13048+7302 BU 799 AB
13h 04m 49.78s +73° 01' 29.8" P.A. 265.00 sep 1.4 mag 6.60,8.45 Sp A7IV dist. 120.19 pc (392.06 l.y.)
| Coord 2000 |
13048+7302 |
|
Discov num |
BU 799 |
|
Comp |
AB |
|
Coord arcsec 2000 |
13 04 49.78 +73 01 29.8 |
|
| Date first |
1881 |
|
Date last |
2017 |
|
Obs |
56 |
|
| Pa first |
239 |
|
Pa last |
265.1 |
|
P.A. Now (θ) |
265.1° |
|
| Sep first |
0.6 |
|
Sep last |
1.39 |
|
Sep. Now (ρ) |
1.39" |
|
| Mag pri |
6.60 |
|
Mag sec |
8.45 |
|
delta mag (ΔM) |
1.85 |
|
Spectral class |
A7IV (white) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
+010 |
|
Sec motion dec |
+013 |
|
| Notes |
O
(Orbital solution) |
|
rPM=0.168 (< 0.3, Physical double)
This double is physical.
13048+7302 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
7741 |
13 04 50 +73 01 30 |
BU 799 AB |
2017 |
56 |
265 |
1.4 |
6.60 |
8.45 |
1.85 |
Y |
<=== |
| Show |
HD 113889 |
7741 |
13 04 50 +73 01 30 |
BU 799 AB,C |
2015 |
8 |
17 |
90.8 |
6.50 |
11.07 |
4.57 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Minor |
|
SAO |
7741 |
|
HIP |
63822 |
|
Tycho2 |
4407-01790-1 |
|
| Gaia DR2 |
1688235340639216768 |
|
HD |
113889 |
|
HR |
4950 |
|
GC |
17748 |
|
| ADS |
8772 |
|
BD |
BD+73 583 |
|
Distance |
120.19 |
|
Distance ly |
392.06 |
|
ORBITAL ELEMENTS
| Period (P) | 1658.8378y | ± 661.1352 |
Periastron (T) | 2118.3246y | ± 289.1858 |
Semi-major axis (a) | 4.64697a | ± 2.93666 |
| Eccentricity (e) | 0.83747 | ± 0.12896 |
Inclination (i) | 85.899° | ± 10.897 |
Longitude of periastron (ω) | 247.108° | ± 40.822 |
| Node (Ω) | 94.885° | ± 12.808 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
265.0 |
1.305 |
| 2001 |
265.1 |
1.310 |
| 2002 |
265.2 |
1.314 |
| 2003 |
265.3 |
1.319 |
| 2004 |
265.4 |
1.323 |
| 2005 |
265.5 |
1.327 |
| 2006 |
265.6 |
1.332 |
| 2007 |
265.7 |
1.336 |
| 2008 |
265.8 |
1.340 |
| 2009 |
265.9 |
1.344 |
| 2010 |
266.0 |
1.348 |
| 2011 |
266.1 |
1.353 |
| 2012 |
266.2 |
1.357 |
| 2013 |
266.3 |
1.361 |
| 2014 |
266.4 |
1.364 |
| 2015 |
266.5 |
1.368 |
| 2016 |
266.6 |
1.372 |
| 2017 |
266.7 |
1.376 |
| 2018 |
266.8 |
1.379 |
| 2019 |
266.9 |
1.383 |
| 2020 |
267.0 |
1.386 |
| 2021 |
267.1 |
1.390 |
| 2022 |
267.2 |
1.393 |
| 2023 |
267.3 |
1.397 |
| 2024 |
267.4 |
1.400 |
| 2025 |
267.5 |
1.403 |
| 2026 |
267.6 |
1.406 |
| 2027 |
267.7 |
1.409 |
| 2028 |
267.8 |
1.412 |
| 2029 |
267.9 |
1.415 |
| 2030 |
268.0 |
1.417 |
|
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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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