12301-0653 A 2780 Aa,Ab
12h 30m 09.01s -06° 53' 04.7" P.A. 333.00 sep 0.1 mag 10.40,10.40 Sp G0
Coord 2000 |
12301-0653 |
|
Discov num |
A 2780 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
12 30 09.01 -06 53 04.7 |
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Date first |
1914 |
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Date last |
2021 |
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Obs |
13 |
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Pa first |
211 |
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Pa last |
332.5 |
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P.A. Now (θ) |
332.5° |
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Sep first |
0.6 |
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Sep last |
0.084 |
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Sep. Now (ρ) |
0.084" |
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Mag pri |
10.40 |
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Mag sec |
10.40 |
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delta mag (ΔM) |
0 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-069 |
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Sec motion ra |
|
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Pri motion dec |
-022 |
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Sec motion dec |
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Notes |
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Nature of this double is uncertain.
12301-0653 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
138818 |
12 30 09 -06 53 05 |
A 2780 Aa,Ab |
2021 |
13 |
333 |
0.1 |
10.40 |
10.40 |
0.00 |
Y |
<=== |
Show |
|
138818 |
12 30 09 -06 53 05 |
UC 2350 AB |
2016 |
6 |
333 |
49.3 |
9.56 |
15.99 |
6.43 |
|
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Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Virgo |
|
SAO |
138818 |
|
Tycho2 |
4954-00732-1 |
|
Gaia DR2 |
3583445425854537216 |
|
HD |
108808 |
|
ADS |
8574 |
|
ORBITAL ELEMENTS
Period (P) | 297y | |
Periastron (T) | 2018.728y | |
Semi-major axis (a) | 0.494a | |
Eccentricity (e) | 0.932 | |
Inclination (i) | 119.6° | |
Longitude of periastron (ω) | 116.3° | |
Node (Ω) | 174.4° | |
Notes | | |
Reference | Tok2019h | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
194.0 |
0.316 |
2001 |
193.4 |
0.308 |
2002 |
192.9 |
0.298 |
2003 |
192.2 |
0.289 |
2004 |
191.6 |
0.279 |
2005 |
190.9 |
0.268 |
2006 |
190.1 |
0.257 |
2007 |
189.3 |
0.246 |
2008 |
188.4 |
0.234 |
2009 |
187.3 |
0.221 |
2010 |
186.2 |
0.207 |
2011 |
184.8 |
0.193 |
2012 |
183.3 |
0.177 |
2013 |
181.4 |
0.160 |
2014 |
179.1 |
0.141 |
2015 |
175.9 |
0.120 |
2016 |
171.3 |
0.095 |
2017 |
162.9 |
0.065 |
2018 |
135.5 |
0.029 |
2019 |
16.0 |
0.030 |
2020 |
345.4 |
0.055 |
2021 |
331.7 |
0.069 |
2022 |
322.1 |
0.079 |
2023 |
314.5 |
0.088 |
2024 |
308.2 |
0.095 |
2025 |
302.7 |
0.102 |
2026 |
298.0 |
0.109 |
2027 |
293.8 |
0.116 |
2028 |
290.1 |
0.122 |
2029 |
286.7 |
0.129 |
2030 |
283.7 |
0.135 |
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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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