04422+0259 A 2424 (HD 29839)
04h 42m 13.71s +02° 59' 24.2" P.A. 228.00 sep 0.1 mag 7.87,8.33 Sp A1V dist. 175.44 pc (572.29 l.y.)
| Coord 2000 |
04422+0259 |
|
Discov num |
A 2424 |
|
Comp |
|
|
Coord arcsec 2000 |
04 42 13.71 +02 59 24.2 |
|
| Date first |
1911 |
|
Date last |
2018 |
|
Obs |
33 |
|
| Pa first |
63 |
|
Pa last |
228 |
|
P.A. Now (θ) |
230.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.137 |
|
Sep. Now (ρ) |
0.15" |
|
| Mag pri |
7.87 |
|
Mag sec |
8.33 |
|
delta mag (ΔM) |
0.46 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
|
|
| Pri motion dec |
-022 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 29839 |
|
Constellation |
Taurus |
|
SAO |
111990 |
|
HIP |
21880 |
|
| Tycho2 |
0087-01424-1 |
|
Gaia DR2 |
3280928648447247872 |
|
HD |
29839 |
|
ADS |
3395 |
|
| BD |
BD+02 751 |
|
Distance |
175.44 |
|
Distance ly |
572.29 |
|
ORBITAL ELEMENTS
| Period (P) | 58.1y | ± 4.8 |
Periastron (T) | 2011.05y | ± 0.63 |
Semi-major axis (a) | 0.1545a | ± 0.0085 |
| Eccentricity (e) | 0.345 | ± 0.026 |
Inclination (i) | 85.3° | ± 0.6 |
Longitude of periastron (ω) | 265.1° | ± 8.3 |
| Node (Ω) | 228.6° | ± 0.8 |
Notes | n | |
Reference | Tok2017b | |
| Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
46.6 |
0.140 |
| 2001 |
47.1 |
0.140 |
| 2002 |
47.7 |
0.139 |
| 2003 |
48.3 |
0.135 |
| 2004 |
49.0 |
0.128 |
| 2005 |
49.7 |
0.119 |
| 2006 |
50.6 |
0.108 |
| 2007 |
51.7 |
0.093 |
| 2008 |
53.4 |
0.076 |
| 2009 |
56.0 |
0.056 |
| 2010 |
61.9 |
0.034 |
| 2011 |
88.6 |
0.013 |
| 2012 |
198.1 |
0.016 |
| 2013 |
216.6 |
0.038 |
| 2014 |
221.6 |
0.060 |
| 2015 |
223.9 |
0.079 |
| 2016 |
225.4 |
0.097 |
| 2017 |
226.5 |
0.111 |
| 2018 |
227.3 |
0.123 |
| 2019 |
228.0 |
0.133 |
| 2020 |
228.6 |
0.140 |
| 2021 |
229.2 |
0.145 |
| 2022 |
229.7 |
0.148 |
| 2023 |
230.2 |
0.150 |
| 2024 |
230.7 |
0.149 |
| 2025 |
231.2 |
0.147 |
| 2026 |
231.8 |
0.144 |
| 2027 |
232.3 |
0.140 |
| 2028 |
232.9 |
0.135 |
| 2029 |
233.6 |
0.128 |
| 2030 |
234.3 |
0.121 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
