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 |
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 |
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 |
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 |
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 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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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" |
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 | 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 | 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 |
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 |
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 | 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 |
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 | 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 |
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 | 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 |
Coord arcsec 2000 | 181229.06-152240.5 | Mag | 14.2 | Calc delta mag | 6.05 | Calc coord | yes |
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 |