01528-0447 RST4188

 
 
01H 52M 45.64S -04 47' 15.9" P.A. 42 SEP 0.35 MAG 9.95,10.02 SP G0
 
 
Coord 2000
01528-0447
Discov num
RST4188
Comp
Coord arcsec 2000
01 52 45.64 -04 47 15.9
Date first
1939
Date last
2014
Obs
23
Pa first
302
Pa last
41
P.A. Now (θ)
42°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.35"
Mag pri
9.95
Mag sec
10.02
delta mag (ΔM)
0.07
Spectral class
G0 (yellow)
Pri motion ra
+010
Sec motion ra
+010
Pri motion dec
-022
Sec motion dec
-022
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
Tycho2
4688-00919-1
HD
11488
last precise pa
40.7
last precise sep
0.378
 
 
ORBITAL ELEMENTS
 
 
Period (P)618.71y Periastron (T)2619.26y Semi-major axis (a)1.048a
Eccentricity (e)0.553 Inclination (i)72.1° Longitude of periastron (ω)10.9°
Node (Ω)22.7° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.463 25.7
2001 0.459 26.4
2002 0.455 27.2
2003 0.451 28.0
2004 0.446 28.8
2005 0.441 29.7
2006 0.436 30.5
2007 0.430 31.4
2008 0.424 32.3
2009 0.417 33.2
2010 0.410 34.2
2011 0.403 35.2
2012 0.395 36.2
2013 0.387 37.2
2014 0.379 38.4
2015 0.371 39.5
2016 0.362 40.7
2017 0.354 42.0
2018 0.345 43.4
2019 0.336 44.8
2020 0.327 46.3
2021 0.318 47.8
2022 0.309 49.5
2023 0.300 51.3
2024 0.291 53.1
2025 0.282 55.1
2026 0.273 57.3
2027 0.265 59.5
2028 0.257 61.9
2029 0.249 64.5
2030 0.241 67.2

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