01418+4237 MCY 2
01h 41m 47.14s +42° 36' 48.1" P.A. 27.00 sep 0.4 mag 5.00,12.80 Sp G1.5V+MV dist. 12.74 pc (41.56 l.y.)
| Coord 2000 |
01418+4237 |
|
Discov num |
MCY 2 |
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Comp |
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Coord arcsec 2000 |
01 41 47.14 +42 36 48.1 |
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| Date first |
1982 |
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Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
35 |
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Pa last |
26.7 |
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P.A. Now (θ) |
26.7° |
|
| Sep first |
0.7 |
|
Sep last |
0.41 |
|
Sep. Now (ρ) |
0.41" |
|
| Mag pri |
5.00 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
7.8 |
|
Spectral class |
G1.5V+MV (yellow/red) |
|
| Pri motion ra |
+792 |
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Sec motion ra |
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| Pri motion dec |
-181 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Andromeda |
|
SAO |
37434 |
|
HIP |
7918 |
|
Tycho2 |
2823-02455-1 |
|
| HD |
10307 |
|
HR |
483 |
|
GC |
2050 |
|
GL |
Gl 67 |
|
| BD |
BD+41 328 |
|
Distance |
12.74 |
|
Distance ly |
41.56 |
|
ORBITAL ELEMENTS
| Period (P) | 18.12y | |
Periastron (T) | 1993.63y | |
Semi-major axis (a) | 0.631a | |
| Eccentricity (e) | 0.434 | |
Inclination (i) | 98.8° | |
Longitude of periastron (ω) | 144.3° | |
| Node (Ω) | 205° | |
Notes | n | |
Reference | Msn2017a | |
| Equinox | 2000 | |
Last observation | 2002 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
219.9 |
0.436 |
| 2001 |
215.6 |
0.569 |
| 2002 |
212.8 |
0.679 |
| 2003 |
210.7 |
0.762 |
| 2004 |
208.9 |
0.815 |
| 2005 |
207.3 |
0.833 |
| 2006 |
205.7 |
0.813 |
| 2007 |
204.0 |
0.749 |
| 2008 |
201.7 |
0.632 |
| 2009 |
198.0 |
0.454 |
| 2010 |
187.0 |
0.213 |
| 2011 |
55.7 |
0.111 |
| 2012 |
28.5 |
0.335 |
| 2013 |
20.7 |
0.383 |
| 2014 |
11.2 |
0.287 |
| 2015 |
345.4 |
0.148 |
| 2016 |
263.8 |
0.127 |
| 2017 |
230.4 |
0.268 |
| 2018 |
220.7 |
0.418 |
| 2019 |
216.0 |
0.554 |
| 2020 |
213.1 |
0.667 |
| 2021 |
210.9 |
0.754 |
| 2022 |
209.1 |
0.810 |
| 2023 |
207.5 |
0.833 |
| 2024 |
205.9 |
0.818 |
| 2025 |
204.2 |
0.759 |
| 2026 |
202.0 |
0.649 |
| 2027 |
198.6 |
0.479 |
| 2028 |
189.5 |
0.244 |
| 2029 |
69.8 |
0.084 |
| 2030 |
29.7 |
0.316 |
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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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