13048+5555 WOR 23
13h 04m 46.59s +55° 54' 10.0" P.A. 163.00 sep 2.0 mag 11.24,12.21 Sp M0V dist. 32.65 pc (106.5 l.y.)
Coord 2000 |
13048+5555 |
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Discov num |
WOR 23 |
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Comp |
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Coord arcsec 2000 |
13 04 46.59 +55 54 10.0 |
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Date first |
1960 |
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Date last |
2017 |
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Obs |
24 |
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Pa first |
131 |
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Pa last |
162.6 |
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P.A. Now (θ) |
162.6° |
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Sep first |
0.9 |
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Sep last |
1.976 |
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Sep. Now (ρ) |
1.976" |
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Mag pri |
11.24 |
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Mag sec |
12.21 |
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delta mag (ΔM) |
0.97 |
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Spectral class |
M0V (red) |
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Pri motion ra |
-180 |
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Sec motion ra |
-167 |
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Pri motion dec |
+028 |
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Sec motion dec |
+033 |
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Notes |
O
(Orbital solution) |
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rPM=0.076 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ursa Major |
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HIP |
63816 |
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Tycho2 |
3846-00405-3 |
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Gaia DR2 |
1564804504606689664 |
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Distance |
32.65 |
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Distance ly |
106.5 |
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ORBITAL ELEMENTS
Period (P) | 453.7496y | ± 235.0095 |
Periastron (T) | 2019.8517y | ± 8.7428 |
Semi-major axis (a) | 7.90896a | ± 6.22897 |
Eccentricity (e) | 0.9179 | ± 0.15567 |
Inclination (i) | 87.124° | ± 3.965 |
Longitude of periastron (ω) | 74.675° | ± 15.591 |
Node (Ω) | 165.117° | ± 5.018 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
158.2 |
1.745 |
2001 |
158.5 |
1.754 |
2002 |
158.8 |
1.761 |
2003 |
159.2 |
1.766 |
2004 |
159.5 |
1.768 |
2005 |
159.8 |
1.767 |
2006 |
160.1 |
1.763 |
2007 |
160.4 |
1.756 |
2008 |
160.7 |
1.744 |
2009 |
161.1 |
1.727 |
2010 |
161.4 |
1.703 |
2011 |
161.8 |
1.673 |
2012 |
162.1 |
1.632 |
2013 |
162.5 |
1.580 |
2014 |
162.9 |
1.513 |
2015 |
163.4 |
1.425 |
2016 |
163.9 |
1.307 |
2017 |
164.6 |
1.145 |
2018 |
165.5 |
0.913 |
2019 |
167.3 |
0.570 |
2020 |
183.9 |
0.101 |
2021 |
340.6 |
0.413 |
2022 |
343.4 |
0.845 |
2023 |
344.3 |
1.196 |
2024 |
344.9 |
1.488 |
2025 |
345.3 |
1.737 |
2026 |
345.5 |
1.954 |
2027 |
345.8 |
2.147 |
2028 |
346.0 |
2.320 |
2029 |
346.1 |
2.479 |
2030 |
346.3 |
2.624 |
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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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