01528-0447 RST 4188 (HD 11488)
01h 52m 45.64s -04° 47' 15.9" P.A. 42.00 sep 0.4 mag 9.95,10.02 Sp G0
Coord 2000 |
01528-0447 |
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Discov num |
RST4188 |
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Comp |
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Coord arcsec 2000 |
01 52 45.64 -04 47 15.9 |
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Date first |
1939 |
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Date last |
2016 |
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Obs |
24 |
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Pa first |
302 |
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Pa last |
42.2 |
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P.A. Now (θ) |
42.2° |
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Sep first |
0.2 |
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Sep last |
0.351 |
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Sep. Now (ρ) |
0.351" |
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Mag pri |
9.95 |
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Mag sec |
10.02 |
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delta mag (ΔM) |
0.07 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
+010 |
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Sec motion ra |
+010 |
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Pri motion dec |
-022 |
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Sec motion dec |
-022 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 11488 |
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Constellation |
Cetus |
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SAO |
129548 |
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Tycho2 |
4688-00919-1 |
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Gaia DR2 |
2491991569041723776 |
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HD |
11488 |
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ORBITAL ELEMENTS
Period (P) | 618.71y | |
Periastron (T) | 2619.26y | |
Semi-major axis (a) | 1.048a | |
Eccentricity (e) | 0.553 | |
Inclination (i) | 72.1° | |
Longitude of periastron (ω) | 10.9° | |
Node (Ω) | 22.7° | |
Notes | | |
Reference | Tok2015c | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
25.7 |
0.463 |
2001 |
26.4 |
0.459 |
2002 |
27.2 |
0.455 |
2003 |
28.0 |
0.451 |
2004 |
28.8 |
0.446 |
2005 |
29.7 |
0.441 |
2006 |
30.5 |
0.436 |
2007 |
31.4 |
0.430 |
2008 |
32.3 |
0.424 |
2009 |
33.2 |
0.417 |
2010 |
34.2 |
0.410 |
2011 |
35.2 |
0.403 |
2012 |
36.2 |
0.395 |
2013 |
37.2 |
0.387 |
2014 |
38.4 |
0.379 |
2015 |
39.5 |
0.371 |
2016 |
40.7 |
0.362 |
2017 |
42.0 |
0.354 |
2018 |
43.4 |
0.345 |
2019 |
44.8 |
0.336 |
2020 |
46.3 |
0.327 |
2021 |
47.8 |
0.318 |
2022 |
49.5 |
0.309 |
2023 |
51.3 |
0.300 |
2024 |
53.1 |
0.291 |
2025 |
55.1 |
0.282 |
2026 |
57.3 |
0.273 |
2027 |
59.5 |
0.265 |
2028 |
61.9 |
0.257 |
2029 |
64.5 |
0.249 |
2030 |
67.2 |
0.241 |
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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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