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Doubles in session


Current system
18418-1909
J 2221 AC


Nearby doubles
19' : 18429-1917
OCC9184

20' : 18412-1928
OCC9183

36' : 18425-1943
ARA 761

38' : 18393-1859
ARA 760

43' : 18429-1829
ARA 488

46' : 18388-1928
BRT1541

46' : 18388-1853
FEN 33

50' : 18407-1957
ARA1158

55' : 18439-1954
STN 44

56' : 18441-1954
ARA1160

63' : 18374-1917
ARA 758

66' : 18371-1913
SEE 355

69' : 18406-2016
ARA1157

70' : 18436-2013
DON 920

71' : 18386-1816
ARA 486

75' : 18470-1912
HJ 2837

75' : 18465-1940
BRT1543

77' : 18365-1847
OCC 970

78' : 18369-1833
LEO 19

84' : 18386-2020
DON 917

85' : 18391-2025
ARA1155

87' : 18406-2034
OCC1080

89' : 18362-1950
ARA 756

93' : 18405-2040
OCC1079

95' : 18356-1833
RBR 10

96' : 18393-2038
ARA1156



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.

18418-1909 J 2221 AC

 
 
18h 41m 44.78s -19° 09' 14.4" P.A. 346.00 sep 17.9 mag 10.03,12.50
 
 
Coord 2000 18418-1909 Discov num J  2221 Comp AC Coord arcsec 2000 18 41 44.78 -19 09 14.4
Date first 1942 Date last 2015 Obs 6
Pa first 0 Pa last 345.8 P.A. Now (θ) 345.8°
Sep first 15.0 Sep last 17.894 Sep. Now (ρ) 17.894"
Mag pri 10.03 Mag sec 12.50 delta mag (ΔM) 2.47 Spectral class
Pri motion ra +021 Sec motion ra +000
Pri motion dec +009 Sec motion dec -001
Notes
rPM=1.018
This double is not physical.
 
 
18418-1909 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 41 45 -19 09 14 J 2221 AB 2015 6 254 7.5 10.03 11.70 1.67
Show 18 41 45 -19 09 14 J 2221 AC 2015 6 346 17.9 10.03 12.50 2.47 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6288-01767-1 Gaia DR2 4092350637622230656
 
 
WDS 18418-1909 J 2221 AC : NOTES
 
 
No records found.

 
 
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
18418-1909 J 2221 AC 1942 1 0 15.0 10.38 13.60 184144.78-190914.4
18418-1909 J 2221 AC 1999 3 346 18.2 10.03 12.50 184144.78-190914.4
18418-1909 J 2221 AC 2015 4 346 17.9 10.03 12.50 184144.78-190914.4

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

 
 
WDS 18418-1909 J 2221 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18418-1909 J 2221 AC : MEASURES
 
 
No records found.

 
 
WDS 18418-1909 : VIRTUAL EYEPIECE
 
 

18418-1909 J 2221A mag 10.03 18418-1909 J 2221B sep 7.1 P.A. 252.90 mag 11.7 18418-1909 J 2221C sep 17.8 P.A. 346.60 mag 12.5 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 18418-1909 : ALADIN DSS IMAGE @ 18h 41m 44.78s -19° 09' 14.4"
 
 
 
