04382-1418 KUI 18 (Sceptrum)
04h 38m 10.82s -14° 18' 14.3" P.A. 5.00 sep 1.1 mag 4.02,6.95 Sp K2IIIb dist. 33.68 pc (109.86 l.y.)
| Coord 2000 |
04382-1418 |
|
Discov num |
KUI 18 |
|
Comp |
|
|
Coord arcsec 2000 |
04 38 10.82 -14 18 14.3 |
|
| Date first |
1934 |
|
Date last |
2018 |
|
Obs |
72 |
|
| Pa first |
1 |
|
Pa last |
5.4 |
|
P.A. Now (θ) |
9.2° |
|
| Sep first |
1.1 |
|
Sep last |
1.055 |
|
Sep. Now (ρ) |
0.989" |
|
| Mag pri |
4.02 |
|
Mag sec |
6.95 |
|
delta mag (ΔM) |
2.93 |
|
Spectral class |
K2IIIb (yellow-orange) |
|
| Pri motion ra |
-076 |
|
Sec motion ra |
-076 |
|
| Pri motion dec |
-167 |
|
Sec motion dec |
-167 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Sceptrum |
|
Constellation |
Eridanus |
|
SAO |
149781 |
|
HIP |
21594 |
|
| Tycho2 |
5327-01434-1 |
|
Gaia DR2 |
3174163561127715328 |
|
HD |
29503 |
|
HR |
1481 |
|
| GC |
5657 |
|
GL |
Wo 9160A |
|
BD |
BD-14 933 |
|
Flamsteed |
53 Eridani |
|
| Flamsteed name |
53 Eri |
|
FK5 |
172 |
|
Distance |
33.68 |
|
Distance ly |
109.86 |
|
ORBITAL ELEMENTS
| Period (P) | 77.2414y | ± 0.9148 |
Periastron (T) | 1976.7364y | ± 0.4945 |
Semi-major axis (a) | 0.70201a | ± 0.00816 |
| Eccentricity (e) | 0.66102 | ± 0.02594 |
Inclination (i) | 59.716° | ± 1.798 |
Longitude of periastron (ω) | 24.538° | ± 3.188 |
| Node (Ω) | 170.117° | ± 1.731 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
351.8 |
1.030 |
| 2001 |
352.6 |
1.045 |
| 2002 |
353.4 |
1.059 |
| 2003 |
354.2 |
1.072 |
| 2004 |
354.9 |
1.082 |
| 2005 |
355.7 |
1.091 |
| 2006 |
356.4 |
1.098 |
| 2007 |
357.1 |
1.103 |
| 2008 |
357.8 |
1.107 |
| 2009 |
358.5 |
1.109 |
| 2010 |
359.3 |
1.110 |
| 2011 |
360.0 |
1.109 |
| 2012 |
0.7 |
1.107 |
| 2013 |
1.4 |
1.103 |
| 2014 |
2.1 |
1.098 |
| 2015 |
2.8 |
1.091 |
| 2016 |
3.6 |
1.083 |
| 2017 |
4.3 |
1.074 |
| 2018 |
5.1 |
1.063 |
| 2019 |
5.8 |
1.051 |
| 2020 |
6.6 |
1.038 |
| 2021 |
7.5 |
1.023 |
| 2022 |
8.3 |
1.007 |
| 2023 |
9.2 |
0.989 |
| 2024 |
10.1 |
0.970 |
| 2025 |
11.0 |
0.950 |
| 2026 |
12.0 |
0.929 |
| 2027 |
13.0 |
0.906 |
| 2028 |
14.1 |
0.882 |
| 2029 |
15.3 |
0.857 |
| 2030 |
16.5 |
0.831 |
|
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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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