03122+3713 STF 360 (HD 19771)
03h 12m 09.59s +37° 13' 03.3" P.A. 124.00 sep 3.0 mag 8.02,8.29 Sp G0 dist. 39.92 pc (130.22 l.y.)
Coord 2000 |
03122+3713 |
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Discov num |
STF 360 |
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Comp |
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Coord arcsec 2000 |
03 12 09.59 +37 13 03.3 |
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Date first |
1828 |
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Date last |
2022 |
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Obs |
156 |
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Pa first |
147 |
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Pa last |
124.3 |
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P.A. Now (θ) |
124.3° |
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Sep first |
1.2 |
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Sep last |
2.98 |
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Sep. Now (ρ) |
2.98" |
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Mag pri |
8.02 |
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Mag sec |
8.29 |
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delta mag (ΔM) |
0.27 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-027 |
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Sec motion ra |
-034 |
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Pri motion dec |
-034 |
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Sec motion dec |
-027 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.228 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 19771 |
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Constellation |
Perseus |
|
SAO |
56241 |
|
HIP |
14886 |
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Tycho2 |
2352-00206-1 |
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Gaia DR2 |
139281533098990336 |
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HD |
19771 |
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GC |
3813 |
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ADS |
2390 |
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BD |
BD+36 650 |
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Distance |
39.92 |
|
Distance ly |
130.22 |
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ORBITAL ELEMENTS
Period (P) | 1500y | |
Periastron (T) | 1230.7y | ± 300 |
Semi-major axis (a) | 3.7a | |
Eccentricity (e) | 0.375 | ± 0.262 |
Inclination (i) | 100.4° | ± 1.8 |
Longitude of periastron (ω) | 119.4° | ± 39 |
Node (Ω) | 109.8° | ± 5.7 |
Notes | n | |
Reference | Tok2020i | |
Equinox | | |
Last observation | 2017 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
126.1 |
2.782 |
2001 |
126.0 |
2.790 |
2002 |
126.0 |
2.798 |
2003 |
125.9 |
2.806 |
2004 |
125.8 |
2.814 |
2005 |
125.8 |
2.822 |
2006 |
125.7 |
2.830 |
2007 |
125.6 |
2.838 |
2008 |
125.6 |
2.846 |
2009 |
125.5 |
2.854 |
2010 |
125.4 |
2.862 |
2011 |
125.4 |
2.870 |
2012 |
125.3 |
2.878 |
2013 |
125.2 |
2.886 |
2014 |
125.2 |
2.894 |
2015 |
125.1 |
2.902 |
2016 |
125.0 |
2.910 |
2017 |
125.0 |
2.918 |
2018 |
124.9 |
2.926 |
2019 |
124.8 |
2.934 |
2020 |
124.8 |
2.941 |
2021 |
124.7 |
2.949 |
2022 |
124.6 |
2.957 |
2023 |
124.6 |
2.965 |
2024 |
124.5 |
2.973 |
2025 |
124.5 |
2.980 |
2026 |
124.4 |
2.988 |
2027 |
124.3 |
2.996 |
2028 |
124.3 |
3.003 |
2029 |
124.2 |
3.011 |
2030 |
124.1 |
3.019 |
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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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