16192+4140 STT 309 (HD 147275)

 
 
16h 19m 14.48s +41° 39' 33.6" P.A. 317.00 sep 0.3 mag 8.74,8.97 Sp A5+G dist. 209.21 pc (682.44 l.y.)
 
 
Coord 2000 16192+4140 Discov num STT 309 Comp Coord arcsec 2000 16 19 14.48 +41 39 33.6
Date first 1843 Date last 2016 Obs 110
Pa first 225 Pa last 316.8 P.A. Now (θ) 316.8°
Sep first 0.3 Sep last 0.27 Sep. Now (ρ) 0.27"
Mag pri 8.74 Mag sec 8.97 delta mag (ΔM) 0.23 Spectral class A5+G (white/yellow)
Pri motion ra -026 Sec motion ra
Pri motion dec +028 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 147275 Constellation Hercules SAO 46022 HIP 79957
Tycho2 3065-00774-1 HD 147275 ADS 10006 BD BD+41 2689
Distance 209.21 Distance ly 682.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)345y Periastron (T)1795y Semi-major axis (a)0.418a
Eccentricity (e)0.445 Inclination (i)61.1° Longitude of periastron (ω)66.7°
Node (Ω)44.8° Notes ReferenceUSN2002
Equinox2000 Last observation1997 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 297.6 0.294
2001 298.5 0.293
2002 299.5 0.291
2003 300.4 0.290
2004 301.3 0.288
2005 302.3 0.287
2006 303.3 0.286
2007 304.2 0.284
2008 305.2 0.283
2009 306.2 0.282
2010 307.2 0.281
2011 308.2 0.280
2012 309.2 0.279
2013 310.2 0.278
2014 311.3 0.277
2015 312.3 0.276
2016 313.3 0.275
2017 314.4 0.274
2018 315.4 0.274
2019 316.5 0.273
2020 317.5 0.272
2021 318.6 0.272
2022 319.7 0.271
2023 320.8 0.271
2024 321.8 0.270
2025 322.9 0.270
2026 324.0 0.270
2027 325.1 0.270
2028 326.2 0.270
2029 327.2 0.269
2030 328.3 0.269


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


 
  


wds16192%2B4140a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic