18125-1522 LV 7 AB (HD 166716)

 
 
18h 12m 28.50s -15° 22' 23.7" P.A. 272.00 sep 3.4 mag 8.15,11.14 Sp B1/2II dist. 854.7 pc (2788.03 l.y.)
 
 
Coord 2000 18125-1522 Discov num LV    7 Comp AB Coord arcsec 2000 18 12 28.50 -15 22 23.7
Date first 1892 Date last 1999 Obs 13
Pa first 278 Pa last 272.2 P.A. Now (θ) 272.2°
Sep first 3.8 Sep last 3.39 Sep. Now (ρ) 3.39"
Mag pri 8.15 Mag sec 11.14 delta mag (ΔM) 2.99 Spectral class B1/2II (blue-white)
Pri motion ra +008 Sec motion ra -002
Pri motion dec -005 Sec motion dec -001
Notes
rPM=1.142
This double is not physical.
 
 
18125-1522 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 166716 161181 18 12 28 -15 22 24 LV 7 AB 1999 13 272 3.4 8.15 11.14 2.99 <===
Show 161181 18 12 28 -15 22 24 LV 7 AC 2017 11 240 33.7 8.15 10.81 2.66
Show 161181 18 12 28 -15 22 24 AOT 71 AB,D 2000 4 153 18.8 8.15 14.20 6.05
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 166716 Constellation Serpens SAO 161181 HIP 89223
Tycho2 6264-00483-1 Gaia DR2 4145997734070527744 HD 166716 BD BD-15 4864
Distance 854.7 Distance ly 2788.03
 
 
WDS 18125-1522 LV 7 AB (HD 166716) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
AOT Astronomical Obs. Torino (from additional DD list) ...................
Lv_1887 Ma - Leavenworth, F.P. 1887SidM....6...80L
Lv_1887 Sidereal Messenger 6, 80, 1887 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1888 Ma - Leavenworth, F.P. 1888SidM....7..172L
Lv_1888 Sidereal Messenger 7, 172, 1888 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1889a Ma - Leavenworth, F.P. .
Lv_1889a Micrometer Measurements of Double Stars and other observations made at the
Lv_1889a Haverford College Observatory, 1889 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1889b Ma - Leavenworth, F.P. 1889SidM....8...77L
Lv_1889b Sidereal Messenger 8, 77, 1889 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1891 Ma - Leavenworth, F.P. .
Lv_1891 Proc. Haverford College Observatory 1, 28, 1891
Lv_1891 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1892a Ma - Leavenworth, F.P. 1892AJ.....12...41L
Lv_1892a AJ 12, 41, 1892
Lv_1892b Ma - Leavenworth, F.P. 1892AJ.....12..105L
Lv_1892b AJ 12, 105, 1892 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1892c Ma - Leavenworth, F.P. .
Lv_1892c Proc. Haverford College Observatory 2, 11, 1892
Lv_1892c (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1896a Ma j Leavenworth, F.P. 1896AJ.....16..195L
Lv_1896a AJ 16, 195, 1896 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1896b Ma - Leavenworth, F.P. 1896AJ.....17...35L
Lv_1896b AJ 17, 35, 1896 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1897 Ma - Leavenworth, F.P. 1897AJ.....17..177L
Lv_1897 AJ 17, 177, 1897 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1906A Ma - Leavenworth, F.P. 1906MmRAS..56....1L
Lv_1906A cited by Lewis (MemRAS 56, 1, 1906)
Lv_1912 Ma - Leavenworth, F.P. 1912AJ.....27...71L
Lv_1912 AJ 27, 71, 1912 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915a Ma - Leavenworth, F.P. 1915AJ.....29...17L
Lv_1915a AJ 29, 17, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915b Ma j Leavenworth, F.P. 1915AJ.....29...41L
Lv_1915b AJ 29, 41, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915c Ma j Leavenworth, F.P. & Muller, F. 1915PMcCO...1...45L
Lv_1915c Pub. McCormick Observatory 1, 45, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1917a Ma - Leavenworth, F.P. 1917AJ.....30..107L
Lv_1917a AJ 30, 107, 1917 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1917b Ma - Leavenworth, F.P. 1917AJ.....30..115L
Lv_1917b AJ 30, 115, 1917 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919a Ma j Leavenworth, F.P. 1919AJ.....32...39L
Lv_1919a AJ 32, 39, 1919 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919b Ma - Leavenworth, F.P. 1919AJ.....32...41L
Lv_1919b AJ 32, 41, 1919 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919c Ma - Leavenworth, F.P. 1919AJ.....32..129L
Lv_1919c AJ 32, 129, 1919 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1921 Ma j Leavenworth, F.P. 1921AJ.....33..158L
Lv_1921 AJ 33, 158, 1921 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1922 Ma j Leavenworth, F.P. 1921AJ.....34..151L
Lv_1922 AJ 34, 151, 1922 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1925 Ma - Leavenworth, F.P. 1921AJ.....36..105L
Lv_1925 AJ 36, 105, 1925 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1927 Ma - Leavenworth, F.P. 1921AJ.....37..141L
Lv_1927 AJ 37, 141, 1927 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1930 Ma j Leavenworth, F.P. & Beal, W.O. 1930QB821.L4.......
Lv_1930 Meaures of Double Stars (Minneapolis, Univ. Minnesota Press), 1930
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18125-1522 LV 7 AB 1999 13 272 3.4 8.15 11.14 B1/2II D 181228.50-152223.7
18125-1522 LV 7 AB 2010 14 265 3.9 8.15 11.14 B1/2II 181228.50-152223.7

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

 
 
WDS 18125-1522 LV 7 AB (HD 166716) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18125-1522 LV 7 AB (HD 166716) : MEASURES
 
 
No records found.

 
 
WDS 18125-1522 (HD 166716) : VIRTUAL EYEPIECE
 
 

18125-1522 LV    7A mag 8.15 Sp B1/2II 18125-1522 LV    7B sep 3.3 P.A. 272.30 mag 11.14 18125-1522 LV    7C sep 32.8 P.A. 239.30 mag 10.81 18125-1522 AOT  71D sep 18.6 P.A. 154.00 mag 14.2 virtual eyepiece
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Radius:
Components only
 
 
WDS 18125-1522 (HD 166716) : ALADIN DSS IMAGE @ 18h 12m 28.50s -15° 22' 23.7"
 
 
 
 
WDS 18125-1522 LV 7 AB (HD 166716) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18125-1522  LV    7AB distance=0' 18130-1537  J  2200 distance=16' 18118-1541  HO  429 distance=21' 18136-1536  BU  131BC distance=22' 18136-1536  BU  131AB distance=22' 18136-1536  FOX 221AD distance=22' 18136-1536  BU  131AC distance=22' 18124-1548  BRT 586 distance=26' 18139-1503  RST4002 distance=29' 18142-1506  RST4004 distance=31' 18117-1605  J  1620AB distance=44' 18117-1605  ABH  95AE distance=44' 18117-1605  ABH  95AF distance=44' 18117-1605  J  1620BC distance=44' 18117-1605  J  1620BD distance=44' 18158-1527  SKF2388 distance=49' 18159-1505  J  2202 distance=53' 18128-1618  HJ 2821AB distance=56' 18128-1618  BU 1463AC distance=56' 18163-1506  J  2203AB distance=58' 18163-1506  J  2203BC distance=58' 18158-1554  RST4005 distance=59' 18156-1602  AOT  72 distance=61' 18140-1426  BRT2746 distance=61' 18102-1616  ARA  98 distance=63' 18107-1624  FEN  27 distance=67' 18166-1451  BRT 587 distance=68' 18170-1548  J  2513 distance=71' 18154-1622  J  1649 distance=74' 18143-1631  J  1648 distance=75' 18137-1410  BRT2745 distance=77' 18093-1624  BRT 627 distance=77' 18178-1537  J  2205AB distance=79' 18178-1537  J  2205AC distance=79' 18079-1434  BRT2744 distance=82' 18112-1642  RST4000 distance=82' 18122-1400  HDS2569AB distance=83' 18071-1444  BRT 585 distance=87' 18106-1645  S   700AB distance=88' 18106-1645  S   700AC distance=88' 18106-1645  ABH  94AD distance=88' 18106-1645  ABH  94AE distance=88' 18106-1645  ABH  94AF distance=88' 18106-1645  S   700AG distance=88' 18173-1425  BRT 588 distance=88' 18168-1622  J  1650 distance=90' 18177-1611  ARA 102 distance=91' 18168-1631  SNA  84AB distance=94' 18168-1631  SNA  84AC distance=94' 18168-1631  SNA  84AD distance=94' 18168-1414  J  2204BC distance=94' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18125-1522 LV 7 AB 272 3.4
Show 18125-1522 LV 7 AC 240 33.7
Show 18125-1522 AOT 71 AB,D 153 18.8
Show 18130-1537 J 2200 222 7.7 16
Show 18118-1541 HO 429 30 4.3 21
Show 18136-1536 BU 131 BC 310 6.2 22
Show 18136-1536 BU 131 AB 277 3.2 22
Show 18136-1536 FOX 221 AD 34 40.8 22
Show 18136-1536 BU 131 AC 300 9.2 22
Show 18124-1548 BRT 586 76 5.1 26
Show 18139-1503 RST4002 47 2.5 29
Show 18142-1506 RST4004 220 1.6 31
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 18117-1605 J 1620 BC 235 7.3 44
Show 18117-1605 J 1620 BD 11 8.0 44
Show 18158-1527 SKF2388 48 12.2 49
Show 18159-1505 J 2202 185 8.0 53
Show 18128-1618 HJ 2821 AB 278 7.8 56
Show 18128-1618 BU 1463 AC 12 53.1 56
Show 18163-1506 J 2203 AB 90 14.7 58
Show 18163-1506 J 2203 BC 339 5.5 58
Show 18158-1554 RST4005 313 0.4 59
Show 18156-1602 AOT 72 348 8.4 61
Show 18140-1426 BRT2746 67 4.2 61
Show 18102-1616 ARA 98 76 9.0 63
Show 18107-1624 FEN 27 21 4.6 67
Show 18166-1451 BRT 587 338 3.0 68
Show 18170-1548 J 2513 274 4.0 71
Show 18154-1622 J 1649 337 3.4 74
Show 18143-1631 J 1648 90 6.2 75
Show 18137-1410 BRT2745 319 5.2 77
Show 18093-1624 BRT 627 220 4.6 77
Show 18178-1537 J 2205 AB 100 4.6 79
Show 18178-1537 J 2205 AC 47 13.9 79
Show 18079-1434 BRT2744 273 3.5 82
Show 18112-1642 RST4000 292 0.5 82
Show 18122-1400 HDS2569 AB 151 0.2 83
Show 18071-1444 BRT 585 352 4.9 87
Show 18106-1645 S 700 AB 291 18.8 88
Show 18106-1645 S 700 AC 353 28.6 88
Show 18106-1645 ABH 94 AD 348 47.7 88
Show 18106-1645 ABH 94 AE 65 58.0 88
Show 18106-1645 ABH 94 AF 49 99.2 88
Show 18106-1645 S 700 AG 297 35.6 88
Show 18173-1425 BRT 588 117 3.9 88
Show 18168-1622 J 1650 249 4.5 90
Show 18177-1611 ARA 102 95 10.6 91
Show 18168-1631 SNA 84 AB 117 5.1 94
Show 18168-1631 SNA 84 AC 199 5.5 94

 
 
WDS 18125-1522 : COMPONENTS
 
 
  A B C
B pa=272.3°
sep=3.27"
 
C pa=239.3°
sep=32.82"
pa=235.9°
sep=30.13"
 
D pa=154.0°
sep=18.64"
pa=145.9°
sep=20.39"
pa=90.0°
sep=36.38"
 
 
18125-1522 A
 
 
Name HD 166716 Coord arcsec 2000 181228.50-152223.7 Mag 8.15 Spectral class B1/2II (blue-white)
PmRA 8.00 PmDE -5.0 SAO 161181 HIP 89223
Tycho2 6264-00483-1 HD 166716 BD BD-15 4864
Tycho2
Tycho2 6264-00483-1 Pflag RAmdeg 273.11877924 DEmdeg -15.37325299
PmRA 7.7 PmDE -4.5 E RAmdeg 6 E DEmdeg 7
E pmRA 1.9 E pmDE 1.9 EpRAm 1991.67 EpDEm 1991.60
Num 3 Q RAmdeg 1.7 Q DEmdeg 1.1 Q pmRA 1.8
Q pmDE 1.1 BTmag 8.258 E BTmag 0.017 VTmag 8.146
E VTmag 0.014 Prox 39 TYC T HIP 89223
CCDM A RAdeg 273.11876139 DEdeg -15.37324278 EpRA 1990 1.78
EpDE 1990 1.77 E RAdeg 5.7 E DEdeg 7.4 Posflg
Corr 0.0
SAO
SAO 161181 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.004 Vmag 8.7 SpType B5
Double code Source 21 CatNum 6593 DM BD-15 4864
DMcomp BDsup HD 166716 M HD 0
GC RA1950rad 4.75430199 DE1950rad -0.26854838 PmRA2000 0.0003
PmDE2000 -0.002
Hipparcos
Catalog H HIP 89223 Proxy H RAhms 18 12 28.50
DEdms -15 22 23.7 Vmag 8.05 VarFlag R Vmag G
RAdeg 273.119 DEdeg -15.3732 AstroRef A Plx 3.11
CCDM 18125-1522 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 279 Rho 3.93 HD 166716 BD BD-15 4864
CD CP Dm number -15 4864 VIred 0.15
SpType B1/B2II R SpType Coord arcsec 2000 181228.50-152223.7
Hipparcos 2
HIP 89223 Sn 15 So 3 Nc 2
RArad 4.7668215797 DErad -0.2683137063 Plx 1.17 PmRA -1.34
PmDE -0.3 E RArad 0.96 E DErad 0.54 E Plx 1.07
E pmRA 1.05 E pmDE 0.62 Hpmag 8.1112 E Hpmag 0.0017
SHp 0.01 VA 0 BV 0.135 E BV 0.015
VI 0.15
CCDM
Ccdm 18125-1522 RComp Comp A Note1
Note2 Discov num DRAs -1.49 DDEs -23.8
R dRAs 56 Year Theta Rho
Obs 4 Vmag 8.0 Sp B5 PmNote *
PmRA 1 PmDE -4 Dm number -15 4864 Cat1 BD
Name2 161181 Cat2 SAO HD 166716 M HD
ADS BDS A11146 M ADS BDS N IDS IDS 18067S1524A
HIC 89223
 
 
18125-1522 B
 
 
Coord arcsec 2000 181228.27-152223.6 Mag 11.14 PmRA -2.00 PmDE -1.0
Calc delta mag 2.99 Calc coord yes
CCDM
Ccdm 18125-1522 RComp Comp B Note1
Note2 Discov num LV 7 DRAs DDEs
R dRAs Year 1892 Theta 278 Rho 3.8
Obs 6 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11146 M ADS BDS N IDS IDS 18067S1524B
HIC 89223
 
 
18125-1522 C
 
 
Coord arcsec 2000 181226.55-152240.5 Mag 10.81 PmRA 2.00 PmDE -7.0
Calc delta mag 2.66 Calc coord yes
CCDM
Ccdm 18125-1522 RComp Comp C Note1
Note2 Discov num LV 7 DRAs DDEs
R dRAs Year 1912 Theta 240 Rho 33.6
Obs 1 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11146 M ADS BDS N IDS IDS 18067S1524C
HIC
 
 
18125-1522 D
 
 
Coord arcsec 2000 181229.06-152240.5 Mag 14.2 Calc delta mag 6.05 Calc coord yes
CCDM
Ccdm 18125-1522 RComp Comp D Note1
Note2 Discov num AOT 71 DRAs -0.90 DDEs -40.3
R dRAs 56 Year 1988 Theta 153 Rho 18.6
Obs 1 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 18067S1524D
HIC