12283-6146 CPO 12 A,BC (HD 108500)
12h 28m 16.88s -61° 45' 56.5" P.A. 184.00 sep 2.2 mag 7.32,8.24 Sp G3V dist. 48.38 pc (157.82 l.y.)
Coord 2000 |
12283-6146 |
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Discov num |
CPO 12 |
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Comp |
A,BC |
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Coord arcsec 2000 |
12 28 16.88 -61 45 56.5 |
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Date first |
1880 |
|
Date last |
2021 |
|
Obs |
54 |
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Pa first |
271 |
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Pa last |
184.2 |
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P.A. Now (θ) |
184.2° |
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Sep first |
2.4 |
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Sep last |
2.178 |
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Sep. Now (ρ) |
2.178" |
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Mag pri |
7.32 |
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Mag sec |
8.24 |
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delta mag (ΔM) |
0.92 |
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Spectral class |
G3V (yellow) |
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Pri motion ra |
+075 |
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Sec motion ra |
+100 |
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Pri motion dec |
-159 |
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Sec motion dec |
-170 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.138 (< 0.3, Physical double)
This double is physical.
12283-6146 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 108500 |
251919 |
12 28 17 -61 45 56 |
CPO 12 A,BC |
2021 |
54 |
184 |
2.2 |
7.32 |
8.24 |
0.92 |
Y |
<=== |
Show |
|
251919 |
12 28 17 -61 45 56 |
RST 4499 AD |
2016 |
5 |
331 |
7.9 |
7.32 |
13.70 |
6.38 |
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Show |
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12 28 17 -61 45 58 |
RST 4499 BC |
2021 |
24 |
32 |
0.2 |
8.80 |
8.80 |
0.00 |
Y |
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Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 108500 |
|
Constellation |
Crux |
|
SAO |
251919 |
|
HIP |
60845 |
|
Tycho2 |
8975-03266-1 |
|
Gaia DR2 |
6054954738289909632 |
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HD |
108500 |
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GC |
16993 |
|
CP |
CP-61 3204 |
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Distance |
48.38 |
|
Distance ly |
157.82 |
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ORBITAL ELEMENTS
Period (P) | 574.0372y | ± 254.3519 |
Periastron (T) | 2068.4068y | ± 26.2252 |
Semi-major axis (a) | 3.24657a | ± 1.46785 |
Eccentricity (e) | 0.57381 | ± 0.32128 |
Inclination (i) | 117.566° | ± 17.071 |
Longitude of periastron (ω) | 62.414° | ± 25.376 |
Node (Ω) | 167.744° | ± 11.655 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
195.7 |
2.047 |
2001 |
195.1 |
2.048 |
2002 |
194.5 |
2.049 |
2003 |
193.9 |
2.049 |
2004 |
193.3 |
2.049 |
2005 |
192.7 |
2.049 |
2006 |
192.1 |
2.048 |
2007 |
191.5 |
2.047 |
2008 |
190.9 |
2.046 |
2009 |
190.3 |
2.045 |
2010 |
189.7 |
2.044 |
2011 |
189.1 |
2.042 |
2012 |
188.5 |
2.040 |
2013 |
187.9 |
2.037 |
2014 |
187.3 |
2.034 |
2015 |
186.7 |
2.031 |
2016 |
186.1 |
2.028 |
2017 |
185.5 |
2.024 |
2018 |
184.9 |
2.019 |
2019 |
184.3 |
2.014 |
2020 |
183.6 |
2.009 |
2021 |
183.0 |
2.003 |
2022 |
182.4 |
1.997 |
2023 |
181.8 |
1.990 |
2024 |
181.1 |
1.983 |
2025 |
180.5 |
1.975 |
2026 |
179.8 |
1.967 |
2027 |
179.2 |
1.958 |
2028 |
178.5 |
1.948 |
2029 |
177.9 |
1.938 |
2030 |
177.2 |
1.927 |
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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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