16289+1825 STF 2052 AB (HD 148653)
16h 28m 52.67s +18° 24' 50.6" P.A. 118.00 sep 2.5 mag 7.69,7.91 Sp K3V+K3V dist. 19.66 pc (64.13 l.y.)
Coord 2000 |
16289+1825 |
|
Discov num |
STF2052 |
|
Comp |
AB |
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Coord arcsec 2000 |
16 28 52.67 +18 24 50.6 |
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Date first |
1822 |
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Date last |
2020 |
|
Obs |
567 |
|
Pa first |
109 |
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Pa last |
117.6 |
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P.A. Now (θ) |
117.1° |
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Sep first |
2.7 |
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Sep last |
2.526 |
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Sep. Now (ρ) |
2.526" |
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Mag pri |
7.69 |
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Mag sec |
7.91 |
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delta mag (ΔM) |
0.22 |
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Spectral class |
K3V+K3V (yellow-orange/yellow-orange) |
|
Pri motion ra |
-349 |
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Sec motion ra |
-324 |
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Pri motion dec |
+383 |
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Sec motion dec |
+383 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.048 (< 0.3, Physical double)
This double is physical.
16289+1825 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 148653 |
102200 |
16 28 53 +18 24 51 |
STF 2052 AB |
2020 |
567 |
118 |
2.5 |
7.69 |
7.91 |
0.22 |
Y |
<=== |
Show |
|
102200 |
16 28 53 +18 24 51 |
STF 2052 AC |
2016 |
6 |
44 |
136.4 |
7.69 |
11.80 |
4.11 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 148653 |
|
Constellation |
Hercules |
|
SAO |
102200 |
|
HIP |
80725 |
|
Tycho2 |
1510-00051-1 |
|
HD |
148653 |
|
GC |
22166 |
|
ADS |
10075 |
|
GL |
Gl 627A |
|
BD |
BD+18 3182 |
|
Distance |
19.66 |
|
Distance ly |
64.13 |
|
ORBITAL ELEMENTS
Period (P) | 229.4999y | ± 9.3543 |
Periastron (T) | 1921.0261y | ± 0.2633 |
Semi-major axis (a) | 2.23051a | ± 0.03738 |
Eccentricity (e) | 0.7581 | ± 0.00521 |
Inclination (i) | 108.336° | ± 0.478 |
Longitude of periastron (ω) | 131.04° | ± 0.952 |
Node (Ω) | 94.285° | ± 0.889 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
124.2 |
2.021 |
2001 |
123.9 |
2.046 |
2002 |
123.5 |
2.070 |
2003 |
123.1 |
2.095 |
2004 |
122.7 |
2.119 |
2005 |
122.4 |
2.143 |
2006 |
122.0 |
2.167 |
2007 |
121.7 |
2.190 |
2008 |
121.4 |
2.213 |
2009 |
121.1 |
2.236 |
2010 |
120.7 |
2.259 |
2011 |
120.4 |
2.281 |
2012 |
120.1 |
2.303 |
2013 |
119.8 |
2.325 |
2014 |
119.5 |
2.346 |
2015 |
119.2 |
2.367 |
2016 |
119.0 |
2.388 |
2017 |
118.7 |
2.409 |
2018 |
118.4 |
2.429 |
2019 |
118.1 |
2.449 |
2020 |
117.9 |
2.469 |
2021 |
117.6 |
2.488 |
2022 |
117.4 |
2.507 |
2023 |
117.1 |
2.526 |
2024 |
116.9 |
2.544 |
2025 |
116.6 |
2.563 |
2026 |
116.4 |
2.580 |
2027 |
116.1 |
2.598 |
2028 |
115.9 |
2.615 |
2029 |
115.7 |
2.632 |
2030 |
115.4 |
2.649 |
|
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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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