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Doubles in session


Current system
18487-1702
J 2235 BC


Nearby doubles
16' : 18496-1654
HWE 44AB

19' : 18498-1655
TDT4316

20' : 18480-1647
HJ 2838

34' : 18509-1646
HLD 148

35' : 18477-1633
RST4020

39' : 18494-1740
TDT1072

45' : 18516-1719
HU 255

48' : 18494-1750
HJ 2840

55' : 18510-1747
HJ 2842

58' : 18457-1624
J 1656

60' : 18528-1658
J 2238

63' : 18528-1725
HU 257

70' : 18442-1733
HLD 146

71' : 18480-1814
RST3198

72' : 18529-1625
RST4021

72' : 18503-1812
TDT1080

74' : 18444-1623
HJ 2835

75' : 18530-1623
RST4022

75' : 18482-1820
J 1636

75' : 18480-1817
WSI 36

75' : 18506-1813
RST3200

78' : 18435-1725
RST3194

80' : 18505-1818
TDT1081

85' : 18500-1826
J 1658

93' : 18488-1836
KUI 88

94' : 18549-1733
RST3205AB



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.

18487-1702 J 2235 BC

 
 
18h 48m 41.68s -17° 03' 30.9" P.A. 5.00 sep 6.6 mag 11.55,16.00
 
 
Coord 2000 18487-1702 Discov num J  2235 Comp BC Coord arcsec 2000 18 48 41.68 -17 03 30.9
Date first 1942 Date last 2015 Obs 6
Pa first 10 Pa last 4.7 P.A. Now (θ) 4.7°
Sep first 4.0 Sep last 6.55 Sep. Now (ρ) 6.55"
Mag pri 11.55 Mag sec 16.00 delta mag (ΔM) 4.45 Spectral class
Pri motion ra +008 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes N (See Notes)
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 2015 6 5 6.6 11.55 16.00 4.45 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6285-03873-1 Gaia DR2 4099173412151274880
 
 
WDS 18487-1702 J 2235 BC : NOTES
 
 
discov_num notes refcode
J 2235 Spectrum: G6/8III/IV.
 
