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Doubles in session


Current system
18106-1645
S 700 AB
HD 166286


Nearby doubles
10' : 18112-1642
RST4000

15' : 18103-1700
ARA 268

22' : 18107-1624
FEN 27

24' : 18108-1709
HU 195AB

27' : 18099-1710
ARA 267

28' : 18093-1624
BRT 627

30' : 18102-1616
ARA 98

32' : 18095-1712
SKF 94AB

38' : 18080-1637
RST3996

40' : 18112-1723
RST3161

43' : 18128-1618
HJ 2821AB

44' : 18117-1605
J 1620AB

46' : 18079-1709
ARA 265

56' : 18143-1631
J 1648

61' : 18105-1745
J 2197AB

63' : 18124-1548
BRT 586

64' : 18066-1712
HJ 2818

67' : 18118-1541
HO 429

70' : 18154-1648
HJ 2824

74' : 18154-1622
J 1649

76' : 18157-1658
FOX 223

77' : 18087-1756
ARA 266AB

78' : 18130-1537
J 2200

81' : 18159-1706
FOX 224

82' : 18146-1742
SKF 96

82' : 18136-1536
BU 131AB



Selections
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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.

18106-1645 S 700 AB (HD 166286)

 
 
18h 10m 33.56s -16° 44' 57.4" P.A. 291.00 sep 18.8 mag 8.27,9.73 Sp B1III
 
 
Coord 2000 18106-1645 Discov num S   700 Comp AB Coord arcsec 2000 18 10 33.56 -16 44 57.4
Date first 1879 Date last 2018 Obs 21
Pa first 291 Pa last 291.2 P.A. Now (θ) 291.2°
Sep first 19.7 Sep last 18.812 Sep. Now (ρ) 18.812"
Mag pri 8.27 Mag sec 9.73 delta mag (ΔM) 1.46 Spectral class B1III (blue-white)
Pri motion ra +003 Sec motion ra +003
Pri motion dec +000 Sec motion dec +002
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.555
This double is not physical.
 
 
18106-1645 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 166286 161139 18 10 34 -16 44 57 S 700 AB 2018 21 291 18.8 8.27 9.73 1.46 <===
Show 161139 18 10 34 -16 44 57 S 700 AC 2018 27 353 28.6 8.27 8.59 0.32
Show 161139 18 10 34 -16 44 57 ABH 94 AD 2015 5 348 47.7 8.27 14.20 5.93
Show 161139 18 10 34 -16 44 57 ABH 94 AE 2015 5 65 58.0 8.27 13.48 5.21
Show 161139 18 10 34 -16 44 57 ABH 94 AF 2015 5 49 99.2 8.27 13.07 4.80
Show 161139 18 10 34 -16 44 57 S 700 AG 2015 7 297 35.6 8.27 11.30 3.03
Septuple system
7 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 166286 Constellation Sagittarius SAO 161139 Tycho2 6264-01001-1
Gaia DR2 4145581465816350464 HD 166286
 
 
WDS 18106-1645 S 700 AB (HD 166286) : NOTES
 
 
discov_num notes refcode
S 700 A 4th star "nearly south".
Primary is eclipsing binary of Algol-type, ecc, period 7.8075 d. Zas2012
 
 
REFERENCES
 
 
refcode metd author reference
Zas2012 - Zasche, P. ...................
Zas2012 private communication, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 ABH Abt, H.A.
29 S South, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18106-1645 S 700 AB 2003 16 292 18.8 8.27 9.73 B1III N D 181033.56-164457.4
18106-1645 S 700 AB 2015 18 292 18.8 8.27 9.73 B1III N 181033.56-164457.4
18106-1645 S 700 AB 2018 21 291 18.8 8.27 9.73 B1III NU 181033.56-164457.4

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

 
 
WDS 18106-1645 S 700 AB (HD 166286) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18106-1645 S 700 AB (HD 166286) : MEASURES
 
 
No records found.

 
 
WDS 18106-1645 (HD 166286) : VIRTUAL EYEPIECE
 
 

18106-1645 S 700A mag 8.27 Sp B1III 18106-1645 S 700B sep 18.1 P.A. 292.10 mag 9.73 18106-1645 S 700C sep 28.6 P.A. 353.10 mag 8.59 18106-1645 ABH 94D sep 47.6 P.A. 348.20 mag 14.2 18106-1645 ABH 94E sep 56.0 P.A. 63.90 mag 13.48 18106-1645 ABH 94F sep 96.8 P.A. 47.50 mag 13.07 18106-1645 S 700G sep 34.4 P.A. 298.00 mag 11.3 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 18106-1645 (HD 166286) : ALADIN DSS IMAGE @ 18h 10m 33.56s -16° 44' 57.4"
 
 
 
 
WDS 18106-1645 S 700 AB (HD 166286) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18106-1645 S 700AB distance=1' 18106-1645 S 700AC distance=1' 18106-1645 ABH 94AD distance=1' 18106-1645 ABH 94AE distance=1' 18106-1645 ABH 94AF distance=1' 18106-1645 S 700AG distance=1' 18112-1642 RST4000 distance=10' 18103-1700 ARA 268 distance=15' 18107-1624 FEN 27 distance=22' 18108-1709 HU 195AB distance=24' 18108-1709 HJ 593AC distance=24' 18099-1710 ARA 267 distance=27' 18093-1624 BRT 627 distance=28' 18102-1616 ARA 98 distance=30' 18095-1712 SKF 94AB distance=32' 18095-1712 SKF 94AC distance=32' 18080-1637 RST3996 distance=38' 18112-1723 RST3161 distance=40' 18128-1618 HJ 2821AB distance=43' 18128-1618 BU 1463AC distance=43' 18117-1605 J 1620BC distance=44' 18117-1605 J 1620BD distance=44' 18117-1605 J 1620AB distance=44' 18117-1605 ABH 95AE distance=44' 18117-1605 ABH 95AF distance=44' 18079-1709 ARA 265 distance=46' 18143-1631 J 1648 distance=56' 18105-1745 J 2197AB distance=61' 18105-1745 J 2197BC distance=61' 18124-1548 BRT 586 distance=63' 18066-1712 HJ 2818 distance=64' 18118-1541 HO 429 distance=67' 18154-1648 HJ 2824 distance=70' 18154-1622 J 1649 distance=74' 18157-1658 FOX 223 distance=76' 18087-1756 TDT 706Aa,Ab distance=77' 18087-1756 ARA 266AB distance=77' 18130-1537 J 2200 distance=78' 18159-1706 FOX 224 distance=81' 18146-1742 SKF 96 distance=82' 18136-1536 BU 131BC distance=82' 18136-1536 BU 131AB distance=82' 18136-1536 FOX 221AD distance=82' 18136-1536 BU 131AC distance=82' 18115-1807 ARA 457 distance=83' 18160-1713 ARA 273 distance=84' 18126-1804 ARA 461 distance=85' 18156-1602 AOT 72 distance=85' 18152-1738 ARA 270 distance=86' 18046-1702 HU 194 distance=87' 18125-1522 LV 7AB distance=88' 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 18106-1645 S 700 AB 291 18.8 1
Show 18106-1645 S 700 AC 353 28.6 1
Show 18106-1645 ABH 94 AD 348 47.7 1
Show 18106-1645 ABH 94 AE 65 58.0 1
Show 18106-1645 ABH 94 AF 49 99.2 1
Show 18106-1645 S 700 AG 297 35.6 1
Show 18112-1642 RST4000 292 0.5 10
Show 18103-1700 ARA 268 304 14.0 15
Show 18107-1624 FEN 27 21 4.6 22
Show 18108-1709 HU 195 AB 71 1.3 24
Show 18108-1709 HJ 593 AC 312 19.8 24
Show 18099-1710 ARA 267 348 14.7 27
Show 18093-1624 BRT 627 220 4.6 28
Show 18102-1616 ARA 98 76 9.0 30
Show 18095-1712 SKF 94 AB 243 4.6 32
Show 18095-1712 SKF 94 AC 279 6.2 32
Show 18080-1637 RST3996 90 0.2 38
Show 18112-1723 RST3161 241 0.4 40
Show 18128-1618 HJ 2821 AB 278 7.8 43
Show 18128-1618 BU 1463 AC 12 53.1 43
Show 18117-1605 J 1620 BC 235 7.3 44
Show 18117-1605 J 1620 BD 11 8.0 44
Show 18117-1605 J 1620 AB 272 27.8 44
Show 18117-1605 ABH 95 AE 346 46.8 44
Show 18117-1605 ABH 95 AF 300 120.2 44
Show 18079-1709 ARA 265 326 14.2 46
Show 18143-1631 J 1648 90 6.2 56
Show 18105-1745 J 2197 AB 109 72.6 61
Show 18105-1745 J 2197 BC 82 6.2 61
Show 18124-1548 BRT 586 76 5.1 63
Show 18066-1712 HJ 2818 139 17.7 64
Show 18118-1541 HO 429 30 4.3 67
Show 18154-1648 HJ 2824 74 21.9 70
Show 18154-1622 J 1649 337 3.4 74
Show 18157-1658 FOX 223 325 5.6 76
Show 18087-1756 TDT 706 Aa,Ab 98 0.8 77
Show 18087-1756 ARA 266 AB 125 11.9 77
Show 18130-1537 J 2200 222 7.7 78
Show 18159-1706 FOX 224 42 6.5 81
Show 18146-1742 SKF 96 50 3.3 82
Show 18136-1536 BU 131 BC 310 6.2 82
Show 18136-1536 BU 131 AB 277 3.2 82
Show 18136-1536 FOX 221 AD 34 40.8 82
Show 18136-1536 BU 131 AC 300 9.2 82
Show 18115-1807 ARA 457 3 14.3 83
Show 18160-1713 ARA 273 271 8.7 84
Show 18126-1804 ARA 461 313 10.8 85
Show 18156-1602 AOT 72 348 8.4 85
Show 18152-1738 ARA 270 333 15.0 86
Show 18046-1702 HU 194 297 0.4 87
Show 18125-1522 LV 7 AB 272 3.4 88

 
 
WDS 18106-1645 : COMPONENTS
 
 
  A B C D E F
B pa=292.1°
sep=18.12"
 
C pa=353.1°
sep=28.60"
pa=31.8°
sep=25.39"
 
D pa=348.2°
sep=47.65"
pa=10.0°
sep=40.46"
pa=340.9°
sep=19.31"
 
E pa=63.9°
sep=55.97"
pa=75.1°
sep=69.39"
pa=94.0°
sep=53.85"
pa=110.2°
sep=63.94"
 
F pa=47.5°
sep=96.80"
pa=56.4°
sep=105.85"
pa=63.6°
sep=83.44"
pa=76.9°
sep=83.22"
pa=27.3°
sep=45.95"
 
G pa=298.0°
sep=34.41"
pa=304.6°
sep=16.49"
pa=245.6°
sep=29.59"
pa=214.1°
sep=36.81"
pa=264.0°
sep=81.09"
pa=244.2°
sep=113.02"
 
 
18106-1645 A
 
 
Name HD 166286 Coord arcsec 2000 181033.56-164457.4 Mag 8.27 Spectral class B1III (blue-white)
PmRA 3.00 PmDE 0.0 SAO 161139 Tycho2 6264-01001-1
HD 166286 DM BD-16 4736
Tycho2
Tycho2 6264-01001-1 Pflag RAmdeg 272.63986416 DEmdeg -16.74929649
PmRA 2.3 PmDE -0.7 E RAmdeg 6 E DEmdeg 8
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.26 EpDEm 1990.76
Num 10 Q RAmdeg 1.3 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.3 BTmag 8.475 E BTmag 0.017 VTmag 8.269
E VTmag 0.014 Prox 188 TYC T HIP
CCDM RAdeg 272.63985889 DEdeg -16.74929500 EpRA 1990 1.85
EpDE 1990 1.69 E RAdeg 5.6 E DEdeg 7.9 Posflg
Corr -0.1
SAO
SAO 161139 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 0.016 Vmag 8.8 SpType B
Double code Source 21 CatNum 6568 DM BD-16 4736
DMcomp A BDsup HD 166286 M HD 1
GC RA1950rad 4.74581893 DE1950rad -0.29252054 PmRA2000 0.0014
PmDE2000 0.018
CCDM
Ccdm 18106-1645 RComp Comp A Note1
Note2 Discov num DRAs -2.36 DDEs 4.0
R dRAs 10 Year Theta Rho
Obs 4 Vmag 8.8 Sp B PmNote *
PmRA 19 PmDE 16 Dm number -16 4736 Cat1 BD
Name2 161139 Cat2 SAO HD 166286 M HD
ADS BDS B 8381 M ADS BDS N IDS IDS 18048S1647A
HIC
 
 
18106-1645 B
 
 
Coord arcsec 2000 181032.39-164450.6 Mag 9.73 PmRA 3.00 PmDE 2.0
Tycho2 6264-00806-1 Calc delta mag 1.46 Calc coord yes
Tycho2
Tycho2 6264-00806-1 Pflag RAmdeg 272.63481425 DEmdeg -16.74731911
PmRA 8.2 PmDE 9.7 E RAmdeg 19 E DEmdeg 23
E pmRA 1.9 E pmDE 2.2 EpRAm 1987.51 EpDEm 1987.83
Num 3 Q RAmdeg 0.9 Q DEmdeg 3.6 Q pmRA 0.9
Q pmDE 3.7 BTmag 10.052 E BTmag 0.035 VTmag 9.726
E VTmag 0.036 Prox 188 TYC T HIP
CCDM RAdeg 272.63479583 DEdeg -16.74733667 EpRA 1990 1.85
EpDE 1990 1.84 E RAdeg 20.5 E DEdeg 25.2 Posflg
Corr 0.0
CCDM
Ccdm 18106-1645 RComp Comp B Note1
Note2 Discov num S 700 DRAs DDEs
R dRAs Year 1879 Theta 292 Rho 18.7
Obs 4 Vmag 8.9 Sp PmNote
PmRA 35 PmDE 0 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8381 M ADS BDS N N IDS IDS 18048S1647B
HIC
 
 
18106-1645 C
 
 
Coord arcsec 2000 181033.32-164429.0 Mag 8.59 PmRA 2.00 PmDE 1.0
Tycho2 6264-00092-1 Calc delta mag 0.32 Calc coord yes
Tycho2
Tycho2 6264-00092-1 Pflag RAmdeg 272.63885042 DEmdeg -16.74142136
PmRA 1.7 PmDE 2.3 E RAmdeg 7 E DEmdeg 10
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.82 EpDEm 1989.95
Num 12 Q RAmdeg 1.4 Q DEmdeg 1.1 Q pmRA 1.5
Q pmDE 1.2 BTmag 8.751 E BTmag 0.019 VTmag 8.591
E VTmag 0.016 Prox 255 TYC T HIP
CCDM RAdeg 272.63884556 DEdeg -16.74142667 EpRA 1990 1.87
EpDE 1990 1.72 E RAdeg 6.8 E DEdeg 9.7 Posflg
Corr -0.1
CCDM
Ccdm 18106-1645 RComp Comp C Note1
Note2 Discov num S 700 DRAs -2.56 DDEs 30.8
R dRAs 10 Year 1825 Theta 353 Rho 28.7
Obs 6 Vmag 9.6 Sp PmNote *
PmRA 22 PmDE -2 Dm number Cat1
Name2 161138 Cat2 SAO HD M HD
ADS BDS B 8381 M ADS BDS N IDS IDS 18048S1647C
HIC
 
 
18106-1645 D
 
 
Coord arcsec 2000 181032.88-164410.8 Mag 14.2 Calc delta mag 5.93 Calc coord yes
 
 
18106-1645 E
 
 
Coord arcsec 2000 181037.06-164432.8 Mag 13.48 PmRA 2.00 PmDE 1.0
Calc delta mag 5.21 Calc coord yes
 
 
18106-1645 F
 
 
Coord arcsec 2000 181038.53-164352.0 Mag 13.07 PmRA -9.00 PmDE 15.0
Calc delta mag 4.8 Calc coord yes
 
 
18106-1645 G
 
 
Coord arcsec 2000 181031.45-164441.2 Mag 11.3 Calc delta mag 3.03 Calc coord yes