02371-1112 HU 1216 AB (HD 16355)
02h 37m 08.62s -11° 11' 51.1" P.A. 41.00 sep 0.7 mag 8.53,9.18 Sp G0 dist. 66.14 pc (215.75 l.y.)
Coord 2000 |
02371-1112 |
|
Discov num |
HU 1216 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 37 08.62 -11 11 51.1 |
|
Date first |
1900 |
|
Date last |
2018 |
|
Obs |
35 |
|
Pa first |
249 |
|
Pa last |
40.8 |
|
P.A. Now (θ) |
40.8° |
|
Sep first |
0.3 |
|
Sep last |
0.679 |
|
Sep. Now (ρ) |
0.679" |
|
Mag pri |
8.53 |
|
Mag sec |
9.18 |
|
delta mag (ΔM) |
0.65 |
|
Spectral class |
G0 (yellow) |
|
Pri motion ra |
+048 |
|
Sec motion ra |
+048 |
|
Pri motion dec |
+026 |
|
Sec motion dec |
+026 |
|
Notes |
O
(Orbital solution) |
|
This double is physical.
02371-1112 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 16355 |
148505 |
02 37 09 -11 11 51 |
HU 1216 AB |
2018 |
35 |
41 |
0.7 |
8.53 |
9.18 |
0.65 |
Y |
<=== |
Show |
|
148505 |
02 37 09 -11 11 51 |
TOK 232 AC |
2015 |
9 |
234 |
187.6 |
8.11 |
11.84 |
3.73 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 16355 |
|
Constellation |
Cetus |
|
SAO |
148505 |
|
HIP |
12204 |
|
Tycho2 |
5288-00842-1 |
|
Gaia DR2 |
5171933342203644160 |
|
HD |
16355 |
|
ADS |
1990 |
|
BD |
BD-11 493 |
|
Distance |
66.14 |
|
Distance ly |
215.75 |
|
ORBITAL ELEMENTS
Period (P) | 351y | ± 271 |
Periastron (T) | 1902y | ± 15 |
Semi-major axis (a) | 1.01a | ± 0.34 |
Eccentricity (e) | 0.508 | ± 0.044 |
Inclination (i) | 64.4° | ± 3.4 |
Longitude of periastron (ω) | 309° | ± 43 |
Node (Ω) | 277° | ± 12 |
Notes | | |
Reference | RAO2015 | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
19.7 |
0.573 |
2001 |
20.8 |
0.578 |
2002 |
22.0 |
0.583 |
2003 |
23.1 |
0.588 |
2004 |
24.2 |
0.593 |
2005 |
25.3 |
0.599 |
2006 |
26.4 |
0.604 |
2007 |
27.5 |
0.610 |
2008 |
28.5 |
0.616 |
2009 |
29.5 |
0.622 |
2010 |
30.5 |
0.628 |
2011 |
31.5 |
0.634 |
2012 |
32.5 |
0.640 |
2013 |
33.4 |
0.646 |
2014 |
34.3 |
0.653 |
2015 |
35.2 |
0.659 |
2016 |
36.1 |
0.666 |
2017 |
37.0 |
0.672 |
2018 |
37.8 |
0.679 |
2019 |
38.7 |
0.686 |
2020 |
39.5 |
0.693 |
2021 |
40.3 |
0.699 |
2022 |
41.1 |
0.706 |
2023 |
41.9 |
0.713 |
2024 |
42.6 |
0.720 |
2025 |
43.4 |
0.727 |
2026 |
44.1 |
0.734 |
2027 |
44.8 |
0.742 |
2028 |
45.5 |
0.749 |
2029 |
46.2 |
0.756 |
2030 |
46.9 |
0.763 |
|
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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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