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Doubles in session


Current system
18090-1825
HJ 2819
HD 165890


Nearby doubles
4' : 18089-1827
ARA 453

4' : 18093-1827
ARA 455

5' : 18094-1822
FEN 26

7' : 18086-1823
GAU9002

10' : 18090-1815
ARA 454

26' : 18082-1847
ARA 452

30' : 18087-1756
ARA 266AB

33' : 18084-1856
I 625AB

34' : 18078-1852
ARA 451

37' : 18089-1901
ARA 731

39' : 18115-1807
ARA 457

39' : 18118-1825
HJ 2820AB

45' : 18105-1745
J 2197AB

48' : 18067-1859
HJ 592

50' : 18120-1852
OCC9177

51' : 18124-1840
KPP4092

53' : 18077-1913
ARA 729

54' : 18125-1847
ARA 460

55' : 18118-1903
I 1479

56' : 18126-1804
ARA 461

57' : 18125-1852
VAT 2

57' : 18130-1819
TDT 739

61' : 18133-1817
ARA 462

62' : 18125-1901
SKF 95

62' : 18081-1925
ARA 730AB

66' : 18069-1923
A 2258



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.

18090-1825 HJ 2819 (HD 165890)

 
 
18h 09m 02.91s -18° 24' 29.4" P.A. 113.00 sep 23.3 mag 10.12,11.40 Sp B7/8Ib
 
 
Coord 2000 18090-1825 Discov num HJ 2819 Comp Coord arcsec 2000 18 09 02.91 -18 24 29.4
Date first 1830 Date last 2017 Obs 10
Pa first 115 Pa last 113 P.A. Now (θ) 113°
Sep first 15.0 Sep last 23.297 Sep. Now (ρ) 23.297"
Mag pri 10.12 Mag sec 11.40 delta mag (ΔM) 1.28 Spectral class B7/8Ib (blue-white)
Pri motion ra +001 Sec motion ra -013
Pri motion dec +005 Sec motion dec +000
Notes
rPM=1.144
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 165890 Constellation Sagittarius Tycho2 6268-01185-1 Gaia DR2 4095759707732699392
HD 165890
 
 
WDS 18090-1825 HJ 2819 (HD 165890) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma 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
18090-1825 HJ 2819 1999 6 113 23.5 10.12 11.40 B7/8Ib D 180902.91-182429.4
18090-1825 HJ 2819 2010 8 113 23.3 10.12 11.40 B7/8Ib 180902.91-182429.4
18090-1825 HJ 2819 2017 9 114 23.3 10.12 11.40 B7/8Ib 180902.91-182429.4

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

 
 
WDS 18090-1825 HJ 2819 (HD 165890) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18090-1825 HJ 2819 (HD 165890) : MEASURES
 
 
No records found.

 
 
WDS 18090-1825 (HD 165890) : VIRTUAL EYEPIECE
 
 

18090-1825 HJ 2819A mag 10.12 Sp B7/8Ib 18090-1825 HJ 2819B sep 22.3 P.A. 114.10 mag 11.4 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 18090-1825 (HD 165890) : ALADIN DSS IMAGE @ 18h 09m 02.91s -18° 24' 29.4"
 
 
 
