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Doubles in session


Current system
18487-1702
J 2235 AB
HD 173927


Nearby doubles
15' : 18496-1654
HWE 44AB

17' : 18498-1655
TDT4316

19' : 18480-1647
HJ 2838

32' : 18509-1646
HLD 148

34' : 18477-1633
RST4020

40' : 18494-1740
TDT1072

45' : 18516-1719
HU 255

49' : 18494-1750
HJ 2840

56' : 18510-1747
HJ 2842

57' : 18457-1624
J 1656

60' : 18528-1658
J 2238

63' : 18528-1725
HU 257

70' : 18529-1625
RST4021

71' : 18442-1733
HLD 146

73' : 18480-1814
RST3198

73' : 18530-1623
RST4022

73' : 18503-1812
TDT1080

74' : 18444-1623
HJ 2835

76' : 18482-1820
J 1636

76' : 18506-1813
RST3200

76' : 18480-1817
WSI 36

79' : 18435-1725
RST3194

81' : 18505-1818
TDT1081

87' : 18500-1826
J 1658

94' : 18549-1733
RST3205AB

94' : 18488-1836
KUI 88



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

18487-1702 J 2235 AB (HD 173927)

 
 
18h 48m 44.16s -17° 02' 08.6" P.A. 203.00 sep 90.0 mag 8.30,11.55 Sp G7III/IV
 
 
Coord 2000 18487-1702 Discov num J  2235 Comp AB Coord arcsec 2000 18 48 44.16 -17 02 08.6
Date first 1916 Date last 2015 Obs 10
Pa first 203 Pa last 203.1 P.A. Now (θ) 203.1°
Sep first 89.3 Sep last 89.96 Sep. Now (ρ) 89.96"
Mag pri 8.30 Mag sec 11.55 delta mag (ΔM) 3.25 Spectral class G7III/IV (yellow)
Pri motion ra +000 Sec motion ra +004
Pri motion dec -008 Sec motion dec -013
Notes N (See Notes)
rPM=0.471
Nature of this double is uncertain.
 
 
18487-1702 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 173927 161849 18 48 44 -17 02 09 J 2235 AB 2015 10 203 90.0 8.30 11.55 3.25 <===
Show 18 48 42 -17 03 31 J 2235 BC 2016 7 5 6.6 11.55 13.20 1.65
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173927 Constellation Sagittarius SAO 161849 Tycho2 6285-04369-1
Gaia DR2 4099173622655582848 HD 173927
 
 
WDS 18487-1702 J 2235 AB (HD 173927) : NOTES
 
 
discov_num notes refcode
J 2235 Spectrum: G6/8III/IV.
 
 
DISCOVERER
 
 
discov author
J Jonckheere, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18487-1702 J 2235 AB 1998 6 203 90.1 8.30 11.55 -17 5324 N D 184844.16-170208.6
18487-1702 J 2235 AB 1999 7 203 90.1 8.30 11.55 -17 5324 N D 184844.16-170208.6
18487-1702 J 2235 AB 2015 8 203 90.0 8.30 11.55 G7III/IV -17 5324 N 184844.16-170208.6

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

 
 
WDS 18487-1702 J 2235 AB (HD 173927) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18487-1702 J 2235 AB (HD 173927) : MEASURES
 
 
No records found.

 
 
WDS 18487-1702 (HD 173927) : VIRTUAL EYEPIECE
 
 

18487-1702 J 2235A mag 8.3 Sp G7III/IV 18487-1702 J 2235B sep 89.7 P.A. 203.40 mag 11.55 18487-1702 J 2235C sep 83.5 P.A. 204.80 mag 13.2 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 18487-1702 (HD 173927) : ALADIN DSS IMAGE @ 18h 48m 44.16s -17° 02' 08.6"
 
 
 
