04422+3731 STF 577 (HD 29695)
04h 42m 13.48s +37° 30' 54.1" P.A. 326.00 sep 0.8 mag 8.38,8.45 Sp F8 dist. 57.94 pc (189 l.y.)
| Coord 2000 |
04422+3731 |
|
Discov num |
STF 577 |
|
Comp |
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Coord arcsec 2000 |
04 42 13.48 +37 30 54.1 |
|
| Date first |
1829 |
|
Date last |
2018 |
|
Obs |
198 |
|
| Pa first |
279 |
|
Pa last |
325.7 |
|
P.A. Now (θ) |
325.7° |
|
| Sep first |
1.6 |
|
Sep last |
0.763 |
|
Sep. Now (ρ) |
0.763" |
|
| Mag pri |
8.38 |
|
Mag sec |
8.45 |
|
delta mag (ΔM) |
0.07 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+047 |
|
Sec motion ra |
+047 |
|
| Pri motion dec |
+002 |
|
Sec motion dec |
+002 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 29695 |
|
Constellation |
Perseus |
|
SAO |
57379 |
|
HIP |
21878 |
|
| Tycho2 |
2893-00455-1 |
|
Gaia DR2 |
175511021056842624 |
|
HD |
29695 |
|
GC |
5707 |
|
| ADS |
3390 |
|
BD |
BD+37 957 |
|
Distance |
57.94 |
|
Distance ly |
189 |
|
ORBITAL ELEMENTS
| Period (P) | 564y | ± 119 |
Periastron (T) | 2024.9y | ± 8 |
Semi-major axis (a) | 1.51a | ± 0.22 |
| Eccentricity (e) | 0.4531 | ± 0.0071 |
Inclination (i) | 141.2° | ± 6 |
Longitude of periastron (ω) | 262° | ± 11 |
| Node (Ω) | 209.1° | ± 7.6 |
Notes | n | |
Reference | RAO2015 | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
358.2 |
0.838 |
| 2001 |
356.7 |
0.827 |
| 2002 |
355.2 |
0.817 |
| 2003 |
353.7 |
0.806 |
| 2004 |
352.1 |
0.796 |
| 2005 |
350.5 |
0.786 |
| 2006 |
348.8 |
0.775 |
| 2007 |
347.1 |
0.766 |
| 2008 |
345.4 |
0.756 |
| 2009 |
343.6 |
0.746 |
| 2010 |
341.7 |
0.737 |
| 2011 |
339.9 |
0.728 |
| 2012 |
337.9 |
0.719 |
| 2013 |
335.9 |
0.711 |
| 2014 |
333.9 |
0.703 |
| 2015 |
331.9 |
0.695 |
| 2016 |
329.7 |
0.688 |
| 2017 |
327.6 |
0.682 |
| 2018 |
325.4 |
0.675 |
| 2019 |
323.2 |
0.670 |
| 2020 |
320.9 |
0.664 |
| 2021 |
318.6 |
0.660 |
| 2022 |
316.2 |
0.656 |
| 2023 |
313.9 |
0.652 |
| 2024 |
311.5 |
0.650 |
| 2025 |
309.1 |
0.647 |
| 2026 |
306.7 |
0.646 |
| 2027 |
304.2 |
0.645 |
| 2028 |
301.8 |
0.645 |
| 2029 |
299.4 |
0.645 |
| 2030 |
297.0 |
0.647 |
|
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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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