01409+4952 HU  531AB

 
 
01H 40M 52.28S +49 52' 29.9" P.A. 349.5 SEP 0.46 MAG 9.50,10.00 SP K1V DIST. 89.85 PC (293.09 L.Y.)
 
 
Coord 2000
01409+4952
Discov num
HU  531
Comp
AB
Coord arcsec 2000
01 40 52.28 +49 52 29.9
Date first
1902
Date last
2016
Obs
23
Pa first
4
Pa last
352
P.A. Now (θ)
349.5°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.46"
Mag pri
9.50
Mag sec
10.00
delta mag (ΔM)
0.5
Spectral class
K1V (yellow-orange)
Pri motion ra
+054
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
01409+4952 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 01409+4952 HU 531 AB 1902 2016 23 350 0.5 9.50 10.00 0.50 Y <===
Show 01409+4952 HU 531 AB,C 1902 2015 27 280 6.1 9.84 10.02 0.18
Show 01409+4952 HU 531 BC 1991 2016 5 281 6.2 9.84 10.02 0.18
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
HIP
7841
Tycho2
3286-02300-1
ADS
1315
BD
BD+49 435
Distance
89.85
Distance ly
293.09
last precise pa
351.5
last precise sep
0.45
 
 
ORBITAL ELEMENTS
 
 
Period (P)100.03y Periastron (T)1956.23y Semi-major axis (a)0.317a
Eccentricity (e)0.512 Inclination (i)127.6° Longitude of periastron (ω)332.1°
Node (Ω)161.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.418 5.7
2001 0.423 4.7
2002 0.428 3.6
2003 0.433 2.6
2004 0.437 1.6
2005 0.441 0.6
2006 0.444 359.6
2007 0.447 358.7
2008 0.450 357.7
2009 0.452 356.8
2010 0.454 355.9
2011 0.456 355.0
2012 0.457 354.1
2013 0.457 353.2
2014 0.458 352.3
2015 0.457 351.3
2016 0.457 350.4
2017 0.456 349.5
2018 0.454 348.6
2019 0.452 347.7
2020 0.449 346.8
2021 0.446 345.8
2022 0.443 344.9
2023 0.439 343.9
2024 0.434 342.9
2025 0.429 341.9
2026 0.424 340.8
2027 0.417 339.8
2028 0.411 338.6
2029 0.403 337.5
2030 0.395 336.3

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