12244+4305 STT 250 (HD 108005)
12h 24m 24.51s +43° 05' 15.0" P.A. 353.00 sep 0.3 mag 8.27,9.18 Sp F0 dist. 245.7 pc (801.47 l.y.)
| Coord 2000 |
12244+4305 |
|
Discov num |
STT 250 |
|
Comp |
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Coord arcsec 2000 |
12 24 24.51 +43 05 15.0 |
|
| Date first |
1843 |
|
Date last |
2016 |
|
Obs |
72 |
|
| Pa first |
336 |
|
Pa last |
353.2 |
|
P.A. Now (θ) |
353.2° |
|
| Sep first |
0.4 |
|
Sep last |
0.301 |
|
Sep. Now (ρ) |
0.301" |
|
| Mag pri |
8.27 |
|
Mag sec |
9.18 |
|
delta mag (ΔM) |
0.91 |
|
Spectral class |
F0 (yellow-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
+005 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+001 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 108005 |
|
Constellation |
Canes Venatici |
|
SAO |
44161 |
|
HIP |
60522 |
|
| Tycho2 |
3020-00300-1 |
|
Gaia DR2 |
1535156379721932800 |
|
HD |
108005 |
|
GC |
16912 |
|
| ADS |
8540 |
|
BD |
BD+43 2220 |
|
Distance |
245.7 |
|
Distance ly |
801.47 |
|
ORBITAL ELEMENTS
| Period (P) | 1055y | ± 320 |
Periastron (T) | 2059.4y | ± 1 |
Semi-major axis (a) | 0.652a | ± 0.131 |
| Eccentricity (e) | 0.77 | ± 0.01 |
Inclination (i) | 73.6° | ± 1.8 |
Longitude of periastron (ω) | 270.3° | ± 8.2 |
| Node (Ω) | 174.9° | ± 1.5 |
Notes | | |
Reference | PkO2018b | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
348.1 |
0.354 |
| 2001 |
348.3 |
0.352 |
| 2002 |
348.5 |
0.349 |
| 2003 |
348.7 |
0.346 |
| 2004 |
348.9 |
0.344 |
| 2005 |
349.1 |
0.341 |
| 2006 |
349.4 |
0.338 |
| 2007 |
349.6 |
0.335 |
| 2008 |
349.8 |
0.332 |
| 2009 |
350.1 |
0.329 |
| 2010 |
350.3 |
0.326 |
| 2011 |
350.6 |
0.323 |
| 2012 |
350.8 |
0.320 |
| 2013 |
351.1 |
0.316 |
| 2014 |
351.3 |
0.313 |
| 2015 |
351.6 |
0.309 |
| 2016 |
351.9 |
0.306 |
| 2017 |
352.2 |
0.302 |
| 2018 |
352.5 |
0.298 |
| 2019 |
352.7 |
0.294 |
| 2020 |
353.1 |
0.290 |
| 2021 |
353.4 |
0.286 |
| 2022 |
353.7 |
0.282 |
| 2023 |
354.0 |
0.278 |
| 2024 |
354.4 |
0.273 |
| 2025 |
354.7 |
0.269 |
| 2026 |
355.1 |
0.264 |
| 2027 |
355.5 |
0.259 |
| 2028 |
355.9 |
0.254 |
| 2029 |
356.3 |
0.249 |
| 2030 |
356.7 |
0.244 |
|
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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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