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Current system
18480-1814
RST 3198
HD 173805


Nearby doubles
4' : 18482-1820
J 1636

4' : 18480-1817
WSI 36

25' : 18488-1836
KUI 88

28' : 18488-1838
RSS 491

32' : 18494-1750
HJ 2840

32' : 18500-1826
J 1658

33' : 18503-1812
TDT1080

35' : 18498-1836
TDT1075

37' : 18505-1818
TDT1081

38' : 18506-1813
RST3200

40' : 18494-1740
TDT1072

47' : 18496-1854
OCC 454

51' : 18510-1747
HJ 2842

60' : 18470-1912
HJ 2837

60' : 18496-1909
OCC 455AB

68' : 18442-1733
HLD 146

73' : 18487-1702
J 2235AB

76' : 18429-1829
ARA 488

76' : 18516-1719
HU 255

78' : 18531-1838
HO 569AB

81' : 18435-1725
RST3194

83' : 18483-1935
B 2461

83' : 18496-1654
HWE 44AB

83' : 18498-1655
TDT4316

84' : 18528-1725
HU 257

85' : 18500-1933
KPP4124



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

18480-1814 RST 3198 (HD 173805)

 
 
18h 47m 58.42s -18° 13' 43.3" P.A. 154.00 sep 0.4 mag 7.75,9.00 Sp F2+A2 dist. 495.05 pc (1614.85 l.y.)
 
 
Coord 2000 18480-1814 Discov num RST3198 Comp Coord arcsec 2000 18 47 58.42 -18 13 43.3
Date first 1934 Date last 2008 Obs 10
Pa first 161 Pa last 154 P.A. Now (θ) 154°
Sep first 0.4 Sep last 0.448 Sep. Now (ρ) 0.448"
Mag pri 7.75 Mag sec 9.00 delta mag (ΔM) 1.25 Spectral class F2+A2 (yellow-white/white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec -003 Sec motion dec -003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173805 Constellation Sagittarius SAO 161834 HIP 92245
Tycho2 6284-00876-1 Gaia DR2 4098474741231257344 HD 173805 BD BD-18 5070
Distance 495.05 Distance ly 1614.85
 
 
WDS 18480-1814 RST 3198 (HD 173805) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18480-1814 RST3198 1991 9 151 0.4 7.75 9.00 F2+A2 -18 5070 D 184758.42-181343.3
18480-1814 RST3198 2008 10 154 0.4 7.75 9.00 F2+A2 -18 5070 D 184758.42-181343.3

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

 
 
WDS 18480-1814 RST 3198 (HD 173805) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18480-1814 RST 3198 (HD 173805) : MEASURES
 
 
No records found.

 
 
WDS 18480-1814 (HD 173805) : VIRTUAL EYEPIECE
 
 

18480-1814 RST3198A mag 7.75 Sp F2 18480-1814 RST3198B sep 0.5 P.A. 154.00 mag 9 Sp A2 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 18480-1814 (HD 173805) : ALADIN DSS IMAGE @ 18h 47m 58.42s -18° 13' 43.3"
 
 
 
