01259-4754 RST 33 AB (HD 8821)
01h 25m 56.10s -47° 53' 55.9" P.A. 302.00 sep 1.1 mag 8.13,9.77 Sp K0V dist. 37.68 pc (122.91 l.y.)
| Coord 2000 |
01259-4754 |
|
Discov num |
RST 33 |
|
Comp |
AB |
|
Coord arcsec 2000 |
01 25 56.10 -47 53 55.9 |
|
| Date first |
1928 |
|
Date last |
2016 |
|
Obs |
40 |
|
| Pa first |
227 |
|
Pa last |
302.4 |
|
P.A. Now (θ) |
302.4° |
|
| Sep first |
0.5 |
|
Sep last |
1.12 |
|
Sep. Now (ρ) |
1.12" |
|
| Mag pri |
8.13 |
|
Mag sec |
9.77 |
|
delta mag (ΔM) |
1.64 |
|
Spectral class |
K0V (yellow-orange) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
-019 |
|
| Pri motion dec |
-130 |
|
Sec motion dec |
-130 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
01259-4754 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 8821 |
215503 |
01 25 56 -47 53 56 |
RST 33 AB |
2016 |
40 |
302 |
1.1 |
8.13 |
9.77 |
1.64 |
Y |
<=== |
| Show |
|
215503 |
01 25 56 -47 53 56 |
KPP 4348 AC |
2016 |
4 |
3 |
18.2 |
8.60 |
14.30 |
5.70 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 8821 |
|
Constellation |
Phoenix |
|
SAO |
215503 |
|
HIP |
6693 |
|
| Tycho2 |
8036-00856-1 |
|
HD |
8821 |
|
CD |
CD-48 367 |
|
CP |
CP-48 165 |
|
| Distance |
37.68 |
|
Distance ly |
122.91 |
|
ORBITAL ELEMENTS
| Period (P) | 175.3379y | ± 9.2102 |
Periastron (T) | 1951.4746y | ± 0.6665 |
Semi-major axis (a) | 0.91477a | ± 0.04416 |
| Eccentricity (e) | 0.79785 | ± 0.02203 |
Inclination (i) | 123.438° | ± 2.86 |
Longitude of periastron (ω) | 67.124° | ± 2.903 |
| Node (Ω) | 155.63° | ± 2.555 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
301.8 |
1.080 |
| 2001 |
301.3 |
1.084 |
| 2002 |
300.9 |
1.087 |
| 2003 |
300.4 |
1.090 |
| 2004 |
299.9 |
1.093 |
| 2005 |
299.4 |
1.096 |
| 2006 |
298.9 |
1.098 |
| 2007 |
298.5 |
1.100 |
| 2008 |
298.0 |
1.102 |
| 2009 |
297.5 |
1.103 |
| 2010 |
297.1 |
1.104 |
| 2011 |
296.6 |
1.105 |
| 2012 |
296.1 |
1.106 |
| 2013 |
295.7 |
1.106 |
| 2014 |
295.2 |
1.107 |
| 2015 |
294.7 |
1.107 |
| 2016 |
294.3 |
1.107 |
| 2017 |
293.8 |
1.106 |
| 2018 |
293.3 |
1.106 |
| 2019 |
292.9 |
1.105 |
| 2020 |
292.4 |
1.104 |
| 2021 |
291.9 |
1.103 |
| 2022 |
291.5 |
1.102 |
| 2023 |
291.0 |
1.100 |
| 2024 |
290.5 |
1.098 |
| 2025 |
290.0 |
1.097 |
| 2026 |
289.6 |
1.094 |
| 2027 |
289.1 |
1.092 |
| 2028 |
288.6 |
1.090 |
| 2029 |
288.1 |
1.087 |
| 2030 |
287.6 |
1.084 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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