01158-6853 I 27 CD
01h 15m 00.78s -68° 49' 08.1" P.A. 359.00 sep 1.0 mag 7.76,8.26 Sp K2V dist. 21.65 pc (70.62 l.y.)
Coord 2000 |
01158-6853 |
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Discov num |
I 27 |
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Comp |
CD |
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Coord arcsec 2000 |
01 15 00.78 -68 49 08.1 |
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Date first |
1895 |
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Date last |
2021 |
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Obs |
81 |
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Pa first |
180 |
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Pa last |
359.2 |
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P.A. Now (θ) |
6.2° |
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Sep first |
1.0 |
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Sep last |
1.018 |
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Sep. Now (ρ) |
0.982" |
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Mag pri |
7.76 |
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Mag sec |
8.26 |
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delta mag (ΔM) |
0.5 |
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Spectral class |
K2V (yellow-orange) |
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Pri motion ra |
+360 |
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Sec motion ra |
+426 |
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Pri motion dec |
+095 |
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Sec motion dec |
+121 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.16 (< 0.3, Physical double)
This double is physical.
01158-6853 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Kap Tuc |
248346 |
01 15 46 -68 52 33 |
HJ 3423 AB |
2017 |
78 |
315 |
4.6 |
4.88 |
7.54 |
2.66 |
Y |
|
Show |
|
248346 |
01 15 46 -68 52 33 |
HJ 3423 A,CD |
2010 |
10 |
310 |
319.2 |
4.88 |
7.23 |
2.35 |
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Show |
|
248342 |
01 15 01 -68 49 08 |
I 27 CD |
2021 |
81 |
359 |
1.0 |
7.76 |
8.26 |
0.50 |
Y |
<=== |
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Tucana |
|
SAO |
248342 |
|
HIP |
5842 |
|
Tycho2 |
9136-01758-1 |
|
HD |
7693 |
|
GC |
1517 |
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GL |
Gl 55.1A |
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CD |
CD-69 51 |
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CP |
CP-69 44 |
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Distance |
21.65 |
|
Distance ly |
70.62 |
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ORBITAL ELEMENTS
Period (P) | 84.7785y | ± 0.2953 |
Periastron (T) | 1920.4688y | ± 5.0179 |
Semi-major axis (a) | 1.09664a | ± 0.0101 |
Eccentricity (e) | 0.04027 | ± 0.00476 |
Inclination (i) | 32.561° | ± 1.683 |
Longitude of periastron (ω) | 153.001° | ± 19.541 |
Node (Ω) | 138.062° | ± 2.738 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
271.8 |
0.959 |
2001 |
276.4 |
0.971 |
2002 |
280.9 |
0.983 |
2003 |
285.3 |
0.995 |
2004 |
289.6 |
1.007 |
2005 |
293.8 |
1.018 |
2006 |
297.9 |
1.028 |
2007 |
301.9 |
1.037 |
2008 |
305.9 |
1.044 |
2009 |
309.8 |
1.050 |
2010 |
313.7 |
1.054 |
2011 |
317.6 |
1.057 |
2012 |
321.4 |
1.058 |
2013 |
325.3 |
1.057 |
2014 |
329.1 |
1.054 |
2015 |
333.0 |
1.050 |
2016 |
336.9 |
1.045 |
2017 |
340.9 |
1.038 |
2018 |
344.9 |
1.030 |
2019 |
349.0 |
1.021 |
2020 |
353.2 |
1.012 |
2021 |
357.4 |
1.002 |
2022 |
1.7 |
0.992 |
2023 |
6.2 |
0.982 |
2024 |
10.7 |
0.972 |
2025 |
15.3 |
0.964 |
2026 |
19.9 |
0.956 |
2027 |
24.7 |
0.949 |
2028 |
29.5 |
0.944 |
2029 |
34.3 |
0.940 |
2030 |
39.2 |
0.939 |
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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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