23078+3947 STF 2979 (HD 218453)
23h 07m 47.88s +39° 47' 46.8" P.A. 229.00 sep 2.8 mag 7.92,9.99 Sp F0IV dist. 112.36 pc (366.52 l.y.)
Coord 2000 |
23078+3947 |
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Discov num |
STF2979 |
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Comp |
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Coord arcsec 2000 |
23 07 47.88 +39 47 46.8 |
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Date first |
1828 |
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Date last |
2022 |
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Obs |
39 |
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Pa first |
221 |
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Pa last |
228.9 |
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P.A. Now (θ) |
228.9° |
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Sep first |
2.3 |
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Sep last |
2.78 |
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Sep. Now (ρ) |
2.78" |
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Mag pri |
7.92 |
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Mag sec |
9.99 |
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delta mag (ΔM) |
2.07 |
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Spectral class |
F0IV (yellow-white) |
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Pri motion ra |
+043 |
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Sec motion ra |
+043 |
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Pri motion dec |
+022 |
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Sec motion dec |
+022 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 218453 |
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Constellation |
Andromeda |
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SAO |
73019 |
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HIP |
114214 |
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Tycho2 |
3220-01130-1 |
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Gaia DR2 |
1929944726984594944 |
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HD |
218453 |
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GC |
32218 |
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ADS |
16527 |
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BD |
BD+39 5008 |
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Distance |
112.36 |
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Distance ly |
366.52 |
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ORBITAL ELEMENTS
Period (P) | 2470.5611y | ± 1086.6835 |
Periastron (T) | 2206.2238y | ± 535.5234 |
Semi-major axis (a) | 5.58854a | ± 2.94827 |
Eccentricity (e) | 0.87206 | ± 0.11794 |
Inclination (i) | 77.441° | ± 6.457 |
Longitude of periastron (ω) | 270.253° | ± 12.266 |
Node (Ω) | 64.682° | ± 35.861 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
227.7 |
2.827 |
2001 |
227.7 |
2.824 |
2002 |
227.8 |
2.821 |
2003 |
227.8 |
2.819 |
2004 |
227.9 |
2.816 |
2005 |
228.0 |
2.813 |
2006 |
228.0 |
2.810 |
2007 |
228.1 |
2.807 |
2008 |
228.1 |
2.805 |
2009 |
228.2 |
2.802 |
2010 |
228.3 |
2.799 |
2011 |
228.3 |
2.796 |
2012 |
228.4 |
2.793 |
2013 |
228.5 |
2.790 |
2014 |
228.5 |
2.787 |
2015 |
228.6 |
2.784 |
2016 |
228.6 |
2.781 |
2017 |
228.7 |
2.777 |
2018 |
228.8 |
2.774 |
2019 |
228.8 |
2.771 |
2020 |
228.9 |
2.768 |
2021 |
229.0 |
2.765 |
2022 |
229.0 |
2.761 |
2023 |
229.1 |
2.758 |
2024 |
229.1 |
2.755 |
2025 |
229.2 |
2.751 |
2026 |
229.3 |
2.748 |
2027 |
229.3 |
2.744 |
2028 |
229.4 |
2.741 |
2029 |
229.5 |
2.737 |
2030 |
229.5 |
2.733 |
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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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