12444+2200 HDS 1783 (HD 110789)
12h 44m 22.61s +21° 59' 36.5" P.A. 112.00 sep 0.3 mag 7.76,10.96 Sp F6V dist. 62.7 pc (204.53 l.y.)
Coord 2000 |
12444+2200 |
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Discov num |
HDS1783 |
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Comp |
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Coord arcsec 2000 |
12 44 22.61 +21 59 36.5 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
13 |
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Pa first |
214 |
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Pa last |
111.9 |
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P.A. Now (θ) |
111.9° |
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Sep first |
0.2 |
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Sep last |
0.313 |
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Sep. Now (ρ) |
0.313" |
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Mag pri |
7.76 |
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Mag sec |
10.96 |
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delta mag (ΔM) |
3.2 |
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Spectral class |
F6V (yellow-white) |
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Pri motion ra |
-127 |
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Sec motion ra |
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Pri motion dec |
-194 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 110789 |
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Constellation |
Coma Berenices |
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SAO |
82466 |
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HIP |
62162 |
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Tycho2 |
1448-01494-1 |
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Gaia DR2 |
3955472984773776256 |
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HD |
110789 |
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GC |
17324 |
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BD |
BD+22 2506 |
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Distance |
62.7 |
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Distance ly |
204.53 |
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ORBITAL ELEMENTS
Period (P) | 187y | ± 20.4 |
Periastron (T) | 2014.49y | ± 0.04 |
Semi-major axis (a) | 0.677a | ± 0.047 |
Eccentricity (e) | 0.879 | ± 0.009 |
Inclination (i) | 70.3° | ± 70.3 |
Longitude of periastron (ω) | 250.3° | ± 0.8 |
Node (Ω) | 105.3° | ± 0.5 |
Notes | | |
Reference | Tok2021f | |
Equinox | | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
235.1 |
0.229 |
2001 |
237.9 |
0.227 |
2002 |
240.7 |
0.224 |
2003 |
243.6 |
0.221 |
2004 |
246.5 |
0.217 |
2005 |
249.6 |
0.214 |
2006 |
252.7 |
0.210 |
2007 |
256.0 |
0.205 |
2008 |
259.5 |
0.199 |
2009 |
263.2 |
0.192 |
2010 |
267.2 |
0.183 |
2011 |
271.8 |
0.169 |
2012 |
277.3 |
0.150 |
2013 |
285.1 |
0.120 |
2014 |
301.5 |
0.069 |
2015 |
44.9 |
0.033 |
2016 |
90.5 |
0.098 |
2017 |
99.6 |
0.156 |
2018 |
104.1 |
0.203 |
2019 |
106.9 |
0.242 |
2020 |
109.1 |
0.275 |
2021 |
110.8 |
0.304 |
2022 |
112.2 |
0.330 |
2023 |
113.4 |
0.353 |
2024 |
114.5 |
0.374 |
2025 |
115.4 |
0.394 |
2026 |
116.3 |
0.412 |
2027 |
117.1 |
0.428 |
2028 |
117.8 |
0.443 |
2029 |
118.5 |
0.458 |
2030 |
119.2 |
0.471 |
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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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