17251+5312 MLR 604
17h 25m 04.81s +53° 11' 15.4" P.A. 96.00 sep 0.8 mag 10.99,11.18
Coord 2000 |
17251+5312 |
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Discov num |
MLR 604 |
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Comp |
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Coord arcsec 2000 |
17 25 04.81 +53 11 15.4 |
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Date first |
1981 |
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Date last |
2015 |
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Obs |
8 |
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Pa first |
86 |
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Pa last |
95.9 |
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P.A. Now (θ) |
95.9° |
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Sep first |
0.7 |
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Sep last |
0.827 |
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Sep. Now (ρ) |
0.827" |
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Mag pri |
10.99 |
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Mag sec |
11.18 |
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delta mag (ΔM) |
0.19 |
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Spectral class |
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Pri motion ra |
+007 |
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Sec motion ra |
+007 |
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Pri motion dec |
-041 |
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Sec motion dec |
-041 |
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Notes |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
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Tycho2 |
3888-00728-1 |
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Gaia DR2 |
1416262029882893568 |
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SUSPECTED ORBITAL ELEMENTS
Identifier | 17251+5308 |
coord_arcsec_2000 | 172508.32+530757.9 |
Period (P) | 206.088d | ± 0.018 |
Periastron (T) | 54309.15d (2007.569y) | ± 0.16 |
Semi-major axis (a) | 5.3m | ± 0.02 |
Eccentricity (e) | 0.4126 | ± 0.0017 |
Inclination (i) | 62.4° | ± 5.4 |
Longitude of periastron (ω) | 78.94° | ± 0.3 |
Node (Ω) | 221.1° | ± 6.8 |
Notes | | |
Reference | SaJ2013b | |
Equinox | | |
Last observation | 2012 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
138.1 |
0.003 |
2001-01-01 |
74.2 |
0.005 |
2002-01-01 |
37.6 |
0.004 |
2003-01-01 |
222.0 |
0.004 |
2004-01-01 |
168.5 |
0.004 |
2005-01-01 |
93.2 |
0.004 |
2006-01-01 |
52.7 |
0.005 |
2007-01-01 |
274.4 |
0.002 |
2008-01-01 |
191.8 |
0.004 |
2009-01-01 |
120.2 |
0.004 |
2010-01-01 |
65.9 |
0.005 |
2011-01-01 |
23.6 |
0.003 |
2012-01-01 |
210.6 |
0.004 |
2013-01-01 |
152.2 |
0.003 |
2014-01-01 |
81.8 |
0.005 |
2015-01-01 |
45.0 |
0.005 |
2016-01-01 |
234.9 |
0.003 |
2017-01-01 |
179.7 |
0.004 |
2018-01-01 |
104.1 |
0.004 |
2019-01-01 |
58.4 |
0.005 |
2020-01-01 |
345.6 |
0.002 |
2021-01-01 |
200.3 |
0.005 |
2022-01-01 |
134.3 |
0.003 |
2023-01-01 |
72.4 |
0.005 |
2024-01-01 |
35.4 |
0.004 |
2025-01-01 |
219.4 |
0.004 |
2026-01-01 |
165.4 |
0.004 |
2027-01-01 |
90.7 |
0.004 |
2028-01-01 |
51.2 |
0.005 |
2029-01-01 |
261.5 |
0.002 |
2030-01-01 |
189.4 |
0.004 |
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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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