 
WDS 18487-1702 J 2235 AB (HD 173927) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18487-1702 J 2235AB distance=1' 18487-1702 J 2235BC distance=2' 18496-1654 HWE 44AB distance=15' 18496-1654 HWE 44AC distance=15' 18496-1654 KNP 3AD distance=15' 18498-1655 TDT4316 distance=17' 18480-1647 HJ 2838 distance=19' 18509-1646 HLD 148 distance=32' 18477-1633 RST4020 distance=34' 18494-1740 TDT1072 distance=40' 18516-1719 HU 255 distance=45' 18494-1750 HJ 2840 distance=49' 18510-1747 HJ 2842 distance=56' 18457-1624 J 1656 distance=57' 18528-1658 J 2238 distance=60' 18528-1725 HU 257 distance=63' 18529-1625 RST4021 distance=70' 18442-1733 HLD 146 distance=71' 18480-1814 RST3198 distance=73' 18530-1623 RST4022 distance=73' 18503-1812 TDT1080 distance=73' 18444-1623 HJ 2835 distance=74' 18482-1820 J 1636 distance=76' 18506-1813 RST3200 distance=76' 18480-1817 WSI 36 distance=76' 18435-1725 RST3194 distance=79' 18505-1818 TDT1081 distance=81' 18500-1826 J 1658 distance=87' 18549-1733 RST3205AB distance=94' 18549-1733 HJ 2843AB,C distance=94' 18488-1836 KUI 88 distance=94' 18498-1836 TDT1075 distance=96' 18488-1838 RSS 491 distance=96' 18557-1646 J 1661 distance=101' 18553-1738 HJ 2844 distance=101' 18461-1529 HU 251 distance=102' 18555-1626 ARA 112 distance=104' 18551-1609 BRT 634 distance=105' 18442-1539 BRT 633 distance=105' 18555-1623 SOZ 18 distance=106' 18559-1735 HJ 2845 distance=108' 18560-1637 J 1662 distance=111' 18412-1731 FEN 34 distance=113' 18496-1854 OCC 454 distance=113' 18437-1534 J 2224 distance=114' 18427-1547 HU 250 distance=115' 18531-1838 HO 569AB distance=115' 18531-1838 OCC9186Aa,Ab distance=115' 18517-1511 TDT1092 distance=119' 18429-1829 ARA 488 distance=122' 18453-1509 BRT 594 distance=125' 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 18487-1702 J 2235 AB 203 90.0 1
Show 18487-1702 J 2235 BC 5 6.6 2
Show 18496-1654 HWE 44 AB 298 2.0 15
Show 18496-1654 HWE 44 AC 308 36.4 15
Show 18496-1654 KNP 3 AD 200 22.2 15
Show 18498-1655 TDT4316 333 45.1 17
Show 18480-1647 HJ 2838 335 33.4 19
Show 18509-1646 HLD 148 30 5.0 32
Show 18477-1633 RST4020 26 3.5 34
Show 18494-1740 TDT1072 309 0.7 40
Show 18516-1719 HU 255 166 1.4 45
Show 18494-1750 HJ 2840 173 15.2 49
Show 18510-1747 HJ 2842 338 29.9 56
Show 18457-1624 J 1656 287 7.6 57
Show 18528-1658 J 2238 182 4.8 60
Show 18528-1725 HU 257 341 2.1 63
Show 18529-1625 RST4021 118 0.2 70
Show 18442-1733 HLD 146 194 2.2 71
Show 18480-1814 RST3198 154 0.4 73
Show 18530-1623 RST4022 312 0.4 73
Show 18503-1812 TDT1080 271 3.0 73
Show 18444-1623 HJ 2835 303 15.3 74
Show 18482-1820 J 1636 78 7.1 76
Show 18506-1813 RST3200 0 0.7 76
Show 18480-1817 WSI 36 262 15.8 76
Show 18435-1725 RST3194 87 4.0 79
Show 18505-1818 TDT1081 67 2.1 81
Show 18500-1826 J 1658 58 8.5 87
Show 18549-1733 RST3205 AB 300 0.5 94
Show 18549-1733 HJ 2843 AB,C 339 22.0 94
Show 18488-1836 KUI 88 145 0.4 94
Show 18498-1836 TDT1075 97 0.5 96
Show 18488-1838 RSS 491 334 10.8 96
Show 18557-1646 J 1661 98 4.5 101
Show 18553-1738 HJ 2844 105 23.7 101
Show 18461-1529 HU 251 304 2.6 102
Show 18555-1626 ARA 112 176 10.7 104
Show 18551-1609 BRT 634 337 3.9 105
Show 18442-1539 BRT 633 42 4.8 105
Show 18555-1623 SOZ 18 142 17.7 106
Show 18559-1735 HJ 2845 6 3.9 108
Show 18560-1637 J 1662 191 4.5 111
Show 18412-1731 FEN 34 325 3.8 113
Show 18496-1854 OCC 454 -1 0.1 113
Show 18437-1534 J 2224 202 10.5 114
Show 18427-1547 HU 250 298 2.2 115
Show 18531-1838 HO 569 AB 37 15.4 115
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 115
Show 18517-1511 TDT1092 138 0.4 119
Show 18429-1829 ARA 488 167 20.8 122
Show 18453-1509 BRT 594 110 2.2 125

