07200-0847 BUG  17

 
 
07H 20M 02.19S -08 46' 59.5" P.A. 263.2 SEP 0.09 MAG 9.47,14.20 SP M9.5+T5.5
 
 
Coord 2000
07200-0847
Discov num
BUG  17
Comp
Coord arcsec 2000
07 20 02.19 -08 46 59.5
Date first
2014
Date last
2015
Obs
2
Pa first
270
Pa last
257
P.A. Now (θ)
263.2°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.09"
Mag pri
9.47
Mag sec
14.20
delta mag (ΔM)
4.73
Spectral class
M9.5+T5.5 (red/brown dwarf)
Pri motion ra
-036
Sec motion ra
Pri motion dec
-102
Sec motion dec
Notes
N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Monoceros
last precise pa
256.7
last precise sep
0.197
 
 
ORBITAL ELEMENTS
 
 
Period (P)3.1y Periastron (T)2013.75y Semi-major axis (a)0.16a
Eccentricity (e)0.8 Inclination (i)94.9° Longitude of periastron (ω)54°
Node (Ω)82.2° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 0.151 254.3
2001 0.015 139.9
2002 0.187 259.3
2003 0.161 254.9
2004 0.019 207.9
2005 0.178 259.8
2006 0.170 255.5
2007 0.034 232.6
2008 0.165 260.3
2009 0.178 256.0
2010 0.051 241.4
2011 0.147 260.9
2012 0.185 256.5
2013 0.068 245.8
2014 0.122 261.7
2015 0.191 256.9
2016 0.084 248.5
2017 0.085 263.2
2018 0.195 257.3
2019 0.099 250.3
2020 0.024 269.8
2021 0.197 257.7
2022 0.114 251.7
2023 0.043 83.5
2024 0.198 258.1
2025 0.127 252.7
2026 0.043 90.8
2027 0.196 258.5
2028 0.139 253.6
2029 0.029 103.1
2030 0.193 258.9

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