Coord 2000 | 14514+1906 |
Discov num | STF1888 |
Comp | AB |
Coord arcsec 2000 | 14 51 23.38 +19 06 01.7 |
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Date first | 1780 |
Date last | 2020 |
Obs | 1463 |
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Pa first | 24 |
Pa last | 297 |
P.A. Now (θ) | 295.7° |
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Sep first | 3.4 |
Sep last | 5.2 |
Sep. Now (ρ) | 5.26" |
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Mag pri | 4.76 |
Mag sec | 6.95 |
delta mag (ΔM) | 2.19 |
Spectral class | G8V+K5V (yellow/yellow-orange) |
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Pri motion ra | +153 |
Sec motion ra | +090 |
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Pri motion dec | -072 |
Sec motion dec | -147 |
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Notes |
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 | 2020 | 1463 | 296 | 5.3 | 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 | 101250 | 14 51 23 +19 06 07 | STF 1888 BC | 2001 | 7 | 340 | 63.9 | 6.95 | 13.83 | 6.88 | |||
Show | 101250 | 14 51 23 +19 06 07 | STF 1888 BE | 2009 | 13 | 102 | 273.5 | 6.95 | 8.65 | 1.70 |
Precise pa | 296.6 |
Precise sep | 5.23 |
Name | Xi Boo |
Constellation | Bootes |
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SAO | 101250 |
HIP | 72659 |
Tycho2 | 1481-00722-1 |
Gaia DR2 | 1237090738916392704 |
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HD | 131156 |
HR | 5544 |
GC | 19991 |
ADS | 9413 |
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GL | Gl 566A |
BD | BD+19 2870 |
Bayer | Xi Bootis |
Bayer name | Xi Boo |
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Flamsteed | 37 Bootis |
Flamsteed name | 37 Boo |
Distance | 6.71 |
Distance ly | 21.89 |
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last precise pa | 296.6 |
last precise sep | 5.23 |
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 | Note | Grade | 2 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 2015 |
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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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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 |