03122+3713 STF 360

 
 
03h 12m 09.59s +37 13' 03.3" P.A. 125.5 sep 2.87 mag 8.02,8.29 Sp G0 dist. 39.92 pc (130.22 l.y.)
 
 
Coord 2000
03122+3713
Discov num
STF 360
Comp
Coord arcsec 2000
03 12 09.59 +37 13 03.3
Date first
1828
Date last
2014
Obs
145
Pa first
147
Pa last
124
P.A. Now (θ)
125.5°
Sep first
1.2
Sep last
2.9
Sep. Now (ρ)
2.87"
Mag pri
8.02
Mag sec
8.29
delta mag (ΔM)
0.27
Spectral class
G0 (yellow)
Pri motion ra
-033
Sec motion ra
-024
Pri motion dec
-025
Sec motion dec
-025
Notes
N C (See Notes, Has orbit and linear solution)
rPM=0.217 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.2
Precise sep
2.883
Constellation
Perseus
SAO
56241
HIP
14886
Tycho2
2352-00206-1
HD
19771
ADS
2390
BD
BD+36 650
Distance
39.92
Distance ly
130.22
last precise pa
125.6
last precise sep
2.747
 
 
ORBITAL ELEMENTS
 
 
Period (P)871y Periastron (T)1454y Semi-major axis (a)3.66a
Eccentricity (e)0.71 Inclination (i)98° Longitude of periastron (ω)105°
Node (Ω)111° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2002
label rho theta
2000 2.753 126.7
2001 2.761 126.6
2002 2.768 126.6
2003 2.775 126.5
2004 2.782 126.4
2005 2.789 126.3
2006 2.796 126.3
2007 2.803 126.2
2008 2.810 126.1
2009 2.817 126.1
2010 2.824 126.0
2011 2.831 125.9
2012 2.838 125.9
2013 2.845 125.8
2014 2.852 125.7
2015 2.858 125.7
2016 2.865 125.6
2017 2.872 125.5
2018 2.879 125.5
2019 2.885 125.4
2020 2.892 125.3
2021 2.898 125.3
2022 2.905 125.2
2023 2.912 125.1
2024 2.918 125.1
2025 2.924 125.0
2026 2.931 125.0
2027 2.937 124.9
2028 2.944 124.8
2029 2.950 124.8
2030 2.956 124.7

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

grafico orbita





wds03122%2B3713a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03122+3713 STF 360 2006 130 126 2.8 8.02 8.29 G0 NCD 031209.59+371303.3
03122+3713 STF 360 2008 132 125 2.8 8.02 8.29 G0 NCD 031209.59+371303.3
03122+3713 STF 360 2009 135 126 2.9 8.02 8.29 G0 NCD 031209.59+371303.3
03122+3713 STF 360 2011 140 126 2.8 8.02 8.29 G0 NCD 031209.59+371303.3
03122+3713 STF 360 2014 145 124 2.9 8.02 8.29 G0 NC 031209.59+371303.3

If you need more information about this double, apply for a data request form to the WDS.