 
WDS 18480-1814 RST 3198 (HD 173805) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18480-1814 RST3198 distance=0' 18482-1820 J 1636 distance=4' 18480-1817 WSI 36 distance=4' 18488-1836 KUI 88 distance=25' 18488-1838 RSS 491 distance=28' 18494-1750 HJ 2840 distance=32' 18500-1826 J 1658 distance=32' 18503-1812 TDT1080 distance=33' 18498-1836 TDT1075 distance=35' 18505-1818 TDT1081 distance=37' 18506-1813 RST3200 distance=38' 18494-1740 TDT1072 distance=40' 18496-1854 OCC 454 distance=47' 18510-1747 HJ 2842 distance=51' 18470-1912 HJ 2837 distance=60' 18496-1909 OCC 455AB distance=60' 18442-1733 HLD 146 distance=68' 18487-1702 J 2235BC distance=71' 18487-1702 J 2235AB distance=73' 18429-1829 ARA 488 distance=76' 18516-1719 HU 255 distance=76' 18531-1838 HO 569AB distance=78' 18531-1838 OCC9186Aa,Ab distance=78' 18435-1725 RST3194 distance=81' 18483-1935 B 2461 distance=83' 18496-1654 HWE 44AB distance=83' 18496-1654 HWE 44AC distance=83' 18496-1654 KNP 3AD distance=83' 18498-1655 TDT4316 distance=83' 18528-1725 HU 257 distance=84' 18500-1933 KPP4124 distance=85' 18479-1936 J 1657 distance=85' 18526-1909 ARA 764 distance=87' 18480-1647 HJ 2838 distance=88' 18465-1940 BRT1543 distance=88' 18509-1646 HLD 148 distance=95' 18429-1917 OCC9184 distance=96' 18477-1633 RST4020 distance=102' 18528-1658 J 2238 distance=102' 18418-1909 J 2221AB distance=105' 18418-1909 J 2221AC distance=105' 18412-1731 FEN 34 distance=107' 18549-1733 RST3205AB distance=107' 18549-1733 HJ 2843AB,C distance=107' 18553-1738 HJ 2844 distance=111' 18510-1958 ARA1162AB distance=114' 18510-1958 FYM 269AC distance=114' 18510-1958 FYM 269AD distance=114' 18457-1624 J 1656 distance=115' 18439-1954 STN 44 distance=115' 18441-1954 ARA1160 distance=115' 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 18480-1814 RST3198 154 0.4 0
Show 18482-1820 J 1636 78 7.1 4
Show 18480-1817 WSI 36 262 15.8 4
Show 18488-1836 KUI 88 145 0.4 25
Show 18488-1838 RSS 491 334 10.8 28
Show 18494-1750 HJ 2840 173 15.2 32
Show 18500-1826 J 1658 58 8.5 32
Show 18503-1812 TDT1080 271 3.0 33
Show 18498-1836 TDT1075 97 0.5 35
Show 18505-1818 TDT1081 67 2.1 37
Show 18506-1813 RST3200 0 0.7 38
Show 18494-1740 TDT1072 309 0.7 40
Show 18496-1854 OCC 454 -1 0.1 47
Show 18510-1747 HJ 2842 338 29.9 51
Show 18470-1912 HJ 2837 89 11.2 60
Show 18496-1909 OCC 455 AB -1 0.2 60
Show 18442-1733 HLD 146 194 2.2 68
Show 18487-1702 J 2235 BC 5 6.6 71
Show 18487-1702 J 2235 AB 203 90.0 73
Show 18429-1829 ARA 488 167 20.8 76
Show 18516-1719 HU 255 166 1.4 76
Show 18531-1838 HO 569 AB 37 15.4 78
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 78
Show 18435-1725 RST3194 87 4.0 81
Show 18483-1935 B 2461 197 6.7 83
Show 18496-1654 HWE 44 AB 298 2.0 83
Show 18496-1654 HWE 44 AC 308 36.4 83
Show 18496-1654 KNP 3 AD 200 22.2 83
Show 18498-1655 TDT4316 333 45.1 83
Show 18528-1725 HU 257 341 2.1 84
Show 18500-1933 KPP4124 15 1.5 85
Show 18479-1936 J 1657 28 3.6 85
Show 18526-1909 ARA 764 221 10.8 87
Show 18480-1647 HJ 2838 335 33.4 88
Show 18465-1940 BRT1543 258 3.3 88
Show 18509-1646 HLD 148 30 5.0 95
Show 18429-1917 OCC9184 -1 0.1 96
Show 18477-1633 RST4020 26 3.5 102
Show 18528-1658 J 2238 182 4.8 102
Show 18418-1909 J 2221 AB 254 7.5 105
Show 18418-1909 J 2221 AC 346 17.9 105
Show 18412-1731 FEN 34 325 3.8 107
Show 18549-1733 RST3205 AB 300 0.5 107
Show 18549-1733 HJ 2843 AB,C 339 22.0 107
Show 18553-1738 HJ 2844 105 23.7 111
Show 18510-1958 ARA1162 AB 290 10.3 114
Show 18510-1958 FYM 269 AC 179 7.0 114
Show 18510-1958 FYM 269 AD 342 16.7 114
Show 18457-1624 J 1656 287 7.6 115
Show 18439-1954 STN 44 316 1.6 115
Show 18441-1954 ARA1160 184 8.4 115

