04353+2254 KSA 108

 
 
04h 35m 20.90s +22 54' 24.2" P.A. 11.60 sep 0.1 mag 9.00,10.00 Sp K7
 
 
Coord 2000
04353+2254
Discov num
KSA 108
Comp
Coord arcsec 2000
04 35 20.90 +22 54 24.2
Date first
2007
Date last
2015
Obs
13
Pa first
356
Pa last
47
P.A. Now (θ)
11.6°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0.05"
Mag pri
9.00
Mag sec
10.00
delta mag (ΔM)
1
Spectral class
K7 (yellow-orange)
Pri motion ra
+010
Sec motion ra
Pri motion dec
-015
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.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
47
Precise sep
0.041
Constellation
Hydra
Gaia DR2
145213875069914496
last precise pa
47
last precise sep
0.041
 
 
ORBITAL ELEMENTS
 
 
Period (P)5393.5d (14.77y)± 66.8 Periastron (T)55168.6d (2009.922y)± 5.7 Semi-major axis (a)38.85m± 0.49
Eccentricity (e)0.634± 0.004 Inclination (i)124.9°± 0.5 Longitude of periastron (ω)305.2°± 0.3
Node (Ω)176.8°± 0.4 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 0.036 59.9
2001 0.041 48.8
2002 0.045 40.0
2003 0.049 32.6
2004 0.051 26.0
2005 0.051 19.7
2006 0.049 13.2
2007 0.045 5.9
2008 0.036 355.9
2009 0.020 334.7
2010 0.012 205.6
2011 0.021 149.1
2012 0.023 116.2
2013 0.027 90.1
2014 0.032 71.0
2015 0.037 57.1
2016 0.042 46.6
2017 0.046 38.1
2018 0.049 31.0
2019 0.051 24.5
2020 0.051 18.2
2021 0.048 11.6
2022 0.043 3.9
2023 0.033 352.7
2024 0.016 322.8
2025 0.015 184.9
2026 0.022 140.8
2027 0.024 109.5
2028 0.028 85.1
2029 0.033 67.3
2030 0.038 54.4


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



 
 


wds04353%2B2254a.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
04353+2254 KSA 108 2007 1 356 0.0 9.00 10.00 K7 N K 043520.90+225424.2
04353+2254 KSA 108 2015 13 47 0.0 9.00 10.00 K7 NO K 043520.90+225424.2

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