498-1836 TDT1075 distance=32' 18503-1812 TDT1080 distance=33' 18494-1750 HJ 2840 distance=35' 18505-1818 TDT1081 distance=36' 18506-1813 RST3200 distance=38' 18494-1740 TDT1072 distance=43' 18496-1854 OCC 454 distance=44' 18510-1747 HJ 2842 distance=53' 18496-1909 OCC 455AB distance=56' 18470-1912 HJ 2837 distance=56' 18442-1733 HLD 146 distance=71' 18487-1702 J 2235BC distance=75' 18429-1829 ARA 488 distance=76' 18531-1838 HO 569AB distance=76' 18531-1838 OCC9186Aa,Ab distance=76' 18487-1702 J 2235AB distance=76' 18516-1719 HU 255 distance=79' 18483-1935 B 2461 distance=79' 18500-1933 KPP4124 distance=81' 18479-1936 J 1657 distance=81' 18435-1725 RST3194 distance=84' 18526-1909 ARA 764 distance=84' 18465-1940 BRT1543 distance=85' 18528-1725 HU 257 distance=86' 18496-1654 HWE 44AB distance=87' 18496-1654 HWE 44AC distance=87' 18496-1654 KNP 3AD distance=87' 18498-1655 TDT4316 distance=87' 18480-1647 HJ 2838 distance=91' 18429-1917 OCC9184 distance=94' 18509-1646 HLD 148 distance=98' 18418-1909 J 2221AB distance=104' 18418-1909 J 2221AC distance=104' 18528-1658 J 2238 distance=105' 18477-1633 RST4020 distance=105' 18549-1733 RST3205AB distance=108' 18549-1733 HJ 2843AB,C distance=108' 18412-1731 FEN 34 distance=109' 18510-1958 ARA1162AB distance=110' 18510-1958 FYM 269AC distance=110' 18510-1958 FYM 269AD distance=110' 18553-1738 HJ 2844 distance=112' 18441-1954 ARA1160 distance=113' 18439-1954 STN 44 distance=113' 18536-1941 RST3203 distance=116' 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 18480-1817 WSI 36 262 15.8
Show 18482-1820 J 1636 78 7.1 2
Show 18480-1814 RST3198 154 0.4 4
Show 18488-1836 KUI 88 153 0.5 22
Show 18488-1838 RSS 491 334 10.8 24
Show 18500-1826 J 1658 59 8.4 30
Show 18498-1836 TDT1075 97 0.5 32
Show 18503-1812 TDT1080 134 0.9 33
Show 18494-1750 HJ 2840 173 15.2 35
Show 18505-1818 TDT1081 75 0.5 36
Show 18506-1813 RST3200 0.7 38
Show 18494-1740 TDT1072 310 0.7 43
Show 18496-1854 OCC 454 -1 0.1 44
Show 18510-1747 HJ 2842 338 29.9 53
Show 18496-1909 OCC 455 AB -1 0.2 56
Show 18470-1912 HJ 2837 89 11.2 56
Show 18442-1733 HLD 146 194 2.2 71
Show 18487-1702 J 2235 BC 5 6.6 75
Show 18429-1829 ARA 488 167 20.8 76
Show 18531-1838 HO 569 AB 38 15.6 76
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 76
Show 18487-1702 J 2235 AB 203 90.0 76
Show 18516-1719 HU 255 166 1.4 79
Show 18483-1935 B 2461 197 6.7 79
Show 18500-1933 KPP4124 15 1.5 81
Show 18479-1936 J 1657 28 3.6 81
Show 18435-1725 RST3194 87 4.0 84
Show 18526-1909 ARA 764 221 10.8 84
Show 18465-1940 BRT1543 258 3.3 85
Show 18528-1725 HU 257 341 2.1 86
Show 18496-1654 HWE 44 AB 298 2.0 87
Show 18496-1654 HWE 44 AC 308 36.4 87
Show 18496-1654 KNP 3 AD 200 22.2 87
Show 18498-1655 TDT4316 333 45.1 87
Show 18480-1647 HJ 2838 335 33.4 91
Show 18429-1917 OCC9184 -1 0.1 94
Show 18509-1646 HLD 148 30 5.0 98
Show 18418-1909 J 2221 AB 254 7.5 104
Show 18418-1909 J 2221 AC 346 17.9 104
Show 18528-1658 J 2238 182 4.8 105
Show 18477-1633 RST4020 26 3.5 105
Show 18549-1733 RST3205 AB 300 0.5 108
Show 18549-1733 HJ 2843 AB,C 339 22.0 108
Show 18412-1731 FEN 34 325 3.8 109
Show 18510-1958 ARA1162 AB 290 10.3 110
Show 18510-1958 FYM 269 AC 179 7.0 110
Show 18510-1958 FYM 269 AD 342 16.7 110
Show 18553-1738 HJ 2844 105 23.7 112
Show 18441-1954 ARA1160 184 8.4 113
Show 18439-1954 STN 44 316 1.6 113
Show 18536-1941 RST3203 330 0.6 116

 
 
WDS 18480-1817 : COMPONENTS
 
 
  A
B pa=261.2°
sep=14.99"
 
 
18480-1817 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184801.69-181727.0 Mag 11 PmRA -1.00
PmDE -6.0 Tycho2 6285-03880-1
Tycho2
Tycho2 6285-03880-1 Pflag RAmdeg 282.00704914 DEmdeg -18.29082841
PmRA 2.1 PmDE -9.3 E RAmdeg 43 E DEmdeg 64
E pmRA 2.6 E pmDE 2.8 EpRAm 1988.04 EpDEm 1983.86
Num 3 Q RAmdeg 0.9 Q DEmdeg 1.8 Q pmRA 0.9
Q pmDE 1.9 BTmag 11.253 E BTmag 0.079 VTmag 11.003
E VTmag 0.100 Prox 158 TYC T HIP
CCDM RAdeg 282.00704417 DEdeg -18.29080694 EpRA 1990 1.84
EpDE 1990 1.73 E RAdeg 44.4 E DEdeg 67.6 Posflg
Corr 0.1
 
 
18480-1817 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184800.65-181729.3 Mag 10.89 PmRA 3.00
PmDE -8.0 Tycho2 6285-03881-1 Calc delta mag 0.11 Calc coord yes
Tycho2
Tycho2 6285-03881-1 Pflag RAmdeg 282.00247080 DEmdeg -18.29144609
PmRA 1.9 PmDE -5.5 E RAmdeg 40 E DEmdeg 61
E pmRA 2.6 E pmDE 2.8 EpRAm 1988.53 EpDEm 1984.67
Num 3 Q RAmdeg 1.1 Q DEmdeg 0.1 Q pmRA 1.2
Q pmDE 0.1 BTmag 11.137 E BTmag 0.072 VTmag 10.886
E VTmag 0.094 Prox 158 TYC T HIP
CCDM RAdeg 282.00246639 DEdeg -18.29143333 EpRA 1990 1.85
EpDE 1990 1.73 E RAdeg 40.7 E DEdeg 64.3 Posflg
Corr 0.1