09524+2659 STF 1389 (HD 85441)
09h 52m 26.17s +26° 58' 53.8" P.A. 290.00 sep 2.4 mag 9.12,9.50 Sp K0 dist. 57.54 pc (187.7 l.y.)
Coord 2000 |
09524+2659 |
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Discov num |
STF1389 |
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Comp |
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Coord arcsec 2000 |
09 52 26.17 +26 58 53.8 |
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Date first |
1830 |
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Date last |
2019 |
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Obs |
158 |
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Pa first |
329 |
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Pa last |
289.6 |
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P.A. Now (θ) |
289.6° |
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Sep first |
1.7 |
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Sep last |
2.44 |
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Sep. Now (ρ) |
2.44" |
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Mag pri |
9.12 |
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Mag sec |
9.50 |
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delta mag (ΔM) |
0.38 |
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Spectral class |
K0 (yellow-orange) |
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Pri motion ra |
+118 |
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Sec motion ra |
+100 |
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Pri motion dec |
-180 |
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Sec motion dec |
-180 |
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Notes |
O
(Orbital solution) |
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rPM=0.084 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 85441 |
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Constellation |
Leo |
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SAO |
81060 |
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HIP |
48429 |
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Tycho2 |
1964-00034-1 |
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Gaia DR2 |
646994083923349632 |
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HD |
85441 |
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GC |
13579 |
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ADS |
7551 |
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BD |
BD+27 1819 |
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Distance |
57.54 |
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Distance ly |
187.7 |
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ORBITAL ELEMENTS
Period (P) | 1454y | |
Periastron (T) | 2420.07y | |
Semi-major axis (a) | 2.773a | |
Eccentricity (e) | 0.307 | |
Inclination (i) | 122.7° | |
Longitude of periastron (ω) | 265.1° | |
Node (Ω) | 80.9° | |
Notes | | |
Reference | Lin2016a | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
292.5 |
2.470 |
2001 |
292.4 |
2.473 |
2002 |
292.2 |
2.475 |
2003 |
292.1 |
2.477 |
2004 |
291.9 |
2.480 |
2005 |
291.7 |
2.482 |
2006 |
291.6 |
2.484 |
2007 |
291.4 |
2.487 |
2008 |
291.3 |
2.489 |
2009 |
291.1 |
2.491 |
2010 |
290.9 |
2.493 |
2011 |
290.8 |
2.495 |
2012 |
290.6 |
2.498 |
2013 |
290.5 |
2.500 |
2014 |
290.3 |
2.502 |
2015 |
290.2 |
2.504 |
2016 |
290.0 |
2.506 |
2017 |
289.8 |
2.508 |
2018 |
289.7 |
2.511 |
2019 |
289.5 |
2.513 |
2020 |
289.4 |
2.515 |
2021 |
289.2 |
2.517 |
2022 |
289.1 |
2.519 |
2023 |
288.9 |
2.521 |
2024 |
288.8 |
2.523 |
2025 |
288.6 |
2.525 |
2026 |
288.5 |
2.527 |
2027 |
288.3 |
2.529 |
2028 |
288.2 |
2.531 |
2029 |
288.0 |
2.533 |
2030 |
287.8 |
2.535 |
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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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