11136+5525 A 1353 (HD 97455)
11h 13m 34.66s +55° 24' 57.0" P.A. 211.00 sep 0.6 mag 7.73,9.16 Sp F5V dist. 91.83 pc (299.55 l.y.)
Coord 2000 |
11136+5525 |
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Discov num |
A 1353 |
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Comp |
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Coord arcsec 2000 |
11 13 34.66 +55 24 57.0 |
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Date first |
1906 |
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Date last |
2017 |
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Obs |
70 |
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Pa first |
200 |
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Pa last |
210.9 |
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P.A. Now (θ) |
205.1° |
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Sep first |
0.5 |
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Sep last |
0.6 |
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Sep. Now (ρ) |
0.541" |
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Mag pri |
7.73 |
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Mag sec |
9.16 |
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delta mag (ΔM) |
1.43 |
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Spectral class |
F5V (yellow-white) |
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Pri motion ra |
-037 |
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Sec motion ra |
-037 |
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Pri motion dec |
+007 |
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Sec motion dec |
+007 |
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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 97455 |
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Constellation |
Ursa Major |
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SAO |
27957 |
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HIP |
54835 |
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Tycho2 |
3827-00526-1 |
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Gaia DR2 |
843790408843852928 |
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HD |
97455 |
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ADS |
8092 |
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BD |
BD+56 1508 |
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Distance |
91.83 |
|
Distance ly |
299.55 |
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ORBITAL ELEMENTS
Period (P) | 127.25y | |
Periastron (T) | 1962y | |
Semi-major axis (a) | 0.39a | |
Eccentricity (e) | 0.644 | |
Inclination (i) | 117.6° | |
Longitude of periastron (ω) | 39.2° | |
Node (Ω) | 44.4° | |
Notes | n | |
Reference | Doc2015f | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
216.4 |
0.546 |
2001 |
215.9 |
0.549 |
2002 |
215.4 |
0.552 |
2003 |
214.9 |
0.555 |
2004 |
214.4 |
0.557 |
2005 |
213.9 |
0.559 |
2006 |
213.4 |
0.561 |
2007 |
212.9 |
0.562 |
2008 |
212.5 |
0.563 |
2009 |
212.0 |
0.564 |
2010 |
211.5 |
0.564 |
2011 |
211.0 |
0.564 |
2012 |
210.5 |
0.564 |
2013 |
210.1 |
0.563 |
2014 |
209.6 |
0.562 |
2015 |
209.1 |
0.561 |
2016 |
208.6 |
0.559 |
2017 |
208.1 |
0.558 |
2018 |
207.6 |
0.556 |
2019 |
207.1 |
0.553 |
2020 |
206.6 |
0.551 |
2021 |
206.1 |
0.548 |
2022 |
205.6 |
0.545 |
2023 |
205.1 |
0.541 |
2024 |
204.6 |
0.538 |
2025 |
204.0 |
0.534 |
2026 |
203.5 |
0.530 |
2027 |
202.9 |
0.525 |
2028 |
202.4 |
0.521 |
2029 |
201.8 |
0.516 |
2030 |
201.2 |
0.511 |
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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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