15360+3948 STT 298AB

 
 
15h 36m 02.22s +39 48' 08.9" P.A. 187 sep 1.21 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
2017
Obs
539
Pa first
179
Pa last
186
P.A. Now (θ)
187°
Sep first
1.1
Sep last
1.2
Sep. Now (ρ)
1.21"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 64800 15360+3948 STT 298 AB 1843 2017 539 187 1.2 7.16 8.44 1.28 Y <===
Show 64800 15360+3948 STT 298 AB,C 1867 2013 42 328 121.6 6.90 7.75 0.85
Show 64800 15360+3948 STT 298 AB,D 1886 2002 6 224 167.4 6.90 13.94 7.04
Show 64800 15360+3948 STT 298 AB,E 1934 2002 5 335 456.0 6.90 12.07 5.17
Show 64799 15360+3948 STT 298 CE 1934 1999 4 337 335.8 7.75 12.07 4.32
Quintuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
186.2
Precise sep
1.22
Cdsa2 id
STT 298 AB
Constellation
Bootes
SAO
64800
HIP
76382
Tycho2
3053-00798-1
HD
139341
ADS
9716
GL
Gl 593A
BD
BD+40 2905
Ra deg
15.600616666666665
De deg
39.80247222222222
Distance
22.31
Distance ly
72.78
last precise pa
186.2
last precise sep
1.22
 
 
ORBITAL ELEMENTS
 
 
Period (P)55.6y Periastron (T)1993.99y Semi-major axis (a)0.794a
Eccentricity (e)0.59 Inclination (i)63° Longitude of periastron (ω)23°
Node (Ω) Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.480 153.2
2001 0.570 158.7
2002 0.654 162.7
2003 0.731 165.8
2004 0.801 168.3
2005 0.864 170.5
2006 0.921 172.4
2007 0.971 174.1
2008 1.017 175.6
2009 1.056 177.0
2010 1.091 178.3
2011 1.121 179.5
2012 1.146 180.6
2013 1.167 181.8
2014 1.184 182.8
2015 1.197 183.9
2016 1.205 184.9
2017 1.210 186.0
2018 1.211 187.0
2019 1.209 188.0
2020 1.203 189.0
2021 1.193 190.1
2022 1.180 191.1
2023 1.164 192.2
2024 1.145 193.3
2025 1.122 194.5
2026 1.096 195.7
2027 1.067 197.0
2028 1.035 198.4
2029 1.000 199.8
2030 0.961 201.4

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

grafico orbita





wds15360%2B3948a.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
15360+3948 STT 298 AB 2007 518 175 0.9 7.16 8.44 K2V NOD 153602.59+394808.7
15360+3948 STT 298 AB 2008 524 177 1.0 7.16 8.44 K2V NOD 153602.59+394808.7
15360+3948 STT 298 AB 2010 526 180 1.1 7.16 8.44 K2V NOD 153602.59+394808.7
15360+3948 STT 298 AB 2013 533 183 1.2 7.16 8.44 K2V NOD 153602.59+394808.7
15360+3948 STT 298 AB 2014 533 186 1.2 7.16 8.44 K2V NOD 153602.59+394808.7
15360+3948 STT 298 AB 2015 535 186 1.2 7.16 8.44 K2V NO 153602.59+394808.7
15360+3948 STT 298 AB 2017 539 186 1.2 7.16 8.44 K2V NO 153602.22+394808.9

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