12442+5146 RDR 5
12h 44m 14.54s +51° 45' 33.4" P.A. 281.00 sep 2.3 mag 4.78,8.97 Sp K3+K3+M5
Coord 2000 |
12442+5146 |
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Discov num |
RDR 5 |
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Comp |
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Coord arcsec 2000 |
12 44 14.54 +51 45 33.4 |
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Date first |
2003 |
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Date last |
2018 |
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Obs |
9 |
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Pa first |
243 |
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Pa last |
280.5 |
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P.A. Now (θ) |
280.5° |
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Sep first |
1.3 |
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Sep last |
2.288 |
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Sep. Now (ρ) |
2.288" |
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Mag pri |
4.78 |
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Mag sec |
8.97 |
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delta mag (ΔM) |
4.19 |
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Spectral class |
K3+K3+M5 (yellow-orange/yellow-orange) |
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Pri motion ra |
-379 |
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Sec motion ra |
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Pri motion dec |
-184 |
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Sec motion dec |
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Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Canes Venatici |
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SUSPECTED ORBITAL ELEMENTS
Identifier | 12442+5146 |
coord_arcsec_2000 | 124414.90+514535.1 |
Period (P) | 270.2108d | ± 3.3137 |
Periastron (T) | 48401.4258d (1991.394y) | ± 8.9533 |
Semi-major axis (a) | 7.19m | ± 0.71 |
Eccentricity (e) | 0 | |
Inclination (i) | 48.85° | ± 10.2 |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 154.94° | ± 13.01 |
Notes | n | |
Reference | HIP1997d | |
Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
10.9 |
0.006 |
2001-01-01 |
151.2 |
0.007 |
2002-01-01 |
287.3 |
0.005 |
2003-01-01 |
32.9 |
0.005 |
2004-01-01 |
164.4 |
0.007 |
2005-01-01 |
306.7 |
0.006 |
2006-01-01 |
61.0 |
0.005 |
2007-01-01 |
178.9 |
0.007 |
2008-01-01 |
321.9 |
0.007 |
2009-01-01 |
90.2 |
0.005 |
2010-01-01 |
197.0 |
0.006 |
2011-01-01 |
335.2 |
0.007 |
2012-01-01 |
113.9 |
0.006 |
2013-01-01 |
221.0 |
0.005 |
2014-01-01 |
348.6 |
0.007 |
2015-01-01 |
131.7 |
0.007 |
2016-01-01 |
250.3 |
0.005 |
2017-01-01 |
4.0 |
0.006 |
2018-01-01 |
146.1 |
0.007 |
2019-01-01 |
278.2 |
0.005 |
2020-01-01 |
23.6 |
0.005 |
2021-01-01 |
159.3 |
0.007 |
2022-01-01 |
299.9 |
0.006 |
2023-01-01 |
49.6 |
0.005 |
2024-01-01 |
173.0 |
0.007 |
2025-01-01 |
316.4 |
0.007 |
2026-01-01 |
79.4 |
0.005 |
2027-01-01 |
189.4 |
0.006 |
2028-01-01 |
330.2 |
0.007 |
2029-01-01 |
105.6 |
0.005 |
2030-01-01 |
210.9 |
0.005 |
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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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