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Doubles in session


Current system
18231-1701
HU 237
HD 168971


Nearby doubles
21' : 18236-1720
KPP2762

26' : 18229-1726
J 2209

26' : 18228-1727
J 2210

27' : 18247-1648
KRV 49

28' : 18234-1635
WRH 11

33' : 18210-1714
J 1627

37' : 18241-1734
J 2127

38' : 18205-1706
TDT 806

40' : 18241-1735
J 2128

40' : 18227-1740
ARA 279

41' : 18210-1633
BRT 630

43' : 18202-1707
TDT 803

45' : 18254-1631
HU 64AB

46' : 18218-1619
CHR 69

47' : 18199-1704
SMY9003

47' : 18213-1622
FGS 31

49' : 18197-1655
TOB 285

50' : 18204-1630
TOB 287

53' : 18201-1631
TDT 802

54' : 18195-1647
TOB 284AB

56' : 18269-1712
BU 965

57' : 18197-1730
TDT 796

60' : 18271-1719
HDS2609

64' : 18275-1711
RST3181

64' : 18190-1724
TVB 301

66' : 18212-1800
DON 894



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.

18231-1701 HU 237 (HD 168971)

 
 
18h 23m 07.35s -17° 01' 02.7" P.A. 28.00 sep 0.5 mag 9.46,9.86 Sp A0III/IV
 
 
Coord 2000 18231-1701 Discov num HU  237 Comp Coord arcsec 2000 18 23 07.35 -17 01 02.7
Date first 1900 Date last 1991 Obs 7
Pa first 24 Pa last 28.3 P.A. Now (θ) 28.3°
Sep first 0.4 Sep last 0.51 Sep. Now (ρ) 0.51"
Mag pri 9.46 Mag sec 9.86 delta mag (ΔM) 0.4 Spectral class A0III/IV (white)
Pri motion ra +001 Sec motion ra +001
Pri motion dec -001 Sec motion dec -001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 168971 Constellation Sagittarius SAO 161410 Tycho2 6269-01299-1
Gaia DR2 4096957964942936704 HD 168971 ADS 11295
 
 
WDS 18231-1701 HU 237 (HD 168971) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
Hu_1897 Ma - Hussey, W.J. 1897AJ.....17...97H
Hu_1897 AJ 17, 97, 1897
Hu_1898 Ma j Hussey, W.J. 1898AJ.....18..145H
Hu_1898 AJ 18, 145, 1898
Hu_1899 Ma j Hussey, W.J. 1899AN....150..175H
Hu_1899 AN 150, 175, 1899
Hu_1900a Ma - Hussey, W.J. 1900AJ.....20..192H
Hu_1900a AJ 20, 192, 1900
Hu_1900b Ma - Hussey, W.J. 1900AJ.....21...35H
Hu_1900b AJ 21, 35, 1900
Hu_1900c Ma j Hussey, W.J. 1900AN....152..329H
Hu_1900c AN 152, 329, #3645, 1900
Hu_1901a Ma j Hussey, W.J. 1901PLicO...5.....H
Hu_1901a +orb Pub. Lick Obs. 5, 1901
Hu_1901b Ma j Hussey, W.J. 1901LicOB...1...82H
Hu_1901b Lick Obs. Bull. 1, 82, 1901
Hu_1902a Ma j Hussey, W.J. 1902LicOB...1..161H
Hu_1902a Lick Obs. Bull. 1, 161, 1902
Hu_1902b Ma j Hussey, W.J. 1902LicOB...2....1H
Hu_1902b Lick Obs. Bull. 2, 1, 1902
Hu_1903a Ma j Hussey, W.J. 1903LicOB...2...73H
Hu_1903a Lick Obs. Bull. 2, 73, 1903
Hu_1903b Ma j Hussey, W.J. 1903LicOB...2..115H
Hu_1903b Lick Obs. Bull. 2, 115, 1903
Hu_1904a Ma j Hussey, W.J. 1904LicOB...2..180H
Hu_1904a Lick Obs. Bull. 2, 180, 1904
Hu_1904b Ma - Hussey, W.J. 1904LicOB...3...53H
Hu_1904b Lick Obs. Bull. 3, 53, 1904
Hu_1905a Ma - Hussey, W.J. 1905LicOB...3...95H
Hu_1905a Lick Obs. Bull. 3, 95, 1905
Hu_1905b Ma - Hussey, W.J. 1905LicOB...3..116H
Hu_1905b Lick Obs. Bull. 3, 116, 1905
Hu_1905c Ma - Hussey, W.J. 1905LicOB...3..151H
Hu_1905c Lick Obs. Bull. 3, 151, 1905
Hu_1906A Ma - Hussey, W.J. 1906MmRAS..56....1L
Hu_1906A cited by Lewis (MemRAS 56, 1, 1906)
Hu_1906B Ma - Hussey, W.J. 1906QB821.B972.....
Hu_1906B cited in BDS (Burnham Double Star Cat.), 1906
Hu_1907 Ma - Hussey, W.J. 1907LicOB...4..124H
Hu_1907 Lick Obs. Bull. 4, 124, 1907
Hu_1910 Ma - Hussey, W.J. 1910AJ.....21..105H
Hu_1910 AJ 21, 105, 1910
Hu_1911 Ma - Hussey, W.J. 1911LicOB...6..182H
Hu_1911 Lick Obs. Bull. 6, 182, 1911
Hu_1912a Ma - Hussey, W.J. 1915POMic...1..147H
Hu_1912a Pub. Univ. Michigan Obs. 1, 147, 1912
Hu_1912b Ma - Hussey, W.J. 1915POMic...1..160H
Hu_1912b Pub. Univ. Michigan Obs. 1, 160, 1912
Hu_1912c Ma - Hussey, W.J. 1915POMic...1..167H
Hu_1912c Pub. Univ. Michigan Obs. 1, 167, 1912
Hu_1927A Ma - Hussey, W.J. 1927sdsc.book......
Hu_1927A cited in SDS (Southern Double Star Cat.), 1927
Hu_1932A Ma - Hussey, W.J. 1932QB821.A43......
Hu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Hu_9999 Ma - Hussey, W.J. ...................
Hu_9999 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
18231-1701 HU 237 1991 7 28 0.5 9.46 9.86 A0III/IV 182307.35-170102.7

