00126-1142 RST 3343 (HD 821)
00h 12m 33.15s -11° 41' 34.7" P.A. 269.00 sep 0.3 mag 8.98,8.98 Sp F0V dist. 174.83 pc (570.3 l.y.)
| Coord 2000 |
00126-1142 |
|
Discov num |
RST3343 |
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Comp |
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Coord arcsec 2000 |
00 12 33.15 -11 41 34.7 |
|
| Date first |
1938 |
|
Date last |
2021 |
|
Obs |
15 |
|
| Pa first |
135 |
|
Pa last |
269 |
|
P.A. Now (θ) |
269° |
|
| Sep first |
0.3 |
|
Sep last |
0.278 |
|
Sep. Now (ρ) |
0.278" |
|
| Mag pri |
8.98 |
|
Mag sec |
8.98 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F0V (yellow-white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
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| Pri motion dec |
+001 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 821 |
|
Constellation |
Cetus |
|
SAO |
147148 |
|
HIP |
1005 |
|
| Tycho2 |
5264-00128-1 |
|
Gaia DR2 |
2427475662698911872 |
|
HD |
821 |
|
BD |
BD-12 14 |
|
| Distance |
174.83 |
|
Distance ly |
570.3 |
|
ORBITAL ELEMENTS
| Period (P) | 187.8y | |
Periastron (T) | 2058.25y | |
Semi-major axis (a) | 0.277a | |
| Eccentricity (e) | 0.164 | |
Inclination (i) | 42° | |
Longitude of periastron (ω) | 272.5° | |
| Node (Ω) | 88.9° | |
Notes | | |
Reference | Doc2013g | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
241.2 |
0.276 |
| 2001 |
242.7 |
0.277 |
| 2002 |
244.1 |
0.278 |
| 2003 |
245.4 |
0.278 |
| 2004 |
246.8 |
0.279 |
| 2005 |
248.2 |
0.279 |
| 2006 |
249.6 |
0.280 |
| 2007 |
251.0 |
0.280 |
| 2008 |
252.4 |
0.280 |
| 2009 |
253.7 |
0.280 |
| 2010 |
255.1 |
0.280 |
| 2011 |
256.5 |
0.280 |
| 2012 |
257.9 |
0.279 |
| 2013 |
259.2 |
0.279 |
| 2014 |
260.6 |
0.278 |
| 2015 |
262.0 |
0.277 |
| 2016 |
263.4 |
0.276 |
| 2017 |
264.9 |
0.275 |
| 2018 |
266.3 |
0.274 |
| 2019 |
267.7 |
0.273 |
| 2020 |
269.2 |
0.271 |
| 2021 |
270.7 |
0.270 |
| 2022 |
272.2 |
0.268 |
| 2023 |
273.7 |
0.266 |
| 2024 |
275.2 |
0.264 |
| 2025 |
276.8 |
0.262 |
| 2026 |
278.4 |
0.259 |
| 2027 |
280.0 |
0.257 |
| 2028 |
281.6 |
0.254 |
| 2029 |
283.3 |
0.251 |
| 2030 |
285.1 |
0.248 |
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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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