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Doubles in session


Current system
18552+1817
J 2931


Nearby doubles
5' : 18556+1813
DAM 128

24' : 18551+1753
KPP 872

24' : 18545+1837
HDS2680

25' : 18558+1839
TDT1132

30' : 18538+1756
BPM 881

33' : 18573+1800
BPMA 70

35' : 18570+1752
BPM 902

46' : 18534+1851
LDS5867AB

48' : 18534+1856
TDT1114

49' : 18568+1733
BPM 901

50' : 18533+1737
BPM 878

55' : 18591+1810
HU 331

57' : 18577+1731
BPM 908

59' : 18551+1717
COU 721AB

60' : 18573+1724
BPM 904

60' : 18539+1719
LDS5868

61' : 18585+1855
TDT1156

63' : 18593+1842
COU 818AB

67' : 18509+1751
BPM 867

68' : 18564+1710
BPM 897

68' : 18589+1911
L 65

69' : 18561+1709
BPM 894

69' : 18582+1722
HO 91AB

72' : 18529+1919
J 470

76' : 18586+1916
KPP4132

80' : 18504+1739
KPP 859



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.

18552+1817 J 2931

 
 
18h 55m 17.75s +18° 16' 07.4" P.A. 143.00 sep 5.3 mag 13.20,11.80
 
 
Coord 2000 18552+1817 Discov num J  2931 Comp Coord arcsec 2000 18 55 17.75 +18 16 07.4
Date first 1944 Date last 2017 Obs 8
Pa first 105 Pa last 143 P.A. Now (θ) 143°
Sep first 3.0 Sep last 5.257 Sep. Now (ρ) 5.257"
Mag pri 13.20 Mag sec 11.80 delta mag (ΔM) 1.4 Spectral class
Pri motion ra -036 Sec motion ra +007
Pri motion dec -020 Sec motion dec -066
Notes U (Proper motion indicates non-physical)
rPM=0.949
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Tycho2 1588-00094-1 Gaia DR2 4517443647010647296
 
 
WDS 18552+1817 J 2931 : 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
18552+1817 J 2931 1944 1 285 3.0 10.00 14.00
18552+1817 J 2931 2000 2 139 5.1 10.00 14.00 185517.75+181607.4
18552+1817 J 2931 2001 4 140 5.2 10.00 14.00 D 185517.75+181607.4
18552+1817 J 2931 2010 4 140 5.4 10.00 14.00 185517.75+181607.4
18552+1817 J 2931 2017 6 143 5.3 13.20 11.80 U 185517.75+181607.4

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

 
 
WDS 18552+1817 J 2931 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18552+1817 J 2931 : MEASURES
 
 
No records found.

 
 
WDS 18552+1817 : VIRTUAL EYEPIECE
 
 

18552+1817 J 2931A mag 13.2 18552+1817 J 2931B sep 5.2 P.A. 144.40 mag 11.8 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 18552+1817 : ALADIN DSS IMAGE @ 18h 55m 17.75s +18° 16' 07.4"
 
 
 
 
WDS 18552+1817 J 2931 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18552+1817 J 2931 distance=0' 18556+1813 DAM 128 distance=5' 18551+1753 KPP 872 distance=24' 18545+1837 HDS2680 distance=24' 18558+1839 TDT1132 distance=25' 18538+1756 BPM 881 distance=30' 18573+1800 BPMA 70 distance=33' 18570+1752 BPM 902 distance=35' 18534+1851 LDS5867AB distance=46' 18534+1851 SKF 331AC distance=46' 18534+1856 TDT1114 distance=48' 18568+1733 BPM 901 distance=49' 18533+1737 BPM 878 distance=50' 18591+1810 HU 331 distance=55' 18577+1731 BPM 908 distance=57' 18551+1717 COU 721AB distance=59' 18551+1717 COU 721AC distance=59' 18573+1724 BPM 904 distance=60' 18539+1719 LDS5868 distance=60' 18585+1855 TDT1156 distance=61' 18593+1842 COU 818AB distance=63' 18509+1751 BPM 867 distance=67' 18564+1710 BPM 897 distance=68' 18589+1911 L 65 distance=68' 18561+1709 BPM 894 distance=69' 18582+1722 CHR 82Aa,Ab distance=69' 18582+1722 HO 91AB distance=69' 18582+1722 CIA 14Aa1,2 distance=69' 18582+1722 KRV 25AC distance=69' 18529+1919 J 470 distance=72' 18586+1916 KPP4132 distance=76' 18504+1739 KPP 859 distance=80' 18558+1935 KU 122 distance=80' 18567+1657 BPM 899 distance=82' 18495+1811 HDS2668 distance=83' 18583+1705 BPM 912 distance=84' 19010+1755 GWP2802 distance=85' 18520+1705 COU 720 distance=86' 18492+1813 SMA 81AB distance=87' 18492+1813 DAM 353AC distance=87' 18492+1813 DAM 353AD distance=87' 18586+1703 BPMA 73 distance=87' 18500+1733 BPM 855 distance=87' 19013+1758 BPM 926 distance=88' 18551+1644 WFC 216 distance=92' 18583+1654 BPMA 72 distance=93' 18587+1936 HU 330 distance=93' 18515+1700 BPMA 65 distance=94' 19018+1800 KPP1243 distance=94' 18487+1803 BPM 840 distance=95' 18586+1653 BPM 916 distance=96' 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 18552+1817 J 2931 143 5.3
Show 18556+1813 DAM 128 317 4.8 5
Show 18551+1753 KPP 872 36 7.3 24
Show 18545+1837 HDS2680 93 4.0 24
Show 18558+1839 TDT1132 218 1.0 25
Show 18538+1756 BPM 881 2 55.4 30
Show 18573+1800 BPMA 70 232 243.7 33
Show 18570+1752 BPM 902 118 83.4 35
Show 18534+1851 LDS5867 AB 207 210.7 46
Show 18534+1851 SKF 331 AC 239 2.6 46
Show 18534+1856 TDT1114 107 0.6 48
Show 18568+1733 BPM 901 96 73.6 49
Show 18533+1737 BPM 878 78 38.6 50
Show 18591+1810 HU 331 208 0.6 55
Show 18577+1731 BPM 908 149 76.0 57
Show 18551+1717 COU 721 AB 302 3.3 59
Show 18551+1717 COU 721 AC 149 17.5 59
Show 18573+1724 BPM 904 310 76.7 60
Show 18539+1719 LDS5868 158 10.3 60
Show 18585+1855 TDT1156 138 0.7 61
Show 18593+1842 COU 818 AB 142 3.9 63
Show 18509+1751 BPM 867 187 46.3 67
Show 18564+1710 BPM 897 82 98.9 68
Show 18589+1911 L 65 68 8.7 68
Show 18561+1709 BPM 894 18 95.9 69
Show 18582+1722 CHR 82 Aa,Ab 157 0.2 69
Show 18582+1722 HO 91 AB 146 7.0 69
Show 18582+1722 CIA 14 Aa1,2 352 0.0 69
Show 18582+1722 KRV 25 AC 79 96.0 69
Show 18529+1919 J 470 310 3.4 72
Show 18586+1916 KPP4132 105 1.8 76
Show 18504+1739 KPP 859 12 7.3 80
Show 18558+1935 KU 122 151 22.2 80
Show 18567+1657 BPM 899 142 109.6 82
Show 18495+1811 HDS2668 60 0.4 83
Show 18583+1705 BPM 912 44 94.6 84
Show 19010+1755 GWP2802 266 22.9 85
Show 18520+1705 COU 720 194 4.5 86
Show 18492+1813 SMA 81 AB 338 21.9 87
Show 18492+1813 DAM 353 AC 118 6.3 87
Show 18492+1813 DAM 353 AD 259 9.6 87
Show 18586+1703 BPMA 73 224 284.4 87
Show 18500+1733 BPM 855 290 63.8 87
Show 19013+1758 BPM 926 118 52.2 88
Show 18551+1644 WFC 216 88 12.0 92
Show 18583+1654 BPMA 72 101 258.7 93
Show 18587+1936 HU 330 33 0.7 93
Show 18515+1700 BPMA 65 297 191.5 94
Show 19018+1800 KPP1243 140 9.6 94
Show 18487+1803 BPM 840 103 103.0 95
Show 18586+1653 BPM 916 277 31.5 96

 
 
WDS 18552+1817 : COMPONENTS
 
 
  A
B pa=144.4°
sep=5.16"
 
 
18552+1817 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 185517.75+181607.4 Mag 13.2 PmRA -36.00
PmDE -20.0
 
 
18552+1817 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185517.96+181603.2 Mag 11.8 PmRA 7.00
PmDE -66.0 Tycho2 1588-00094-1 Calc delta mag 1.4 Calc coord yes
Tycho2
Tycho2 1588-00094-1 Pflag RAmdeg 283.82490737 DEmdeg 18.26764774
PmRA -4.7 PmDE -59.5 E RAmdeg 77 E DEmdeg 79
E pmRA 1.9 E pmDE 1.9 EpRAm 1966.27 EpDEm 1965.16
Num 3 Q RAmdeg 0.6 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 12.461 E BTmag 0.201 VTmag 12.047
E VTmag 0.196 Prox 927 TYC HIP
CCDM RAdeg 283.82491861 DEdeg 18.26778444 EpRA 1990 1.55
EpDE 1990 1.72 E RAdeg 89.5 E DEdeg 93.2 Posflg
Corr -0.1