13081+2657 STT 260 (HD 114109)
13h 08m 03.14s +26° 56' 48.7" P.A. 227.00 sep 0.3 mag 8.98,9.50 Sp F9V dist. 102.35 pc (333.87 l.y.)
| Coord 2000 |
13081+2657 |
|
Discov num |
STT 260 |
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Comp |
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Coord arcsec 2000 |
13 08 03.14 +26 56 48.7 |
|
| Date first |
1843 |
|
Date last |
2019 |
|
Obs |
109 |
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| Pa first |
120 |
|
Pa last |
226.8 |
|
P.A. Now (θ) |
83.3° |
|
| Sep first |
0.8 |
|
Sep last |
0.33 |
|
Sep. Now (ρ) |
0.407" |
|
| Mag pri |
8.98 |
|
Mag sec |
9.50 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
F9V (yellow-white) |
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| Pri motion ra |
-023 |
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Sec motion ra |
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| Pri motion dec |
+034 |
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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 114109 |
|
Constellation |
Coma Berenices |
|
SAO |
82667 |
|
HIP |
64092 |
|
| Tycho2 |
1996-01541-1 |
|
HD |
114109 |
|
ADS |
8791 |
|
BD |
BD+27 2219 |
|
| Distance |
102.35 |
|
Distance ly |
333.87 |
|
ORBITAL ELEMENTS
| Period (P) | 233.79y | |
Periastron (T) | 1994.72y | |
Semi-major axis (a) | 0.422a | |
| Eccentricity (e) | 0.846 | |
Inclination (i) | 25.8° | |
Longitude of periastron (ω) | 265.1° | |
| Node (Ω) | 32.3° | |
Notes | n | |
Reference | Zir2008 | |
| Equinox | 2000 | |
Last observation | 1997 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
36.8 |
0.140 |
| 2001 |
42.8 |
0.157 |
| 2002 |
47.6 |
0.173 |
| 2003 |
51.6 |
0.189 |
| 2004 |
55.0 |
0.204 |
| 2005 |
58.0 |
0.218 |
| 2006 |
60.6 |
0.231 |
| 2007 |
62.9 |
0.244 |
| 2008 |
65.0 |
0.257 |
| 2009 |
66.9 |
0.269 |
| 2010 |
68.7 |
0.281 |
| 2011 |
70.3 |
0.292 |
| 2012 |
71.7 |
0.303 |
| 2013 |
73.1 |
0.314 |
| 2014 |
74.4 |
0.324 |
| 2015 |
75.6 |
0.335 |
| 2016 |
76.8 |
0.344 |
| 2017 |
77.9 |
0.354 |
| 2018 |
78.9 |
0.363 |
| 2019 |
79.8 |
0.372 |
| 2020 |
80.8 |
0.381 |
| 2021 |
81.7 |
0.390 |
| 2022 |
82.5 |
0.398 |
| 2023 |
83.3 |
0.407 |
| 2024 |
84.1 |
0.415 |
| 2025 |
84.9 |
0.423 |
| 2026 |
85.6 |
0.430 |
| 2027 |
86.3 |
0.438 |
| 2028 |
86.9 |
0.445 |
| 2029 |
87.6 |
0.452 |
| 2030 |
88.2 |
0.459 |
|
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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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