00542+4318 COU 1654 (HD 5178)
00h 54m 11.08s +43° 17' 54.1" P.A. 90.00 sep 0.4 mag 8.40,8.40 Sp F0
| Coord 2000 |
00542+4318 |
|
Discov num |
COU1654 |
|
Comp |
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Coord arcsec 2000 |
00 54 11.08 +43 17 54.1 |
|
| Date first |
1978 |
|
Date last |
2008 |
|
Obs |
21 |
|
| Pa first |
107 |
|
Pa last |
90.3 |
|
P.A. Now (θ) |
90.3° |
|
| Sep first |
0.2 |
|
Sep last |
0.413 |
|
Sep. Now (ρ) |
0.413" |
|
| Mag pri |
8.40 |
|
Mag sec |
8.40 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F0 (yellow-white) |
|
| Pri motion ra |
+012 |
|
Sec motion ra |
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|
| Pri motion dec |
-014 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 5178 |
|
Constellation |
Andromeda |
|
SAO |
36758 |
|
Tycho2 |
2810-00453-1 |
|
| Gaia DR2 |
375705979365736704 |
|
HD |
5178 |
|
ORBITAL ELEMENTS
| Period (P) | 93y | |
Periastron (T) | 1918y | |
Semi-major axis (a) | 0.15a | |
| Eccentricity (e) | 0.564 | |
Inclination (i) | 109.7° | |
Longitude of periastron (ω) | 110° | |
| Node (Ω) | 91.5° | |
Notes | | |
Reference | USN2002 | |
| Equinox | 2000 | |
Last observation | 1995 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
91.3 |
0.126 |
| 2001 |
89.7 |
0.119 |
| 2002 |
87.9 |
0.111 |
| 2003 |
85.8 |
0.102 |
| 2004 |
83.2 |
0.092 |
| 2005 |
79.9 |
0.080 |
| 2006 |
75.4 |
0.068 |
| 2007 |
68.8 |
0.054 |
| 2008 |
57.4 |
0.040 |
| 2009 |
34.5 |
0.027 |
| 2010 |
351.6 |
0.023 |
| 2011 |
314.3 |
0.030 |
| 2012 |
295.9 |
0.044 |
| 2013 |
286.1 |
0.057 |
| 2014 |
279.8 |
0.068 |
| 2015 |
275.3 |
0.078 |
| 2016 |
271.7 |
0.085 |
| 2017 |
268.6 |
0.091 |
| 2018 |
265.8 |
0.095 |
| 2019 |
263.2 |
0.098 |
| 2020 |
260.7 |
0.100 |
| 2021 |
258.3 |
0.101 |
| 2022 |
255.9 |
0.101 |
| 2023 |
253.6 |
0.100 |
| 2024 |
251.1 |
0.099 |
| 2025 |
248.6 |
0.098 |
| 2026 |
246.1 |
0.096 |
| 2027 |
243.4 |
0.095 |
| 2028 |
240.7 |
0.092 |
| 2029 |
237.8 |
0.090 |
| 2030 |
234.7 |
0.088 |
| 2031 |
231.5 |
0.086 |
| 2032 |
228.1 |
0.084 |
| 2033 |
224.6 |
0.081 |
| 2034 |
220.8 |
0.079 |
| 2035 |
216.9 |
0.078 |
| 2036 |
212.8 |
0.076 |
| 2037 |
208.5 |
0.075 |
| 2038 |
204.1 |
0.074 |
| 2039 |
199.6 |
0.073 |
| 2040 |
195.0 |
0.073 |
| 2041 |
190.4 |
0.072 |
| 2042 |
185.8 |
0.073 |
| 2043 |
181.2 |
0.073 |
| 2044 |
176.8 |
0.074 |
| 2045 |
172.5 |
0.076 |
| 2046 |
168.3 |
0.077 |
| 2047 |
164.4 |
0.079 |
| 2048 |
160.6 |
0.081 |
| 2049 |
157.1 |
0.084 |
| 2050 |
153.7 |
0.086 |
|
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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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