00495+4404 HDS 109

 
 
00H 49M 32.74S +44 03' 33.8" P.A. 122.9 SEP 0.28 MAG 8.02,10.32 SP G0 DIST. 67.7 PC (220.84 L.Y.)
 
 
Coord 2000
00495+4404
Discov num
HDS 109
Comp
Coord arcsec 2000
00 49 32.74 +44 03 33.8
Date first
1991
Date last
2013
Obs
17
Pa first
85
Pa last
136
P.A. Now (θ)
122.9°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.28"
Mag pri
8.02
Mag sec
10.32
delta mag (ΔM)
2.3
Spectral class
G0 (yellow)
Pri motion ra
-070
Sec motion ra
Pri motion dec
-069
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
36695
HIP
3857
Tycho2
2809-01555-1
HD
4712
BD
BD+43 159
Distance
67.7
Distance ly
220.84
last precise pa
136.1
last precise sep
0.191
 
 
ORBITAL ELEMENTS
 
 
Period (P)46.64y Periastron (T)2009.69y Semi-major axis (a)0.253a
Eccentricity (e)0.752 Inclination (i)133.5° Longitude of periastron (ω)227.5°
Node (Ω)131.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.236 62.5
2001 0.220 58.2
2002 0.203 53.2
2003 0.185 47.2
2004 0.167 40.0
2005 0.149 31.0
2006 0.131 19.5
2007 0.114 4.4
2008 0.096 344.0
2009 0.074 313.3
2010 0.047 245.8
2011 0.078 173.9
2012 0.127 151.4
2013 0.168 141.0
2014 0.203 134.4
2015 0.232 129.7
2016 0.258 126.0
2017 0.280 122.9
2018 0.298 120.2
2019 0.315 117.8
2020 0.329 115.6
2021 0.341 113.6
2022 0.351 111.8
2023 0.360 110.0
2024 0.367 108.3
2025 0.372 106.7
2026 0.377 105.1
2027 0.380 103.5
2028 0.382 102.0
2029 0.382 100.4
2030 0.382 98.9

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