00118+2825 BU  255

 
 
00H 11M 50.13S +28 25' 24.0" P.A. 65.6 SEP 0.44 MAG 7.88,8.97 SP F5 DIST. 80.52 PC (262.66 L.Y.)
 
 
Coord 2000
00118+2825
Discov num
BU  255
Comp
Coord arcsec 2000
00 11 50.13 +28 25 24.0
Date first
1875
Date last
2008
Obs
73
Pa first
99
Pa last
69
P.A. Now (θ)
65.6°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.44"
Mag pri
7.88
Mag sec
8.97
delta mag (ΔM)
1.09
Spectral class
F5 (yellow-white)
Pri motion ra
-096
Sec motion ra
-096
Pri motion dec
+036
Sec motion dec
+036
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
73801
HIP
956
Tycho2
1736-01574-1
HD
744
ADS
147
BD
BD+27 12
Distance
80.52
Distance ly
262.66
last precise pa
69
last precise sep
0.47
 
 
ORBITAL ELEMENTS
 
 
Period (P)245y Periastron (T)2067.2y Semi-major axis (a)0.661a
Eccentricity (e)0.96 Inclination (i)116° Longitude of periastron (ω)265.4°
Node (Ω)166.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.493 71.7
2001 0.490 71.4
2002 0.487 71.1
2003 0.484 70.8
2004 0.482 70.4
2005 0.479 70.1
2006 0.476 69.7
2007 0.473 69.4
2008 0.469 69.0
2009 0.466 68.7
2010 0.463 68.3
2011 0.460 67.9
2012 0.456 67.5
2013 0.453 67.2
2014 0.450 66.8
2015 0.446 66.4
2016 0.442 66.0
2017 0.439 65.6
2018 0.435 65.2
2019 0.431 64.7
2020 0.427 64.3
2021 0.423 63.9
2022 0.419 63.4
2023 0.415 63.0
2024 0.411 62.5
2025 0.407 62.1
2026 0.403 61.6
2027 0.398 61.1
2028 0.394 60.6
2029 0.389 60.1
2030 0.385 59.5

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