09156-1036 MTG   2

 
 
09h 15m 36.40s -10 35' 47.2" P.A. 61.50 sep 0.1 mag 14.30,14.80 Sp M4.5V
 
 
Coord 2000
09156-1036
Discov num
MTG   2
Comp
Coord arcsec 2000
09 15 36.40 -10 35 47.2
Date first
2003
Date last
2020
Obs
17
Pa first
262
Pa last
62
P.A. Now (θ)
61.5°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.15"
Mag pri
14.30
Mag sec
14.80
delta mag (ΔM)
0.5
Spectral class
M4.5V (red)
Pri motion ra
-395
Sec motion ra
Pri motion dec
-193
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
62.1
Precise sep
0.146
Constellation
Hydra
last precise pa
62.1
last precise sep
0.146
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.029728y Periastron (T)2014.149753y Semi-major axis (a)0.1994a
Eccentricity (e)0.473833 Inclination (i)116.4045° Longitude of periastron (ω)272.2223°
Node (Ω)114.1646° Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 0.178 97.3
2001 0.142 55.1
2002 0.144 353.6
2003 0.186 313.3
2004 0.056 240.4
2005 0.178 98.4
2006 0.143 56.7
2007 0.142 355.2
2008 0.186 314.3
2009 0.063 249.8
2010 0.178 99.4
2011 0.144 58.3
2012 0.141 356.9
2013 0.185 315.2
2014 0.071 257.3
2015 0.177 100.5
2016 0.145 59.9
2017 0.140 358.5
2018 0.185 316.2
2019 0.079 263.3
2020 0.176 101.5
2021 0.147 61.5
2022 0.139 0.2
2023 0.184 317.2
2024 0.087 268.2
2025 0.175 102.6
2026 0.148 63.0
2027 0.138 2.0
2028 0.183 318.2
2029 0.095 272.2
2030 0.174 103.7


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



 
 


wds09156-1036d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09156-1036 MTG 2 2005 2 266 0.2 8.80 8.90 K 091536.40-103547.2
09156-1036 MTG 2 2010 3 99 0.2 13.70   091536.40-103547.2
09156-1036 MTG 2 2012 4 176 0.1 13.70   091536.40-103547.2
09156-1036 MTG 2 2015 5 99 0.2 13.70   091536.40-103547.2
09156-1036 MTG 2 2017 10 344 0.2 14.30 14.80 M4.5V NO 091536.40-103547.2
09156-1036 MTG 2 2018 12 308 0.2 14.30 14.80 M4.5V NO 091536.40-103547.2
09156-1036 MTG 2 2019 16 283 0.2 14.30 14.80 M4.5V NO 091536.40-103547.2

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