09371+1614 STF1372

 
 
09H 37M 07.57S +16 13' 33.3" P.A. 251.8 SEP 0.32 MAG 8.50,8.60 SP F8 DIST. 147.06 PC (479.71 L.Y.)
 
 
Coord 2000
09371+1614
Discov num
STF1372
Comp
Coord arcsec 2000
09 37 07.57 +16 13 33.3
Date first
1829
Date last
2008
Obs
76
Pa first
53
Pa last
246
P.A. Now (θ)
251.8°
Sep first
0.5
Sep last
0.3
Sep. Now (ρ)
0.32"
Mag pri
8.50
Mag sec
8.60
delta mag (ΔM)
0.1
Spectral class
F8 (yellow-white)
Pri motion ra
-054
Sec motion ra
Pri motion dec
-052
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
98674
HIP
47196
Tycho2
1410-00195-1
HD
83190
ADS
7456
BD
BD+16 1997
Distance
147.06
Distance ly
479.71
last precise pa
245.5
last precise sep
0.293
 
 
ORBITAL ELEMENTS
 
 
Period (P)371y Periastron (T)1993.5y Semi-major axis (a)0.645a
Eccentricity (e)0.696 Inclination (i)80.4° Longitude of periastron (ω)113.4°
Node (Ω)64.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2003
label rho theta
2000 0.207 241.1
2001 0.222 242.2
2002 0.235 243.1
2003 0.247 243.9
2004 0.257 244.7
2005 0.267 245.4
2006 0.275 246.0
2007 0.283 246.7
2008 0.290 247.2
2009 0.295 247.8
2010 0.300 248.4
2011 0.305 248.9
2012 0.309 249.4
2013 0.312 249.9
2014 0.314 250.4
2015 0.317 250.9
2016 0.318 251.4
2017 0.320 251.8
2018 0.320 252.3
2019 0.321 252.8
2020 0.321 253.2
2021 0.321 253.7
2022 0.321 254.2
2023 0.320 254.6
2024 0.319 255.1
2025 0.318 255.6
2026 0.317 256.1
2027 0.315 256.6
2028 0.314 257.0
2029 0.312 257.5
2030 0.310 258.0

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