00277-1625 YR 1 Aa,Ab
00h 27m 40.29s -16° 24' 34.3" P.A. 300.00 sep 0.1 mag 7.51,8.72 Sp F4V+G1V dist. 74.68 pc (243.61 l.y.)
Coord 2000 |
00277-1625 |
|
Discov num |
YR 1 |
|
Comp |
Aa,Ab |
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Coord arcsec 2000 |
00 27 40.29 -16 24 34.3 |
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Date first |
1997 |
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Date last |
2021 |
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Obs |
15 |
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Pa first |
165 |
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Pa last |
299.6 |
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P.A. Now (θ) |
299.6° |
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Sep first |
0.1 |
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Sep last |
0.056 |
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Sep. Now (ρ) |
0.056" |
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Mag pri |
7.51 |
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Mag sec |
8.72 |
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delta mag (ΔM) |
1.21 |
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Spectral class |
F4V+G1V (yellow-white/yellow) |
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Pri motion ra |
+207 |
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Sec motion ra |
|
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Pri motion dec |
+033 |
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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.
00277-1625 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
147286 |
00 27 40 -16 24 34 |
YR 1 Aa,Ab |
2021 |
15 |
300 |
0.1 |
7.51 |
8.72 |
1.21 |
Y |
<=== |
Show |
HD 2394 |
147286 |
00 27 40 -16 24 34 |
HJ 1968 AB |
2015 |
53 |
234 |
37.0 |
7.26 |
10.03 |
2.77 |
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|
Show |
|
147286 |
00 27 40 -16 24 34 |
BU 1343 AC |
2015 |
15 |
135 |
77.1 |
7.26 |
12.58 |
5.32 |
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cetus |
|
SAO |
147286 |
|
HIP |
2190 |
|
Tycho2 |
5840-01011-1 |
|
Gaia DR2 |
2367706726008993152 |
|
HD |
2394 |
|
BD |
BD-17 61 |
|
Distance |
74.68 |
|
Distance ly |
243.61 |
|
ORBITAL ELEMENTS
Period (P) | 13.35y | ± 0.15 |
Periastron (T) | 2014.41y | ± 0.54 |
Semi-major axis (a) | 0.1208a | ± 0.002 |
Eccentricity (e) | 0.024 | ± 0.019 |
Inclination (i) | 69.6° | ± 0.9 |
Longitude of periastron (ω) | 270.3° | ± 4.8 |
Node (Ω) | 167.8° | ± 0.8 |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
19.3 |
0.069 |
2001 |
73.8 |
0.041 |
2002 |
133.3 |
0.065 |
2003 |
154.0 |
0.100 |
2004 |
165.1 |
0.119 |
2005 |
174.7 |
0.116 |
2006 |
187.3 |
0.091 |
2007 |
213.8 |
0.057 |
2008 |
277.5 |
0.045 |
2009 |
319.5 |
0.076 |
2010 |
336.0 |
0.107 |
2011 |
346.3 |
0.121 |
2012 |
356.1 |
0.111 |
2013 |
10.8 |
0.082 |
2014 |
48.0 |
0.046 |
2015 |
119.0 |
0.052 |
2016 |
148.6 |
0.089 |
2017 |
161.6 |
0.115 |
2018 |
171.3 |
0.120 |
2019 |
182.2 |
0.102 |
2020 |
201.4 |
0.069 |
2021 |
252.4 |
0.043 |
2022 |
309.6 |
0.064 |
2023 |
331.4 |
0.098 |
2024 |
342.9 |
0.118 |
2025 |
352.5 |
0.117 |
2026 |
4.5 |
0.094 |
2027 |
29.8 |
0.057 |
2028 |
97.4 |
0.043 |
2029 |
141.6 |
0.076 |
2030 |
157.8 |
0.108 |
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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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