03095+4544 HDS 404

 
 
03H 09M 30.81S +45 43' 58.3" P.A. 46.4 SEP 0.13 MAG 10.32,12.50 SP M2+M4 DIST. 15.76 PC (51.41 L.Y.)
 
 
Coord 2000
03095+4544
Discov num
HDS 404
Comp
Coord arcsec 2000
03 09 30.81 +45 43 58.3
Date first
1991
Date last
2011
Obs
17
Pa first
23
Pa last
182
P.A. Now (θ)
46.4°
Sep first
0.4
Sep last
0.2
Sep. Now (ρ)
0.13"
Mag pri
10.32
Mag sec
12.50
delta mag (ΔM)
2.18
Spectral class
M2+M4 (red/red)
Pri motion ra
-429
Sec motion ra
Pri motion dec
-385
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
HIP
14669
Tycho2
3310-00917-1
GL
Gl 125
Distance
15.76
Distance ly
51.41
last precise pa
181.8
last precise sep
0.245
 
 
ORBITAL ELEMENTS
 
 
Period (P)28.31y± 0.07 Periastron (T)2009.16y± 0.07 Semi-major axis (a)0.569a± 0.007
Eccentricity (e)0.138± 0.004 Inclination (i)96.8°± 0.3 Longitude of periastron (ω)165.6°± 1
Node (Ω)13.2°± 0.2 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2003
label rho theta
2000 0.496 8.3
2001 0.409 5.9
2002 0.305 2.1
2003 0.190 353.8
2004 0.082 321.5
2005 0.102 230.7
2006 0.215 208.3
2007 0.323 201.4
2008 0.411 197.8
2009 0.469 195.3
2010 0.492 193.2
2011 0.479 191.2
2012 0.432 188.9
2013 0.356 185.8
2014 0.259 180.6
2015 0.153 168.4
2016 0.070 117.1
2017 0.126 46.4
2018 0.233 29.8
2019 0.338 23.8
2020 0.433 20.5
2021 0.512 18.3
2022 0.575 16.7
2023 0.618 15.3
2024 0.641 14.1
2025 0.643 13.0
2026 0.623 11.8
2027 0.582 10.4
2028 0.520 8.8
2029 0.438 6.7
2030 0.339 3.5

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