02572+0153 A 2413 (HD 18368)
02h 57m 14.90s +01° 53' 15.3" P.A. 167.00 sep 0.6 mag 8.28,8.62 Sp G0V dist. 46.47 pc (151.59 l.y.)
| Coord 2000 |
02572+0153 |
|
Discov num |
A 2413 |
|
Comp |
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|
Coord arcsec 2000 |
02 57 14.90 +01 53 15.3 |
|
| Date first |
1912 |
|
Date last |
2019 |
|
Obs |
98 |
|
| Pa first |
182 |
|
Pa last |
167.3 |
|
P.A. Now (θ) |
170.3° |
|
| Sep first |
0.5 |
|
Sep last |
0.604 |
|
Sep. Now (ρ) |
0.652" |
|
| Mag pri |
8.28 |
|
Mag sec |
8.62 |
|
delta mag (ΔM) |
0.34 |
|
Spectral class |
G0V (yellow) |
|
| Pri motion ra |
+099 |
|
Sec motion ra |
|
|
| Pri motion dec |
-101 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 18368 |
|
Constellation |
Cetus |
|
SAO |
110868 |
|
HIP |
13773 |
|
| Tycho2 |
0048-01066-1 |
|
Gaia DR2 |
1268325318000128 |
|
HD |
18368 |
|
GC |
3551 |
|
| ADS |
2236 |
|
BD |
BD+01 515 |
|
Distance |
46.47 |
|
Distance ly |
151.59 |
|
ORBITAL ELEMENTS
| Period (P) | 126.9y | ± 3 |
Periastron (T) | 1930.5y | ± 3.8 |
Semi-major axis (a) | 0.658a | ± 0.023 |
| Eccentricity (e) | 0.458 | ± 0.051 |
Inclination (i) | 71.2° | ± 1.9 |
Longitude of periastron (ω) | 102.6° | ± 6.1 |
| Node (Ω) | 184.8° | ± 0.9 |
Notes | n | |
Reference | Msn2021c | |
| Equinox | | |
Last observation | 2019 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
143.0 |
0.433 |
| 2001 |
144.8 |
0.445 |
| 2002 |
146.5 |
0.457 |
| 2003 |
148.2 |
0.468 |
| 2004 |
149.7 |
0.480 |
| 2005 |
151.2 |
0.492 |
| 2006 |
152.7 |
0.503 |
| 2007 |
154.0 |
0.515 |
| 2008 |
155.3 |
0.526 |
| 2009 |
156.6 |
0.537 |
| 2010 |
157.8 |
0.548 |
| 2011 |
158.9 |
0.559 |
| 2012 |
160.0 |
0.569 |
| 2013 |
161.1 |
0.579 |
| 2014 |
162.1 |
0.588 |
| 2015 |
163.1 |
0.597 |
| 2016 |
164.1 |
0.606 |
| 2017 |
165.0 |
0.614 |
| 2018 |
166.0 |
0.622 |
| 2019 |
166.9 |
0.629 |
| 2020 |
167.7 |
0.636 |
| 2021 |
168.6 |
0.642 |
| 2022 |
169.4 |
0.647 |
| 2023 |
170.3 |
0.652 |
| 2024 |
171.1 |
0.656 |
| 2025 |
171.9 |
0.659 |
| 2026 |
172.7 |
0.662 |
| 2027 |
173.5 |
0.663 |
| 2028 |
174.3 |
0.664 |
| 2029 |
175.1 |
0.664 |
| 2030 |
175.9 |
0.662 |
|
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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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