10474+0236 HDS 1542 AB
10h 47m 24.29s +02° 35' 32.0" P.A. 82.00 sep 0.5 mag 12.91,13.20 Sp M1 dist. 41.96 pc (136.87 l.y.)
| Coord 2000 |
10474+0236 |
|
Discov num |
HDS1542 |
|
Comp |
AB |
|
Coord arcsec 2000 |
10 47 24.29 +02 35 32.0 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
11 |
|
| Pa first |
219 |
|
Pa last |
81.7 |
|
P.A. Now (θ) |
81.7° |
|
| Sep first |
0.4 |
|
Sep last |
0.489 |
|
Sep. Now (ρ) |
0.489" |
|
| Mag pri |
12.91 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
0.29 |
|
Spectral class |
M1 (red) |
|
| Pri motion ra |
+180 |
|
Sec motion ra |
|
|
| Pri motion dec |
+030 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
10474+0236 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
10 47 24 +02 35 32 |
HDS 1542 AB |
2021 |
11 |
82 |
0.5 |
12.91 |
13.20 |
0.29 |
Y |
<=== |
| Show |
|
|
10 47 24 +02 35 32 |
TOK 542 AC |
2015 |
7 |
226 |
756.0 |
12.28 |
14.84 |
2.56 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sextans |
|
HIP |
52774 |
|
Gaia DR2 |
3809351492919091968 |
|
Distance |
41.96 |
|
| Distance ly |
136.87 |
|
ORBITAL ELEMENTS
| Period (P) | 121.7y | ± 8.2 |
Periastron (T) | 2100.6y | ± 8.2 |
Semi-major axis (a) | 0.518a | ± 0.031 |
| Eccentricity (e) | 0.412 | ± 0.069 |
Inclination (i) | 60.5° | ± 2.7 |
Longitude of periastron (ω) | 250.4° | ± 6.8 |
| Node (Ω) | 235° | ± 3.4 |
Notes | | |
Reference | Hor2020 | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
235.5 |
0.503 |
| 2001 |
236.9 |
0.513 |
| 2002 |
238.2 |
0.523 |
| 2003 |
239.5 |
0.531 |
| 2004 |
240.7 |
0.538 |
| 2005 |
241.9 |
0.544 |
| 2006 |
243.1 |
0.550 |
| 2007 |
244.3 |
0.554 |
| 2008 |
245.5 |
0.558 |
| 2009 |
246.6 |
0.560 |
| 2010 |
247.7 |
0.562 |
| 2011 |
248.8 |
0.564 |
| 2012 |
250.0 |
0.564 |
| 2013 |
251.1 |
0.564 |
| 2014 |
252.2 |
0.563 |
| 2015 |
253.3 |
0.562 |
| 2016 |
254.5 |
0.560 |
| 2017 |
255.6 |
0.558 |
| 2018 |
256.7 |
0.555 |
| 2019 |
257.9 |
0.552 |
| 2020 |
259.1 |
0.548 |
| 2021 |
260.3 |
0.543 |
| 2022 |
261.5 |
0.539 |
| 2023 |
262.7 |
0.534 |
| 2024 |
264.0 |
0.528 |
| 2025 |
265.3 |
0.523 |
| 2026 |
266.6 |
0.517 |
| 2027 |
268.0 |
0.510 |
| 2028 |
269.3 |
0.504 |
| 2029 |
270.8 |
0.497 |
| 2030 |
272.2 |
0.490 |
|
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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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