23304+3050 BU 1266 AB

 
 
23h 30m 26.29s +30° 49' 54.6" P.A. 193.00 sep 0.2 mag 8.35,8.14 Sp F7V dist. 68.07 pc (222.04 l.y.)
 
 
Coord 2000 23304+3050 Discov num BU 1266 Comp AB Coord arcsec 2000 23 30 26.29 +30 49 54.6
Date first 1891 Date last 2011 Obs 149
Pa first 74 Pa last 192.6 P.A. Now (θ) 115°
Sep first 0.2 Sep last 0.161 Sep. Now (ρ) 0.217"
Mag pri 8.35 Mag sec 8.14 delta mag (ΔM) 0.21 Spectral class F7V (yellow-white)
Pri motion ra +079 Sec motion ra
Pri motion dec -029 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
23304+3050 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 73306 23 30 26 +30 49 55 BU 1266 AB 2011 149 193 0.2 8.35 8.14 0.21 Y <===
Show 73306 23 30 26 +30 49 55 STF 3018 AB,C 2015 51 202 18.8 7.43 9.75 2.32
Show 73306 23 30 26 +30 49 55 LV 25 AB,D 2015 8 355 39.0 7.43 13.80 6.37
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus SAO 73306 HIP 116017 Tycho2 2765-01276-1
Gaia DR2 2869876947957928576 HD 221264 GC 32687 ADS 16800
BD BD+30 4963 Distance 68.07 Distance ly 222.04
 
 
ORBITAL ELEMENTS
 
 
Period (P)48.4y Periastron (T)1910y Semi-major axis (a)0.189a
Eccentricity (e)0.43 Inclination (i)142° Longitude of periastron (ω)335°
Node (Ω)249° Notesn ReferenceMsn1998c
Equinox2000 Last observation1996 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 21.0 0.144
2001 10.9 0.130
2002 358.3 0.116
2003 342.6 0.105
2004 323.9 0.098
2005 303.6 0.096
2006 283.8 0.100
2007 265.7 0.105
2008 249.5 0.111
2009 234.7 0.115
2010 220.8 0.118
2011 207.7 0.122
2012 195.3 0.126
2013 183.8 0.131
2014 173.2 0.137
2015 163.6 0.144
2016 155.0 0.152
2017 147.3 0.161
2018 140.4 0.171
2019 134.3 0.180
2020 128.8 0.190
2021 123.8 0.199
2022 119.2 0.208
2023 115.0 0.217
2024 111.2 0.225
2025 107.5 0.232
2026 104.1 0.239
2027 100.9 0.245
2028 97.8 0.250
2029 94.9 0.255
2030 92.0 0.258


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



 
 


wds23304%2B3050a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic