03127+7133 STT 50 AB (HD 19475)
03h 12m 39.10s +71° 33' 20.7" P.A. 145.00 sep 1.0 mag 8.43,8.46 Sp F8 dist. 47.98 pc (156.51 l.y.)
Coord 2000 |
03127+7133 |
|
Discov num |
STT 50 |
|
Comp |
AB |
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Coord arcsec 2000 |
03 12 39.10 +71 33 20.7 |
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Date first |
1843 |
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Date last |
2018 |
|
Obs |
132 |
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Pa first |
236 |
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Pa last |
144.6 |
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P.A. Now (θ) |
144.6° |
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Sep first |
0.9 |
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Sep last |
1.015 |
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Sep. Now (ρ) |
1.015" |
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Mag pri |
8.43 |
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Mag sec |
8.46 |
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delta mag (ΔM) |
0.03 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
+015 |
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Sec motion ra |
+015 |
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Pri motion dec |
+016 |
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Sec motion dec |
+016 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
03127+7133 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
4846 |
03 12 39 +71 33 21 |
SCA 171 Aa,Ab |
2009 |
1 |
27 |
0.4 |
8.43 |
9.10 |
0.67 |
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Show |
HD 19475 |
4846 |
03 12 39 +71 33 21 |
STT 50 AB |
2018 |
132 |
145 |
1.0 |
8.43 |
8.46 |
0.03 |
Y |
<=== |
Show |
|
4846 |
03 12 39 +71 33 21 |
HJ 2172 AC |
2003 |
5 |
298 |
28.2 |
8.43 |
13.90 |
5.47 |
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 19475 |
|
Constellation |
Cassiopeia |
|
SAO |
4846 |
|
HIP |
14944 |
|
Tycho2 |
4334-00871-1 |
|
Gaia DR2 |
543889717491144704 |
|
HD |
19475 |
|
ADS |
2377 |
|
BD |
BD+70 230 |
|
Distance |
47.98 |
|
Distance ly |
156.51 |
|
ORBITAL ELEMENTS
Period (P) | 309y | |
Periastron (T) | 2087y | |
Semi-major axis (a) | 1.02a | |
Eccentricity (e) | 0.4 | |
Inclination (i) | 135.9° | |
Longitude of periastron (ω) | 5.6° | |
Node (Ω) | 14.3° | |
Notes | n | |
Reference | Sca2012b | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
157.4 |
1.063 |
2001 |
156.7 |
1.054 |
2002 |
156.0 |
1.044 |
2003 |
155.3 |
1.035 |
2004 |
154.5 |
1.025 |
2005 |
153.7 |
1.015 |
2006 |
153.0 |
1.005 |
2007 |
152.2 |
0.995 |
2008 |
151.3 |
0.985 |
2009 |
150.5 |
0.975 |
2010 |
149.7 |
0.964 |
2011 |
148.8 |
0.954 |
2012 |
147.9 |
0.944 |
2013 |
147.0 |
0.934 |
2014 |
146.1 |
0.923 |
2015 |
145.1 |
0.913 |
2016 |
144.2 |
0.902 |
2017 |
143.2 |
0.892 |
2018 |
142.2 |
0.882 |
2019 |
141.1 |
0.871 |
2020 |
140.1 |
0.861 |
2021 |
139.0 |
0.850 |
2022 |
137.8 |
0.840 |
2023 |
136.7 |
0.830 |
2024 |
135.5 |
0.819 |
2025 |
134.3 |
0.809 |
2026 |
133.1 |
0.799 |
2027 |
131.8 |
0.789 |
2028 |
130.5 |
0.779 |
2029 |
129.2 |
0.769 |
2030 |
127.8 |
0.759 |
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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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