04188+2820 KSA 104 AB
04h 18m 47.04s +28° 20' 07.3" P.A. 121.00 sep 0.0 mag 7.90,8.30 Sp K7
| Coord 2000 |
04188+2820 |
|
Discov num |
KSA 104 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 18 47.04 +28 20 07.3 |
|
| Date first |
2007 |
|
Date last |
2016 |
|
Obs |
17 |
|
| Pa first |
106 |
|
Pa last |
121.2 |
|
P.A. Now (θ) |
174.2° |
|
| Sep first |
0.0 |
|
Sep last |
0.035 |
|
Sep. Now (ρ) |
0.065" |
|
| Mag pri |
7.90 |
|
Mag sec |
8.30 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
K7 (yellow-orange) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
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| Pri motion dec |
-023 |
|
Sec motion dec |
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| Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
04188+2820 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
04 18 47 +28 20 07 |
KSA 104 AB |
2016 |
17 |
121 |
0.0 |
7.90 |
8.30 |
0.40 |
Y |
<=== |
| Show |
|
|
04 18 47 +28 20 07 |
ITO 19 AC |
2003 |
1 |
234 |
5.7 |
7.64 |
19.90 |
12.26 |
|
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| Show |
|
|
04 18 47 +28 20 07 |
ITO 19 AD |
2003 |
1 |
138 |
5.3 |
7.64 |
19.24 |
11.60 |
|
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Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
Gaia DR2 |
164513538249595136 |
|
ORBITAL ELEMENTS
| Period (P) | 3392d (9.289999999999999y) | ± 1.3 |
Periastron (T) | 54703d (2008.648y) | ± 0.7 |
Semi-major axis (a) | 41.64m | ± 0.06 |
| Eccentricity (e) | 0.68 | ± 0.001 |
Inclination (i) | 159.2° | ± 0.3 |
Longitude of periastron (ω) | 68.4° | ± 0.7 |
| Node (Ω) | 65.7° | ± 0.8 |
Notes | n | |
Reference | Riz2020 | |
| Equinox | | |
Last observation | 2016 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
253.5 |
0.026 |
| 2001-01-01 |
218.0 |
0.047 |
| 2002-01-01 |
201.5 |
0.058 |
| 2003-01-01 |
189.4 |
0.064 |
| 2004-01-01 |
178.7 |
0.066 |
| 2005-01-01 |
167.8 |
0.063 |
| 2006-01-01 |
155.1 |
0.057 |
| 2007-01-01 |
137.2 |
0.045 |
| 2008-01-01 |
99.4 |
0.026 |
| 2009-01-01 |
280.2 |
0.019 |
| 2010-01-01 |
224.8 |
0.042 |
| 2011-01-01 |
205.5 |
0.056 |
| 2012-01-01 |
192.6 |
0.063 |
| 2013-01-01 |
181.7 |
0.066 |
| 2014-01-01 |
171.0 |
0.065 |
| 2015-01-01 |
159.1 |
0.059 |
| 2016-01-01 |
143.3 |
0.049 |
| 2017-01-01 |
114.9 |
0.032 |
| 2018-01-01 |
339.8 |
0.013 |
| 2019-01-01 |
233.4 |
0.036 |
| 2020-01-01 |
210.1 |
0.052 |
| 2021-01-01 |
196.0 |
0.062 |
| 2022-01-01 |
184.8 |
0.066 |
| 2023-01-01 |
174.2 |
0.065 |
| 2024-01-01 |
162.8 |
0.061 |
| 2025-01-01 |
148.5 |
0.052 |
| 2026-01-01 |
125.7 |
0.038 |
| 2027-01-01 |
52.4 |
0.016 |
| 2028-01-01 |
245.5 |
0.030 |
| 2029-01-01 |
215.2 |
0.049 |
| 2030-01-01 |
199.6 |
0.060 |
|
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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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