04182+2248 STF 520 (HD 27160)
04h 18m 14.55s +22° 48' 24.6" P.A. 82.00 sep 0.6 mag 8.26,8.45 Sp F5 dist. 153.37 pc (500.29 l.y.)
| Coord 2000 |
04182+2248 |
|
Discov num |
STF 520 |
|
Comp |
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Coord arcsec 2000 |
04 18 14.55 +22 48 24.6 |
|
| Date first |
1832 |
|
Date last |
2019 |
|
Obs |
128 |
|
| Pa first |
104 |
|
Pa last |
81.9 |
|
P.A. Now (θ) |
83.9° |
|
| Sep first |
0.8 |
|
Sep last |
0.643 |
|
Sep. Now (ρ) |
0.703" |
|
| Mag pri |
8.26 |
|
Mag sec |
8.45 |
|
delta mag (ΔM) |
0.19 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
-027 |
|
Sec motion dec |
-027 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 27160 |
|
Constellation |
Taurus |
|
SAO |
76539 |
|
HIP |
20071 |
|
| Tycho2 |
1815-01355-1 |
|
Gaia DR2 |
148729872737918080 |
|
HD |
27160 |
|
GC |
5188 |
|
| ADS |
3114 |
|
BD |
BD+22 670 |
|
Distance |
153.37 |
|
Distance ly |
500.29 |
|
ORBITAL ELEMENTS
| Period (P) | 237y | |
Periastron (T) | 1972.44y | |
Semi-major axis (a) | 0.52a | |
| Eccentricity (e) | 0.859 | |
Inclination (i) | 21° | |
Longitude of periastron (ω) | 136.2° | |
| Node (Ω) | 144.3° | |
Notes | n | |
Reference | Msn2021c | |
| Equinox | | |
Last observation | 2019 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
71.3 |
0.496 |
| 2001 |
72.1 |
0.507 |
| 2002 |
72.8 |
0.518 |
| 2003 |
73.6 |
0.529 |
| 2004 |
74.3 |
0.539 |
| 2005 |
74.9 |
0.549 |
| 2006 |
75.6 |
0.559 |
| 2007 |
76.2 |
0.569 |
| 2008 |
76.8 |
0.579 |
| 2009 |
77.3 |
0.588 |
| 2010 |
77.9 |
0.597 |
| 2011 |
78.4 |
0.606 |
| 2012 |
79.0 |
0.615 |
| 2013 |
79.5 |
0.624 |
| 2014 |
80.0 |
0.632 |
| 2015 |
80.5 |
0.641 |
| 2016 |
80.9 |
0.649 |
| 2017 |
81.4 |
0.657 |
| 2018 |
81.8 |
0.665 |
| 2019 |
82.3 |
0.673 |
| 2020 |
82.7 |
0.681 |
| 2021 |
83.1 |
0.688 |
| 2022 |
83.5 |
0.695 |
| 2023 |
83.9 |
0.703 |
| 2024 |
84.3 |
0.710 |
| 2025 |
84.7 |
0.717 |
| 2026 |
85.1 |
0.723 |
| 2027 |
85.5 |
0.730 |
| 2028 |
85.8 |
0.737 |
| 2029 |
86.2 |
0.743 |
| 2030 |
86.6 |
0.749 |
|
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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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