01494-1042 AMM 1 AB (EZ Cet)
01h 49m 23.43s -10° 42' 11.9" P.A. 354.00 sep 6.1 mag 5.15,9.50 Sp G1V dist. 22.56 pc (73.59 l.y.)
| Coord 2000 |
01494-1042 |
|
Discov num |
AMM 1 |
|
Comp |
AB |
|
Coord arcsec 2000 |
01 49 23.43 -10 42 11.9 |
|
| Date first |
2004 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
354 |
|
Pa last |
353.5 |
|
P.A. Now (θ) |
353.5° |
|
| Sep first |
6.4 |
|
Sep last |
6.066 |
|
Sep. Now (ρ) |
6.066" |
|
| Mag pri |
5.15 |
|
Mag sec |
9.50 |
|
delta mag (ΔM) |
4.35 |
|
Spectral class |
G1V (yellow) |
|
| Pri motion ra |
-125 |
|
Sec motion ra |
|
|
| Pri motion dec |
-106 |
|
Sec motion dec |
|
|
| Notes |
K
(K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
01494-1042 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
EZ Cet |
148033 |
01 49 23 -10 42 12 |
AMM 1 AB |
2015 |
4 |
354 |
6.1 |
5.15 |
9.50 |
4.35 |
Y |
<=== |
| Show |
|
148033 |
01 49 23 -10 42 12 |
AMM 1 AC |
2004 |
1 |
303 |
14.8 |
5.15 |
19.90 |
14.75 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
EZ Cet |
|
Constellation |
Cetus |
|
SAO |
148033 |
|
HIP |
8486 |
|
| Tycho2 |
5278-02439-1 |
|
Gaia DR2 |
2461045711199481472 |
|
HD |
11131 |
|
BD |
BD-11 351 |
|
| Distance |
22.56 |
|
Distance ly |
73.59 |
|
ORBITAL ELEMENTS
| Period (P) | 6.765y | ± 3.162 |
Periastron (T) | 1993.89y | ± 2.872 |
Semi-major axis (a) | 53.2m | ± 10.6 |
| Eccentricity (e) | 0.45 | ± 0.23 |
Inclination (i) | 64° | ± 2 |
Longitude of periastron (ω) | 65° | ± 94 |
| Node (Ω) | 333° | ± 91 |
Notes | | |
Reference | Gln2007 | |
| Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
325.4 |
0.039 |
| 2001 |
109.7 |
0.019 |
| 2002 |
156.5 |
0.056 |
| 2003 |
173.5 |
0.058 |
| 2004 |
195.1 |
0.045 |
| 2005 |
237.7 |
0.032 |
| 2006 |
294.6 |
0.036 |
| 2007 |
335.7 |
0.034 |
| 2008 |
133.0 |
0.031 |
| 2009 |
160.7 |
0.059 |
| 2010 |
177.7 |
0.056 |
| 2011 |
202.5 |
0.042 |
| 2012 |
251.8 |
0.031 |
| 2013 |
304.8 |
0.038 |
| 2014 |
351.1 |
0.026 |
| 2015 |
143.6 |
0.042 |
| 2016 |
164.7 |
0.060 |
| 2017 |
182.3 |
0.053 |
| 2018 |
211.3 |
0.038 |
| 2019 |
266.1 |
0.031 |
| 2020 |
314.1 |
0.039 |
| 2021 |
27.8 |
0.015 |
| 2022 |
150.3 |
0.049 |
| 2023 |
168.5 |
0.060 |
| 2024 |
187.5 |
0.050 |
| 2025 |
221.9 |
0.035 |
| 2026 |
279.7 |
0.033 |
| 2027 |
323.0 |
0.039 |
| 2028 |
98.3 |
0.016 |
| 2029 |
155.3 |
0.055 |
| 2030 |
172.4 |
0.059 |
| 2031 |
193.5 |
0.046 |
| 2032 |
234.3 |
0.032 |
| 2033 |
291.7 |
0.035 |
| 2034 |
332.8 |
0.036 |
| 2035 |
129.0 |
0.028 |
| 2036 |
159.7 |
0.058 |
| 2037 |
176.6 |
0.057 |
| 2038 |
200.5 |
0.043 |
| 2039 |
248.1 |
0.031 |
| 2040 |
302.3 |
0.037 |
| 2041 |
346.2 |
0.028 |
| 2042 |
141.4 |
0.039 |
| 2043 |
163.7 |
0.060 |
| 2044 |
181.1 |
0.054 |
| 2045 |
208.9 |
0.039 |
| 2046 |
262.5 |
0.031 |
| 2047 |
311.8 |
0.039 |
| 2048 |
14.2 |
0.017 |
| 2049 |
148.8 |
0.048 |
| 2050 |
167.5 |
0.060 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
