00416+2438 WRH 28 (NSV258)
00h 41m 35.98s +24° 37' 44.6" P.A. 302.00 sep 0.1 mag 6.06, Sp A7m dist. 126.74 pc (413.43 l.y.)
Coord 2000 |
00416+2438 |
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Discov num |
WRH 28 |
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Comp |
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Coord arcsec 2000 |
00 41 35.98 +24 37 44.6 |
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Date first |
1980 |
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Date last |
2005 |
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Obs |
8 |
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Pa first |
179 |
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Pa last |
302.1 |
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P.A. Now (θ) |
302.1° |
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Sep first |
0.2 |
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Sep last |
0.066 |
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Sep. Now (ρ) |
0.066" |
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Mag pri |
6.06 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
A7m (white) |
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Pri motion ra |
+107 |
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Sec motion ra |
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Pri motion dec |
-016 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
NSV258 |
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Constellation |
Andromeda |
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SAO |
74200 |
|
HIP |
3269 |
|
Tycho2 |
1738-01977-1 |
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Gaia DR2 |
2806529032199025536 |
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HD |
3883 |
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HR |
178 |
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GC |
822 |
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BD |
BD+23 94 |
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FK5 |
2044 |
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Distance |
126.74 |
|
Distance ly |
413.43 |
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ORBITAL ELEMENTS
Period (P) | 21.26y | ± 0.94 |
Periastron (T) | 1993.02y | ± 0.56 |
Semi-major axis (a) | 0.126a | ± 0.006 |
Eccentricity (e) | 0.5 | ± 0.04 |
Inclination (i) | 33.4° | ± 3.6 |
Longitude of periastron (ω) | 230.5° | ± 8 |
Node (Ω) | 145.7° | ± 6.7 |
Notes | n | |
Reference | Ole2005c | |
Equinox | 2000 | |
Last observation | 1988 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
167.2 |
0.168 |
2001 |
173.9 |
0.172 |
2002 |
180.3 |
0.174 |
2003 |
186.8 |
0.173 |
2004 |
193.4 |
0.170 |
2005 |
200.4 |
0.164 |
2006 |
207.8 |
0.157 |
2007 |
216.1 |
0.149 |
2008 |
225.5 |
0.139 |
2009 |
236.5 |
0.128 |
2010 |
249.6 |
0.116 |
2011 |
265.8 |
0.104 |
2012 |
286.3 |
0.091 |
2013 |
313.8 |
0.077 |
2014 |
355.3 |
0.061 |
2015 |
56.3 |
0.057 |
2016 |
101.2 |
0.079 |
2017 |
124.5 |
0.105 |
2018 |
138.9 |
0.127 |
2019 |
149.4 |
0.145 |
2020 |
157.9 |
0.157 |
2021 |
165.3 |
0.166 |
2022 |
172.2 |
0.171 |
2023 |
178.7 |
0.174 |
2024 |
185.1 |
0.173 |
2025 |
191.7 |
0.171 |
2026 |
198.5 |
0.166 |
2027 |
205.8 |
0.159 |
2028 |
213.9 |
0.151 |
2029 |
223.0 |
0.141 |
2030 |
233.5 |
0.131 |
2031 |
246.0 |
0.119 |
2032 |
261.2 |
0.107 |
2033 |
280.4 |
0.095 |
2034 |
305.7 |
0.081 |
2035 |
342.5 |
0.065 |
2036 |
40.1 |
0.055 |
2037 |
92.3 |
0.072 |
2038 |
119.7 |
0.099 |
2039 |
135.7 |
0.122 |
2040 |
146.9 |
0.141 |
2041 |
155.8 |
0.154 |
2042 |
163.5 |
0.164 |
2043 |
170.4 |
0.170 |
2044 |
177.0 |
0.173 |
2045 |
183.4 |
0.174 |
2046 |
189.9 |
0.172 |
2047 |
196.7 |
0.167 |
2048 |
203.9 |
0.161 |
2049 |
211.7 |
0.153 |
2050 |
220.5 |
0.144 |
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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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