09379+7305 STF1362

 
 
09h 37m 56.18s +73 04' 49.5" P.A. 125 sep 4.9 mag 7.03,7.20 Sp F1V+F2V dist. 71.02 pc (231.67 l.y.)
 
 
Coord 2000
09379+7305
Discov num
STF1362
Comp
Coord arcsec 2000
09 37 56.18 +73 04 49.5
Date first
1831
Date last
2017
Obs
105
Pa first
140
Pa last
125
P.A. Now (θ)
125°
Sep first
7.0
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
7.03
Mag sec
7.20
delta mag (ΔM)
0.17
Spectral class
F1V+F2V (yellow-white/yellow-white)
Pri motion ra
-042
Sec motion ra
-014
Pri motion dec
-020
Sec motion dec
-042
Notes
rPM=0.765
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.7
Precise sep
4.929
Cdsa2 id
STF 1362
Constellation
Draco
SAO
6915
HIP
47260
Tycho2
4389-01563-1
HD
82685
HR
3806
ADS
7446
BD
BD+73 470
Ra deg
9.632272222222223
De deg
73.08041666666666
Distance
71.02
Distance ly
231.67
last precise pa
124.7
last precise sep
4.929
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)7.9y Periastron (T)1980y Semi-major axis (a)13.2a± 6
Eccentricity (e)0 Inclination (i)62.3°± 18 Longitude of periastron (ω)
Node (Ω)54.7°± 21.4 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 12.997 240.1
2001 8.846 270.3
2002 6.639 350.3
2003 11.666 38.6
2004 12.908 61.2
2005 8.566 92.7
2006 6.825 174.3
2007 11.869 219.9
2008 12.803 242.3
2009 8.289 275.3
2010 7.032 358.2
2011 12.059 41.2
2012 12.684 63.4
2013 8.017 98.1
2014 7.257 181.8
2015 12.236 222.4
2016 12.549 244.6
2017 7.753 281.0
2018 7.499 5.2
2019 12.400 43.7
2020 12.400 65.7
2021 7.499 104.2
2022 7.753 188.4
2023 12.549 224.8
2024 12.236 247.0
2025 7.257 287.6
2026 8.017 11.3
2027 12.684 46.0
2028 12.059 68.2
2029 7.032 111.2
2030 8.289 194.1

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

grafico orbita





wds09379%2B7305r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)7.9y Periastron (T)1980y Semi-major axis (a)14a± 7.7
Eccentricity (e)0.5 Inclination (i)62.4°± 19.3 Longitude of periastron (ω)81.1°± 36.5
Node (Ω)55°± 23.3 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 9.810 315.3
2001 9.948 353.6
2002 11.444 25.0
2003 10.021 53.3
2004 5.342 201.8
2005 13.141 244.2
2006 13.522 263.3
2007 11.470 286.2
2008 9.714 319.1
2009 10.080 357.2
2010 11.540 27.8
2011 9.379 57.1
2012 6.591 212.0
2013 13.398 246.2
2014 13.374 265.3
2015 11.241 288.9
2016 9.642 322.9
2017 10.225 0.7
2018 11.606 30.4
2019 8.589 61.6
2020 7.777 219.0
2021 13.592 248.2
2022 13.207 267.3
2023 11.018 291.8
2024 9.595 326.8
2025 10.381 4.0
2026 11.634 33.1
2027 7.642 67.0
2028 8.850 224.2
2029 13.729 250.1
2030 13.022 269.4

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

grafico orbita





wds09379%2B7305s.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)7.9y Periastron (T)1981.6y Semi-major axis (a)18.4a± 8.5
Eccentricity (e)0.8 Inclination (i)66.2°± 19.1 Longitude of periastron (ω)132°± 42.3
Node (Ω)62.5°± 22.6 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 18.552 27.5
2001 23.176 36.0
2002 25.571 42.2
2003 25.237 47.9
2004 20.940 54.7
2005 7.711 73.8
2006 6.105 323.0
2007 12.765 13.5
2008 19.106 28.5
2009 23.521 36.7
2010 25.672 42.8
2011 25.019 48.5
2012 20.184 55.6
2013 5.079 83.3
2014 6.581 332.3
2015 13.470 15.7
2016 19.641 29.5
2017 23.844 37.4
2018 25.746 43.4
2019 24.760 49.1
2020 19.347 56.6
2021 2.213 117.1
2022 7.146 340.3
2023 14.162 17.6
2024 20.155 30.5
2025 24.144 38.0
2026 25.792 43.9
2027 24.459 49.7
2028 18.418 57.6
2029 2.698 218.4
2030 7.776 347.0

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

grafico orbita





wds09379%2B7305t.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
09379+7305 STF1362 2005 90 124 4.9 7.03 7.20 F1V+F2V D 093756.18+730449.5
09379+7305 STF1362 2007 104 125 4.9 7.03 7.20 F1V+F2V D 093756.18+730449.5
09379+7305 STF1362 2015 103 125 4.6 7.03 7.20 F1V+F2V D 093756.18+730449.5
09379+7305 STF1362 2017 105 125 4.9 7.03 7.20 F1V+F2V 093756.18+730449.5

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