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Current system
18046-1936
HJ 2817
HD 312571


Nearby doubles
24' : 18063-1941
J 1619

26' : 18033-1919
BRT1512

26' : 18039-1913
B 2431

30' : 18063-1955
OCC9174

33' : 18055-1906
ARA 727

34' : 18047-1903
B 2852

35' : 18048-1902
OCC 536

35' : 18069-1923
A 2258

37' : 18025-1916
BHA 22

41' : 18036-1859
TSN 185

42' : 18062-2012
J 1618

45' : 18070-2005
ARA1134

48' : 18067-1859
HJ 592

48' : 18023-1903
ARA 722

49' : 18077-1913
ARA 729

50' : 18012-1942
B 2849

51' : 18081-1925
ARA 730AB

54' : 18011-1952
A 2387AB

55' : 18068-2021
DON 882

55' : 18011-1958
I 620

62' : 18004-1923
OCC 526

63' : 18078-1852
ARA 451

66' : 18039-1832
ARA 450

67' : 18009-1858
HJ 2815

67' : 18084-1856
I 625AB

70' : 18089-1901
ARA 731



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.

18046-1936 HJ 2817 (HD 312571)

 
 
18h 04m 39.59s -19° 36' 23.0" P.A. 275.00 sep 13.4 mag 9.92,11.03 Sp G5
 
 
Coord 2000 18046-1936 Discov num HJ 2817 Comp Coord arcsec 2000 18 04 39.59 -19 36 23.0
Date first 1830 Date last 2017 Obs 13
Pa first 276 Pa last 275 P.A. Now (θ) 275°
Sep first 7.0 Sep last 13.422 Sep. Now (ρ) 13.422"
Mag pri 9.92 Mag sec 11.03 delta mag (ΔM) 1.11 Spectral class G5 (yellow)
Pri motion ra -002 Sec motion ra -001
Pri motion dec -003 Sec motion dec -002
Notes
rPM=0.392
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 312571 Constellation Sagittarius Tycho2 6259-01049-1 Gaia DR2 4095218606266768896
HD 312571
 
 
WDS 18046-1936 HJ 2817 (HD 312571) : 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
18046-1936 HJ 2817 1999 9 275 13.4 9.92 11.03 D 180439.59-193623.0
18046-1936 HJ 2817 2010 11 270 13.4 9.92 11.03 G5 180439.59-193623.0
18046-1936 HJ 2817 2017 11 276 13.4 9.92 11.03 G5 180439.59-193623.0

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

 
 
WDS 18046-1936 HJ 2817 (HD 312571) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18046-1936 HJ 2817 (HD 312571) : MEASURES
 
 
No records found.

 
 
WDS 18046-1936 (HD 312571) : VIRTUAL EYEPIECE
 
 

18046-1936 HJ 2817A mag 9.92 Sp G5 18046-1936 HJ 2817B sep 12.7 P.A. 275.30 mag 11.03 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 18046-1936 (HD 312571) : ALADIN DSS IMAGE @ 18h 04m 39.59s -19° 36' 23.0"
 
 
 
