15360+3948 STT 298 AB

 
 
15h 36m 02.22s +39° 48' 08.9" P.A. 191.00 sep 1.2 mag 7.16,8.44 Sp K2V dist. 22.31 pc (72.78 l.y.)
 
 
Coord 2000 15360+3948 Discov num STT 298 Comp AB Coord arcsec 2000 15 36 02.22 +39 48 08.9
Date first 1843 Date last 2021 Obs 553
Pa first 179 Pa last 190.6 P.A. Now (θ) 192.6°
Sep first 1.1 Sep last 1.21 Sep. Now (ρ) 1.139"
Mag pri 7.16 Mag sec 8.44 delta mag (ΔM) 1.28 Spectral class K2V (yellow-orange)
Pri motion ra -483 Sec motion ra -455
Pri motion dec +028 Sec motion dec +051
Notes N O (See Notes, Orbital solution)
rPM=0.075 (< 0.3, Physical double)
This double is physical.
 
 
15360+3948 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 64800 15 36 02 +39 48 09 STT 298 AB 2021 553 191 1.2 7.16 8.44 1.28 Y <===
Show HD 139341 64800 15 36 02 +39 48 09 STT 298 AB,C 2017 43 328 120.4 6.90 7.75 0.85
Show 64800 15 36 02 +39 48 09 STT 298 AB,D 2002 6 224 167.4 6.90 13.94 7.04
Show 64800 15 36 02 +39 48 09 STT 298 AB,E 2002 5 335 456.0 6.90 12.07 5.17
Show 64799 15 35 57 +39 49 52 STT 298 CE 1999 4 337 335.8 7.75 12.07 4.32
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Bootes SAO 64800 HIP 76382 Tycho2 3053-00798-1
HD 139341 GC 20990 ADS 9716 GL Gl 593A
BD BD+40 2905 Distance 22.31 Distance ly 72.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)55.452y± 0.0691 Periastron (T)1938.4947y± 0.0909 Semi-major axis (a)0.78322a± 0.00428
Eccentricity (e)0.5844± 0.00255 Inclination (i)63.51°± 0.375 Longitude of periastron (ω)23.236°± 0.951
Node (Ω)0.352°± 0.486 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 153.9 0.472
2001 159.3 0.562
2002 163.3 0.645
2003 166.3 0.721
2004 168.9 0.789
2005 171.0 0.852
2006 172.9 0.908
2007 174.5 0.958
2008 176.0 1.002
2009 177.4 1.041
2010 178.7 1.075
2011 179.9 1.104
2012 181.1 1.129
2013 182.2 1.149
2014 183.3 1.165
2015 184.3 1.177
2016 185.3 1.185
2017 186.4 1.189
2018 187.4 1.190
2019 188.4 1.187
2020 189.4 1.180
2021 190.5 1.170
2022 191.5 1.156
2023 192.6 1.139
2024 193.8 1.119
2025 194.9 1.096
2026 196.2 1.069
2027 197.5 1.040
2028 198.8 1.007
2029 200.3 0.971
2030 201.9 0.933


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



 
 


wds15360%2B3948b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic