00182+7257 A   803

 
 
00H 18M 14.70S +72 56' 48.4" P.A. 316.6 SEP 0.28 MAG 8.10,8.76 SP A6III DIST. 179.53 PC (585.63 L.Y.)
 
 
Coord 2000
00182+7257
Discov num
A   803
Comp
Coord arcsec 2000
00 18 14.70 +72 56 48.4
Date first
1904
Date last
2007
Obs
32
Pa first
355
Pa last
308
P.A. Now (θ)
316.6°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.28"
Mag pri
8.10
Mag sec
8.76
delta mag (ΔM)
0.66
Spectral class
A6III (white)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cepheus
SAO
4079
HIP
1461
Tycho2
4302-00695-1
HD
1360
ADS
243
BD
BD+72 15
Distance
179.53
Distance ly
585.63
last precise pa
307.9
last precise sep
0.262
 
 
ORBITAL ELEMENTS
 
 
Period (P)247.63y± 5.08 Periastron (T)2053.72y± 3.7 Semi-major axis (a)0.367a± 0.026
Eccentricity (e)0.392± 0.035 Inclination (i)68.6°± 1.3 Longitude of periastron (ω)243°± 5.3
Node (Ω)151.2°± 1.1 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1998
label rho theta
2000 0.236 299.8
2001 0.239 300.9
2002 0.242 302.1
2003 0.245 303.2
2004 0.248 304.3
2005 0.251 305.3
2006 0.254 306.4
2007 0.256 307.4
2008 0.259 308.4
2009 0.261 309.3
2010 0.264 310.3
2011 0.266 311.2
2012 0.268 312.1
2013 0.270 313.1
2014 0.272 313.9
2015 0.274 314.8
2016 0.276 315.7
2017 0.277 316.6
2018 0.279 317.4
2019 0.280 318.2
2020 0.280 319.1
2021 0.281 319.9
2022 0.282 320.8
2023 0.282 321.6
2024 0.282 322.4
2025 0.281 323.2
2026 0.281 324.1
2027 0.280 324.9
2028 0.279 325.8
2029 0.277 326.6
2030 0.275 327.5

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