01418+4237 MCY   2

 
 
01H 41M 47.14S +42 36' 48.1" P.A. 19.8 SEP 0.26 MAG 4.95,11.00 SP G1.5V DIST. 12.74 PC (41.56 L.Y.)
 
 
Coord 2000
01418+4237
Discov num
MCY   2
Comp
Coord arcsec 2000
01 41 47.14 +42 36 48.1
Date first
1982
Date last
2002
Obs
7
Pa first
35
Pa last
212
P.A. Now (θ)
19.8°
Sep first
0.6
Sep last
0.8
Sep. Now (ρ)
0.26"
Mag pri
4.95
Mag sec
11.00
delta mag (ΔM)
6.05
Spectral class
G1.5V (yellow)
Pri motion ra
+792
Sec motion ra
Pri motion dec
-181
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
37434
HIP
7918
Tycho2
2823-02455-1
HD
10307
HR
483
GL
Gl 67
BD
BD+41 328
Distance
12.74
Distance ly
41.56
last precise pa
212
last precise sep
0.75
 
 
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° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2002
label rho theta
2000 0.436 219.9
2001 0.569 215.6
2002 0.679 212.8
2003 0.762 210.7
2004 0.815 208.9
2005 0.833 207.3
2006 0.813 205.7
2007 0.749 204.0
2008 0.632 201.7
2009 0.454 198.0
2010 0.213 187.0
2011 0.111 55.7
2012 0.335 28.5
2013 0.383 20.7
2014 0.287 11.2
2015 0.148 345.4
2016 0.127 263.8
2017 0.268 230.4
2018 0.418 220.7
2019 0.554 216.0
2020 0.667 213.1
2021 0.754 210.9
2022 0.810 209.1
2023 0.833 207.5
2024 0.818 205.9
2025 0.759 204.2
2026 0.649 202.0
2027 0.479 198.6
2028 0.244 189.5
2029 0.084 69.8
2030 0.316 29.7

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic