00089+2050 BEU   1

 
 
00h 08m 53.91s +20 50' 25.2" P.A. 70.40 sep 0.1 mag 12.70,14.30 Sp M4.5
 
 
Coord 2000
00089+2050
Discov num
BEU   1
Comp
Coord arcsec 2000
00 08 53.91 +20 50 25.2
Date first
2001
Date last
2020
Obs
8
Pa first
170
Pa last
74
P.A. Now (θ)
70.4°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.15"
Mag pri
12.70
Mag sec
14.30
delta mag (ΔM)
1.6
Spectral class
M4.5 (red)
Pri motion ra
-061
Sec motion ra
Pri motion dec
-277
Sec motion dec
Notes
N O R (See Notes, Orbital solution, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
74.2
Precise sep
0.152
Constellation
Pegasus
Gaia DR2
47610195456
last precise pa
74.2
last precise sep
0.152
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.918y± 0.017 Periastron (T)2018.92± 0.17 Semi-major axis (a)0.144a± 0.005
Eccentricity (e)0.105± 0.023 Inclination (i)145.7°± 3.3 Longitude of periastron (ω)240.4°± 17.2
Node (Ω)83.6°± 6.6 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2021
label rho theta
2000 0.137 282.3
2001 0.117 221.2
2002 0.119 137.3
2003 0.151 81.5
2004 0.141 34.7
2005 0.129 335.9
2006 0.137 277.8
2007 0.115 214.9
2008 0.122 131.4
2009 0.152 77.8
2010 0.140 30.4
2011 0.130 330.9
2012 0.137 273.3
2013 0.112 208.3
2014 0.125 125.9
2015 0.152 74.1
2016 0.138 26.0
2017 0.130 325.8
2018 0.136 268.8
2019 0.110 201.4
2020 0.129 120.6
2021 0.152 70.4
2022 0.136 21.5
2023 0.131 320.8
2024 0.136 264.2
2025 0.109 194.4
2026 0.132 115.6
2027 0.152 66.7
2028 0.135 16.8
2029 0.132 315.9
2030 0.134 259.5

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






wds00089%2B2050a.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
00089+2050 BEU 1 2001 1 170 0.1 13.54   M4.5 D 000853.96+205027.4
00089+2050 BEU 1 2012 2 272 0.1 13.54   M4.5 000853.96+205027.4
00089+2050 BEU 1 2014 4 95 0.1 12.70 14.30 M4.5 R 000853.96+205027.4

If you need more information about this double, apply for a data request form to the WDS.