 
REFERENCES
 
 
refcode metd author reference
J__1908 Ma - Jonckheere, R. 1908BuAsI..25..458J
J__1908 Bull. Astronomique 25, 458, 1908
J__1909a Ma - Jonckheere, R. ...................
J__1909a Journal Astronomique 1, no. 1, 1, 1909
J__1909b Ma - Jonckheere, R. ...................
J__1909b Journal Astronomique 1, no. 2, 1909
J__1909c Ma - Jonckheere, R. ...................
J__1909c Journal Astronomique 1, no. 3, 1909
J__1910a Ma j Jonckheere, R. ...................
J__1910a Journal Astronomique 1, no. 4, 25, 1910
J__1910b Ma - Jonckheere, R. ...................
J__1910b Journal Astronomique 1, no. 5, 1910
J__1910c Ma j Jonckheere, R. ...................
J__1910c Journal Astronomique 1, no. 7, 1910
J__1910d Ma - Jonckheere, R. ...................
J__1910d Journal Astronomique 1, no. 7, 1910
J__1910e Ma j Jonckheere, R. ...................
J__1910e Journal Astronomique 1, no. 7, 1910
J__1910f Ma j Jonckheere, R. ...................
J__1910f Journal Astronomique 1, no. 10, 77, 1910
J__1910g Ma - Jonckheere, R. ...................
J__1910g Journal Astronomique 1, no. 11, 81, 1910
J__1910h Ma j Jonckheere, R. ...................
J__1910h Journal Astronomique 1, no. 12, 89, 1910
J__1910i Ma j Jonckheere, R. ...................
J__1910i Journal Astronomique 1, no. 13, 98, 1910
J__1911a Ma - Jonckheere, R. ...................
J__1911a Journal Astronomique 1, no. 15, 114, 1911
J__1911b Ma j Jonckheere, R. ...................
J__1911b Journal Astronomique 1, no. 16, 121, 1911
J__1911c Ma j Jonckheere, R. 1911MNRAS..71..750J
J__1911c MNRAS 71, 750, 1911
J__1911d Ma - Jonckheere, R. 1911MNRAS..72...45J
J__1911d MNRAS 72, 45, 1911
J__1911e Ma - Jonckheere, R. 1911MNRAS..72..156J
J__1911e MNRAS 72, 156, 1911
J__1911f Ma j Jonckheere, R. 1911MNRAS..72..162J
J__1911f MNRAS 72, 162, 1911
J__1912a Ma j Jonckheere, R. 1912MNRAS..72..188J
J__1912a MNRAS 72, 188, 1912
J__1912b Ma j Jonckheere, R. ...................
J__1912b Journal Astronomique 1, no. 17, 129, 1912
J__1912c Ma - Jonckheere, R. ...................
J__1912c Journal Astronomique 1, no. 19, 134, 1912
J__1912d Ma j Jonckheere, R. ...................
J__1912d Journal Astronomique 1, no. 21, 145, 1912
J__1912e Ma - Jonckheere, R. ...................
J__1912e Journal Astronomique 1, no. 22, 148, 1912
J__1912f Ma j Jonckheere, R. ...................
J__1912f Journal Astronomique 1, no. 23, 150, 1912
J__1912g Ma j Jonckheere, R. ...................
J__1912g Journal Astronomique 2, no. 25, 1, 1912
J__1912h Ma - Jonckheere, R. ...................
J__1912h Journal Astronomique 2, no. 26, 5, 1912
J__1913a Ma j Jonckheere, R. ...................
J__1913a Journal Astronomique 2, no. 27, 9, 1913
J__1913b Ma j Jonckheere, R. ...................
J__1913b Journal Astronomique 2, no. 28, 13, 1913
J__1914 Ma - Jonckheere, R. ...................
J__1914 Journal Astronomique 2, no. 29, 18, 1914
J__1917a Ma - Jonckheere, R. 1917MmRAS..61....1J
J__1917a MemRAS 61, 1, 1917
J__1917c Ma j Jonckheere, R. 1917AJ.....31....1J
J__1917c AJ 31, 1, 1917
J__1918 Ma - Jonckheere, R. 1918AJ.....31..113J
J__1918 AJ 31, 113, 1918
J__1918b Ma j Jonckheere, R. 1918MNRAS..78..479J
J__1918b MNRAS 78, 479, 1918
J__1919 Ma j Jonckheere, R. 1919AJ.....32...65J
J__1919 AJ 32, 65, 1919
J__1920 Ma - Jonckheere, R. 1920AJ.....32..166J
J__1920 AJ 32, 166, 1920
J__1924 Ma - Jonckheere, R. 1924AJ.....35..173J
J__1924 +Mb AJ 35, 173, 1924
J__1930 Ma j Jonckheere, R. 1930JO.....13...76J
J__1930 J. Obs. 13, 76, 1930
J__1941a Ma - Jonckheere, R. 1941JO.....24...21J
J__1941a J. Obs. 24, 21, 1941
J__1941b Ma - Jonckheere, R. 1941JO.....24...69J
J__1941b +Mb J. Obs. 24, 69, 1941
J__1941c Ma - Jonckheere, R. 1941JO.....24...93J
J__1941c +Mb J. Obs. 24, 93, 1941
J__1941d Ma - Jonckheere, R. 1941JO.....24..114J
J__1941d +Mb J. Obs. 24, 114, 1941
J__1942a Ma - Jonckheere, R. 1942JO.....25...11J
J__1942a J. Obs. 25, 11, 1942
J__1942b Ma - Jonckheere, R. 1942JO.....25...15J
J__1942b J. Obs. 25, 15, 1942
J__1942c Ma - Jonckheere, R. 1942JO.....25...25J
J__1942c +Mb J. Obs. 25, 25, 1942
J__1942d Mb - Jonckheere, R. 1942JO.....25...78J
J__1942d J. Obs. 25, 78, 1942
J__1943 Ma - Jonckheere, R. 1943JO.....26...28J
J__1943 +Mb J. Obs. 26, 28, 1943
J__1944a Ma j Jonckheere, R. 1944JO.....27....1J
J__1944a +Mb J. Obs. 27, 1, 1944
J__1944b Ma - Jonckheere, R. 1944JO.....27....5J
J__1944b J. Obs. 27, 5, 1944
J__1944c Mb - Jonckheere, R. 1944JO.....27....6J
J__1944c J. Obs. 27, 6, 1944
J__1944d Ma j Jonckheere, R. 1944JO.....27....7J
J__1944d +Mb J. Obs. 27, 7, 1944
J__1944e Ma - Jonckheere, R. 1944JO.....27...11J
J__1944e J. Obs. 27, 11, 1944
J__1945 Ma - Jonckheere, R. 1945JO.....28...26J
J__1945 +Mb J. Obs. 28, 26, 1945
J__1946 Mb j Jonckheere, R. 1946JO.....29...49J
J__1946 J. Obs. 29, 49, 1946
J__1948 Ma j Jonckheere, R. 1948JO.....31...65J
J__1948 J. Obs. 31, 65, 1948
J__1949a Ma j Jonckheere, R. 1949JO.....32...13J
J__1949a +Mb J. Obs. 32, 13, 1949
J__1949b Ma j Jonckheere, R. 1949JO.....32...81J
J__1949b +Mb J. Obs. 32, 81, 1949
J__1952 M+ j Jonckheere, R. 1952JO.....35...37J
J__1952 +Pa J. Obs. 35, 37, 1952
J__1953a Ma - Jonckheere, R. 1953JO.....36...44J
J__1953a J. Obs. 36, 44, 1953
J__1953b Mb j Jonckheere, R. 1953JO.....36...49J
J__1953b J. Obs. 36, 49, 1953
J__1954 Mb j Jonckheere, R. 1954JO.....37...13J
J__1954 J. Obs. 37, 13, 1954
J__1955 Mb - Jonckheere, R. 1955JO.....38..254J
J__1955 J. Obs. 38, 254, 1955
J__1957 Mb j Jonckheere, R. 1957JO.....40....1J
J__1957 J. Obs. 40, 1, 1957
J__1958 Mb j Jonckheere, R. 1958JO.....41..145J
J__1958 J. Obs. 41, 145, 1958
J__1962a M+ j Jonckheere, R. 1962QB821.J64......
J__1962a +Pa General Cat. of Double Stars, Marseille, 1962
J__1962b Ma - Jonckheere, R. (measure by Vanderdonck, J.) 1962QB821.J64......
J__1962b General Cat. of Double Stars, Marseille, 1962
J__1963A - Jonckheere, R. 1963icvd.book.....J
J__1963A cited in IDS (Lick Index Cat.), 1963
J__9999 Ma - Jonckheere, R. ...................
J__9999 +Pp 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
18487-1702 J 2235 BC 1942 1 10 4.0 11.55 16.00 N 184841.68-170330.9
18487-1702 J 2235 BC 2000 3 5 6.6 11.55 16.00 N 184841.68-170330.9
18487-1702 J 2235 BC 2015 5 5 6.6 11.55 16.00 N 184841.68-170330.9

