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 |
|
Discov num |
STF 360 |
|
Comp |
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|
Coord arcsec 2000 |
03 12 09.59 +37 13 03.3 |
|
| Date first |
1828 |
|
Date last |
2022 |
|
Obs |
156 |
|
| Pa first |
147 |
|
Pa last |
124.3 |
|
P.A. Now (θ) |
124.3° |
|
| Sep first |
1.2 |
|
Sep last |
2.98 |
|
Sep. Now (ρ) |
2.98" |
|
| Mag pri |
8.02 |
|
Mag sec |
8.29 |
|
delta mag (ΔM) |
0.27 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-027 |
|
Sec motion ra |
-034 |
|
| Pri motion dec |
-034 |
|
Sec motion dec |
-027 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.228 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 19771 |
|
Constellation |
Perseus |
|
SAO |
56241 |
|
HIP |
14886 |
|
| Tycho2 |
2352-00206-1 |
|
Gaia DR2 |
139281533098990336 |
|
HD |
19771 |
|
GC |
3813 |
|
| ADS |
2390 |
|
BD |
BD+36 650 |
|
Distance |
39.92 |
|
Distance ly |
130.22 |
|
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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