05315+5439 STF 711 AB (HD 35961)
05h 31m 28.89s +54° 39' 15.8" P.A. 226.00 sep 7.3 mag 7.78,9.67 Sp G1+K2 dist. 39.31 pc (128.23 l.y.)
| Coord 2000 |
05315+5439 |
|
Discov num |
STF 711 |
|
Comp |
AB |
|
Coord arcsec 2000 |
05 31 28.89 +54 39 15.8 |
|
| Date first |
1830 |
|
Date last |
2020 |
|
Obs |
52 |
|
| Pa first |
234 |
|
Pa last |
225.8 |
|
P.A. Now (θ) |
225.8° |
|
| Sep first |
9.0 |
|
Sep last |
7.349 |
|
Sep. Now (ρ) |
7.349" |
|
| Mag pri |
7.78 |
|
Mag sec |
9.67 |
|
delta mag (ΔM) |
1.89 |
|
Spectral class |
G1+K2 (yellow/yellow-orange) |
|
| Pri motion ra |
-143 |
|
Sec motion ra |
-123 |
|
| Pri motion dec |
-354 |
|
Sec motion dec |
-360 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.055 (< 0.3, Physical double)
This double is physical.
05315+5439 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 35961 |
25232 |
05 31 29 +54 39 16 |
STF 711 AB |
2020 |
52 |
226 |
7.3 |
7.78 |
9.67 |
1.89 |
Y |
<=== |
| Show |
|
25232 |
05 31 29 +54 39 16 |
STF 711 AC |
2003 |
5 |
254 |
174.9 |
7.78 |
11.02 |
3.24 |
|
|
| Show |
|
|
05 31 28 +54 39 10 |
STF 711 BC |
2003 |
7 |
255 |
168.4 |
9.67 |
11.02 |
1.35 |
|
|
| Show |
|
|
05 31 10 +54 38 27 |
STF 711 Ca,Cb |
1980 |
2 |
182 |
0.6 |
11.70 |
11.90 |
0.20 |
|
|
| Show |
|
|
05 31 10 +54 38 27 |
STF 711 CD |
2015 |
7 |
307 |
15.6 |
11.02 |
13.86 |
2.84 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 35961 |
|
Constellation |
Auriga |
|
SAO |
25232 |
|
HIP |
25880 |
|
| Tycho2 |
3752-00526-1 |
|
Gaia DR2 |
267971809987544064 |
|
HD |
35961 |
|
GC |
6802 |
|
| ADS |
4099 |
|
BD |
BD+54 902 |
|
Distance |
39.31 |
|
Distance ly |
128.23 |
|
ORBITAL ELEMENTS
| Period (P) | 2614.4776y | ± 1348.6669 |
Periastron (T) | 1483.6287y | ± 865.4406 |
Semi-major axis (a) | 17.36056a | ± 8.93567 |
| Eccentricity (e) | 0.7374 | ± 0.19064 |
Inclination (i) | 99.876° | ± 17.093 |
Longitude of periastron (ω) | 101.865° | ± 31.211 |
| Node (Ω) | 72.472° | ± 33.252 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
225.0 |
7.720 |
| 2001 |
224.9 |
7.710 |
| 2002 |
224.8 |
7.700 |
| 2003 |
224.7 |
7.690 |
| 2004 |
224.7 |
7.679 |
| 2005 |
224.6 |
7.669 |
| 2006 |
224.5 |
7.659 |
| 2007 |
224.4 |
7.648 |
| 2008 |
224.3 |
7.638 |
| 2009 |
224.3 |
7.628 |
| 2010 |
224.2 |
7.618 |
| 2011 |
224.1 |
7.607 |
| 2012 |
224.0 |
7.597 |
| 2013 |
223.9 |
7.587 |
| 2014 |
223.8 |
7.576 |
| 2015 |
223.8 |
7.566 |
| 2016 |
223.7 |
7.556 |
| 2017 |
223.6 |
7.546 |
| 2018 |
223.5 |
7.535 |
| 2019 |
223.4 |
7.525 |
| 2020 |
223.3 |
7.515 |
| 2021 |
223.2 |
7.504 |
| 2022 |
223.2 |
7.494 |
| 2023 |
223.1 |
7.484 |
| 2024 |
223.0 |
7.473 |
| 2025 |
222.9 |
7.463 |
| 2026 |
222.8 |
7.452 |
| 2027 |
222.7 |
7.442 |
| 2028 |
222.6 |
7.432 |
| 2029 |
222.6 |
7.421 |
| 2030 |
222.5 |
7.411 |
|
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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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