04400-3105 HDS 602
04h 40m 01.28s -31° 04' 32.6" P.A. 114.00 sep 0.0 mag 11.60,12.45 Sp Kp dist. 29.89 pc (97.5 l.y.)
| Coord 2000 |
04400-3105 |
|
Discov num |
HDS 602 |
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Comp |
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Coord arcsec 2000 |
04 40 01.28 -31 04 32.6 |
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| Date first |
1991 |
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Date last |
2021 |
|
Obs |
8 |
|
| Pa first |
196 |
|
Pa last |
113.8 |
|
P.A. Now (θ) |
113.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.048 |
|
Sep. Now (ρ) |
0.048" |
|
| Mag pri |
11.60 |
|
Mag sec |
12.45 |
|
delta mag (ΔM) |
0.85 |
|
Spectral class |
Kp (yellow-orange) |
|
| Pri motion ra |
+015 |
|
Sec motion ra |
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| Pri motion dec |
+156 |
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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
| Constellation |
Caelum |
|
HIP |
21733 |
|
Tycho2 |
7039-01524-3 |
|
CD |
CD-31 1974 |
|
| Distance |
29.89 |
|
Distance ly |
97.5 |
|
ORBITAL ELEMENTS
| Period (P) | 14y | |
Periastron (T) | 1995.58y | |
Semi-major axis (a) | 0.176a | |
| Eccentricity (e) | 0.7 | |
Inclination (i) | 139° | |
Longitude of periastron (ω) | 75.3° | |
| Node (Ω) | 108.2° | |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
238.1 |
0.225 |
| 2001 |
229.9 |
0.232 |
| 2002 |
222.0 |
0.233 |
| 2003 |
214.0 |
0.229 |
| 2004 |
205.5 |
0.220 |
| 2005 |
196.0 |
0.206 |
| 2006 |
185.0 |
0.188 |
| 2007 |
171.3 |
0.164 |
| 2008 |
151.8 |
0.133 |
| 2009 |
114.8 |
0.083 |
| 2010 |
316.8 |
0.066 |
| 2011 |
274.3 |
0.142 |
| 2012 |
258.2 |
0.184 |
| 2013 |
247.2 |
0.210 |
| 2014 |
238.1 |
0.225 |
| 2015 |
229.9 |
0.232 |
| 2016 |
222.0 |
0.233 |
| 2017 |
214.0 |
0.229 |
| 2018 |
205.5 |
0.220 |
| 2019 |
196.0 |
0.206 |
| 2020 |
185.0 |
0.188 |
| 2021 |
171.3 |
0.164 |
| 2022 |
151.8 |
0.133 |
| 2023 |
114.8 |
0.083 |
| 2024 |
316.8 |
0.066 |
| 2025 |
274.3 |
0.142 |
| 2026 |
258.2 |
0.184 |
| 2027 |
247.2 |
0.210 |
| 2028 |
238.1 |
0.225 |
| 2029 |
229.9 |
0.232 |
| 2030 |
222.0 |
0.233 |
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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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