14494-6714 DON 680

 
 
14h 49m 23.71s -67 14' 09.6" P.A. 242.1 sep 2.32 mag 7.45,9.76 Sp K0V dist. 24.93 pc (81.32 l.y.)
 
 
Coord 2000
14494-6714
Discov num
DON 680
Comp
Coord arcsec 2000
14 49 23.71 -67 14 09.6
Date first
1929
Date last
2016
Obs
11
Pa first
64
Pa last
244
P.A. Now (θ)
242.1°
Sep first
1.0
Sep last
2.6
Sep. Now (ρ)
2.32"
Mag pri
7.45
Mag sec
9.76
delta mag (ΔM)
2.31
Spectral class
K0V (yellow-orange)
Pri motion ra
-109
Sec motion ra
-109
Pri motion dec
-331
Sec motion dec
-331
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
244.2
Precise sep
2.55
Constellation
Circinus
SAO
252899
HIP
72493
Tycho2
9019-00141-1
HD
130042
CD
CD-66 1650
CP
CP-66 2648
Distance
24.93
Distance ly
81.32
last precise pa
244.2
last precise sep
2.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)261.4y Periastron (T)1943.69y Semi-major axis (a)1.945a
Eccentricity (e)0.436 Inclination (i)102.4° Longitude of periastron (ω)203.8°
Node (Ω)238.9° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 1.851 246.0
2001 1.884 245.7
2002 1.917 245.4
2003 1.950 245.1
2004 1.981 244.9
2005 2.012 244.6
2006 2.042 244.4
2007 2.071 244.1
2008 2.100 243.9
2009 2.128 243.7
2010 2.155 243.5
2011 2.181 243.3
2012 2.207 243.0
2013 2.231 242.8
2014 2.256 242.6
2015 2.279 242.4
2016 2.302 242.2
2017 2.324 242.1
2018 2.345 241.9
2019 2.366 241.7
2020 2.386 241.5
2021 2.405 241.3
2022 2.424 241.2
2023 2.442 241.0
2024 2.459 240.8
2025 2.476 240.7
2026 2.492 240.5
2027 2.507 240.3
2028 2.522 240.2
2029 2.536 240.0
2030 2.549 239.9

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds14494-6714a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14494-6714 DON 680 1991 7 248 1.5 7.45 9.76 K0V D 144923.71-671409.6
14494-6714 DON 680 2009 9 244 2.1 7.45 9.76 K0V D 144923.71-671409.6
14494-6714 DON 680 2013 10 243 2.2 7.45 9.76 K0V D 144923.71-671409.6
14494-6714 DON 680 2016 11 244 2.6 7.45 9.76 K0V O 144923.71-671409.6

If you need more information about this double, apply for a data request form to the WDS.