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

 
 
WDS 18231-1701 HU 237 (HD 168971) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18231-1701 HU 237 (HD 168971) : MEASURES
 
 
No records found.

 
 
WDS 18231-1701 (HD 168971) : VIRTUAL EYEPIECE
 
 

18231-1701 HU 237A mag 9.46 Sp A0III/IV 18231-1701 HU 237B sep 0.5 P.A. 27.20 mag 9.86 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18231-1701 (HD 168971) : ALADIN DSS IMAGE @ 18h 23m 07.35s -17° 01' 02.7"
 
 
 
 
WDS 18231-1701 HU 237 (HD 168971) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18231-1701 HU 237 distance=0' 18236-1720 KPP2762 distance=21' 18229-1726 J 2209 distance=26' 18228-1727 J 2210 distance=26' 18247-1648 KRV 49 distance=27' 18234-1635 WRH 11 distance=28' 18210-1714 J 1627 distance=33' 18241-1734 J 2127 distance=37' 18205-1706 TDT 806 distance=38' 18241-1735 J 2128 distance=40' 18227-1740 ARA 279 distance=40' 18210-1633 BRT 630 distance=41' 18202-1707 TDT 803 distance=43' 18254-1631 HU 64AB distance=45' 18254-1631 HU 64AC distance=45' 18254-1631 HU 64AD distance=45' 18218-1619 CHR 69 distance=46' 18199-1704 SMY9003 distance=47' 18213-1622 FGS 31 distance=47' 18197-1655 TOB 285 distance=49' 18204-1630 TOB 287 distance=50' 18201-1631 TDT 802 distance=53' 18195-1647 TOB 284AB distance=54' 18195-1647 TOB 284AC distance=54' 18269-1712 BU 965 distance=56' 18197-1730 TDT 796 distance=57' 18271-1719 HDS2609 distance=60' 18275-1711 RST3181 distance=64' 18190-1724 TVB 301 distance=64' 18212-1800 DON 894 distance=66' 18194-1618 BRT 628 distance=70' 18210-1805 DON 893 distance=71' 18187-1631 TOB 281 distance=71' 18266-1612 J 461 distance=71' 18196-1630 WRH 10AB distance=73' 18196-1630 WRH 10AC distance=73' 18229-1818 J 1629 distance=74' 18195-1754 ARA 277 distance=74' 18260-1801 ARA 479 distance=74' 18269-1753 ARA 281 distance=75' 18284-1702 ARA 282 distance=76' 18183-1733 J 2206 distance=78' 18206-1811 SKF 100 distance=79' 18192-1757 ARA 276 distance=79' 18177-1652 BU 463 distance=79' 18196-1600 DAM 106 distance=79' 18264-1805 OCC9065 distance=80' 18196-1601 OL 13 distance=82' 18232-1823 TOB 288 distance=82' 18175-1638 HJ 2829AB distance=84' 18175-1638 HJ 2829AC distance=84' 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 18231-1701 HU 237 28 0.5
Show 18236-1720 KPP2762 239 3.2 21
Show 18229-1726 J 2209 342 7.4 26
Show 18228-1727 J 2210 286 8.0 26
Show 18247-1648 KRV 49 331 7.9 27
Show 18234-1635 WRH 11 92 2.5 28
Show 18210-1714 J 1627 239 4.9 33
Show 18241-1734 J 2127 48 5.0 37
Show 18205-1706 TDT 806 101 0.5 38
Show 18241-1735 J 2128 35 3.4 40
Show 18227-1740 ARA 279 339 10.9 40
Show 18210-1633 BRT 630 354 5.5 41
Show 18202-1707 TDT 803 195 0.7 43
Show 18254-1631 HU 64 AB 12 3.7 45
Show 18254-1631 HU 64 AC 18 15.6 45
Show 18254-1631 HU 64 AD 349 24.7 45
Show 18218-1619 CHR 69 209 0.1 46
Show 18199-1704 SMY9003 134 24.8 47
Show 18213-1622 FGS 31 202 1.1 47
Show 18197-1655 TOB 285 194 19.4 49
Show 18204-1630 TOB 287 196 14.5 50
Show 18201-1631 TDT 802 349 1.8 53
Show 18195-1647 TOB 284 AB 178 13.3 54
Show 18195-1647 TOB 284 AC 63 20.0 54
Show 18269-1712 BU 965 109 1.5 56
Show 18197-1730 TDT 796 93 0.4 57
Show 18271-1719 HDS2609 105 1.7 60
Show 18275-1711 RST3181 110 1.4 64
Show 18190-1724 TVB 301 184 7.2 64
Show 18212-1800 DON 894 342 1.2 66
Show 18194-1618 BRT 628 319 4.4 70
Show 18210-1805 DON 893 220 2.8 71
Show 18187-1631 TOB 281 80 21.3 71
Show 18266-1612 J 461 350 2.8 71
Show 18196-1630 WRH 10 AB 296 6.1 73
Show 18196-1630 WRH 10 AC 153 37.5 73
Show 18229-1818 J 1629 82 8.6 74
Show 18195-1754 ARA 277 117 15.1 74
Show 18260-1801 ARA 479 136 8.1 74
Show 18269-1753 ARA 281 102 13.8 75
Show 18284-1702 ARA 282 265 12.9 76
Show 18183-1733 J 2206 83 2.3 78
Show 18206-1811 SKF 100 140 3.8 79
Show 18192-1757 ARA 276 40 12.6 79
Show 18177-1652 BU 463 103 2.0 79
Show 18196-1600 DAM 106 340 5.8 79
Show 18264-1805 OCC9065 306 0.2 80
Show 18196-1601 OL 13 176 4.6 82
Show 18232-1823 TOB 288 184 12.6 82
Show 18175-1638 HJ 2829 AB 320 5.0 84
Show 18175-1638 HJ 2829 AC 167 6.3 84