 
WDS 18046-1936 HJ 2817 (HD 312571) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18046-1936 HJ 2817 distance=0' 18063-1941 J 1619 distance=24' 18033-1919 BRT1512 distance=26' 18039-1913 B 2431 distance=26' 18039-1913 OCC 537Aa,Ab distance=26' 18063-1955 OCC9174 distance=30' 18055-1906 ARA 727 distance=33' 18047-1903 B 2852 distance=34' 18048-1902 OCC 536 distance=35' 18069-1923 A 2258 distance=35' 18025-1916 BHA 22 distance=37' 18036-1859 TSN 185 distance=41' 18062-2012 J 1618 distance=42' 18070-2005 ARA1134 distance=45' 18067-1859 HJ 592 distance=48' 18023-1903 ARA 722 distance=48' 18077-1913 ARA 729 distance=49' 18012-1942 B 2849 distance=50' 18081-1925 AOT 68BC distance=51' 18081-1925 ARA 730AB distance=51' 18081-1925 AOT 68AC distance=51' 18011-1952 A 2387AB distance=54' 18011-1952 I 9027AC distance=54' 18068-2021 DON 882 distance=55' 18011-1958 I 620 distance=55' 18072-1854 A 2259BC distance=56' 18072-1854 STN 41A,BC distance=56' 18004-1923 OCC 526 distance=62' 18078-1852 ARA 451 distance=63' 18039-1832 ARA 450 distance=66' 18009-1858 HJ 2815 distance=67' 18084-1856 I 625AB distance=67' 18084-1856 AOT 69AB,C distance=67' 18084-1856 AOT 70AB,D distance=67' 18084-1856 AOT 70CD distance=67' 18089-1901 ARA 731 distance=70' 18082-1847 ARA 452 distance=71' 18101-1929 SKF 934 distance=77' 18097-2007 BRT1514 distance=78' 17599-2023 TDT 619 distance=82' 18061-2057 ARA1133 distance=84' 18000-2027 DON 876 distance=84' 18011-2048 HLD 140 distance=88' 18089-1827 ARA 453 distance=92' 18086-1823 GAU9002 distance=93' 18055-2109 RST5100 distance=93' 17582-1916 CHR 66 distance=94' 18112-1951 BU 132AB distance=95' 18112-1951 TOK 57Aa,Ab distance=95' 18112-1951 OCC9175Ba,Bb distance=95' 18090-1825 HJ 2819 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 18046-1936 HJ 2817 275 13.4
Show 18063-1941 J 1619 188 6.8 24
Show 18033-1919 BRT1512 34 3.8 26
Show 18039-1913 B 2431 285 9.7 26
Show 18039-1913 OCC 537 Aa,Ab 104 0.9 26
Show 18063-1955 OCC9174 -1 0.0 30
Show 18055-1906 ARA 727 24 9.9 33
Show 18047-1903 B 2852 144 4.1 34
Show 18048-1902 OCC 536 -1 0.1 35
Show 18069-1923 A 2258 138 0.4 35
Show 18025-1916 BHA 22 63 3.8 37
Show 18036-1859 TSN 185 325 0.2 41
Show 18062-2012 J 1618 359 8.9 42
Show 18070-2005 ARA1134 280 11.7 45
Show 18067-1859 HJ 592 206 36.6 48
Show 18023-1903 ARA 722 269 7.2 48
Show 18077-1913 ARA 729 343 13.1 49
Show 18012-1942 B 2849 351 12.5 50
Show 18081-1925 AOT 68 BC 298 11.9 51
Show 18081-1925 ARA 730 AB 330 12.6 51
Show 18081-1925 AOT 68 AC 314 23.6 51
Show 18011-1952 A 2387 AB 44 1.0 54
Show 18011-1952 I 9027 AC 301 33.3 54
Show 18068-2021 DON 882 119 1.8 55
Show 18011-1958 I 620 64 19.4 55
Show 18072-1854 A 2259 BC 202 1.3 56
Show 18072-1854 STN 41 A,BC 211 29.8 56
Show 18004-1923 OCC 526 -1 0.4 62
Show 18078-1852 ARA 451 182 7.7 63
Show 18039-1832 ARA 450 66 8.0 66
Show 18009-1858 HJ 2815 104 14.4 67
Show 18084-1856 I 625 AB 44 1.8 67
Show 18084-1856 AOT 69 AB,C 92 16.8 67
Show 18084-1856 AOT 70 AB,D 299 19.6 67
Show 18084-1856 AOT 70 CD 286 35.5 67
Show 18089-1901 ARA 731 224 6.3 70
Show 18082-1847 ARA 452 263 12.5 71
Show 18101-1929 SKF 934 352 2.4 77
Show 18097-2007 BRT1514 22 4.6 78
Show 17599-2023 TDT 619 198 1.5 82
Show 18061-2057 ARA1133 325 15.2 84
Show 18000-2027 DON 876 15 1.2 84
Show 18011-2048 HLD 140 265 2.3 88
Show 18089-1827 ARA 453 57 8.8 92
Show 18086-1823 GAU9002 125 26.8 93
Show 18055-2109 RST5100 283 0.7 93
Show 17582-1916 CHR 66 111 0.4 94
Show 18112-1951 BU 132 AB 187 1.4 95
Show 18112-1951 TOK 57 Aa,Ab 16 0.0 95
Show 18112-1951 OCC9175 Ba,Bb -1 0.0 95
Show 18090-1825 HJ 2819 113 23.3 96

 
 
WDS 18046-1936 : COMPONENTS
 
 
  A
B pa=275.3°
sep=12.65"
 
 
18046-1936 A
 
 
Componente originario normalizzato AB Name HD 312572 Coord arcsec 2000 180439.59-193623.0 Mag 9.92
Spectral class G5 (yellow) PmRA -2.00 PmDE -3.0 Tycho2 6259-01049-1
HD 312572
Tycho2
Tycho2 6259-01049-1 Pflag RAmdeg 271.16494581 DEmdeg -19.60639499
PmRA -1.1 PmDE -3.8 E RAmdeg 21 E DEmdeg 26
E pmRA 1.8 E pmDE 2.0 EpRAm 1986.18 EpDEm 1983.39
Num 4 Q RAmdeg 0.5 Q DEmdeg 0.5 Q pmRA 0.5
Q pmDE 0.5 BTmag 11.257 E BTmag 0.070 VTmag 9.917
E VTmag 0.034 Prox 135 TYC T HIP
CCDM RAdeg 271.16494944 DEdeg -19.60638500 EpRA 1990 1.85
EpDE 1990 1.80 E RAdeg 24.4 E DEdeg 32.3 Posflg
Corr -0.2
 
 
18046-1936 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180438.70-193621.8 Mag 11.03 PmRA -1.00
PmDE -2.0 Tycho2 6259-01189-1 HD 312571 Calc delta mag 1.11
Calc coord yes
Tycho2
Tycho2 6259-01189-1 Pflag RAmdeg 271.16099189 DEmdeg -19.60606199
PmRA -1.4 PmDE -2.9 E RAmdeg 42 E DEmdeg 53
E pmRA 2.8 E pmDE 2.9 EpRAm 1988.54 EpDEm 1987.00
Num 3 Q RAmdeg 0.5 Q DEmdeg 1.1 Q pmRA 0.5
Q pmDE 1.1 BTmag 11.288 E BTmag 0.072 VTmag 11.034
E VTmag 0.086 Prox 135 TYC T HIP
CCDM RAdeg 271.16099556 DEdeg -19.60605556 EpRA 1990 1.81
EpDE 1990 1.81 E RAdeg 42.5 E DEdeg 54.5 Posflg
Corr -0.1