00209+3259 AC 1 (HD 1641)
00h 20m 54.10s +32° 58' 40.9" P.A. 291.00 sep 1.9 mag 7.27,8.26 Sp F5V dist. 67.93 pc (221.59 l.y.)
| Coord 2000 |
00209+3259 |
|
Discov num |
AC 1 |
|
Comp |
|
|
Coord arcsec 2000 |
00 20 54.10 +32 58 40.9 |
|
| Date first |
1859 |
|
Date last |
2020 |
|
Obs |
133 |
|
| Pa first |
278 |
|
Pa last |
290.9 |
|
P.A. Now (θ) |
290.9° |
|
| Sep first |
0.4 |
|
Sep last |
1.911 |
|
Sep. Now (ρ) |
1.911" |
|
| Mag pri |
7.27 |
|
Mag sec |
8.26 |
|
delta mag (ΔM) |
0.99 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-065 |
|
Sec motion dec |
-065 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 1641 |
|
Constellation |
Andromeda |
|
SAO |
53827 |
|
HIP |
1669 |
|
| Tycho2 |
2265-01113-1 |
|
Gaia DR2 |
2863371030285831680 |
|
HD |
1641 |
|
GC |
417 |
|
| ADS |
285 |
|
BD |
BD+32 48 |
|
Distance |
67.93 |
|
Distance ly |
221.59 |
|
ORBITAL ELEMENTS
| Period (P) | 525y | |
Periastron (T) | 1820.1y | |
Semi-major axis (a) | 1.234a | |
| Eccentricity (e) | 0.6 | |
Inclination (i) | 84° | |
Longitude of periastron (ω) | 26.8° | |
| Node (Ω) | 107.5° | |
Notes | | |
Reference | Zir2015a | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
288.4 |
1.812 |
| 2001 |
288.4 |
1.815 |
| 2002 |
288.4 |
1.817 |
| 2003 |
288.4 |
1.819 |
| 2004 |
288.5 |
1.821 |
| 2005 |
288.5 |
1.823 |
| 2006 |
288.5 |
1.825 |
| 2007 |
288.5 |
1.827 |
| 2008 |
288.6 |
1.829 |
| 2009 |
288.6 |
1.831 |
| 2010 |
288.6 |
1.832 |
| 2011 |
288.7 |
1.834 |
| 2012 |
288.7 |
1.835 |
| 2013 |
288.7 |
1.837 |
| 2014 |
288.7 |
1.838 |
| 2015 |
288.8 |
1.839 |
| 2016 |
288.8 |
1.840 |
| 2017 |
288.8 |
1.842 |
| 2018 |
288.8 |
1.843 |
| 2019 |
288.9 |
1.844 |
| 2020 |
288.9 |
1.844 |
| 2021 |
288.9 |
1.845 |
| 2022 |
288.9 |
1.846 |
| 2023 |
289.0 |
1.847 |
| 2024 |
289.0 |
1.847 |
| 2025 |
289.0 |
1.848 |
| 2026 |
289.0 |
1.848 |
| 2027 |
289.1 |
1.849 |
| 2028 |
289.1 |
1.849 |
| 2029 |
289.1 |
1.849 |
| 2030 |
289.1 |
1.850 |
|
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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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