00121+5337 BU 1026 AB (HD 761)
00h 12m 08.05s +53° 37' 26.1" P.A. 325.00 sep 0.4 mag 7.25,8.46 Sp A7Vn+F2V dist. 119.9 pc (391.11 l.y.)
Coord 2000 |
00121+5337 |
|
Discov num |
BU 1026 |
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Comp |
AB |
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Coord arcsec 2000 |
00 12 08.05 +53 37 26.1 |
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Date first |
1888 |
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Date last |
2018 |
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Obs |
132 |
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Pa first |
330 |
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Pa last |
324.7 |
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P.A. Now (θ) |
328.7° |
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Sep first |
0.5 |
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Sep last |
0.35 |
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Sep. Now (ρ) |
0.342" |
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Mag pri |
7.25 |
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Mag sec |
8.46 |
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delta mag (ΔM) |
1.21 |
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Spectral class |
A7Vn+F2V (white/yellow-white) |
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Pri motion ra |
+039 |
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Sec motion ra |
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Pri motion dec |
-012 |
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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.
00121+5337 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 761 |
21202 |
00 12 08 +53 37 26 |
BU 1026 AB |
2018 |
132 |
325 |
0.4 |
7.25 |
8.46 |
1.21 |
Y |
<=== |
Show |
|
21202 |
00 12 08 +53 37 26 |
CHR 1 AC |
2001 |
8 |
298 |
0.3 |
7.25 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 761 |
|
Constellation |
Cassiopeia |
|
SAO |
21202 |
|
HIP |
981 |
|
Tycho2 |
3652-01234-1 |
|
Gaia DR2 |
420017603641437824 |
|
HD |
761 |
|
GC |
208 |
|
ADS |
148 |
|
BD |
BD+52 19 |
|
Distance |
119.9 |
|
Distance ly |
391.11 |
|
ORBITAL ELEMENTS
Period (P) | 66.84y | ± 0.17 |
Periastron (T) | 1986.542y | ± 0.029 |
Semi-major axis (a) | 0.2514a | ± 0.0055 |
Eccentricity (e) | 0.8282 | ± 0.0058 |
Inclination (i) | 42.77° | ± 0.84 |
Longitude of periastron (ω) | 255.2° | ± 1.1 |
Node (Ω) | 254.9° | ± 1.2 |
Notes | n | |
Reference | Hrt1996a | |
Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
299.4 |
0.286 |
2001 |
301.1 |
0.294 |
2002 |
302.7 |
0.301 |
2003 |
304.2 |
0.308 |
2004 |
305.6 |
0.314 |
2005 |
307.0 |
0.319 |
2006 |
308.4 |
0.324 |
2007 |
309.7 |
0.329 |
2008 |
311.0 |
0.333 |
2009 |
312.2 |
0.336 |
2010 |
313.5 |
0.339 |
2011 |
314.7 |
0.342 |
2012 |
315.9 |
0.344 |
2013 |
317.0 |
0.345 |
2014 |
318.2 |
0.347 |
2015 |
319.4 |
0.348 |
2016 |
320.5 |
0.348 |
2017 |
321.7 |
0.348 |
2018 |
322.8 |
0.348 |
2019 |
324.0 |
0.348 |
2020 |
325.1 |
0.347 |
2021 |
326.3 |
0.345 |
2022 |
327.5 |
0.344 |
2023 |
328.7 |
0.342 |
2024 |
329.9 |
0.339 |
2025 |
331.1 |
0.337 |
2026 |
332.4 |
0.334 |
2027 |
333.6 |
0.330 |
2028 |
334.9 |
0.326 |
2029 |
336.3 |
0.322 |
2030 |
337.6 |
0.318 |
2031 |
339.0 |
0.313 |
2032 |
340.5 |
0.308 |
2033 |
342.0 |
0.302 |
2034 |
343.6 |
0.296 |
2035 |
345.2 |
0.290 |
2036 |
346.9 |
0.283 |
2037 |
348.7 |
0.276 |
2038 |
350.6 |
0.268 |
2039 |
352.6 |
0.260 |
2040 |
354.8 |
0.251 |
2041 |
357.1 |
0.242 |
2042 |
359.6 |
0.232 |
2043 |
2.3 |
0.222 |
2044 |
5.3 |
0.211 |
2045 |
8.6 |
0.199 |
2046 |
12.4 |
0.186 |
2047 |
16.7 |
0.173 |
2048 |
21.9 |
0.158 |
2049 |
28.1 |
0.142 |
2050 |
36.0 |
0.124 |
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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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