00008+1659 BAG 18
00h 00m 48.09s +16° 59' 17.5" P.A. 334.00 sep 0.7 mag 8.79,12.60 Sp K0 dist. 31.59 pc (103.05 l.y.)
Coord 2000 |
00008+1659 |
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Discov num |
BAG 18 |
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Comp |
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Coord arcsec 2000 |
00 00 48.09 +16 59 17.5 |
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Date first |
2001 |
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Date last |
2019 |
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Obs |
10 |
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Pa first |
37 |
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Pa last |
333.9 |
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P.A. Now (θ) |
333.9° |
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Sep first |
0.5 |
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Sep last |
0.72 |
|
Sep. Now (ρ) |
0.72" |
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Mag pri |
8.79 |
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Mag sec |
12.60 |
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delta mag (ΔM) |
3.81 |
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Spectral class |
K0 (yellow-orange) |
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Pri motion ra |
-100 |
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Sec motion ra |
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Pri motion dec |
-316 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pegasus |
|
SAO |
108960 |
|
HIP |
68 |
|
Tycho2 |
1178-01142-1 |
|
HD |
224808 |
|
GC |
33299 |
|
BD |
BD+16 5027 |
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Distance |
31.59 |
|
Distance ly |
103.05 |
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ORBITAL ELEMENTS
Period (P) | 66.62y | |
Periastron (T) | 1990.25y | |
Semi-major axis (a) | 0.531a | |
Eccentricity (e) | 0.372 | |
Inclination (i) | 167.7° | |
Longitude of periastron (ω) | 358.9° | |
Node (Ω) | 142.2° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
48.0 |
0.463 |
2001 |
41.8 |
0.482 |
2002 |
36.1 |
0.502 |
2003 |
30.8 |
0.521 |
2004 |
25.9 |
0.540 |
2005 |
21.3 |
0.558 |
2006 |
17.0 |
0.575 |
2007 |
13.0 |
0.592 |
2008 |
9.1 |
0.607 |
2009 |
5.5 |
0.622 |
2010 |
2.0 |
0.636 |
2011 |
358.6 |
0.649 |
2012 |
355.4 |
0.661 |
2013 |
352.3 |
0.672 |
2014 |
349.3 |
0.682 |
2015 |
346.4 |
0.692 |
2016 |
343.5 |
0.700 |
2017 |
340.7 |
0.707 |
2018 |
338.0 |
0.713 |
2019 |
335.3 |
0.718 |
2020 |
332.6 |
0.722 |
2021 |
330.0 |
0.725 |
2022 |
327.3 |
0.727 |
2023 |
324.7 |
0.728 |
2024 |
322.1 |
0.728 |
2025 |
319.5 |
0.728 |
2026 |
316.9 |
0.726 |
2027 |
314.3 |
0.723 |
2028 |
311.6 |
0.719 |
2029 |
308.9 |
0.714 |
2030 |
306.2 |
0.708 |
2031 |
303.4 |
0.701 |
2032 |
300.6 |
0.693 |
2033 |
297.6 |
0.684 |
2034 |
294.6 |
0.674 |
2035 |
291.6 |
0.663 |
2036 |
288.4 |
0.651 |
2037 |
285.0 |
0.638 |
2038 |
281.6 |
0.625 |
2039 |
277.9 |
0.610 |
2040 |
274.1 |
0.594 |
2041 |
270.1 |
0.578 |
2042 |
265.8 |
0.560 |
2043 |
261.3 |
0.542 |
2044 |
256.4 |
0.524 |
2045 |
251.2 |
0.505 |
2046 |
245.6 |
0.485 |
2047 |
239.4 |
0.465 |
2048 |
232.8 |
0.445 |
2049 |
225.5 |
0.426 |
2050 |
217.5 |
0.407 |
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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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