11272-1604 HDS 1627 Aa,Ab
11h 27m 14.58s -16° 03' 43.5" P.A. 114.00 sep 0.2 mag 11.47,11.85 Sp K7V dist. 59.14 pc (192.91 l.y.)
| Coord 2000 |
11272-1604 |
|
Discov num |
HDS1627 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
11 27 14.58 -16 03 43.5 |
|
| Date first |
1991 |
|
Date last |
2019 |
|
Obs |
12 |
|
| Pa first |
72 |
|
Pa last |
114.1 |
|
P.A. Now (θ) |
105.5° |
|
| Sep first |
0.2 |
|
Sep last |
0.231 |
|
Sep. Now (ρ) |
0.268" |
|
| Mag pri |
11.47 |
|
Mag sec |
11.85 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
K7V (yellow-orange) |
|
| Pri motion ra |
-182 |
|
Sec motion ra |
|
|
| Pri motion dec |
-115 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
11272-1604 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
11 27 15 -16 03 44 |
HDS 1627 Aa,Ab |
2019 |
12 |
114 |
0.2 |
11.47 |
11.85 |
0.38 |
Y |
<=== |
| Show |
|
|
11 27 15 -16 03 44 |
LDS 4100 AB |
2018 |
8 |
159 |
50.0 |
10.80 |
14.43 |
3.63 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Crater |
|
HIP |
55884 |
|
Tycho2 |
6085-01231-1 |
|
Gaia DR2 |
3560212367203528064 |
|
| BD |
BD-15 3267 |
|
Distance |
59.14 |
|
Distance ly |
192.91 |
|
ORBITAL ELEMENTS
| Period (P) | 46.3y | ± 3.2 |
Periastron (T) | 2003.5y | ± 3.1 |
Semi-major axis (a) | 0.222a | ± 0.026 |
| Eccentricity (e) | 0.358 | ± 0.031 |
Inclination (i) | 119.5° | ± 7 |
Longitude of periastron (ω) | 165° | ± 22.3 |
| Node (Ω) | 89.9° | ± 4.7 |
Notes | n | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
325.7 |
0.091 |
| 2001 |
307.1 |
0.105 |
| 2002 |
293.0 |
0.120 |
| 2003 |
282.1 |
0.134 |
| 2004 |
273.0 |
0.142 |
| 2005 |
264.5 |
0.144 |
| 2006 |
255.8 |
0.140 |
| 2007 |
246.4 |
0.132 |
| 2008 |
235.4 |
0.121 |
| 2009 |
222.3 |
0.111 |
| 2010 |
207.1 |
0.104 |
| 2011 |
190.5 |
0.103 |
| 2012 |
174.4 |
0.107 |
| 2013 |
160.3 |
0.117 |
| 2014 |
148.8 |
0.131 |
| 2015 |
139.7 |
0.147 |
| 2016 |
132.4 |
0.165 |
| 2017 |
126.5 |
0.182 |
| 2018 |
121.7 |
0.199 |
| 2019 |
117.6 |
0.215 |
| 2020 |
114.0 |
0.230 |
| 2021 |
110.9 |
0.244 |
| 2022 |
108.1 |
0.257 |
| 2023 |
105.5 |
0.268 |
| 2024 |
103.1 |
0.277 |
| 2025 |
100.9 |
0.285 |
| 2026 |
98.8 |
0.291 |
| 2027 |
96.7 |
0.295 |
| 2028 |
94.7 |
0.298 |
| 2029 |
92.7 |
0.298 |
| 2030 |
90.7 |
0.297 |
|
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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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