07200-0847 BUG 17

 
 
07h 20m 03.20s -08° 46' 51.2" P.A. 64.00 sep 0.4 mag 9.47,14.20 Sp M9.5+T5.5
 
 
Coord 2000 07200-0847 Discov num BUG  17 Comp Coord arcsec 2000 07 20 03.20 -08 46 51.2
Date first 2014 Date last 2019 Obs 16
Pa first 270 Pa last 63.5 P.A. Now (θ) 63.5°
Sep first 0.1 Sep last 0.381 Sep. Now (ρ) 0.381"
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)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Monoceros
 
 
ORBITAL ELEMENTS
 
 
Period (P)8.263735y Periastron (T)2015.718841y Semi-major axis (a)0.3211a
Eccentricity (e)0.248445 Inclination (i)106.5003° Longitude of periastron (ω)182.7214°
Node (Ω)59.415° Notesn ReferenceKpp2020f
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 213.8 0.150
2001 97.4 0.141
2002 70.6 0.314
2003 61.1 0.397
2004 53.1 0.370
2005 39.7 0.238
2006 325.9 0.086
2007 248.9 0.218
2008 225.0 0.193
2009 121.4 0.098
2010 74.3 0.275
2011 63.3 0.386
2012 55.4 0.388
2013 44.6 0.281
2014 3.3 0.108
2015 257.1 0.182
2016 232.4 0.226
2017 163.5 0.085
2018 79.4 0.230
2019 65.6 0.367
2020 57.5 0.398
2021 48.2 0.319
2022 23.6 0.152
2023 270.0 0.138
2024 238.3 0.241
2025 198.7 0.114
2026 87.3 0.181
2027 68.1 0.341
2028 59.5 0.401
2029 51.1 0.350
2030 34.3 0.200


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



 
 


wds07200-0847b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic