12335+0901 REU 1
12h 33m 17.36s +09° 01' 15.8" P.A. 290.00 sep 0.4 mag 12.60,12.60 Sp M5.5V
Coord 2000 |
12335+0901 |
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Discov num |
REU 1 |
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Comp |
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Coord arcsec 2000 |
12 33 17.36 +09 01 15.8 |
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Date first |
1938 |
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Date last |
2021 |
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Obs |
97 |
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Pa first |
322 |
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Pa last |
290.4 |
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P.A. Now (θ) |
160.6° |
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Sep first |
0.7 |
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Sep last |
0.355 |
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Sep. Now (ρ) |
0.423" |
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Mag pri |
12.60 |
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Mag sec |
12.60 |
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delta mag (ΔM) |
0 |
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Spectral class |
M5.5V (red) |
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Pri motion ra |
-173 |
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Sec motion ra |
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Pri motion dec |
+022 |
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Sec motion dec |
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Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
Period (P) | 15.826y | ± 0.017 |
Periastron (T) | 60325d (2024.04y) | ± 12 |
Semi-major axis (a) | 919.7m | ± 1.3 |
Eccentricity (e) | 0.2988 | ± 0.0012 |
Inclination (i) | 103.09° | ± 0.14 |
Longitude of periastron (ω) | 349.76° | ± 0.77 |
Node (Ω) | 143.18° | ± 0.23 |
Notes | n | |
Reference | MnA2019 | |
Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
326.4 |
1.159 |
2001 |
323.5 |
1.188 |
2002 |
320.4 |
1.133 |
2003 |
316.8 |
0.993 |
2004 |
311.4 |
0.767 |
2005 |
300.0 |
0.468 |
2006 |
247.0 |
0.188 |
2007 |
165.2 |
0.371 |
2008 |
147.8 |
0.611 |
2009 |
137.5 |
0.618 |
2010 |
121.8 |
0.409 |
2011 |
63.7 |
0.201 |
2012 |
356.5 |
0.382 |
2013 |
340.2 |
0.665 |
2014 |
333.4 |
0.903 |
2015 |
329.2 |
1.075 |
2016 |
325.9 |
1.170 |
2017 |
322.9 |
1.185 |
2018 |
319.8 |
1.115 |
2019 |
316.0 |
0.959 |
2020 |
310.1 |
0.720 |
2021 |
296.2 |
0.411 |
2022 |
225.1 |
0.180 |
2023 |
160.6 |
0.423 |
2024 |
145.9 |
0.632 |
2025 |
135.6 |
0.594 |
2026 |
117.0 |
0.363 |
2027 |
45.7 |
0.204 |
2028 |
352.1 |
0.432 |
2029 |
338.7 |
0.710 |
2030 |
332.6 |
0.938 |
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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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