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 |
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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 |
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Obs |
8 |
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Pa first |
196 |
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Pa last |
113.8 |
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P.A. Now (θ) |
113.8° |
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Sep first |
0.2 |
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Sep last |
0.048 |
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Sep. Now (ρ) |
0.048" |
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Mag pri |
11.60 |
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Mag sec |
12.45 |
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delta mag (ΔM) |
0.85 |
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Spectral class |
Kp (yellow-orange) |
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Pri motion ra |
+015 |
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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 |
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HIP |
21733 |
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Tycho2 |
7039-01524-3 |
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CD |
CD-31 1974 |
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Distance |
29.89 |
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Distance ly |
97.5 |
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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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