00279+2220 FRV 1

 
 
00h 27m 55.93s +22 19' 32.8" P.A. 259.00 sep 0.1 mag 10.15,10.46 Sp M7.5+M8.0
 
 
Coord 2000 00279+2220 Discov num FRV   1 Comp Coord arcsec 2000 00 27 55.93 +22 19 32.8
Date first 2004 Date last 2021 Obs 36
Pa first 13 Pa last 258.5 P.A. Now (θ) 218.1°
Sep first 0.1 Sep last 0.093 Sep. Now (ρ) 0.145"
Mag pri 10.15 Mag sec 10.46 delta mag (ΔM) 0.31 Spectral class M7.5+M8.0 (red/red)
Pri motion ra +400 Sec motion ra
Pri motion dec -177 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 Andromeda
 
 
ORBITAL ELEMENTS
 
 
Period (P)7.698y± 0.014 Periastron (T)57758d (2017.012y)± 15 Semi-major axis (a)145.99m± 0.18
Eccentricity (e)0.0468± 0.0019 Inclination (i)117.36°± 0.11 Longitude of periastron (ω)262.2°± 1.8
Node (Ω)36.64°± 0.1 Notesn ReferenceDup2017
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 216.0 0.145
2001 187.4 0.102
2002 102.0 0.069
2003 50.4 0.130
2004 27.9 0.143
2005 355.4 0.094
2006 276.3 0.078
2007 232.1 0.132
2008 209.2 0.139
2009 170.6 0.081
2010 78.4 0.086
2011 43.0 0.142
2012 20.6 0.132
2013 336.4 0.078
2014 257.4 0.094
2015 224.7 0.142
2016 201.3 0.126
2017 144.5 0.066
2018 63.3 0.107
2019 36.4 0.147
2020 11.8 0.117
2021 310.7 0.070
2022 244.2 0.112
2023 218.1 0.145
2024 191.3 0.108
2025 111.5 0.066
2026 53.1 0.125
2027 29.9 0.145
2028 360.0 0.100
2029 283.7 0.075
2030 234.6 0.128


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



 
 


wds00279%2B2220c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic