00021-6817 I 699 AB (HD 224953)
00h 02m 08.72s -68° 16' 50.6" P.A. 131.00 sep 4.2 mag 9.71,10.56 Sp K5/M0V dist. 15.33 pc (50.01 l.y.)
| Coord 2000 |
00021-6817 |
|
Discov num |
I 699 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 02 08.72 -68 16 50.6 |
|
| Date first |
1907 |
|
Date last |
2015 |
|
Obs |
15 |
|
| Pa first |
85 |
|
Pa last |
130.8 |
|
P.A. Now (θ) |
130.8° |
|
| Sep first |
1.0 |
|
Sep last |
4.219 |
|
Sep. Now (ρ) |
4.219" |
|
| Mag pri |
9.71 |
|
Mag sec |
10.56 |
|
delta mag (ΔM) |
0.85 |
|
Spectral class |
K5/M0V (yellow-orange) |
|
| Pri motion ra |
+208 |
|
Sec motion ra |
+207 |
|
| Pri motion dec |
-232 |
|
Sec motion dec |
-232 |
|
| Notes |
O
(Orbital solution) |
|
rPM=0.003 (< 0.3, Physical double)
This double is physical.
00021-6817 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 224953 |
|
00 02 09 -68 16 51 |
I 699 AB |
2015 |
15 |
131 |
4.2 |
9.71 |
10.56 |
0.85 |
Y |
<=== |
| Show |
|
|
00 02 09 -68 16 51 |
BAU 2 AC |
2016 |
4 |
50 |
46.0 |
9.71 |
15.22 |
5.51 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 224953 |
|
Constellation |
Tucana |
|
HIP |
169 |
|
Tycho2 |
9134-01714-1 |
|
| Gaia DR2 |
4706564427272810624 |
|
HD |
224953 |
|
CD |
CD-68 2373 |
|
CP |
CP-68 3594 |
|
| Distance |
15.33 |
|
Distance ly |
50.01 |
|
ORBITAL ELEMENTS
| Period (P) | 290y | |
Periastron (T) | 1884.54y | |
Semi-major axis (a) | 2.738a | |
| Eccentricity (e) | 0.65 | |
Inclination (i) | 57.7° | |
Longitude of periastron (ω) | 207.1° | |
| Node (Ω) | 117.8° | |
Notes | | |
Reference | Zir2013d | |
| Equinox | 2000 | |
Last observation | 2000 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
126.9 |
4.252 |
| 2001 |
127.1 |
4.255 |
| 2002 |
127.3 |
4.258 |
| 2003 |
127.5 |
4.260 |
| 2004 |
127.7 |
4.262 |
| 2005 |
127.9 |
4.263 |
| 2006 |
128.1 |
4.264 |
| 2007 |
128.3 |
4.264 |
| 2008 |
128.5 |
4.265 |
| 2009 |
128.8 |
4.264 |
| 2010 |
129.0 |
4.263 |
| 2011 |
129.2 |
4.262 |
| 2012 |
129.4 |
4.261 |
| 2013 |
129.6 |
4.259 |
| 2014 |
129.8 |
4.256 |
| 2015 |
130.0 |
4.254 |
| 2016 |
130.2 |
4.250 |
| 2017 |
130.4 |
4.247 |
| 2018 |
130.6 |
4.243 |
| 2019 |
130.8 |
4.239 |
| 2020 |
131.1 |
4.234 |
| 2021 |
131.3 |
4.229 |
| 2022 |
131.5 |
4.223 |
| 2023 |
131.7 |
4.217 |
| 2024 |
131.9 |
4.211 |
| 2025 |
132.1 |
4.204 |
| 2026 |
132.3 |
4.197 |
| 2027 |
132.5 |
4.190 |
| 2028 |
132.8 |
4.182 |
| 2029 |
133.0 |
4.174 |
| 2030 |
133.2 |
4.165 |
| 2031 |
133.4 |
4.156 |
| 2032 |
133.6 |
4.147 |
| 2033 |
133.9 |
4.137 |
| 2034 |
134.1 |
4.127 |
| 2035 |
134.3 |
4.117 |
| 2036 |
134.5 |
4.106 |
| 2037 |
134.7 |
4.095 |
| 2038 |
135.0 |
4.083 |
| 2039 |
135.2 |
4.072 |
| 2040 |
135.4 |
4.059 |
| 2041 |
135.7 |
4.047 |
| 2042 |
135.9 |
4.034 |
| 2043 |
136.1 |
4.020 |
| 2044 |
136.4 |
4.007 |
| 2045 |
136.6 |
3.993 |
| 2046 |
136.8 |
3.978 |
| 2047 |
137.1 |
3.963 |
| 2048 |
137.3 |
3.948 |
| 2049 |
137.6 |
3.933 |
| 2050 |
137.8 |
3.917 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