 
 
WDS 18231-1701 : COMPONENTS
 
 
  A
B pa=27.2°
sep=0.51"
 
 
18231-1701 A
 
 
Componente originario normalizzato AB Name HD 168971 Coord arcsec 2000 182307.35-170102.7 Mag 9.46
Spectral class A0III/IV (white) PmRA 1.00 PmDE -1.0 SAO 161410
Tycho2 6269-01299-1 HD 168971 ADS 11295 DM BD-17 5172
Tycho2
Tycho2 6269-01299-1 Pflag RAmdeg 275.78065887 DEmdeg -17.01737628
PmRA 1.1 PmDE -0.8 E RAmdeg 10 E DEmdeg 12
E pmRA 1.3 E pmDE 1.3 EpRAm 1989.63 EpDEm 1988.43
Num 9 Q RAmdeg 1.4 Q DEmdeg 1.2 Q pmRA 1.3
Q pmDE 1.2 BTmag 9.244 E BTmag 0.022 VTmag 9.004
E VTmag 0.020 Prox 999 TYC T HIP
CCDM RAdeg 275.78065583 DEdeg -17.01737583 EpRA 1990 1.73
EpDE 1990 1.60 E RAdeg 10.7 E DEdeg 12.5 Posflg P
Corr -0.2
SAO
SAO 161410 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.013 Vmag 9 SpType A0
Double code Source 21 CatNum 6723 DM BD-17 5172
DMcomp BDsup HD 168971 M HD 0
GC RA1950rad 4.80061398 DE1950rad -0.29747012 PmRA2000 -0.0004
PmDE2000 -0.012
CCDM
Ccdm 18231-1701 RComp Comp A Note1
Note2 Discov num DRAs 1.26 DDEs -3.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp A0 PmNote *
PmRA -9 PmDE -13 Dm number -17 5172 Cat1 BD
Name2 161410 Cat2 SAO HD 168971 M HD
ADS BDS A11295 M ADS BDS N IDS IDS 18173S1704A
HIC
 
 
18231-1701 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182307.37-170102.3 Mag 9.86 PmRA 1.00
PmDE -1.0 Calc delta mag 0.4 Calc coord yes
CCDM
Ccdm 18231-1701 RComp Comp B Note1
Note2 Discov num HU 237 DRAs DDEs
R dRAs Year 1900 Theta 022 Rho 0.4
Obs 5 Vmag 10.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11295 M ADS BDS N IDS IDS 18173S1704B
HIC