01006+4719 MAD 1 (HD 5842)
01h 00m 35.58s +47° 19' 14.6" sep 0.9 mag 7.66,9.05 Sp A2
| Coord 2000 |
01006+4719 |
|
Discov num |
MAD 1 |
|
Comp |
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Coord arcsec 2000 |
01 00 35.58 +47 19 14.6 |
|
| Date first |
1845 |
|
Date last |
2020 |
|
Obs |
57 |
|
| Pa first |
45 |
|
Pa last |
0.3 |
|
P.A. Now (θ) |
0.3° |
|
| Sep first |
1.0 |
|
Sep last |
0.88 |
|
Sep. Now (ρ) |
0.88" |
|
| Mag pri |
7.66 |
|
Mag sec |
9.05 |
|
delta mag (ΔM) |
1.39 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-009 |
|
Sec motion dec |
-009 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 5842 |
|
Constellation |
Andromeda |
|
SAO |
36840 |
|
Tycho2 |
3267-00263-1 |
|
| Gaia DR2 |
402003686163964672 |
|
HD |
5842 |
|
GC |
1200 |
|
ADS |
829 |
|
ORBITAL ELEMENTS
| Period (P) | 925y | ± 83 |
Periastron (T) | 2127.14y | ± 3.32 |
Semi-major axis (a) | 0.93a | ± 0.051 |
| Eccentricity (e) | 0.389 | ± 0.024 |
Inclination (i) | 136.4° | ± 1.8 |
Longitude of periastron (ω) | 94.2° | ± 6.1 |
| Node (Ω) | 5.2° | ± 3.2 |
Notes | | |
Reference | Lin2012a | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
4.8 |
0.809 |
| 2001 |
4.4 |
0.806 |
| 2002 |
4.1 |
0.804 |
| 2003 |
3.7 |
0.801 |
| 2004 |
3.4 |
0.798 |
| 2005 |
3.0 |
0.795 |
| 2006 |
2.7 |
0.792 |
| 2007 |
2.3 |
0.790 |
| 2008 |
2.0 |
0.787 |
| 2009 |
1.6 |
0.784 |
| 2010 |
1.2 |
0.781 |
| 2011 |
0.9 |
0.778 |
| 2012 |
0.5 |
0.775 |
| 2013 |
0.1 |
0.772 |
| 2014 |
359.7 |
0.769 |
| 2015 |
359.4 |
0.766 |
| 2016 |
359.0 |
0.762 |
| 2017 |
358.6 |
0.759 |
| 2018 |
358.2 |
0.756 |
| 2019 |
357.8 |
0.753 |
| 2020 |
357.4 |
0.750 |
| 2021 |
357.0 |
0.746 |
| 2022 |
356.6 |
0.743 |
| 2023 |
356.2 |
0.740 |
| 2024 |
355.8 |
0.736 |
| 2025 |
355.4 |
0.733 |
| 2026 |
354.9 |
0.730 |
| 2027 |
354.5 |
0.726 |
| 2028 |
354.1 |
0.723 |
| 2029 |
353.7 |
0.719 |
| 2030 |
353.2 |
0.716 |
| 2031 |
352.8 |
0.712 |
| 2032 |
352.3 |
0.709 |
| 2033 |
351.9 |
0.705 |
| 2034 |
351.4 |
0.701 |
| 2035 |
351.0 |
0.698 |
| 2036 |
350.5 |
0.694 |
| 2037 |
350.0 |
0.690 |
| 2038 |
349.6 |
0.687 |
| 2039 |
349.1 |
0.683 |
| 2040 |
348.6 |
0.679 |
| 2041 |
348.1 |
0.675 |
| 2042 |
347.6 |
0.672 |
| 2043 |
347.1 |
0.668 |
| 2044 |
346.6 |
0.664 |
| 2045 |
346.1 |
0.660 |
| 2046 |
345.6 |
0.656 |
| 2047 |
345.1 |
0.652 |
| 2048 |
344.5 |
0.648 |
| 2049 |
344.0 |
0.644 |
| 2050 |
343.4 |
0.640 |
|
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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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