15151+3650 STT 295

 
 
15H 15M 03.25S +36 49' 48.9" P.A. 174 SEP 0.11 MAG 8.80,9.45 SP F5 DIST. 130.21 PC (424.75 L.Y.)
 
 
Coord 2000
15151+3650
Discov num
STT 295
Comp
Coord arcsec 2000
15 15 03.25 +36 49 48.9
Date first
1843
Date last
2010
Obs
54
Pa first
115
Pa last
151
P.A. Now (θ)
174°
Sep first
0.8
Sep last
0.3
Sep. Now (ρ)
0.11"
Mag pri
8.80
Mag sec
9.45
delta mag (ΔM)
0.65
Spectral class
F5 (yellow-white)
Pri motion ra
+019
Sec motion ra
+019
Pri motion dec
+005
Sec motion dec
+005
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Bootes
SAO
64586
HIP
74643
Tycho2
2569-00208-1
HD
135657
ADS
9554
BD
BD+37 2621
Distance
130.21
Distance ly
424.75
last precise pa
150.9
last precise sep
0.29
 
 
ORBITAL ELEMENTS
 
 
Period (P)233y Periastron (T)2021y Semi-major axis (a)0.487a
Eccentricity (e)0.94 Inclination (i)41.7° Longitude of periastron (ω)173.3°
Node (Ω)133.8° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.450 144.8
2001 0.436 145.3
2002 0.422 145.8
2003 0.408 146.3
2004 0.393 146.9
2005 0.378 147.5
2006 0.362 148.2
2007 0.345 149.0
2008 0.328 149.8
2009 0.311 150.7
2010 0.292 151.7
2011 0.273 152.9
2012 0.253 154.2
2013 0.232 155.8
2014 0.210 157.7
2015 0.187 160.1
2016 0.162 163.2
2017 0.135 167.5
2018 0.106 174.0
2019 0.074 185.7
2020 0.042 215.8
2021 0.029 308.8
2022 0.042 33.9
2023 0.070 66.0
2024 0.099 79.4
2025 0.126 86.8
2026 0.152 91.7
2027 0.176 95.2
2028 0.198 97.9
2029 0.219 100.0
2030 0.240 101.8

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