12108+3953 STF 1606 (HD 105824)
12h 10m 47.34s +39° 53' 29.5" P.A. 143.00 sep 0.7 mag 7.44,7.93 Sp A8III dist. 120.19 pc (392.06 l.y.)
Coord 2000 |
12108+3953 |
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Discov num |
STF1606 |
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Comp |
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Coord arcsec 2000 |
12 10 47.34 +39 53 29.5 |
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Date first |
1830 |
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Date last |
2019 |
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Obs |
270 |
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Pa first |
349 |
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Pa last |
142.5 |
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P.A. Now (θ) |
142.5° |
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Sep first |
0.8 |
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Sep last |
0.65 |
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Sep. Now (ρ) |
0.65" |
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Mag pri |
7.44 |
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Mag sec |
7.93 |
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delta mag (ΔM) |
0.49 |
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Spectral class |
A8III (white) |
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Pri motion ra |
-029 |
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Sec motion ra |
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Pri motion dec |
-025 |
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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
Name |
HD 105824 |
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Constellation |
Canes Venatici |
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SAO |
44064 |
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HIP |
59366 |
|
Tycho2 |
3017-00781-1 |
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Gaia DR2 |
1535854814419613824 |
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HD |
105824 |
|
GC |
16631 |
|
ADS |
8446 |
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BD |
BD+40 2508 |
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Distance |
120.19 |
|
Distance ly |
392.06 |
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ORBITAL ELEMENTS
Period (P) | 1431y | ± 78 |
Periastron (T) | 1988.32y | ± 0.98 |
Semi-major axis (a) | 2.002a | ± 0.096 |
Eccentricity (e) | 0.7796 | ± 0.0043 |
Inclination (i) | 129.5° | ± 1.8 |
Longitude of periastron (ω) | 256.7° | ± 3 |
Node (Ω) | 122.2° | ± 1.5 |
Notes | n | |
Reference | Msn1999a | |
Equinox | 2000 | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
179.2 |
0.337 |
2001 |
175.8 |
0.349 |
2002 |
172.6 |
0.361 |
2003 |
169.6 |
0.374 |
2004 |
166.9 |
0.388 |
2005 |
164.3 |
0.402 |
2006 |
161.9 |
0.416 |
2007 |
159.6 |
0.430 |
2008 |
157.5 |
0.445 |
2009 |
155.6 |
0.460 |
2010 |
153.7 |
0.474 |
2011 |
152.0 |
0.489 |
2012 |
150.4 |
0.504 |
2013 |
148.8 |
0.519 |
2014 |
147.4 |
0.534 |
2015 |
146.0 |
0.549 |
2016 |
144.7 |
0.563 |
2017 |
143.5 |
0.578 |
2018 |
142.3 |
0.593 |
2019 |
141.2 |
0.607 |
2020 |
140.1 |
0.621 |
2021 |
139.1 |
0.635 |
2022 |
138.1 |
0.649 |
2023 |
137.2 |
0.663 |
2024 |
136.3 |
0.677 |
2025 |
135.5 |
0.691 |
2026 |
134.6 |
0.704 |
2027 |
133.8 |
0.718 |
2028 |
133.1 |
0.731 |
2029 |
132.3 |
0.744 |
2030 |
131.6 |
0.757 |
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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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SUSPECTED ORBITAL ELEMENTS
Identifier | 12108+3953 STF1606 A |
coord_arcsec_2000 | 121047.34+395329.5 |
Period (P) | 75y | |
Periastron (T) | 1880.276y | |
Semi-major axis (a) | 0.078a | |
Eccentricity (e) | 0.37299 | |
Inclination (i) | 83.137° | |
Longitude of periastron (ω) | 191.57° | |
Node (Ω) | 138.419° | |
Notes | n | |
Reference | vdW1974 | |
Equinox | 1900 | |
Last observation | 1973 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
142.2 |
0.091 |
2001 |
142.6 |
0.088 |
2002 |
143.0 |
0.085 |
2003 |
143.5 |
0.082 |
2004 |
144.0 |
0.078 |
2005 |
144.6 |
0.074 |
2006 |
145.2 |
0.070 |
2007 |
145.9 |
0.065 |
2008 |
146.7 |
0.060 |
2009 |
147.7 |
0.056 |
2010 |
148.8 |
0.050 |
2011 |
150.3 |
0.045 |
2012 |
152.1 |
0.039 |
2013 |
154.5 |
0.034 |
2014 |
157.9 |
0.028 |
2015 |
163.1 |
0.022 |
2016 |
171.9 |
0.017 |
2017 |
188.9 |
0.012 |
2018 |
222.5 |
0.009 |
2019 |
262.2 |
0.010 |
2020 |
285.0 |
0.014 |
2021 |
296.3 |
0.020 |
2022 |
302.7 |
0.025 |
2023 |
306.9 |
0.031 |
2024 |
309.8 |
0.036 |
2025 |
312.0 |
0.040 |
2026 |
313.8 |
0.044 |
2027 |
315.3 |
0.047 |
2028 |
316.7 |
0.049 |
2029 |
318.1 |
0.049 |
2030 |
319.4 |
0.048 |
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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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