 
 
WDS 18487-1702 : COMPONENTS
 
 
  A B
B pa=203.4°
sep=89.66"
 
C pa=204.8°
sep=83.48"
pa=4.7°
sep=6.55"
 
 
18487-1702 A
 
 
Name HD 173927 Coord arcsec 2000 184844.16-170208.6 Mag 8.3 Spectral class G7III/IV (yellow)
PmRA 0.00 PmDE -8.0 SAO 161849 Tycho2 6285-04369-1
HD 173927 DM BD-17 5324
Tycho2
Tycho2 6285-04369-1 Pflag RAmdeg 282.18399935 DEmdeg -17.03571707
PmRA -0.7 PmDE -6.1 E RAmdeg 7 E DEmdeg 9
E pmRA 1.5 E pmDE 1.5 EpRAm 1990.87 EpDEm 1990.55
Num 9 Q RAmdeg 1.9 Q DEmdeg 1.0 Q pmRA 1.8
Q pmDE 1.1 BTmag 9.568 E BTmag 0.022 VTmag 8.299
E VTmag 0.013 Prox 496 TYC T HIP
CCDM RAdeg 282.18400083 DEdeg -17.03570194 EpRA 1990 1.74
EpDE 1990 1.64 E RAdeg 7.1 E DEdeg 9.3 Posflg
Corr 0.1
SAO
SAO 161849 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 -0.015 Vmag 8.5 SpType K0
Double code Source 21 CatNum 6935 DM BD-17 5324
DMcomp BDsup HD 173927 M HD 0
GC RA1950rad 4.91239609 DE1950rad -0.29832409 PmRA2000 -0.0007
PmDE2000 -0.014
CCDM
Ccdm 18487-1702 RComp Comp A Note1
Note2 Discov num DRAs 2.11 DDEs -9.2
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.3 Sp K0 PmNote *
PmRA -13 PmDE -15 Dm number -17 5324 Cat1 BD
Name2 161849 Cat2 SAO HD 173927 M HD
ADS BDS M ADS BDS N IDS IDS 18429S1709A
HIC
 
 
18487-1702 B
 
 
Coord arcsec 2000 184841.68-170330.9 Coord calc 184841.68-170330.9 Mag 11.55 PmRA 8.00
PmDE -14.0 Delta magnitude 3.25
CCDM
Ccdm 18487-1702 RComp Comp B Note1
Note2 Discov num J 2235 DRAs DDEs
R dRAs Year 1942 Theta 205 Rho
Obs 1 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18429S1709B
HIC
 
 
18487-1702 C
 
 
Coord arcsec 2000 184841.72-170324.4 Mag 13.2 Delta magnitude 4.9 Coordinate calculated yes
CCDM
Ccdm 18487-1702 RComp B Comp C Note1
Note2 Discov num J 2235 DRAs DDEs
R dRAs Year 1942 Theta 010 Rho 3.0
Obs 1 Vmag 14.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18429S1709C
HIC