02087-1005 HU   16

 
 
02H 08M 42.29S -10 05' 18.9" P.A. 52.1 SEP 0.66 MAG 9.30,10.53 SP G5
 
 
Coord 2000
02087-1005
Discov num
HU   16
Comp
Coord arcsec 2000
02 08 42.29 -10 05 18.9
Date first
1899
Date last
2013
Obs
20
Pa first
329
Pa last
32
P.A. Now (θ)
52.1°
Sep first
1.1
Sep last
0.9
Sep. Now (ρ)
0.66"
Mag pri
9.30
Mag sec
10.53
delta mag (ΔM)
1.23
Spectral class
G5 (yellow)
Pri motion ra
+152
Sec motion ra
+152
Pri motion dec
-016
Sec motion dec
-016
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
Tycho2
5281-02156-1
HD
13191
ADS
1674
last precise pa
32.3
last precise sep
0.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)475y Periastron (T)2025y Semi-major axis (a)1.32a
Eccentricity (e)0.32 Inclination (i)54.8° Longitude of periastron (ω)69.6°
Node (Ω)10.3° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1997
label rho theta
2000 0.851 30.2
2001 0.840 31.2
2002 0.829 32.2
2003 0.818 33.3
2004 0.806 34.4
2005 0.795 35.5
2006 0.783 36.7
2007 0.772 37.9
2008 0.760 39.1
2009 0.748 40.4
2010 0.736 41.7
2011 0.725 43.0
2012 0.713 44.4
2013 0.701 45.9
2014 0.690 47.4
2015 0.678 48.9
2016 0.667 50.5
2017 0.656 52.1
2018 0.645 53.8
2019 0.634 55.6
2020 0.624 57.4
2021 0.614 59.3
2022 0.604 61.3
2023 0.595 63.3
2024 0.586 65.3
2025 0.577 67.5
2026 0.569 69.7
2027 0.562 71.9
2028 0.555 74.2
2029 0.549 76.6
2030 0.543 79.0

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic