01528-0447 RST 4188 (HD 11488)

 
 
01h 52m 45.64s -04° 47' 15.9" P.A. 42.00 sep 0.4 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 2016 Obs 24
Pa first 302 Pa last 42.2 P.A. Now (θ) 42.2°
Sep first 0.2 Sep last 0.351 Sep. Now (ρ) 0.351"
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
 
 
Name HD 11488 Constellation Cetus SAO 129548 Tycho2 4688-00919-1
Gaia DR2 2491991569041723776 HD 11488
 
 
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° Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 25.7 0.463
2001 26.4 0.459
2002 27.2 0.455
2003 28.0 0.451
2004 28.8 0.446
2005 29.7 0.441
2006 30.5 0.436
2007 31.4 0.430
2008 32.3 0.424
2009 33.2 0.417
2010 34.2 0.410
2011 35.2 0.403
2012 36.2 0.395
2013 37.2 0.387
2014 38.4 0.379
2015 39.5 0.371
2016 40.7 0.362
2017 42.0 0.354
2018 43.4 0.345
2019 44.8 0.336
2020 46.3 0.327
2021 47.8 0.318
2022 49.5 0.309
2023 51.3 0.300
2024 53.1 0.291
2025 55.1 0.282
2026 57.3 0.273
2027 59.5 0.265
2028 61.9 0.257
2029 64.5 0.249
2030 67.2 0.241


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



 
 


wds01528-0447c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic