11214-2027 STN  22 (SZ Crt)

 
 
11H 21M 26.67S -20 27' 13.6" P.A. 355.9 SEP 3.62 MAG 8.88,11.27 SP K4/5V DIST. 13.16 PC (42.93 L.Y.)
 
 
Coord 2000
11214-2027
Discov num
STN  22
Comp
Coord arcsec 2000
11 21 26.67 -20 27 13.6
Date first
1877
Date last
1999
Obs
19
Pa first
306
Pa last
345
P.A. Now (θ)
355.9°
Sep first
6.4
Sep last
4.3
Sep. Now (ρ)
3.62"
Mag pri
8.88
Mag sec
11.27
delta mag (ΔM)
2.39
Spectral class
K4/5V (yellow-orange)
Pri motion ra
+179
Sec motion ra
+179
Pri motion dec
-115
Sec motion dec
-115
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
SZ Crt
Constellation
Crater
SAO
179801
HIP
55454
Tycho2
6090-01204-1
HD
98712
ADS
8138
GL
Gl 425A
BD
BD-19 3242
Distance
13.16
Distance ly
42.93
last precise pa
345
last precise sep
4.323
 
 
ORBITAL ELEMENTS
 
 
Period (P)714.6y Periastron (T)2063.9y Semi-major axis (a)5.896a
Eccentricity (e)0.63 Inclination (i)47.4° Longitude of periastron (ω)272.1°
Node (Ω)175.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1998
label rho theta
2000 4.248 345.8
2001 4.215 346.3
2002 4.182 346.8
2003 4.148 347.4
2004 4.114 347.9
2005 4.079 348.4
2006 4.043 349.0
2007 4.007 349.6
2008 3.971 350.2
2009 3.934 350.7
2010 3.896 351.3
2011 3.858 352.0
2012 3.819 352.6
2013 3.779 353.2
2014 3.739 353.9
2015 3.699 354.5
2016 3.657 355.2
2017 3.615 355.9
2018 3.572 356.6
2019 3.529 357.4
2020 3.485 358.1
2021 3.440 358.9
2022 3.394 359.7
2023 3.348 0.5
2024 3.301 1.3
2025 3.254 2.2
2026 3.205 3.0
2027 3.156 4.0
2028 3.107 4.9
2029 3.056 5.9
2030 3.005 6.9

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