00122+4647 A 802 (HD 764)

 
 
00h 12m 10.31s +46 46' 29.7" P.A. 138.00 sep 0.2 mag 9.70,10.35 Sp F8 dist. 267.38 pc (872.19 l.y.)
 
 
Coord 2000 00122+4647 Discov num A   802 Comp Coord arcsec 2000 00 12 10.31 +46 46 29.7
Date first 1904 Date last 1991 Obs 15
Pa first 338 Pa last 138 P.A. Now (θ) 138°
Sep first 0.2 Sep last 0.158 Sep. Now (ρ) 0.158"
Mag pri 9.70 Mag sec 10.35 delta mag (ΔM) 0.65 Spectral class F8 (yellow-white)
Pri motion ra +061 Sec motion ra
Pri motion dec +006 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 764 Constellation Andromeda SAO 36152 HIP 984
Tycho2 3247-00446-1 Gaia DR2 392942198522189184 HD 764 ADS 149
BD BD+45 23 Distance 267.38 Distance ly 872.19
 
 
ORBITAL ELEMENTS
 
 
Period (P)269.52y Periastron (T)1972.51y Semi-major axis (a)0.26a
Eccentricity (e)0.511 Inclination (i)108.8° Longitude of periastron (ω)266.6°
Node (Ω)125.6° Notesn ReferenceMsn2001c
Equinox2000 Last observation1991 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 125.4 0.199
2001 124.8 0.203
2002 124.2 0.206
2003 123.6 0.209
2004 123.0 0.212
2005 122.5 0.214
2006 122.0 0.217
2007 121.4 0.219
2008 120.9 0.221
2009 120.4 0.223
2010 119.9 0.225
2011 119.4 0.226
2012 118.9 0.228
2013 118.5 0.229
2014 118.0 0.231
2015 117.5 0.232
2016 117.0 0.233
2017 116.6 0.233
2018 116.1 0.234
2019 115.7 0.235
2020 115.2 0.235
2021 114.8 0.236
2022 114.3 0.236
2023 113.9 0.236
2024 113.4 0.236
2025 113.0 0.236
2026 112.5 0.236
2027 112.1 0.236
2028 111.6 0.236
2029 111.2 0.236
2030 110.7 0.235


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



 
 


wds00122%2B4647a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic