Coord 2000 | 14514+1906 | Discov num | STF1888 | Comp | AB | Coord arcsec 2000 | 14 51 23.38 +19 06 01.7 | ||||
Date first | 1780 | Date last | 2021 | Obs | 1468 | ||||||
Pa first | 24 | Pa last | 296 | P.A. Now (θ) | 292.9° | ||||||
Sep first | 3.4 | Sep last | 5.01 | Sep. Now (ρ) | 5.085" | ||||||
Mag pri | 4.76 | Mag sec | 6.95 | delta mag (ΔM) | 2.19 | Spectral class | G8V+K5V (yellow/yellow-orange) | ||||
Pri motion ra | +153 | Sec motion ra | +090 | ||||||||
Pri motion dec | -072 | Sec motion dec | -147 | ||||||||
Notes | N O (See Notes, Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Xi Boo | 101250 | 14 51 23 +19 06 02 | STF 1888 AB | 2021 | 1468 | 296 | 5.0 | 4.76 | 6.95 | 2.19 | Y | <=== |
Show | 101250 | 14 51 23 +19 06 02 | STF 1888 AC | 2015 | 25 | 340 | 71.3 | 4.76 | 13.83 | 9.07 | |||
Show | 101250 | 14 51 23 +19 06 02 | STF 1888 AD | 2015 | 24 | 286 | 160.8 | 4.76 | 11.73 | 6.97 | |||
Show | 101250 | 14 51 23 +19 06 02 | ARN 11 AE | 2015 | 14 | 98 | 271.5 | 4.76 | 8.65 | 3.89 | |||
Show | 101250 | 14 51 23 +19 06 02 | ARN 12 AF | 2020 | 14 | 39 | 335.4 | 4.76 | 9.20 | 4.44 | |||
Show | 14 51 23 +19 06 07 | STF 1888 BC | 2016 | 9 | 343 | 67.0 | 6.95 | 13.83 | 6.88 | ||||
Show | 14 51 23 +19 06 07 | STF 1888 BE | 2016 | 15 | 99 | 273.1 | 6.95 | 8.65 | 1.70 |
Name | Xi Boo | Constellation | Bootes | SAO | 101250 | HIP | 72659 | ||||
Tycho2 | 1481-00722-1 | Gaia DR2 | 1237090738916392704 | HD | 131156 | HR | 5544 | ||||
GC | 19991 | ADS | 9413 | GL | Gl 566A | BD | BD+19 2870 | ||||
Bayer | Xi Bootis | Bayer name | Xi Boo | Flamsteed | 37 Bootis | Flamsteed name | 37 Boo | ||||
Distance | 6.71 | Distance ly | 21.89 | Bayer greek | ξ Boo |
Period (P) | 152.9614y | ± 0.1204 | Periastron (T) | 1909.6213y | ± 0.0655 | Semi-major axis (a) | 4.93454a | ± 0.00463 |
Eccentricity (e) | 0.51385 | ± 0.00079 | Inclination (i) | 140.453° | ± 0.103 | Longitude of periastron (ω) | 25.492° | ± 0.518 |
Node (Ω) | 168.795° | ± 0.329 | Notes | n | Reference | Izm2019 | ||
Equinox | Last observation | 2015 | Grade | 2 | (1=Definitive, 9=Indet.) |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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discov_num | notes | refcode |
STF1888 | xi Boo = 37 Boo = EO Boo. | |
Three orbit solutions by Wielen (1962), only orbit #3 is now in the | Wln1962 | |
orbit catalog. The RV difference is small and renders identification | ||
of the ascending node uncertain. | ||
See Baize & Petit (1989) catalog of doubles with variable component. | Baz1989d | |
CHARA Array Limb-darkened diameter 1.196 +/- 0.014 mas, | CIA2012e | |
R = 0.863 +/- 0.011 \rsun, L = 0.645 +/-0.015 \lsun, | ||
Teff = 5580 +/- 46 K. | ||
AB: H 2 18. | MEv2010 | |
AB: Malkov et al. (2012) derive dynamical, photometric, and | ||
spectroscopic masses 1.59 +/- 0.21, 1.60, and 1.56 Msun, respectively. | Mlk2012 | |
AD: Optical pair, based on study of relative motion of the components | ||
using the method of apparent motion parameters. | Kiy2008 | |
AC: Rectilinear solution by Hurowitz et al. (2014). | USN2014a | |
AD: Rectilinear solution by Friedman et al. (2011). | USN2011a |
refcode | metd | author | reference |
Baz1989d | - | Baize, P. & Petit, M. | 1989A&AS...77..497B |
Baz1989d | A&AS 77, 497, 1989 | ||
CIA2012e | not j | Boyajian, T.S., McAlister, H.A., van Belle, G., Gies, D.R., ten Brummelaar, T.A., | 2012ApJ...746..101B |
CIA2012e | von Braun, K., Farrington, C., Goldfinger, P.J., O'Brien, D., Parks, J.R., | . | |
CIA2012e | Richardson, N.D., Ridgway, S., Schaefer, G., Sturmann, L., Sturmann, J., Touhami, | . | |
CIA2012e | Y., Turner, N.H. & White, R. | . | |
CIA2012e | ApJ 746, 101, 2012 | . | |
Izm2019 | orb u | Izmailov, I.S. | 2019AstL...45...30I |
Izm2019 | Ast. Lett. 45, 30, 2019 | ||
Izm2019 | (Orbital elements from weighted solutions used when available (Table 2), | ||
Izm2019 | unweighted elements (Table 1) used for remaining 29 systems.) | ||
Kiy2008 | - | Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. | 2008SvAL...32..405K |
Kiy2008 | SvAL 34, 405, 2008 | ||
MEv2010 | - | MacEvoy, B. | ................... |
MEv2010 | private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) | ||
Mlk2012 | not - | Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. | 2012A&A...546A..69M |
Mlk2012 | A&A 546, A69, 2012 | ||
USN2011a | lin - | Friedman, E.A., Mason, B.D., & Hartkopf, W.I. | 2011IAUDS.175....1F |
USN2011a | Inf. Circ. 175, 1, 2011 | ||
USN2014a | lin - | Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. | 2014IAUDS.182....1H |
USN2014a | Inf. Circ. 182, 1, 2014 | ||
Wln1962 | orb - | Wielen, R. | 1962AJ.....67..599W |
Wln1962 | AJ 67, 599, 1962 |
idgroup | discov | author |
1 | ARN | Arnold, D. |
100 | STF | Struve, F.G.W. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
14514+1906 | STF1888 | AB | 2007 | 1361 | 311 | 6.3 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2008 | 1366 | 309 | 6.2 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2009 | 1368 | 310 | 6.4 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2010 | 1386 | 310 | 5.9 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2011 | 1401 | 308 | 6.0 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2012 | 1402 | 306 | 5.7 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2013 | 1414 | 306 | 5.7 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2014 | 1419 | 304 | 5.6 | 4.76 | 6.95 | G8V K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2015 | 1422 | 302 | 5.6 | 4.76 | 6.95 | G8V+K5V | NOD | 145123.28+190602.3 |
14514+1906 | STF1888 | AB | 2016 | 1439 | 302 | 5.5 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
14514+1906 | STF1888 | AB | 2017 | 1441 | 300 | 5.6 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
14514+1906 | STF1888 | AB | 2018 | 1447 | 300 | 5.3 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
14514+1906 | STF1888 | AB | 2019 | 1454 | 298 | 5.2 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
14514+1906 | STF1888 | AB | 2020 | 1462 | 297 | 5.2 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
14514+1906 | STF1888 | AB | 2021 | 1465 | 296 | 5.0 | 4.76 | 6.95 | G8V+K5V | NO | 145123.38+190601.7 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 23/06/16 | Daedalus1 | mean difficulty | separated | 292 | Very nice view. Bright yellow-white primary, Companion is orange and very much subdued. | |
Show | 11/04/26 | voyager75 | mean difficulty | separated | very interesting | Già separate a 35X come due stelline molto strette. Ben evidente la differenza di magnitudine. La primaria appare gialla e la secondaria azzurra. |
Show | date | username | difficulty | sep | sep_sigma | pa | pa_sigma | delta_mag | # | notes |
Show | 15/06/02 | inzet | difficut | 5.63 | 0.18 | 301.51 | 1.84 | 0.59 | 375 | |
Show | 15/07/13 | g.locatelli | mean difficulty | 6.00 | 0.07 | 303.00 | 0.38 | 1.54 | 1 | |
Show | 23/06/16 | Daedalus1 | mean difficulty | 4.85 | 0.07 | 292.00 | 0.00 | 2.14 | 12 | Seeing: Pickering 7, good |
Show | 20/05/21 | Zeitgenosse | 5.60 | 300.20 | 1 |
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 | D | E | |
B | pa=317.5° sep=6.92" | ||||
C | pa=340.9° sep=70.81" | pa=343.4° sep=64.52" | |||
D | pa=287.2° sep=152.67" | pa=285.8° sep=146.73" | pa=259.9° sep=124.62" | ||
E | pa=97.9° sep=256.78" | pa=98.9° sep=262.16" | pa=110.3° sep=295.73" | pa=101.4° sep=408.20" | |
F | pa=37.0° sep=328.30" | pa=38.2° sep=327.11" | pa=48.5° sep=294.71" | pa=57.7° sep=406.28" | pa=349.2° sep=302.88" |
Name | Xi Boo | Coord arcsec 2000 | 145123.38+190601.7 | Mag | 4.76 | Spectral class | G8V (yellow) | ||||
PmRA | 153.00 | PmDE | -72.0 | SAO | 101250 | HIP | 72659 | ||||
Tycho2 | 1481-00722-1 | HD | 131156 | HR | 5544 | GC | 19991 | ||||
BD | BD+19 2870 | Bayer | Xi Bootis | Bayer name | Xi | Flamsteed | 37 Bootis | ||||
Flamsteed name | 37 Boo |
Tycho2 | 1481-00722-1 | Pflag | X | RAmdeg | DEmdeg | ||||||
PmRA | PmDE | E RAmdeg | E DEmdeg | ||||||||
E pmRA | E pmDE | EpRAm | EpDEm | ||||||||
Num | Q RAmdeg | Q DEmdeg | Q pmRA | ||||||||
Q pmDE | BTmag | 5.575 | E BTmag | 0.014 | VTmag | 4.757 | |||||
E VTmag | 0.009 | Prox | 71 | TYC | T | HIP | 72659 | ||||
CCDM | A | RAdeg | 222.84702500 | DEdeg | 19.10062500 | EpRA 1990 | 1.43 | ||||
EpDE 1990 | 1.61 | E RAdeg | 3.6 | E DEdeg | 3.6 | Posflg | |||||
Corr | 0.2 |
SAO | 101250 | DelFlag | RA1950 | PmRA1950 | 0.0096 | ||||||
DE1950 | PmDE1950 | -0.103 | Vmag | 4.6 | SpType | G5 | |||||
Double code | Source | 70 | CatNum | 19991 | DM | BD+19 2870 | |||||
DMcomp | BDsup | HD | 131156 | M HD | 0 | ||||||
GC | 19991 | RA1950rad | 3.87934214 | DE1950rad | 0.33697945 | PmRA2000 | 0.0097 | ||||
PmDE2000 | -0.098 |
Catalog | H | HIP | 72659 | Proxy | H | RAhms | 14 51 23.28 | ||||
DEdms | +19 06 02.3 | Vmag | 4.54 | VarFlag | 1 | R Vmag | H | ||||
RAdeg | 222.847 | DEdeg | 19.1006 | AstroRef | A | Plx | 149.26 | ||||
CCDM | 14513+1906 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 325 | Rho | 7.071 | HD | 131156 | BD | BD+19 2870 | ||||
CD | CP | Dm number | +19 2870 | VIred | 0.82 | ||||||
SpType | G8V + K4V | R SpType | Coord arcsec 2000 | 145123.28+190602.3 |
HIP | 72659 | Sn | 17 | So | 3 | Nc | 2 | ||||
RArad | 3.8894141879 | DErad | 0.333368944 | Plx | 148.98 | PmRA | 154.98 | ||||
PmDE | -66.43 | E RArad | 0.34 | E DErad | 0.38 | E Plx | 0.48 | ||||
E pmRA | 0.4 | E pmDE | 0.45 | Hpmag | 4.6801 | E Hpmag | 0.0013 | ||||
SHp | 0.013 | VA | 2 | BV | 0.72 | E BV | 0.015 | ||||
VI | 0.82 |
Coord arcsec 2000 | 145123.05+190606.8 | Coord calc | 145123.05+190606.8 | Mag | 6.95 | Spectral class | K5V (yellow-orange) | ||||
PmRA | 90.00 | PmDE | -147.0 | Calc delta mag | 2.19 |
Coord arcsec 2000 | 145121.75+190708.6 | Mag | 13.83 | Spectral class | K4Ve (yellow-orange) | PmRA | -2.00 | ||||
PmDE | -48.0 | Calc delta mag | 9.07 | Calc coord | yes |
Coord arcsec 2000 | 145113.09+190646.8 | Mag | 11.73 | Spectral class | K4Ve (yellow-orange) | PmRA | -5.00 | ||||
PmDE | 3.0 | Calc delta mag | 6.97 | Calc coord | yes |
Coord arcsec 2000 | 145141.32+190526.3 | Mag | 8.65 | Spectral class | K4Ve (yellow-orange) | PmRA | 2.00 | ||||
PmDE | -4.0 | HIP | 72689 | Tycho2 | 1481-00660-1 | BD | BD+19 2873 | ||||
Calc delta mag | 3.89 | Calc coord | yes |
Tycho2 | 1481-00660-1 | Pflag | RAmdeg | 222.92592787 | DEmdeg | 19.08922850 | |||||
PmRA | 4.0 | PmDE | -4.3 | E RAmdeg | 12 | E DEmdeg | 10 | ||||
E pmRA | 1.0 | E pmDE | 1.1 | EpRAm | 1988.61 | EpDEm | 1989.77 | ||||
Num | 13 | Q RAmdeg | 0.5 | Q DEmdeg | 0.5 | Q pmRA | 0.5 | ||||
Q pmDE | 0.5 | BTmag | 10.692 | E BTmag | 0.046 | VTmag | 8.646 | ||||
E VTmag | 0.016 | Prox | 999 | TYC | T | HIP | 72689 | ||||
CCDM | RAdeg | 222.92591833 | DEdeg | 19.08923917 | EpRA 1990 | 1.46 | |||||
EpDE 1990 | 1.67 | E RAdeg | 12.5 | E DEdeg | 10.5 | Posflg | |||||
Corr | 0.3 |
Catalog | H | HIP | 72689 | Proxy | RAhms | 14 51 42.22 | |||||
DEdms | +19 05 21.3 | Vmag | 8.48 | VarFlag | 2 | R Vmag | H | ||||
RAdeg | 222.926 | DEdeg | 19.0892 | AstroRef | Plx | 2.01 | |||||
CCDM | N CCDM | Nsys | Ncomp | 1 | |||||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | BD | BD+19 2873 | |||||||
CD | CP | Dm number | +19 2873 | VIred | 2.1 | ||||||
SpType | M2III | R SpType | Coord arcsec 2000 | 145142.22+190521.3 |
HIP | 72689 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 3.8907911585 | DErad | 0.3331700369 | Plx | 2.16 | PmRA | 3.59 | ||||
PmDE | -4.2 | E RArad | 0.61 | E DErad | 0.69 | E Plx | 0.87 | ||||
E pmRA | 0.74 | E pmDE | 0.91 | Hpmag | 8.5342 | E Hpmag | 0.0048 | ||||
SHp | 0.044 | VA | 2 | BV | 1.761 | E BV | 0.074 | ||||
VI | 2.23 |
Coord arcsec 2000 | 145137.33+191023.8 | Mag | 9.2 | Spectral class | K4Ve (yellow-orange) | PmRA | -24.00 | ||||
PmDE | -8.0 | Tycho2 | 1481-00708-1 | Calc delta mag | 4.44 | Calc coord | yes |
Tycho2 | 1481-00708-1 | Pflag | RAmdeg | 222.90851236 | DEmdeg | 19.17321887 | |||||
PmRA | -22.7 | PmDE | -7.4 | E RAmdeg | 15 | E DEmdeg | 14 | ||||
E pmRA | 1.2 | E pmDE | 1.2 | EpRAm | 1988.42 | EpDEm | 1988.88 | ||||
Num | 10 | Q RAmdeg | 1.1 | Q DEmdeg | 0.7 | Q pmRA | 1.1 | ||||
Q pmDE | 0.7 | BTmag | 10.680 | E BTmag | 0.042 | VTmag | 9.200 | ||||
E VTmag | 0.019 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 222.90856750 | DEdeg | 19.17323722 | EpRA 1990 | 1.47 | |||||
EpDE 1990 | 1.65 | E RAdeg | 15.9 | E DEdeg | 15.0 | Posflg | |||||
Corr | 0.2 |