00494-2313 PES 1
00h 49m 26.76s -23° 12' 44.9" P.A. 194.00 sep 0.6 mag 5.30,14.50 Sp G9V+L9 dist. 18.69 pc (60.97 l.y.)
| Coord 2000 |
00494-2313 |
|
Discov num |
PES 1 |
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Comp |
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Coord arcsec 2000 |
00 49 26.76 -23 12 44.9 |
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| Date first |
2008 |
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Date last |
2018 |
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Obs |
7 |
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| Pa first |
156 |
|
Pa last |
193.8 |
|
P.A. Now (θ) |
193.8° |
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| Sep first |
0.6 |
|
Sep last |
0.577 |
|
Sep. Now (ρ) |
0.577" |
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| Mag pri |
5.30 |
|
Mag sec |
14.50 |
|
delta mag (ΔM) |
9.2 |
|
Spectral class |
G9V+L9 (yellow/very deep red) |
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| Pri motion ra |
+518 |
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Sec motion ra |
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| Pri motion dec |
+124 |
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Sec motion dec |
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| Notes |
N
O
W
(See Notes, Orbital solution, ) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cetus |
|
HIP |
3850 |
|
Tycho2 |
6421-00822-1 |
|
HD |
4747 |
|
| GL |
Gl 36 |
|
CD |
CD-23 315 |
|
CP |
CP-23 95 |
|
Distance |
18.69 |
|
| Distance ly |
60.97 |
|
ORBITAL ELEMENTS
| Period (P) | 33.08y | ± 0.7 |
Periastron (T) | 50473.9d (1997.069y) | ± 5.2 |
Semi-major axis (a) | 0.5199a | ± 0.0512 |
| Eccentricity (e) | 0.732 | ± 0.0023 |
Inclination (i) | 46.3° | ± 1.1 |
Longitude of periastron (ω) | 266.9° | ± 0.47 |
| Node (Ω) | 89.9° | ± 1.4 |
Notes | n | |
Reference | Pes2019 | |
| Equinox | | |
Last observation | 2017 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
111.5 |
0.374 |
| 2001 |
120.1 |
0.428 |
| 2002 |
126.9 |
0.470 |
| 2003 |
132.8 |
0.504 |
| 2004 |
137.9 |
0.532 |
| 2005 |
142.6 |
0.554 |
| 2006 |
147.0 |
0.573 |
| 2007 |
151.1 |
0.588 |
| 2008 |
155.0 |
0.600 |
| 2009 |
158.8 |
0.609 |
| 2010 |
162.5 |
0.616 |
| 2011 |
166.1 |
0.621 |
| 2012 |
169.7 |
0.623 |
| 2013 |
173.2 |
0.624 |
| 2014 |
176.8 |
0.622 |
| 2015 |
180.4 |
0.619 |
| 2016 |
184.0 |
0.614 |
| 2017 |
187.8 |
0.607 |
| 2018 |
191.6 |
0.598 |
| 2019 |
195.5 |
0.586 |
| 2020 |
199.6 |
0.573 |
| 2021 |
204.0 |
0.557 |
| 2022 |
208.6 |
0.538 |
| 2023 |
213.6 |
0.516 |
| 2024 |
219.0 |
0.490 |
| 2025 |
225.2 |
0.459 |
| 2026 |
232.3 |
0.422 |
| 2027 |
241.0 |
0.375 |
| 2028 |
252.8 |
0.312 |
| 2029 |
272.2 |
0.223 |
| 2030 |
334.3 |
0.103 |
| 2031 |
73.2 |
0.184 |
| 2032 |
98.1 |
0.294 |
| 2033 |
110.7 |
0.369 |
| 2034 |
119.5 |
0.424 |
| 2035 |
126.4 |
0.467 |
| 2036 |
132.3 |
0.502 |
| 2037 |
137.5 |
0.530 |
| 2038 |
142.3 |
0.552 |
| 2039 |
146.6 |
0.571 |
| 2040 |
150.8 |
0.587 |
| 2041 |
154.7 |
0.599 |
| 2042 |
158.5 |
0.608 |
| 2043 |
162.2 |
0.615 |
| 2044 |
165.8 |
0.620 |
| 2045 |
169.4 |
0.623 |
| 2046 |
173.0 |
0.624 |
| 2047 |
176.5 |
0.623 |
| 2048 |
180.1 |
0.619 |
| 2049 |
183.8 |
0.614 |
| 2050 |
187.5 |
0.607 |
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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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