08427+0935 ST 8 AB
08h 42m 44.52s +09° 33' 24.1" P.A. 30.00 sep 1.7 mag 9.70,13.20 Sp M0.5V+M0V dist. 15.43 pc (50.33 l.y.)
| Coord 2000 |
08427+0935 |
|
Discov num |
ST 8 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 42 44.52 +09 33 24.1 |
|
| Date first |
1937 |
|
Date last |
2021 |
|
Obs |
12 |
|
| Pa first |
177 |
|
Pa last |
29.8 |
|
P.A. Now (θ) |
29.8° |
|
| Sep first |
2.0 |
|
Sep last |
1.697 |
|
Sep. Now (ρ) |
1.697" |
|
| Mag pri |
9.70 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
3.5 |
|
Spectral class |
M0.5V+M0V (red/red) |
|
| Pri motion ra |
+224 |
|
Sec motion ra |
+200 |
|
| Pri motion dec |
-632 |
|
Sec motion dec |
-575 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.092 (< 0.3, Physical double)
This double is physical.
08427+0935 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
08 42 45 +09 33 24 |
ST 8 AB |
2021 |
12 |
30 |
1.7 |
9.70 |
13.20 |
3.50 |
Y |
<=== |
| Show |
|
|
08 42 45 +09 33 24 |
LUY 6218 AB,C |
2016 |
16 |
96 |
114.6 |
9.65 |
11.80 |
2.15 |
|
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| Show |
|
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08 42 52 +09 33 11 |
CRC 17 CD |
2013 |
2 |
144 |
5.6 |
8.10 |
|
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Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cancer |
|
HIP |
42748 |
|
Tycho2 |
0810-02829-1 |
|
GL |
Gl 319A |
|
| BD |
BD+10 1857 |
|
Distance |
15.43 |
|
Distance ly |
50.33 |
|
ORBITAL ELEMENTS
| Period (P) | 123.76y | ± 0.5 |
Periastron (T) | 1925.36y | ± 0.62 |
Semi-major axis (a) | 2.664a | ± 0.031 |
| Eccentricity (e) | 0.617 | ± 0.009 |
Inclination (i) | 106.5° | ± 0.8 |
Longitude of periastron (ω) | 260.5° | ± 3.6 |
| Node (Ω) | 180.5° | ± 0.8 |
Notes | n | |
Reference | Msn2021d | |
| Equinox | | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
83.8 |
1.193 |
| 2001 |
80.6 |
1.196 |
| 2002 |
77.4 |
1.202 |
| 2003 |
74.2 |
1.210 |
| 2004 |
71.1 |
1.222 |
| 2005 |
68.0 |
1.236 |
| 2006 |
65.0 |
1.253 |
| 2007 |
62.1 |
1.272 |
| 2008 |
59.3 |
1.293 |
| 2009 |
56.6 |
1.316 |
| 2010 |
54.0 |
1.341 |
| 2011 |
51.5 |
1.367 |
| 2012 |
49.1 |
1.395 |
| 2013 |
46.7 |
1.424 |
| 2014 |
44.5 |
1.454 |
| 2015 |
42.4 |
1.485 |
| 2016 |
40.3 |
1.516 |
| 2017 |
38.4 |
1.548 |
| 2018 |
36.5 |
1.579 |
| 2019 |
34.7 |
1.611 |
| 2020 |
32.9 |
1.642 |
| 2021 |
31.2 |
1.672 |
| 2022 |
29.6 |
1.702 |
| 2023 |
28.0 |
1.730 |
| 2024 |
26.5 |
1.758 |
| 2025 |
25.1 |
1.783 |
| 2026 |
23.6 |
1.807 |
| 2027 |
22.2 |
1.829 |
| 2028 |
20.9 |
1.848 |
| 2029 |
19.5 |
1.865 |
| 2030 |
18.2 |
1.878 |
|
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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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