04187+2819 SKW 2 Aa,Ab
04h 18m 40.60s +28° 19' 16.7" P.A. 61.00 sep 0.1 mag 16.00,16.00
| Coord 2000 |
04187+2819 |
|
Discov num |
SKW 2 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
04 18 40.60 +28 19 16.7 |
|
| Date first |
1996 |
|
Date last |
2011 |
|
Obs |
4 |
|
| Pa first |
54 |
|
Pa last |
61 |
|
P.A. Now (θ) |
61° |
|
| Sep first |
0.1 |
|
Sep last |
0.061 |
|
Sep. Now (ρ) |
0.061" |
|
| Mag pri |
16.00 |
|
Mag sec |
16.00 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
|
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-031 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
04187+2819 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
04 18 41 +28 19 17 |
SKW 2 Aa,Ab |
2011 |
4 |
61 |
0.1 |
16.00 |
16.00 |
0.00 |
Y |
<=== |
| Show |
|
|
04 18 41 +28 19 17 |
SKN 1 AB |
2015 |
4 |
23 |
4.0 |
15.30 |
19.30 |
4.00 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
Gaia DR2 |
164513602672978304 |
|
ORBITAL ELEMENTS
| Period (P) | 13.8y | ± 1.5 |
Periastron (T) | 55480d (2010.775y) | ± 900 |
Semi-major axis (a) | 72.4m | ± 6.3 |
| Eccentricity (e) | 0.12 | ± 0.05 |
Inclination (i) | 60.6° | ± 3.8 |
Longitude of periastron (ω) | 233° | ± 42 |
| Node (Ω) | 28° | ± 5 |
Notes | n | |
Reference | Mnr2008 | |
| Equinox | | |
Last observation | 2004 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
9.5 |
0.063 |
| 2001 |
23.4 |
0.075 |
| 2002 |
34.7 |
0.077 |
| 2003 |
46.9 |
0.070 |
| 2004 |
63.6 |
0.056 |
| 2005 |
91.8 |
0.043 |
| 2006 |
134.1 |
0.039 |
| 2007 |
169.1 |
0.050 |
| 2008 |
190.3 |
0.062 |
| 2009 |
205.9 |
0.067 |
| 2010 |
222.2 |
0.059 |
| 2011 |
249.0 |
0.042 |
| 2012 |
304.6 |
0.032 |
| 2013 |
351.6 |
0.047 |
| 2014 |
12.7 |
0.066 |
| 2015 |
25.7 |
0.076 |
| 2016 |
37.0 |
0.076 |
| 2017 |
49.7 |
0.068 |
| 2018 |
68.0 |
0.053 |
| 2019 |
99.4 |
0.041 |
| 2020 |
142.4 |
0.041 |
| 2021 |
174.2 |
0.053 |
| 2022 |
193.7 |
0.064 |
| 2023 |
208.9 |
0.066 |
| 2024 |
226.2 |
0.056 |
| 2025 |
257.4 |
0.038 |
| 2026 |
316.9 |
0.034 |
| 2027 |
357.1 |
0.051 |
| 2028 |
15.7 |
0.069 |
| 2029 |
28.0 |
0.077 |
| 2030 |
39.3 |
0.075 |
|
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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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