10282-2548 FIN 308 AB
10h 28m 10.54s -25° 48' 26.4" P.A. 200.00 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 |
2023 |
|
Obs |
24 |
|
| Pa first |
68 |
|
Pa last |
200.1 |
|
P.A. Now (θ) |
207.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.123 |
|
Sep. Now (ρ) |
0.14" |
|
| 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 |
2023 |
24 |
200 |
0.1 |
9.14 |
9.68 |
0.54 |
Y |
<=== |
| Show |
HD 90737 |
178853 |
10 28 11 -25 48 26 |
B 199 AB,C |
2022 |
24 |
175 |
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) | 32.57y | ± 0.11 |
Periastron (T) | 2018.157y | ± 0.076 |
Semi-major axis (a) | 0.1442a | ± 0.0019 |
| Eccentricity (e) | 0.7375 | ± 0.0051 |
Inclination (i) | 48.2° | ± 1.2 |
Longitude of periastron (ω) | 269.3° | ± 2.8 |
| Node (Ω) | 157.8° | ± 1.9 |
Notes | n | |
Reference | Msn2023 | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
239.8 |
0.166 |
| 2001 |
243.5 |
0.167 |
| 2002 |
247.2 |
0.167 |
| 2003 |
250.9 |
0.167 |
| 2004 |
254.7 |
0.166 |
| 2005 |
258.5 |
0.164 |
| 2006 |
262.4 |
0.162 |
| 2007 |
266.4 |
0.160 |
| 2008 |
270.5 |
0.157 |
| 2009 |
274.8 |
0.153 |
| 2010 |
279.3 |
0.148 |
| 2011 |
284.2 |
0.143 |
| 2012 |
289.5 |
0.136 |
| 2013 |
295.4 |
0.128 |
| 2014 |
302.3 |
0.118 |
| 2015 |
310.5 |
0.105 |
| 2016 |
321.6 |
0.088 |
| 2017 |
340.0 |
0.063 |
| 2018 |
42.5 |
0.027 |
| 2019 |
144.7 |
0.052 |
| 2020 |
168.5 |
0.081 |
| 2021 |
180.9 |
0.101 |
| 2022 |
189.7 |
0.115 |
| 2023 |
196.7 |
0.126 |
| 2024 |
202.8 |
0.135 |
| 2025 |
208.1 |
0.142 |
| 2026 |
213.0 |
0.148 |
| 2027 |
217.6 |
0.153 |
| 2028 |
221.9 |
0.157 |
| 2029 |
226.0 |
0.160 |
| 2030 |
230.0 |
0.163 |
| 2031 |
233.9 |
0.164 |
| 2032 |
237.7 |
0.166 |
| 2033 |
241.4 |
0.167 |
| 2034 |
245.1 |
0.167 |
| 2035 |
248.8 |
0.167 |
| 2036 |
252.5 |
0.166 |
| 2037 |
256.3 |
0.165 |
| 2038 |
260.1 |
0.164 |
| 2039 |
264.1 |
0.161 |
| 2040 |
268.1 |
0.159 |
| 2041 |
272.3 |
0.155 |
| 2042 |
276.7 |
0.151 |
| 2043 |
281.4 |
0.146 |
| 2044 |
286.4 |
0.140 |
| 2045 |
292.0 |
0.133 |
| 2046 |
298.2 |
0.124 |
| 2047 |
305.6 |
0.113 |
| 2048 |
314.8 |
0.099 |
| 2049 |
328.0 |
0.078 |
| 2050 |
354.8 |
0.048 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
