16128+3922 STF 2028 (HD 146100)
16h 12m 48.11s +39° 21' 35.6" P.A. 147.00 sep 0.5 mag 9.88,9.14 Sp G0 dist. 67.2 pc (219.21 l.y.)
Coord 2000 |
16128+3922 |
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Discov num |
STF2028 |
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Comp |
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Coord arcsec 2000 |
16 12 48.11 +39 21 35.6 |
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Date first |
1906 |
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Date last |
2016 |
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Obs |
60 |
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Pa first |
147 |
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Pa last |
146.5 |
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P.A. Now (θ) |
147.5° |
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Sep first |
0.5 |
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Sep last |
0.491 |
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Sep. Now (ρ) |
0.528" |
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Mag pri |
9.88 |
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Mag sec |
9.14 |
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delta mag (ΔM) |
0.74 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-256 |
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Sec motion ra |
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Pri motion dec |
+279 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 146100 |
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Constellation |
Corona Borealis |
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SAO |
65149 |
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HIP |
79448 |
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Tycho2 |
3061-01469-1 |
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HD |
146100 |
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GC |
21827 |
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ADS |
9970 |
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BD |
BD+39 2963 |
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Distance |
67.2 |
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Distance ly |
219.21 |
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ORBITAL ELEMENTS
Period (P) | 105.34y | |
Periastron (T) | 1993.38y | |
Semi-major axis (a) | 0.399a | |
Eccentricity (e) | 0.616 | |
Inclination (i) | 83.6° | |
Longitude of periastron (ω) | 223.7° | |
Node (Ω) | 145.5° | |
Notes | n | |
Reference | Hrt2014b | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
138.0 |
0.156 |
2001 |
139.6 |
0.191 |
2002 |
140.8 |
0.223 |
2003 |
141.6 |
0.252 |
2004 |
142.3 |
0.279 |
2005 |
142.9 |
0.305 |
2006 |
143.3 |
0.328 |
2007 |
143.7 |
0.350 |
2008 |
144.1 |
0.370 |
2009 |
144.5 |
0.388 |
2010 |
144.8 |
0.405 |
2011 |
145.0 |
0.421 |
2012 |
145.3 |
0.435 |
2013 |
145.5 |
0.449 |
2014 |
145.8 |
0.461 |
2015 |
146.0 |
0.472 |
2016 |
146.2 |
0.482 |
2017 |
146.4 |
0.491 |
2018 |
146.6 |
0.499 |
2019 |
146.8 |
0.506 |
2020 |
147.0 |
0.513 |
2021 |
147.1 |
0.519 |
2022 |
147.3 |
0.524 |
2023 |
147.5 |
0.528 |
2024 |
147.7 |
0.531 |
2025 |
147.8 |
0.534 |
2026 |
148.0 |
0.537 |
2027 |
148.2 |
0.538 |
2028 |
148.3 |
0.539 |
2029 |
148.5 |
0.539 |
2030 |
148.7 |
0.539 |
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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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