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

 
 
WDS 18487-1702 J 2235 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18487-1702 J 2235 BC : MEASURES
 
 
No records found.

 
 
WDS 18487-1702 : 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 16 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 : ALADIN DSS IMAGE @ 18h 48m 41.68s -17° 03' 30.9"
 
 
 
 
WDS 18487-1702 J 2235 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18487-1702 J 2235BC distance=0' 18487-1702 J 2235AB distance=2' 18496-1654 HWE 44AB distance=16' 18496-1654 HWE 44AC distance=16' 18496-1654 KNP 3AD distance=16' 18498-1655 TDT4316 distance=19' 18480-1647 HJ 2838 distance=20' 18509-1646 HLD 148 distance=34' 18477-1633 RST4020 distance=35' 18494-1740 TDT1072 distance=39' 18516-1719 HU 255 distance=45' 18494-1750 HJ 2840 distance=48' 18510-1747 HJ 2842 distance=55' 18457-1624 J 1656 distance=58' 18528-1658 J 2238 distance=60' 18528-1725 HU 257 distance=63' 18442-1733 HLD 146 distance=70' 18480-1814 RST3198 distance=71' 18529-1625 RST4021 distance=72' 18503-1812 TDT1080 distance=72' 18444-1623 HJ 2835 distance=74' 18530-1623 RST4022 distance=75' 18482-1820 J 1636 distance=75' 18480-1817 WSI 36 distance=75' 18506-1813 RST3200 distance=75' 18435-1725 RST3194 distance=78' 18505-1818 TDT1081 distance=80' 18500-1826 J 1658 distance=85' 18488-1836 KUI 88 distance=93' 18549-1733 RST3205AB distance=94' 18549-1733 HJ 2843AB,C distance=94' 18498-1836 TDT1075 distance=95' 18488-1838 RSS 491 distance=95' 18553-1738 HJ 2844 distance=101' 18557-1646 J 1661 distance=102' 18461-1529 HU 251 distance=103' 18555-1626 ARA 112 distance=105' 18442-1539 BRT 633 distance=106' 18551-1609 BRT 634 distance=106' 18555-1623 SOZ 18 distance=107' 18559-1735 HJ 2845 distance=108' 18560-1637 J 1662 distance=112' 18412-1731 FEN 34 distance=112' 18496-1854 OCC 454 distance=112' 18531-1838 HO 569AB distance=114' 18531-1838 OCC9186Aa,Ab distance=114' 18437-1534 J 2224 distance=114' 18427-1547 HU 250 distance=115' 18429-1829 ARA 488 distance=120' 18517-1511 TDT1092 distance=121' 18453-1509 BRT 594 distance=126' 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 BC 5 6.6
Show 18487-1702 J 2235 AB 203 90.0 2
Show 18496-1654 HWE 44 AB 298 2.0 16
Show 18496-1654 HWE 44 AC 308 36.4 16
Show 18496-1654 KNP 3 AD 200 22.2 16
Show 18498-1655 TDT4316 333 45.1 19
Show 18480-1647 HJ 2838 335 33.4 20
Show 18509-1646 HLD 148 30 5.0 34
Show 18477-1633 RST4020 26 3.5 35
Show 18494-1740 TDT1072 310 0.7 39
Show 18516-1719 HU 255 166 1.4 45
Show 18494-1750 HJ 2840 173 15.2 48
Show 18510-1747 HJ 2842 338 29.9 55
Show 18457-1624 J 1656 287 7.6 58
Show 18528-1658 J 2238 182 4.8 60
Show 18528-1725 HU 257 341 2.1 63
Show 18442-1733 HLD 146 194 2.2 70
Show 18480-1814 RST3198 154 0.4 71
Show 18529-1625 RST4021 118 0.2 72
Show 18503-1812 TDT1080 134 0.9 72
Show 18444-1623 HJ 2835 303 15.3 74
Show 18530-1623 RST4022 312 0.4 75
Show 18482-1820 J 1636 78 7.1 75
Show 18480-1817 WSI 36 262 15.8 75
Show 18506-1813 RST3200 0.7 75
Show 18435-1725 RST3194 87 4.0 78
Show 18505-1818 TDT1081 75 0.5 80
Show 18500-1826 J 1658 59 8.4 85
Show 18488-1836 KUI 88 153 0.5 93
Show 18549-1733 RST3205 AB 300 0.5 94
Show 18549-1733 HJ 2843 AB,C 339 22.0 94
Show 18498-1836 TDT1075 97 0.5 95
Show 18488-1838 RSS 491 334 10.8 95
Show 18553-1738 HJ 2844 105 23.7 101
Show 18557-1646 J 1661 98 4.5 102
Show 18461-1529 HU 251 304 2.6 103
Show 18555-1626 ARA 112 176 10.7 105
Show 18442-1539 BRT 633 42 4.8 106
Show 18551-1609 BRT 634 337 3.9 106
Show 18555-1623 SOZ 18 142 17.7 107
Show 18559-1735 HJ 2845 6 3.9 108
Show 18560-1637 J 1662 191 4.5 112
Show 18412-1731 FEN 34 325 3.8 112
Show 18496-1854 OCC 454 -1 0.1 112
Show 18531-1838 HO 569 AB 38 15.6 114
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 114
Show 18437-1534 J 2224 202 10.4 114
Show 18427-1547 HU 250 298 2.2 115
Show 18429-1829 ARA 488 167 20.8 120
Show 18517-1511 TDT1092 138 0.4 121
Show 18453-1509 BRT 594 110 2.2 126

 
 
WDS 18487-1702 : COMPONENTS
 
 
  A B
B pa=203.4°
sep=89.66"
 
C pa=204.8°
sep=83.49"
pa=4.5°
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 Tycho2 6285-03873-1 Calc delta mag 3.25
Tycho2
Tycho2 6285-03873-1 Pflag RAmdeg 282.17366678 DEmdeg -17.05860867
PmRA -6.7 PmDE -7.4 E RAmdeg 75 E DEmdeg 98
E pmRA 3.2 E pmDE 3.5 EpRAm 1983.46 EpDEm 1978.97
Num 3 Q RAmdeg 1.6 Q DEmdeg 0.7 Q pmRA 1.6
Q pmDE 0.7 BTmag 12.349 E BTmag 0.206 VTmag 11.548
E VTmag 0.145 Prox 882 TYC HIP
CCDM RAdeg 282.17368306 DEdeg -17.05859139 EpRA 1990 1.73
EpDE 1990 1.64 E RAdeg 80.4 E DEdeg 106.6 Posflg
Corr 0.0
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 16 Calc delta mag 7.7 Calc coord 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