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Doubles in session


Current system
18311-1730
J 1744


Nearby doubles
17' : 18318-1718
KPP4112

35' : 18317-1658
HU 243

41' : 18326-1657
ARA 283AB

43' : 18328-1656
ARA 106

45' : 18338-1710
J 2216

46' : 18342-1741
ARA 284

47' : 18280-1747
RST3182

49' : 18284-1702
ARA 282

52' : 18344-1707
J 2217

53' : 18307-1639
ARA 104

53' : 18320-1641
ARA 105

54' : 18314-1824
SEE 354AB

56' : 18275-1711
RST3181

59' : 18271-1719
HDS2609

62' : 18290-1823
ARA 485

63' : 18269-1712
BU 965

64' : 18269-1753
ARA 281

66' : 18351-1659
MCA 52

75' : 18302-1844
OCC 988

76' : 18268-1814
FEN 30

76' : 18264-1805
OCC9065

78' : 18332-1620
ARA 107

78' : 18347-1632
ARA 108

78' : 18260-1801
ARA 479

81' : 18267-1822
ARA 481

84' : 18270-1830
OCC 541



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.

18311-1730 J 1744

 
 
18h 31m 06.67s -17° 30' 25.1" P.A. 249.00 sep 2.9 mag 11.13,11.10
 
 
Coord 2000 18311-1730 Discov num J  1744 Comp Coord arcsec 2000 18 31 06.67 -17 30 25.1
Date first 1941 Date last 2000 Obs 2
Pa first 240 Pa last 248.8 P.A. Now (θ) 248.8°
Sep first 2.0 Sep last 2.92 Sep. Now (ρ) 2.92"
Mag pri 11.13 Mag sec 11.10 delta mag (ΔM) 0.03 Spectral class
Pri motion ra +005 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Gaia DR2 4096728205774413056
 
 
WDS 18311-1730 J 1744 : 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
18311-1730 J 1744 1941 1 240 2.0 11.13 11.10 183121.84-173050.7
18311-1730 J 1744 2000 2 249 2.9 11.13 11.10 183106.67-173025.1

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

 
 
WDS 18311-1730 J 1744 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18311-1730 J 1744 : MEASURES
 
 
No records found.

 
 
WDS 18311-1730 : VIRTUAL EYEPIECE
 
 

18311-1730 J 1744A mag 11.13 18311-1730 J 1744B sep 2.8 P.A. 247.90 mag 11.1 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 18311-1730 : ALADIN DSS IMAGE @ 18h 31m 06.67s -17° 30' 25.1"
 
 
 
 
WDS 18311-1730 J 1744 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18311-1730 J 1744 distance=0' 18318-1718 KPP4112 distance=17' 18317-1658 HU 243 distance=35' 18326-1657 ARA 283AB distance=41' 18326-1657 ARA 283AC distance=41' 18328-1656 ARA 106 distance=43' 18338-1710 J 2216 distance=45' 18342-1741 ARA 284 distance=46' 18280-1747 RST3182 distance=47' 18284-1702 ARA 282 distance=49' 18344-1707 J 2217 distance=52' 18307-1639 ARA 104 distance=53' 18320-1641 ARA 105 distance=53' 18314-1824 OCC 22Aa,Ab distance=54' 18314-1824 SEE 354AB distance=54' 18275-1711 RST3181 distance=56' 18271-1719 HDS2609 distance=59' 18290-1823 ARA 485 distance=62' 18269-1712 BU 965 distance=63' 18269-1753 ARA 281 distance=64' 18351-1659 MCA 52 distance=66' 18302-1844 OCC 988 distance=75' 18268-1814 FEN 30 distance=76' 18264-1805 OCC9065 distance=76' 18332-1620 ARA 107 distance=78' 18347-1632 ARA 108 distance=78' 18260-1801 ARA 479 distance=78' 18267-1822 ARA 481 distance=81' 18274-1838 LEO 17DE distance=84' 18270-1830 OCC 541 distance=84' 18264-1819 ARA 480 distance=84' 18313-1855 TNN 10AB distance=85' 18313-1855 TNN 10AC distance=85' 18313-1855 TNN 10AD distance=85' 18313-1855 TNN 10AE distance=85' 18313-1855 TNN 10AF distance=85' 18363-1649 ARA 109 distance=86' 18274-1838 LEO 17AB distance=86' 18274-1838 LEO 17AC distance=86' 18270-1835 SKF 935 distance=88' 18295-1606 TDT 909 distance=88' 18356-1833 RBR 10 distance=90' 18325-1858 ANT 10BC distance=91' 18325-1858 ARN 52AB distance=91' 18325-1858 ANT 10AC distance=91' 18307-1559 ARA 103 distance=92' 18261-1829 ARA 478 distance=93' 18290-1858 I 1368 distance=93' 18315-1904 ARA 753 distance=94' 18262-1832 CHR 236 distance=94' 18315-1905 ARA 752 distance=95' 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 18311-1730 J 1744 249 2.9
Show 18318-1718 KPP4112 250 1.5 17
Show 18317-1658 HU 243 346 1.4 35
Show 18326-1657 ARA 283 AB 34 11.9 41
Show 18326-1657 ARA 283 AC 143 13.8 41
Show 18328-1656 ARA 106 160 10.1 43
Show 18338-1710 J 2216 19 3.6 45
Show 18342-1741 ARA 284 69 5.4 46
Show 18280-1747 RST3182 4 2.7 47
Show 18284-1702 ARA 282 265 12.9 49
Show 18344-1707 J 2217 300 5.8 52
Show 18307-1639 ARA 104 205 11.1 53
Show 18320-1641 ARA 105 144 14.5 53
Show 18314-1824 OCC 22 Aa,Ab -1 0.1 54
Show 18314-1824 SEE 354 AB 182 23.2 54
Show 18275-1711 RST3181 110 1.4 56
Show 18271-1719 HDS2609 105 1.7 59
Show 18290-1823 ARA 485 185 9.8 62
Show 18269-1712 BU 965 109 1.5 63
Show 18269-1753 ARA 281 102 13.8 64
Show 18351-1659 MCA 52 145 0.2 66
Show 18302-1844 OCC 988 -1 0.1 75
Show 18268-1814 FEN 30 47 3.4 76
Show 18264-1805 OCC9065 306 0.2 76
Show 18332-1620 ARA 107 221 8.3 78
Show 18347-1632 ARA 108 17 16.2 78
Show 18260-1801 ARA 479 136 8.1 78
Show 18267-1822 ARA 481 7 11.2 81
Show 18274-1838 LEO 17 DE 295 15.9 84
Show 18270-1830 OCC 541 -1 0.4 84
Show 18264-1819 ARA 480 279 10.1 84
Show 18313-1855 TNN 10 AB 170 2.8 85
Show 18313-1855 TNN 10 AC 267 3.5 85
Show 18313-1855 TNN 10 AD 213 5.1 85
Show 18313-1855 TNN 10 AE 71 5.3 85
Show 18313-1855 TNN 10 AF 119 5.4 85
Show 18363-1649 ARA 109 32 12.6 86
Show 18274-1838 LEO 17 AB 211 4.1 86
Show 18274-1838 LEO 17 AC 276 17.9 86
Show 18270-1835 SKF 935 16 4.6 88
Show 18295-1606 TDT 909 85 1.7 88
Show 18356-1833 RBR 10 320 4.9 90
Show 18325-1858 ANT 10 BC 138 8.2 91
Show 18325-1858 ARN 52 AB 262 70.0 91
Show 18325-1858 ANT 10 AC 256 65.8 91
Show 18307-1559 ARA 103 189 13.9 92
Show 18261-1829 ARA 478 54 12.0 93
Show 18290-1858 I 1368 288 0.6 93
Show 18315-1904 ARA 753 178 5.9 94
Show 18262-1832 CHR 236 116 0.1 94
Show 18315-1905 ARA 752 284 11.2 95

 
 
WDS 18311-1730 : COMPONENTS
 
 
  A
B pa=247.9°
sep=2.80"
 
 
18311-1730 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 183106.67-173025.1 Mag 11.13 PmRA 5.00
PmDE 1.0
 
 
18311-1730 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183106.49-173026.2 Mag 11.1 Calc delta mag 0.03
Calc coord yes