00576+5424 HLD 4 (HD 5502)
00h 57m 35.79s +54° 23' 44.8" P.A. 50.00 sep 0.4 mag 9.00,9.50 Sp G0
| Coord 2000 |
00576+5424 |
|
Discov num |
HLD 4 |
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Comp |
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Coord arcsec 2000 |
00 57 35.79 +54 23 44.8 |
|
| Date first |
1881 |
|
Date last |
2016 |
|
Obs |
37 |
|
| Pa first |
125 |
|
Pa last |
50 |
|
P.A. Now (θ) |
50° |
|
| Sep first |
1.0 |
|
Sep last |
0.406 |
|
Sep. Now (ρ) |
0.406" |
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| Mag pri |
9.00 |
|
Mag sec |
9.50 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
G0 (yellow) |
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| Pri motion ra |
+054 |
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Sec motion ra |
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| Pri motion dec |
-014 |
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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
| Name |
HD 5502 |
|
Constellation |
Cassiopeia |
|
SAO |
21874 |
|
Tycho2 |
3672-00063-1 |
|
| Gaia DR2 |
417343518342363136 |
|
HD |
5502 |
|
ADS |
795 |
|
ORBITAL ELEMENTS
| Period (P) | 788.16y | |
Periastron (T) | 1990.92y | |
Semi-major axis (a) | 0.948a | |
| Eccentricity (e) | 0.892 | |
Inclination (i) | 13.3° | |
Longitude of periastron (ω) | 191.7° | |
| Node (Ω) | 90.1° | |
Notes | | |
Reference | Mnt2001c | |
| Equinox | | |
Last observation | 1996 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
16.0 |
0.201 |
| 2001 |
20.2 |
0.216 |
| 2002 |
23.8 |
0.230 |
| 2003 |
27.0 |
0.245 |
| 2004 |
29.9 |
0.259 |
| 2005 |
32.5 |
0.273 |
| 2006 |
34.8 |
0.287 |
| 2007 |
36.8 |
0.301 |
| 2008 |
38.8 |
0.314 |
| 2009 |
40.5 |
0.328 |
| 2010 |
42.1 |
0.341 |
| 2011 |
43.6 |
0.354 |
| 2012 |
45.0 |
0.366 |
| 2013 |
46.3 |
0.379 |
| 2014 |
47.5 |
0.391 |
| 2015 |
48.7 |
0.404 |
| 2016 |
49.8 |
0.416 |
| 2017 |
50.8 |
0.427 |
| 2018 |
51.7 |
0.439 |
| 2019 |
52.7 |
0.451 |
| 2020 |
53.5 |
0.462 |
| 2021 |
54.3 |
0.473 |
| 2022 |
55.1 |
0.484 |
| 2023 |
55.9 |
0.495 |
| 2024 |
56.6 |
0.506 |
| 2025 |
57.3 |
0.517 |
| 2026 |
58.0 |
0.528 |
| 2027 |
58.6 |
0.538 |
| 2028 |
59.2 |
0.548 |
| 2029 |
59.8 |
0.559 |
| 2030 |
60.4 |
0.569 |
| 2031 |
60.9 |
0.579 |
| 2032 |
61.4 |
0.589 |
| 2033 |
62.0 |
0.598 |
| 2034 |
62.5 |
0.608 |
| 2035 |
62.9 |
0.618 |
| 2036 |
63.4 |
0.627 |
| 2037 |
63.8 |
0.637 |
| 2038 |
64.3 |
0.646 |
| 2039 |
64.7 |
0.655 |
| 2040 |
65.1 |
0.664 |
| 2041 |
65.5 |
0.673 |
| 2042 |
65.9 |
0.682 |
| 2043 |
66.3 |
0.691 |
| 2044 |
66.7 |
0.700 |
| 2045 |
67.0 |
0.709 |
| 2046 |
67.4 |
0.717 |
| 2047 |
67.7 |
0.726 |
| 2048 |
68.1 |
0.734 |
| 2049 |
68.4 |
0.743 |
| 2050 |
68.7 |
0.751 |
|
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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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