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Doubles in session


Current system
18321-2040
ARA 1152
HD 170789


Nearby doubles
21' : 18328-2022
KPP 416

24' : 18337-2048
ARA1154

25' : 18336-2030
DON 911

42' : 18333-2003
ARA1153

45' : 18314-2124
ARA1539

46' : 18338-2119
ARA1543

56' : 18281-2048
RSS 32

57' : 18337-2132
ARA1542

57' : 18306-2133
ARA1538

58' : 18324-2138
ARA1541

58' : 18315-2138
ARA1540

61' : 18302-2135
ARA1537

61' : 18278-2052
ARA1151

61' : 18354-2118
ARA1544

62' : 18289-2122
HU 241AB

65' : 18282-2114
HJ 2832

68' : 18296-2138
ARA1536

69' : 18367-2019
HO 567

72' : 18372-2039
DON 914

74' : 18288-2138
HU 242

75' : 18352-2140
HU 246

77' : 18340-1929
B 1887

78' : 18362-1950
ARA 756

79' : 18365-2128
ARA1547

80' : 18280-2135
HU 240

84' : 18331-1918
J 2215



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.

18321-2040 ARA 1152 (HD 170789)

 
 
18h 32m 03.26s -20° 40' 12.2" P.A. 134.00 sep 14.5 mag 10.02,12.20 Sp B9III/IV
 
 
Coord 2000 18321-2040 Discov num ARA1152 Comp Coord arcsec 2000 18 32 03.26 -20 40 12.2
Date first 1919 Date last 2015 Obs 6
Pa first 135 Pa last 134.1 P.A. Now (θ) 134.1°
Sep first 14.6 Sep last 14.539 Sep. Now (ρ) 14.539"
Mag pri 10.02 Mag sec 12.20 delta mag (ΔM) 2.18 Spectral class B9III/IV (blue-white)
Pri motion ra -004 Sec motion ra -003
Pri motion dec -009 Sec motion dec -014
Notes
rPM=0.356
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 170789 Constellation Sagittarius Tycho2 6279-00994-1 Gaia DR2 4091864687865315200
HD 170789
 
 
WDS 18321-2040 ARA 1152 (HD 170789) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ara1961 Pa - Aravamudan, S. 1961PASP...73..266A
Ara1961 PASP 73, 266, 1961
Ara1963 Pa - Aravamudan, S. .
Ara1963 Pub. Nizamiah Obs. 13, Pt.3, 1963
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18321-2040 ARA1152 1999 3 134 14.5 10.02 12.20 B9III/IV D 183203.26-204012.2
18321-2040 ARA1152 2010 5 133 14.5 10.02 12.20 B9III/IV 183203.26-204012.2
18321-2040 ARA1152 2015 6 134 14.5 10.02 12.20 B9III/IV 183203.26-204012.2

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

 
 
WDS 18321-2040 ARA 1152 (HD 170789) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18321-2040 ARA 1152 (HD 170789) : MEASURES
 
 
No records found.

 
 
WDS 18321-2040 (HD 170789) : VIRTUAL EYEPIECE
 
 

18321-2040 ARA1152A mag 10.02 Sp B9III/IV 18321-2040 ARA1152B sep 14.1 P.A. 136.00 mag 12.2 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 18321-2040 (HD 170789) : ALADIN DSS IMAGE @ 18h 32m 03.26s -20° 40' 12.2"
 
 
 
 
WDS 18321-2040 ARA 1152 (HD 170789) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18321-2040 ARA1152 distance=1' 18328-2022 KPP 416 distance=21' 18337-2048 ARA1154 distance=24' 18336-2030 DON 911 distance=25' 18333-2003 ARA1153 distance=42' 18314-2124 ARA1539 distance=45' 18338-2119 ARA1543 distance=46' 18281-2048 RSS 32 distance=56' 18337-2132 ARA1542 distance=57' 18306-2133 ARA1538 distance=57' 18324-2138 ARA1541 distance=58' 18315-2138 ARA1540 distance=58' 18302-2135 ARA1537 distance=61' 18278-2052 ARA1151 distance=61' 18354-2118 ARA1544 distance=61' 18289-2122 HU 241AB distance=62' 18289-2122 HU 241AC distance=62' 18282-2114 HJ 2832 distance=65' 18296-2138 ARA1536 distance=68' 18367-2019 HO 567 distance=69' 18372-2039 DON 914 distance=72' 18288-2138 HU 242 distance=74' 18352-2140 HU 246 distance=75' 18340-1929 B 1887 distance=77' 18362-1950 ARA 756 distance=78' 18365-2128 ARA1547 distance=79' 18280-2135 HU 240 distance=80' 18331-1918 J 2215 distance=84' 18378-2103 ARA1549 distance=84' 18349-1925 ARA 755 distance=85' 18319-1915 TDT 930 distance=85' 18317-1915 ARN 107 distance=86' 18264-2111 ARA1534 distance=86' 18360-2146 ARA1545 distance=86' 18261-2019 SKF 101 distance=87' 18259-2053 BRT1537 distance=88' 18273-2140 HU 239 distance=89' 18319-1908 BU 966CD distance=90' 18319-1908 BU 966CG distance=90' 18319-1908 BU 966CQ distance=90' 18319-1908 BU 966IC distance=91' 18319-1908 BU 966IB distance=91' 18319-1908 BU 966IQ distance=91' 18375-2130 ARA1548 distance=91' 18317-2211 ARA1890 distance=91' 18319-1908 BU 966GT distance=92' 18319-1908 BU 966Ba,Bb distance=93' 18319-1908 BU 966BC distance=93' 18319-1908 BU 966BE distance=93' 18319-1908 BU 966BH distance=93' 18319-1908 BU 966BQ distance=93' 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 18321-2040 ARA1152 134 14.5 1
Show 18328-2022 KPP 416 159 4.9 21
Show 18337-2048 ARA1154 288 7.2 24
Show 18336-2030 DON 911 348 2.1 25
Show 18333-2003 ARA1153 295 12.5 42
Show 18314-2124 ARA1539 4 5.0 45
Show 18338-2119 ARA1543 253 8.5 46
Show 18281-2048 RSS 32 223 45.7 56
Show 18337-2132 ARA1542 114 11.6 57
Show 18306-2133 ARA1538 255 9.4 57
Show 18324-2138 ARA1541 349 7.1 58
Show 18315-2138 ARA1540 10 14.8 58
Show 18302-2135 ARA1537 77 13.4 61
Show 18278-2052 ARA1151 40 16.1 61
Show 18354-2118 ARA1544 180 6.1 61
Show 18289-2122 HU 241 AB 34 4.1 62
Show 18289-2122 HU 241 AC 301 63.0 62
Show 18282-2114 HJ 2832 21 23.1 65
Show 18296-2138 ARA1536 147 15.5 68
Show 18367-2019 HO 567 165 1.3 69
Show 18372-2039 DON 914 174 0.4 72
Show 18288-2138 HU 242 279 1.2 74
Show 18352-2140 HU 246 68 2.6 75
Show 18340-1929 B 1887 283 2.2 77
Show 18362-1950 ARA 756 325 9.5 78
Show 18365-2128 ARA1547 230 11.0 79
Show 18280-2135 HU 240 35 4.7 80
Show 18331-1918 J 2215 267 6.0 84
Show 18378-2103 ARA1549 188 14.1 84
Show 18349-1925 ARA 755 77 13.1 85
Show 18319-1915 TDT 930 194 1.2 85
Show 18317-1915 ARN 107 289 21.1 86
Show 18264-2111 ARA1534 270 13.2 86
Show 18360-2146 ARA1545 203 12.9 86
Show 18261-2019 SKF 101 35 2.9 87
Show 18259-2053 BRT1537 284 3.4 88
Show 18273-2140 HU 239 185 3.1 89
Show 18319-1908 BU 966 CD 171 11.0 90
Show 18319-1908 BU 966 CG 280 284.3 90
Show 18319-1908 BU 966 CQ 36 56.5 90
Show 18319-1908 BU 966 IC 264 93.6 91
Show 18319-1908 BU 966 IB 351 141.3 91
Show 18319-1908 BU 966 IQ 301 69.5 91
Show 18375-2130 ARA1548 336 14.8 91
Show 18317-2211 ARA1890 289 11.5 91
Show 18319-1908 BU 966 GT 63 61.7 92
Show 18319-1908 BU 966 Ba,Bb 95 0.9 93
Show 18319-1908 BU 966 BC 205 164.9 93
Show 18319-1908 BU 966 BE 302 91.0 93
Show 18319-1908 BU 966 BH 358 50.8 93
Show 18319-1908 BU 966 BQ 199 109.6 93

 
 
WDS 18321-2040 : COMPONENTS
 
 
  A
B pa=136.0°
sep=14.06"
 
 
18321-2040 A
 
 
Componente originario normalizzato AB Name HD 170789 Coord arcsec 2000 183203.26-204012.2 Mag 10.02
Spectral class B9III/IV (blue-white) PmRA -4.00 PmDE -9.0 Tycho2 6279-00994-1
HD 170789
Tycho2
Tycho2 6279-00994-1 Pflag RAmdeg 278.01360432 DEmdeg -20.67006394
PmRA -1.1 PmDE -8.7 E RAmdeg 25 E DEmdeg 30
E pmRA 2.7 E pmDE 2.7 EpRAm 1990.45 EpDEm 1989.98
Num 3 Q RAmdeg 0.9 Q DEmdeg 1.5 Q pmRA 0.9
Q pmDE 1.5 BTmag 10.231 E BTmag 0.040 VTmag 10.020
E VTmag 0.049 Prox 999 TYC T HIP
CCDM RAdeg 278.01360722 DEdeg -20.67004389 EpRA 1990 1.70
EpDE 1990 1.76 E RAdeg 25.4 E DEdeg 29.8 Posflg
Corr 0.1
CCDM
Ccdm 18321-2040 RComp Comp A Note1
Note2 Discov num DRAs -2.65 DDEs -12.8
R dRAs 41 Year Theta Rho
Obs 2 Vmag 10.0 Sp B9 PmNote
PmRA PmDE Dm number -20 5168 Cat1 BD
Name2 Cat2 HD 170789 M HD
ADS BDS M ADS BDS N IDS IDS 18261S2044A
HIC
 
 
18321-2040 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183203.96-204022.3 Mag 12.2 PmRA -3.00
PmDE -14.0 Calc delta mag 2.18 Calc coord yes
CCDM
Ccdm 18321-2040 RComp Comp B Note1
Note2 Discov num ARA1152 DRAs -1.92 DDEs -23.5
R dRAs 41 Year 1921 Theta 135 Rho 14.6
Obs 2 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18261S2044B
HIC