01520+1326 HU 1213

 
 
01H 51M 57.60S +13 25' 38.0" P.A. 73.7 SEP 0.08 MAG 9.46,9.87 SP A3 DIST. 210.97 PC (688.18 L.Y.)
 
 
Coord 2000
01520+1326
Discov num
HU 1213
Comp
Coord arcsec 2000
01 51 57.60 +13 25 38.0
Date first
1904
Date last
2015
Obs
22
Pa first
144
Pa last
63
P.A. Now (θ)
73.7°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.08"
Mag pri
9.46
Mag sec
9.87
delta mag (ΔM)
0.41
Spectral class
A3 (white)
Pri motion ra
+012
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Aries
SAO
92668
HIP
8703
Tycho2
0628-01011-1
HD
11364
ADS
1482
BD
BD+12 246
Distance
210.97
Distance ly
688.18
last precise pa
63.2
last precise sep
0.056
 
 
ORBITAL ELEMENTS
 
 
Period (P)200y Periastron (T)1830y Semi-major axis (a)0.13a
Eccentricity (e)0.725 Inclination (i)139.4° Longitude of periastron (ω)119.6°
Node (Ω)81.3° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.135 97.1
2001 0.133 96.2
2002 0.130 95.3
2003 0.128 94.3
2004 0.125 93.3
2005 0.123 92.3
2006 0.120 91.2
2007 0.117 90.1
2008 0.114 88.9
2009 0.111 87.6
2010 0.107 86.3
2011 0.104 84.9
2012 0.101 83.4
2013 0.097 81.7
2014 0.093 80.0
2015 0.089 78.1
2016 0.085 76.0
2017 0.081 73.7
2018 0.077 71.1
2019 0.072 68.2
2020 0.067 64.9
2021 0.062 61.1
2022 0.057 56.6
2023 0.052 51.2
2024 0.046 44.5
2025 0.041 36.1
2026 0.036 25.2
2027 0.032 11.2
2028 0.029 353.7
2029 0.028 333.9
2030 0.029 314.5

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