 
WDS 18090-1825 HJ 2819 (HD 165890) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18090-1825 HJ 2819 distance=0' 18089-1827 ARA 453 distance=4' 18093-1827 ARA 455 distance=4' 18094-1822 FEN 26 distance=5' 18086-1823 GAU9002 distance=7' 18090-1815 ARA 454 distance=10' 18082-1847 ARA 452 distance=26' 18087-1756 TDT 706Aa,Ab distance=30' 18087-1756 ARA 266AB distance=30' 18084-1856 AOT 70CD distance=33' 18084-1856 I 625AB distance=33' 18084-1856 AOT 69AB,C distance=33' 18084-1856 AOT 70AB,D distance=33' 18078-1852 ARA 451 distance=34' 18089-1901 ARA 731 distance=37' 18115-1807 ARA 457 distance=39' 18118-1825 HJ 2820BC distance=39' 18118-1825 HJ 2820AB distance=39' 18118-1825 HJ 2820AC distance=39' 18072-1854 STN 41A,BC distance=40' 18072-1854 A 2259BC distance=40' 18105-1745 J 2197AB distance=45' 18105-1745 J 2197BC distance=45' 18067-1859 HJ 592 distance=48' 18120-1852 OCC9177 distance=50' 18124-1840 KPP4092 distance=51' 18077-1913 ARA 729 distance=53' 18125-1847 ARA 460 distance=54' 18118-1903 I 1479 distance=55' 18126-1804 ARA 461 distance=56' 18125-1852 VAT 2 distance=57' 18130-1819 TDT 739 distance=57' 18133-1817 ARA 462 distance=61' 18081-1925 AOT 68BC distance=62' 18125-1901 SKF 95 distance=62' 18081-1925 ARA 730AB distance=62' 18081-1925 AOT 68AC distance=62' 18069-1923 A 2258 distance=66' 18055-1906 ARA 727 distance=66' 18101-1929 SKF 934 distance=67' 18112-1723 RST3161 distance=69' 18137-1845 FEN 28 distance=69' 18048-1902 OCC 536 distance=72' 18138-1847 HJ 594AB distance=72' 18138-1847 HJ 594AC distance=72' 18095-1712 SKF 94AB distance=73' 18095-1712 SKF 94AC distance=73' 18126-1917 ARA 732 distance=73' 18047-1903 B 2852 distance=73' 18039-1832 ARA 450 distance=74' 18140-1801 TDT 754 distance=74' 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 18090-1825 HJ 2819 113 23.3
Show 18089-1827 ARA 453 57 8.8 4
Show 18093-1827 ARA 455 97 11.5 4
Show 18094-1822 FEN 26 46 5.0 5
Show 18086-1823 GAU9002 125 26.8 7
Show 18090-1815 ARA 454 349 14.6 10
Show 18082-1847 ARA 452 263 12.5 26
Show 18087-1756 TDT 706 Aa,Ab 98 0.8 30
Show 18087-1756 ARA 266 AB 125 11.9 30
Show 18084-1856 AOT 70 CD 286 35.5 33
Show 18084-1856 I 625 AB 44 1.8 33
Show 18084-1856 AOT 69 AB,C 92 16.8 33
Show 18084-1856 AOT 70 AB,D 299 19.6 33
Show 18078-1852 ARA 451 182 7.7 34
Show 18089-1901 ARA 731 224 6.3 37
Show 18115-1807 ARA 457 3 14.3 39
Show 18118-1825 HJ 2820 BC 87 18.5 39
Show 18118-1825 HJ 2820 AB 279 5.8 39
Show 18118-1825 HJ 2820 AC 82 12.9 39
Show 18072-1854 STN 41 A,BC 211 29.8 40
Show 18072-1854 A 2259 BC 202 1.3 40
Show 18105-1745 J 2197 AB 109 72.6 45
Show 18105-1745 J 2197 BC 82 6.2 45
Show 18067-1859 HJ 592 206 36.6 48
Show 18120-1852 OCC9177 -1 0.0 50
Show 18124-1840 KPP4092 335 1.6 51
Show 18077-1913 ARA 729 343 13.1 53
Show 18125-1847 ARA 460 86 13.7 54
Show 18118-1903 I 1479 237 2.0 55
Show 18126-1804 ARA 461 313 10.8 56
Show 18125-1852 VAT 2 86 7.6 57
Show 18130-1819 TDT 739 253 2.2 57
Show 18133-1817 ARA 462 343 14.8 61
Show 18081-1925 AOT 68 BC 298 11.9 62
Show 18125-1901 SKF 95 122 5.9 62
Show 18081-1925 ARA 730 AB 330 12.6 62
Show 18081-1925 AOT 68 AC 314 23.6 62
Show 18069-1923 A 2258 138 0.4 66
Show 18055-1906 ARA 727 24 9.9 66
Show 18101-1929 SKF 934 352 2.4 67
Show 18112-1723 RST3161 241 0.4 69
Show 18137-1845 FEN 28 256 3.6 69
Show 18048-1902 OCC 536 -1 0.1 72
Show 18138-1847 HJ 594 AB 121 7.6 72
Show 18138-1847 HJ 594 AC 238 13.5 72
Show 18095-1712 SKF 94 AB 243 4.6 73
Show 18095-1712 SKF 94 AC 279 6.2 73
Show 18126-1917 ARA 732 93 9.3 73
Show 18047-1903 B 2852 144 4.1 73
Show 18039-1832 ARA 450 66 8.0 74
Show 18140-1801 TDT 754 91 0.5 74

 
 
WDS 18090-1825 : COMPONENTS
 
 
  A
B pa=114.1°
sep=22.29"
 
 
18090-1825 A
 
 
Componente originario normalizzato AB Name HD 165890 Coord arcsec 2000 180902.91-182429.4 Mag 10.12
Spectral class B7/8Ib (blue-white) PmRA 1.00 PmDE 5.0 Tycho2 6268-01185-1
HD 165890
Tycho2
Tycho2 6268-01185-1 Pflag RAmdeg 272.26215567 DEmdeg -18.40819208
PmRA 3.6 PmDE 6.3 E RAmdeg 21 E DEmdeg 26
E pmRA 2.5 E pmDE 2.6 EpRAm 1990.96 EpDEm 1990.51
Num 3 Q RAmdeg 0.8 Q DEmdeg 0.6 Q pmRA 0.8
Q pmDE 0.6 BTmag 10.313 E BTmag 0.034 VTmag 10.119
E VTmag 0.040 Prox 999 TYC T HIP
CCDM RAdeg 272.26214722 DEdeg -18.40820611 EpRA 1990 1.88
EpDE 1990 1.89 E RAdeg 20.5 E DEdeg 25.7 Posflg
Corr 0.0
 
 
18090-1825 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180904.34-182438.5 Mag 11.4 PmRA -13.00
PmDE 0.0 Calc delta mag 1.28 Calc coord yes