04188+2820 KSA 104AB

 
 
04h 18m 47.04s +28 20' 07.3" P.A. 196.00 sep 0.1 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
P.A. Now (θ)
196°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0.06"
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
Pri motion dec
-023
Sec motion dec
Notes
N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star
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 17 196 0.1 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
Show 04 18 47 +28 20 07 ITO 19 AD 2003 1 138 5.3 7.64 19.24 11.60
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
121.2
Precise sep
0.035
Constellation
Taurus
Gaia DR2
164513538249595136
last precise pa
121.2
last precise sep
0.035
 
 
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 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation2016
label rho theta
2000 0.026 253.5
2001 0.047 218.0
2002 0.058 201.5
2003 0.064 189.4
2004 0.066 178.7
2005 0.063 167.8
2006 0.057 155.1
2007 0.045 137.2
2008 0.026 99.4
2009 0.019 280.2
2010 0.042 224.8
2011 0.056 205.5
2012 0.063 192.6
2013 0.066 181.7
2014 0.065 171.0
2015 0.059 159.1
2016 0.049 143.3
2017 0.032 114.9
2018 0.013 339.8
2019 0.036 233.4
2020 0.052 210.1
2021 0.062 196.0
2022 0.066 184.8
2023 0.065 174.2
2024 0.061 162.8
2025 0.052 148.5
2026 0.038 125.7
2027 0.016 52.4
2028 0.030 245.5
2029 0.049 215.2
2030 0.060 199.6


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds04188%2B2820a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04188+2820 KSA 104 AB 2007 1 106 0.0 7.90 8.30 K7 N K 041847.04+282007.3
04188+2820 KSA 104 AB 2016 17 121 0.0 7.90 8.30 K7 NO K 041847.04+282007.3

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