 
 
WDS 18480-1814 : COMPONENTS
 
 
  A
B pa=154.0°
sep=0.45"
 
 
18480-1814 A
 
 
Name HD 173805 Coord arcsec 2000 184758.42-181343.3 Mag 7.75 Spectral class F2 (yellow-white)
PmRA -3.00 PmDE -3.0 SAO 161834 HIP 92245
Tycho2 6284-00876-1 HD 173805 BD BD-18 5070
Tycho2
Tycho2 6284-00876-1 Pflag RAmdeg 281.99341510 DEmdeg -18.22872769
PmRA -3.1 PmDE -2.6 E RAmdeg 5 E DEmdeg 7
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.47 EpDEm 1991.06
Num 7 Q RAmdeg 0.8 Q DEmdeg 1.3 Q pmRA 0.9
Q pmDE 1.2 BTmag 8.576 E BTmag 0.018 VTmag 7.502
E VTmag 0.012 Prox 999 TYC T HIP 92245
CCDM AB RAdeg 281.99342250 DEdeg -18.22872194 EpRA 1990 1.81
EpDE 1990 1.72 E RAdeg 5.0 E DEdeg 6.7 Posflg P
Corr 0.0
SAO
SAO 161834 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0 Vmag 7.8 SpType +++
Double code Source 22 CatNum 7900 DM BD-18 5070
DMcomp BDsup HD 173805 M HD 9
GC RA1950rad 4.90895988 DE1950rad -0.31913164 PmRA2000 0
PmDE2000 0.001
Hipparcos
Catalog H HIP 92245 Proxy H RAhms 18 47 58.42
DEdms -18 13 43.3 Vmag 7.29 VarFlag R Vmag H
RAdeg 281.993 DEdeg -18.2287 AstroRef A Plx 0.9
CCDM -1.44 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 154 Rho 0.422 HD BD BD-18 5070
CD CP Dm number -18 5070 VIred 0.89
SpType B2:IV/V R SpType Coord arcsec 2000 184758.42-181343.3
Hipparcos 2
HIP 92245 Sn 15 So 3 Nc 2
RArad 4.9217133798 DErad -0.3181505724 Plx -2.02 PmRA -4.16
PmDE -1.55 E RArad 0.96 E DErad 0.58 E Plx 1.08
E pmRA 1.36 E pmDE 1 Hpmag E Hpmag 0.0017
SHp 0.01 VA 0 BV 0.901 E BV 0.011
VI 0.9
CCDM
Ccdm 18480-1814 RComp Comp A Note1
Note2 Discov num DRAs -1.59 DDEs 16.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp F2 PmNote *
PmRA -1 PmDE 0 Dm number -18 5070 Cat1 BD
Name2 161834 Cat2 SAO HD 173805 M HD
ADS BDS M ADS BDS N IDS IDS 18421S1820A
HIC 92245
 
 
18480-1814 B
 
 
Coord arcsec 2000 184758.43-181343.7 Mag 9 Spectral class A2 (white) PmRA -3.00
PmDE -3.0 Delta magnitude 1.25 Coordinate calculated yes
CCDM
Ccdm 18480-1814 RComp Comp B Note1
Note2 Discov num RST3198 DRAs DDEs
R dRAs Year 1944 Theta 156 Rho 0.4
Obs 5 Vmag 9.0 Sp A2 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD 173806 M HD
ADS BDS M ADS BDS N N IDS IDS 18421S1820B
HIC 92245