01512+2439 HO  311

 
 
01H 51M 13.34S +24 39' 08.0" P.A. 178.2 SEP 0.4 MAG 8.22,7.82 SP F1V DIST. 131.06 PC (427.52 L.Y.)
 
 
Coord 2000
01512+2439
Discov num
HO  311
Comp
Coord arcsec 2000
01 51 13.34 +24 39 08.0
Date first
1890
Date last
2014
Obs
104
Pa first
174
Pa last
177
P.A. Now (θ)
178.2°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
8.22
Mag sec
7.82
delta mag (ΔM)
0.4
Spectral class
F1V (yellow-white)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-026
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Aries
SAO
74984
HIP
8622
Tycho2
1756-00668-1
HD
11284
ADS
1473
BD
BD+23 246
Distance
131.06
Distance ly
427.52
last precise pa
176.6
last precise sep
0.397
 
 
ORBITAL ELEMENTS
 
 
Period (P)119.3y± 6.2 Periastron (T)1982.72y± 0.4 Semi-major axis (a)0.298a± 0.0062
Eccentricity (e)0.888± 0.016 Inclination (i)52.8°± 1.7 Longitude of periastron (ω)142°± 3.9
Node (Ω)212.8°± 3.9 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.255 166.1
2001 0.265 167.2
2002 0.275 168.2
2003 0.285 169.2
2004 0.295 170.0
2005 0.304 170.9
2006 0.313 171.7
2007 0.322 172.4
2008 0.330 173.1
2009 0.338 173.8
2010 0.346 174.4
2011 0.354 175.0
2012 0.361 175.6
2013 0.369 176.2
2014 0.376 176.7
2015 0.382 177.2
2016 0.389 177.7
2017 0.395 178.2
2018 0.401 178.7
2019 0.407 179.1
2020 0.413 179.6
2021 0.419 180.0
2022 0.424 180.4
2023 0.429 180.8
2024 0.434 181.2
2025 0.439 181.6
2026 0.443 182.0
2027 0.448 182.4
2028 0.452 182.7
2029 0.456 183.1
2030 0.459 183.5

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