10282-2548 FIN 308 AB
10h 28m 10.54s -25° 48' 26.4" P.A. 182.00 sep 0.1 mag 9.14,9.68 Sp G3V dist. 89.13 pc (290.74 l.y.)
Coord 2000 |
10282-2548 |
|
Discov num |
FIN 308 |
|
Comp |
AB |
|
Coord arcsec 2000 |
10 28 10.54 -25 48 26.4 |
|
Date first |
1936 |
|
Date last |
2020 |
|
Obs |
22 |
|
Pa first |
68 |
|
Pa last |
181.8 |
|
P.A. Now (θ) |
195.6° |
|
Sep first |
0.2 |
|
Sep last |
0.103 |
|
Sep. Now (ρ) |
0.125" |
|
Mag pri |
9.14 |
|
Mag sec |
9.68 |
|
delta mag (ΔM) |
0.54 |
|
Spectral class |
G3V (yellow) |
|
Pri motion ra |
-062 |
|
Sec motion ra |
|
|
Pri motion dec |
+028 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
10282-2548 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
178853 |
10 28 11 -25 48 26 |
FIN 308 AB |
2020 |
22 |
182 |
0.1 |
9.14 |
9.68 |
0.54 |
Y |
<=== |
Show |
HD 90737 |
178853 |
10 28 11 -25 48 26 |
B 199 AB,C |
2020 |
24 |
174 |
1.2 |
8.56 |
12.41 |
3.85 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hydra |
|
SAO |
178853 |
|
HIP |
51255 |
|
Tycho2 |
6624-00602-1 |
|
Gaia DR2 |
5469406625417045760 |
|
HD |
90737 |
|
ADS |
7787 |
|
CD |
CD-25 8055 |
|
CP |
CP-25 4584 |
|
Distance |
89.13 |
|
Distance ly |
290.74 |
|
ORBITAL ELEMENTS
Period (P) | 32.76y | ± 2.67 |
Periastron (T) | 2018.13y | ± 1.28 |
Semi-major axis (a) | 0.144a | ± 0.033 |
Eccentricity (e) | 0.739 | ± 0.135 |
Inclination (i) | 48.6° | ± 16.2 |
Longitude of periastron (ω) | 270.6° | ± 2.7 |
Node (Ω) | 155.4° | ± 4.5 |
Notes | n | |
Reference | Tok2015c | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
239.8 |
0.165 |
2001 |
243.5 |
0.165 |
2002 |
247.2 |
0.166 |
2003 |
250.9 |
0.165 |
2004 |
254.7 |
0.165 |
2005 |
258.4 |
0.163 |
2006 |
262.3 |
0.162 |
2007 |
266.2 |
0.159 |
2008 |
270.3 |
0.156 |
2009 |
274.5 |
0.153 |
2010 |
279.0 |
0.148 |
2011 |
283.8 |
0.143 |
2012 |
289.0 |
0.136 |
2013 |
294.8 |
0.128 |
2014 |
301.5 |
0.118 |
2015 |
309.6 |
0.105 |
2016 |
320.6 |
0.087 |
2017 |
339.0 |
0.061 |
2018 |
45.6 |
0.026 |
2019 |
144.4 |
0.053 |
2020 |
167.4 |
0.081 |
2021 |
179.6 |
0.100 |
2022 |
188.5 |
0.114 |
2023 |
195.6 |
0.125 |
2024 |
201.7 |
0.133 |
2025 |
207.1 |
0.140 |
2026 |
212.1 |
0.146 |
2027 |
216.7 |
0.151 |
2028 |
221.1 |
0.154 |
2029 |
225.2 |
0.158 |
2030 |
229.2 |
0.160 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|