 
WDS 18418-1909 J 2221 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18418-1909 J 2221AC distance=0' 18429-1917 OCC9184 distance=19' 18412-1928 OCC9183 distance=20' 18425-1943 ARA 761 distance=36' 18393-1859 ARA 760 distance=38' 18429-1829 ARA 488 distance=43' 18388-1928 BRT1541 distance=46' 18388-1853 FEN 33 distance=46' 18407-1957 ARA1158 distance=50' 18439-1954 STN 44 distance=55' 18441-1954 ARA1160 distance=56' 18374-1917 ARA 758 distance=63' 18371-1913 SEE 355 distance=66' 18406-2016 ARA1157 distance=69' 18436-2013 DON 920 distance=70' 18386-1816 ARA 486 distance=71' 18470-1912 HJ 2837 distance=75' 18465-1940 BRT1543 distance=75' 18365-1847 OCC 970 distance=77' 18369-1833 LEO 19 distance=78' 18386-2020 DON 917 distance=84' 18391-2025 ARA1155 distance=85' 18406-2034 OCC1080 distance=87' 18362-1950 ARA 756 distance=89' 18405-2040 OCC1079 distance=93' 18356-1833 RBR 10 distance=95' 18393-2038 ARA1156 distance=96' 18483-1935 B 2461 distance=97' 18412-1731 FEN 34 distance=99' 18479-1936 J 1657 distance=99' 18349-1925 ARA 755 distance=99' 18367-2019 HO 567 distance=101' 18482-1820 J 1636 distance=103' 18453-2039 EVS 37AB distance=103' 18453-2039 EVS 37AC distance=103' 18453-2039 EVS 37AD distance=103' 18453-2039 EVS 37AE distance=103' 18453-2039 EVS 37AF distance=103' 18453-2039 GAA 14Aa,Ab distance=103' 18453-2039 KRV 18AG distance=103' 18453-2039 KRV 18AH distance=103' 18480-1817 WSI 36 distance=104' 18431-2051 ARA1159 distance=104' 18442-1733 HLD 146 distance=104' 18377-1742 FEN 32 distance=104' 18480-1814 RST3198 distance=105' 18488-1836 KUI 88 distance=105' 18488-1838 RSS 491 distance=106' 18398-2052 OCC1078 distance=107' 18435-1725 RST3194 distance=108' 18372-2039 DON 914 distance=111' 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 18418-1909 J 2221 AB 254 7.5
Show 18418-1909 J 2221 AC 346 17.9
Show 18429-1917 OCC9184 -1 0.1 19
Show 18412-1928 OCC9183 -1 0.2 20
Show 18425-1943 ARA 761 242 6.9 36
Show 18393-1859 ARA 760 60 5.6 38
Show 18429-1829 ARA 488 167 20.8 43
Show 18388-1928 BRT1541 34 4.2 46
Show 18388-1853 FEN 33 248 2.6 46
Show 18407-1957 ARA1158 68 6.6 50
Show 18439-1954 STN 44 316 1.6 55
Show 18441-1954 ARA1160 184 8.4 56
Show 18374-1917 ARA 758 270 9.1 63
Show 18371-1913 SEE 355 241 11.1 66
Show 18406-2016 ARA1157 356 9.5 69
Show 18436-2013 DON 920 336 1.4 70
Show 18386-1816 ARA 486 20 14.6 71
Show 18470-1912 HJ 2837 89 11.2 75
Show 18465-1940 BRT1543 258 3.3 75
Show 18365-1847 OCC 970 -1 0.1 77
Show 18369-1833 LEO 19 251 3.2 78
Show 18386-2020 DON 917 51 1.1 84
Show 18391-2025 ARA1155 238 11.6 85
Show 18406-2034 OCC1080 -1 0.0 87
Show 18362-1950 ARA 756 325 9.5 89
Show 18405-2040 OCC1079 -1 0.0 93
Show 18356-1833 RBR 10 320 4.9 95
Show 18393-2038 ARA1156 16 15.8 96
Show 18483-1935 B 2461 197 6.7 97
Show 18412-1731 FEN 34 325 3.8 99
Show 18479-1936 J 1657 28 3.6 99
Show 18349-1925 ARA 755 77 13.1 99
Show 18367-2019 HO 567 165 1.3 101
Show 18482-1820 J 1636 78 7.1 103
Show 18453-2039 EVS 37 AB 128 3.1 103
Show 18453-2039 EVS 37 AC 67 10.8 103
Show 18453-2039 EVS 37 AD 156 10.6 103
Show 18453-2039 EVS 37 AE 271 11.5 103
Show 18453-2039 EVS 37 AF 330 18.2 103
Show 18453-2039 GAA 14 Aa,Ab 349 0.0 103
Show 18453-2039 KRV 18 AG 250 29.9 103
Show 18453-2039 KRV 18 AH 304 34.9 103
Show 18480-1817 WSI 36 262 15.8 104
Show 18431-2051 ARA1159 84 11.7 104
Show 18442-1733 HLD 146 194 2.2 104
Show 18377-1742 FEN 32 119 4.2 104
Show 18480-1814 RST3198 154 0.4 105
Show 18488-1836 KUI 88 153 0.5 105
Show 18488-1838 RSS 491 334 10.8 106
Show 18398-2052 OCC1078 -1 0.7 107
Show 18435-1725 RST3194 87 4.0 108

 
 
WDS 18418-1909 : COMPONENTS
 
 
  A B
B pa=252.9°
sep=7.12"
 
C pa=346.6°
sep=17.84"
pa=7.8°
sep=19.62"
 
 
18418-1909 A
 
 
Coord arcsec 2000 184144.78-190914.4 Mag 10.03 PmRA 21.00 PmDE 9.0
Tycho2 6288-01767-1
Tycho2
Tycho2 6288-01767-1 Pflag RAmdeg 280.43660963 DEmdeg -19.15400963
PmRA 3.8 PmDE 0.1 E RAmdeg 50 E DEmdeg 63
E pmRA 2.5 E pmDE 2.7 EpRAm 1985.89 EpDEm 1983.22
Num 4 Q RAmdeg 1.0 Q DEmdeg 0.6 Q pmRA 1.0
Q pmDE 0.6 BTmag 12.145 E BTmag 0.218 VTmag 10.383
E VTmag 0.065 Prox 999 TYC T HIP
CCDM RAdeg 280.43660028 DEdeg -19.15401000 EpRA 1990 1.71
EpDE 1990 1.71 E RAdeg 52.3 E DEdeg 66.7 Posflg
Corr 0.2
 
 
18418-1909 B
 
 
Coord arcsec 2000 184144.30-190916.5 Mag 11.7 PmRA -28.00 PmDE -12.0
Calc delta mag 1.67 Calc coord yes
 
 
18418-1909 C
 
 
Coord arcsec 2000 184144.49-190857.1 Mag 12.5 PmRA 0.00 PmDE -1.0
Calc delta mag 2.47 Calc coord yes