01148+6056 BU 1100 (HD 7331)

01h 14m 45.80s +60° 56' 19.9" P.A. 353.00 sep 0.3 mag 8.94,7.57 Sp F7IV dist. 100.3 pc (327.18 l.y.)

Coord 2000 01148+6056 Discov num BU 1100 Comp Coord arcsec 2000 01 14 45.80 +60 56 19.9
Date first 1889 Date last 2010 Obs 70
Pa first 44 Pa last 353.4 P.A. Now (θ) 132.3°
Sep first 0.5 Sep last 0.33 Sep. Now (ρ) 0.204"
Mag pri 8.94 Mag sec 7.57 delta mag (ΔM) 1.37 Spectral class F7IV (yellow-white)
Pri motion ra +064 Sec motion ra +064
Pri motion dec -044 Sec motion dec -044
Notes N O (See Notes, Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 7331 Constellation Cassiopeia SAO 11652 HIP 5829
Tycho2 4030-00318-1 Gaia DR2 510447830826862848 HD 7331 GC 1484
ADS 999 BD BD+60 193 Distance 100.3 Distance ly 327.18




ORBITAL ELEMENTS

Period (P)171.49y Periastron (T)1950.92y Semi-major axis (a)0.506a
Eccentricity (e)0.135 Inclination (i)110.7° Longitude of periastron (ω)288.1°
Node (Ω)210.7° Notesn ReferenceMsn2014b
Equinox2000 Last observation2010 Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 190.9 0.395
2001 189.7 0.386
2002 188.4 0.377
2003 187.0 0.367
2004 185.6 0.358
2005 184.1 0.348
2006 182.5 0.339
2007 180.8 0.329
2008 179.0 0.319
2009 177.1 0.309
2010 175.1 0.299
2011 172.9 0.289
2012 170.6 0.280
2013 168.1 0.270
2014 165.4 0.261
2015 162.6 0.252
2016 159.5 0.244
2017 156.2 0.236
2018 152.7 0.229
2019 149.0 0.222
2020 145.1 0.216
2021 141.0 0.211
2022 136.7 0.207
2023 132.3 0.204
2024 127.7 0.202
2025 123.1 0.201
2026 118.4 0.202
2027 113.8 0.203
2028 109.3 0.206
2029 104.9 0.209
2030 100.7 0.214


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



 
 


wds01148%2B6056b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic