02470+5007 ARG 9 (HD 17159)
02h 47m 00.22s +50° 07' 27.7" P.A. 152.00 sep 2.6 mag 8.86,9.05 Sp F8 dist. 78.62 pc (256.46 l.y.)
Coord 2000 |
02470+5007 |
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Discov num |
ARG 9 |
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Comp |
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Coord arcsec 2000 |
02 47 00.22 +50 07 27.7 |
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Date first |
1900 |
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Date last |
2018 |
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Obs |
40 |
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Pa first |
143 |
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Pa last |
151.5 |
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P.A. Now (θ) |
151.5° |
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Sep first |
3.2 |
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Sep last |
2.556 |
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Sep. Now (ρ) |
2.556" |
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Mag pri |
8.86 |
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Mag sec |
9.05 |
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delta mag (ΔM) |
0.19 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
-001 |
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Sec motion ra |
-001 |
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Pri motion dec |
+003 |
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Sec motion dec |
+003 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 17159 |
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Constellation |
Perseus |
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SAO |
38322 |
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HIP |
12984 |
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Tycho2 |
3304-00795-1 |
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Gaia DR2 |
438975108246989568 |
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HD |
17159 |
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ADS |
2112 |
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BD |
BD+49 770 |
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Distance |
78.62 |
|
Distance ly |
256.46 |
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ORBITAL ELEMENTS
Period (P) | 1145.5025y | ± 557.3951 |
Periastron (T) | 1805.1869y | ± 298.0128 |
Semi-major axis (a) | 5.68293a | ± 2.96409 |
Eccentricity (e) | 0.76908 | ± 0.18721 |
Inclination (i) | 86.295° | ± 4.954 |
Longitude of periastron (ω) | 278.39° | ± 20.643 |
Node (Ω) | 141.303° | ± 12.949 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
149.9 |
2.679 |
2001 |
150.0 |
2.671 |
2002 |
150.0 |
2.664 |
2003 |
150.1 |
2.656 |
2004 |
150.1 |
2.649 |
2005 |
150.2 |
2.641 |
2006 |
150.3 |
2.634 |
2007 |
150.3 |
2.626 |
2008 |
150.4 |
2.618 |
2009 |
150.4 |
2.610 |
2010 |
150.5 |
2.603 |
2011 |
150.6 |
2.595 |
2012 |
150.6 |
2.587 |
2013 |
150.7 |
2.579 |
2014 |
150.8 |
2.571 |
2015 |
150.8 |
2.563 |
2016 |
150.9 |
2.555 |
2017 |
150.9 |
2.547 |
2018 |
151.0 |
2.539 |
2019 |
151.1 |
2.530 |
2020 |
151.1 |
2.522 |
2021 |
151.2 |
2.514 |
2022 |
151.3 |
2.506 |
2023 |
151.3 |
2.497 |
2024 |
151.4 |
2.489 |
2025 |
151.5 |
2.481 |
2026 |
151.5 |
2.472 |
2027 |
151.6 |
2.464 |
2028 |
151.7 |
2.455 |
2029 |
151.8 |
2.447 |
2030 |
151.8 |
2.438 |
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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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