00524-6930 DUN 2 (Lam1 Tuc)
00h 52m 24.52s -69° 30' 13.6" P.A. 83.00 sep 20.5 mag 6.70,7.35 Sp F7IV-V dist. 63.29 pc (206.45 l.y.)
Coord 2000 |
00524-6930 |
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Discov num |
DUN 2 |
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Comp |
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Coord arcsec 2000 |
00 52 24.52 -69 30 13.6 |
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Date first |
1834 |
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Date last |
2021 |
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Obs |
39 |
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Pa first |
77 |
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Pa last |
82.7 |
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P.A. Now (θ) |
82.7° |
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Sep first |
22.5 |
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Sep last |
20.53 |
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Sep. Now (ρ) |
20.53" |
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Mag pri |
6.70 |
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Mag sec |
7.35 |
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delta mag (ΔM) |
0.65 |
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Spectral class |
F7IV-V (yellow-white) |
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Pri motion ra |
+004 |
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Sec motion ra |
-003 |
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Pri motion dec |
-069 |
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Sec motion dec |
-060 |
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Notes |
N
V
(See Notes, Proper motion indicates physical) |
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rPM=0.165 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
Lam1 Tuc |
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Var name |
NSV334 Tuc |
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Constellation |
Tucana |
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SAO |
248269 |
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HIP |
4084 |
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Tycho2 |
9135-01891-1 |
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Gaia DR2 |
4691995692046507520 |
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HD |
5190 |
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HR |
252 |
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GC |
1056 |
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DM |
CP-70 38 |
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CD |
CD-70 38 |
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CP |
CP-70 37 |
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Bayer |
Lambda 1 Tucanae |
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Bayer name |
Lam1 Tuc |
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Distance |
63.29 |
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Distance ly |
206.45 |
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Bayer greek |
λ1 Tuc |
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ORBITAL ELEMENTS
Period (P) | 5800c | |
Periastron (T) | 6100y | ± 800 |
Semi-major axis (a) | 170a | ± 11 |
Eccentricity (e) | 0.74 | ± 0.02 |
Inclination (i) | 66.4° | ± 0.5 |
Longitude of periastron (ω) | 105° | ± 4 |
Node (Ω) | 14.1° | ± 0.9 |
Notes | | |
Reference | LRR2018b | |
Equinox | 2000 | |
Last observation | 2018 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
81.1 |
19.719 |
2001 |
81.1 |
19.717 |
2002 |
81.1 |
19.716 |
2003 |
81.1 |
19.714 |
2004 |
81.1 |
19.712 |
2005 |
81.1 |
19.710 |
2006 |
81.1 |
19.708 |
2007 |
81.2 |
19.706 |
2008 |
81.2 |
19.705 |
2009 |
81.2 |
19.703 |
2010 |
81.2 |
19.701 |
2011 |
81.2 |
19.699 |
2012 |
81.2 |
19.697 |
2013 |
81.2 |
19.695 |
2014 |
81.2 |
19.694 |
2015 |
81.3 |
19.692 |
2016 |
81.3 |
19.690 |
2017 |
81.3 |
19.688 |
2018 |
81.3 |
19.686 |
2019 |
81.3 |
19.684 |
2020 |
81.3 |
19.683 |
2021 |
81.3 |
19.681 |
2022 |
81.3 |
19.679 |
2023 |
81.4 |
19.677 |
2024 |
81.4 |
19.675 |
2025 |
81.4 |
19.673 |
2026 |
81.4 |
19.672 |
2027 |
81.4 |
19.670 |
2028 |
81.4 |
19.668 |
2029 |
81.4 |
19.666 |
2030 |
81.4 |
19.664 |
2031 |
81.5 |
19.663 |
2032 |
81.5 |
19.661 |
2033 |
81.5 |
19.659 |
2034 |
81.5 |
19.657 |
2035 |
81.5 |
19.655 |
2036 |
81.5 |
19.653 |
2037 |
81.5 |
19.652 |
2038 |
81.5 |
19.650 |
2039 |
81.6 |
19.648 |
2040 |
81.6 |
19.646 |
2041 |
81.6 |
19.644 |
2042 |
81.6 |
19.643 |
2043 |
81.6 |
19.641 |
2044 |
81.6 |
19.639 |
2045 |
81.6 |
19.637 |
2046 |
81.6 |
19.635 |
2047 |
81.7 |
19.634 |
2048 |
81.7 |
19.632 |
2049 |
81.7 |
19.630 |
2050 |
81.7 |
19.628 |
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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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