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 |
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Discov num |
FRV 1 |
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Comp |
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Coord arcsec 2000 |
00 27 55.93 +22 19 32.8 |
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Date first |
2004 |
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Date last |
2021 |
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Obs |
36 |
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Pa first |
13 |
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Pa last |
258.5 |
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P.A. Now (θ) |
218.1° |
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Sep first |
0.1 |
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Sep last |
0.093 |
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Sep. Now (ρ) |
0.145" |
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Mag pri |
10.15 |
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Mag sec |
10.46 |
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delta mag (ΔM) |
0.31 |
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Spectral class |
M7.5+M8.0 (red/red) |
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Pri motion ra |
+400 |
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Sec motion ra |
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Pri motion dec |
-177 |
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Sec motion dec |
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Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
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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
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 |
Notes | n | |
Reference | Dup2017 | |
Equinox | 2000 | |
Last observation | | |
Grade | 2 | (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 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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