15031+4439 CHR 43 (HD 133484)
15h 03m 06.63s +44° 38' 39.9" P.A. 281.00 sep 0.5 mag 6.80,9.20 Sp F6IV dist. 55.65 pc (181.53 l.y.)
| Coord 2000 |
15031+4439 |
|
Discov num |
CHR 43 |
|
Comp |
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|
Coord arcsec 2000 |
15 03 06.63 +44 38 39.9 |
|
| Date first |
1985 |
|
Date last |
2019 |
|
Obs |
16 |
|
| Pa first |
85 |
|
Pa last |
281.4 |
|
P.A. Now (θ) |
281.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.46 |
|
Sep. Now (ρ) |
0.46" |
|
| Mag pri |
6.80 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
2.4 |
|
Spectral class |
F6IV (yellow-white) |
|
| Pri motion ra |
-093 |
|
Sec motion ra |
|
|
| Pri motion dec |
+024 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 133484 |
|
Constellation |
Bootes |
|
SAO |
45348 |
|
HIP |
73637 |
|
| Tycho2 |
3050-00175-1 |
|
Gaia DR2 |
1586138058138639616 |
|
HD |
133484 |
|
HR |
5612 |
|
| GC |
20258 |
|
BD |
BD+45 2251 |
|
FK5 |
3192 |
|
Distance |
55.65 |
|
| Distance ly |
181.53 |
|
ORBITAL ELEMENTS
| Period (P) | 170.88y | ± 8.91 |
Periastron (T) | 1999.39y | ± 2.81 |
Semi-major axis (a) | 0.626a | ± 0.047 |
| Eccentricity (e) | 0.586 | ± 0.028 |
Inclination (i) | 73.9° | ± 2.8 |
Longitude of periastron (ω) | 347.1° | ± 13.2 |
| Node (Ω) | 222.2° | ± 4.9 |
Notes | | |
Reference | Hrt2009 | |
| Equinox | | |
Last observation | 2007 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
220.3 |
0.258 |
| 2001 |
223.0 |
0.263 |
| 2002 |
225.7 |
0.263 |
| 2003 |
228.4 |
0.259 |
| 2004 |
231.3 |
0.252 |
| 2005 |
234.3 |
0.242 |
| 2006 |
237.6 |
0.230 |
| 2007 |
241.3 |
0.217 |
| 2008 |
245.5 |
0.202 |
| 2009 |
250.5 |
0.187 |
| 2010 |
256.3 |
0.172 |
| 2011 |
263.1 |
0.158 |
| 2012 |
271.2 |
0.146 |
| 2013 |
280.5 |
0.136 |
| 2014 |
291.0 |
0.131 |
| 2015 |
302.1 |
0.129 |
| 2016 |
313.1 |
0.132 |
| 2017 |
323.3 |
0.138 |
| 2018 |
332.4 |
0.149 |
| 2019 |
340.1 |
0.162 |
| 2020 |
346.6 |
0.177 |
| 2021 |
351.9 |
0.194 |
| 2022 |
356.5 |
0.212 |
| 2023 |
0.3 |
0.231 |
| 2024 |
3.5 |
0.250 |
| 2025 |
6.2 |
0.269 |
| 2026 |
8.6 |
0.289 |
| 2027 |
10.7 |
0.308 |
| 2028 |
12.6 |
0.328 |
| 2029 |
14.2 |
0.347 |
| 2030 |
15.6 |
0.366 |
|
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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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