00287+3718 A  1504AB

 
 
00H 28M 40.87S +37 18' 14.9" P.A. 45.2 SEP 0.6 MAG 8.84,8.92 SP A5 DIST. 240.96 PC (786.01 L.Y.)
 
 
Coord 2000
00287+3718
Discov num
A  1504
Comp
AB
Coord arcsec 2000
00 28 40.87 +37 18 14.9
Date first
1907
Date last
2016
Obs
55
Pa first
358
Pa last
49
P.A. Now (θ)
45.2°
Sep first
0.3
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.84
Mag sec
8.92
delta mag (ΔM)
0.08
Spectral class
A5 (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-006
Sec motion dec
-006
Notes
O (Orbital solution)
This double is physical.
 
 
00287+3718 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 53925 00287+3718 A 1504 AB 1907 2016 55 45 0.6 8.84 8.92 0.08 Y <===
Show 53925 00287+3718 A 1504 AB,C 1907 2012 5 102 7.5 8.13 13.50 5.37
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
53925
HIP
2252
Tycho2
2274-01419-1
HD
2471
ADS
382
BD
BD+36 62
Distance
240.96
Distance ly
786.01
last precise pa
49.3
last precise sep
0.581
 
 
ORBITAL ELEMENTS
 
 
Period (P)977y Periastron (T)2071y Semi-major axis (a)0.843a
Eccentricity (e)0.29 Inclination (i)70.2° Longitude of periastron (ω)17.6°
Node (Ω)51.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.571 41.0
2001 0.573 41.3
2002 0.575 41.5
2003 0.577 41.8
2004 0.578 42.0
2005 0.580 42.3
2006 0.581 42.5
2007 0.583 42.8
2008 0.585 43.0
2009 0.586 43.3
2010 0.587 43.5
2011 0.589 43.8
2012 0.590 44.0
2013 0.591 44.3
2014 0.593 44.5
2015 0.594 44.8
2016 0.595 45.0
2017 0.596 45.2
2018 0.597 45.5
2019 0.598 45.7
2020 0.599 45.9
2021 0.600 46.2
2022 0.601 46.4
2023 0.602 46.7
2024 0.602 46.9
2025 0.603 47.1
2026 0.604 47.4
2027 0.604 47.6
2028 0.605 47.8
2029 0.605 48.1
2030 0.606 48.3

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