03342+4837 BU  787AB

 
 
03H 34M 12.97S +48 37' 02.9" P.A. 293.9 SEP 4.76 MAG 7.38,11.90 SP B9.5V DIST. 261.1 PC (851.71 L.Y.)
 
 
Coord 2000
03342+4837
Discov num
BU  787
Comp
AB
Coord arcsec 2000
03 34 12.97 +48 37 02.9
Date first
1881
Date last
2010
Obs
17
Pa first
229
Pa last
291
P.A. Now (θ)
293.9°
Sep first
2.1
Sep last
4.7
Sep. Now (ρ)
4.76"
Mag pri
7.38
Mag sec
11.90
delta mag (ΔM)
4.52
Spectral class
B9.5V (blue-white)
Pri motion ra
+023
Sec motion ra
Pri motion dec
-027
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
03342+4837 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 38946 03342+4837 BU 787 AB 1881 2010 17 294 4.8 7.38 11.90 4.52 Y <===
Show 38946 03342+4837 BU 787 AD 1898 2010 9 180 34.7 7.38 11.75 4.37
Show 38946 03342+4837 ARN 57 AE 1903 2003 10 29 174.8 7.38 8.81 1.43
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
38946
HIP
16649
Tycho2
3317-00589-1
HD
21931
ADS
2609
BD
BD+48 949
Distance
261.1
Distance ly
851.71
last precise pa
290.9
last precise sep
4.739
 
 
ORBITAL ELEMENTS
 
 
Period (P)655.8y± 27.3 Periastron (T)2264.9y± 13.5 Semi-major axis (a)4.99a± 1.78
Eccentricity (e)0.261± 0.93 Inclination (i)70°± 2.7 Longitude of periastron (ω)291.6°± 10.9
Node (Ω)130.5°± 0.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 4.459 290.3
2001 4.478 290.5
2002 4.497 290.8
2003 4.516 291.0
2004 4.535 291.2
2005 4.553 291.4
2006 4.572 291.6
2007 4.590 291.9
2008 4.608 292.1
2009 4.626 292.3
2010 4.644 292.5
2011 4.662 292.7
2012 4.679 292.9
2013 4.696 293.1
2014 4.714 293.3
2015 4.731 293.5
2016 4.747 293.7
2017 4.764 293.9
2018 4.780 294.1
2019 4.796 294.3
2020 4.812 294.5
2021 4.828 294.7
2022 4.844 294.9
2023 4.859 295.1
2024 4.874 295.3
2025 4.889 295.5
2026 4.904 295.7
2027 4.919 295.8
2028 4.933 296.0
2029 4.947 296.2
2030 4.961 296.4

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