00022+2705 BU 733 AB (85 Peg)

 
 
00h 02m 10.18s +27 04' 55.6" P.A. 96.00 sep 0.6 mag 5.83,8.90 Sp G5Vb+K5V dist. 12.17 pc (39.7 l.y.)
 
 
Coord 2000 00022+2705 Discov num BU  733 Comp AB Coord arcsec 2000 00 02 10.18 +27 04 55.6
Date first 1878 Date last 2017 Obs 209
Pa first 274 Pa last 95.8 P.A. Now (θ) 151.2°
Sep first 0.7 Sep last 0.594 Sep. Now (ρ) 0.785"
Mag pri 5.83 Mag sec 8.90 delta mag (ΔM) 3.07 Spectral class G5Vb+K5V (yellow/yellow-orange)
Pri motion ra +830 Sec motion ra
Pri motion dec -989 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
00022+2705 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 85 Peg 91669 00 02 10 +27 04 56 BU 733 AB 2017 209 96 0.6 5.83 8.90 3.07 Y <===
Show 91668 00 02 10 +27 04 56 BU 733 AC 2013 66 324 177.5 5.83 9.88 4.05
Show 91669 00 02 10 +27 04 56 BU 733 AD 1998 16 307 206.4 5.83 14.20 8.37
Show 91669 00 02 10 +27 04 56 HSW 1 AE 1998 2 309 100.9 5.83 15.67 9.84
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 85 Peg Var name NSV14809 Peg Constellation Pegasus SAO 91669
HIP 171 Tycho2 1732-02731-1 HD 224930 HR 9088
GC 33334 ADS 17175 GL Gl 914A BD BD+26 4734
Flamsteed 85 Pegasi Flamsteed name 85 Peg Distance 12.17 Distance ly 39.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)26.28y Periastron (T)1989.4y Semi-major axis (a)0.83a
Eccentricity (e)0.38 Inclination (i)49° Longitude of periastron (ω)96°
Node (Ω)290° Notesn ReferenceSod1999
Equinox2000 Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 183.2 0.749
2001 193.4 0.747
2002 203.7 0.751
2003 213.7 0.763
2004 223.3 0.780
2005 232.5 0.801
2006 241.1 0.823
2007 249.4 0.841
2008 257.4 0.853
2009 265.2 0.853
2010 273.2 0.836
2011 281.8 0.796
2012 291.6 0.727
2013 304.1 0.622
2014 322.9 0.487
2015 356.2 0.362
2016 44.3 0.357
2017 78.9 0.475
2018 98.7 0.604
2019 112.2 0.697
2020 123.0 0.754
2021 132.7 0.782
2022 141.9 0.789
2023 151.2 0.785
2024 160.6 0.774
2025 170.3 0.761
2026 180.3 0.751
2027 190.6 0.747
2028 200.8 0.749
2029 210.9 0.759
2030 220.6 0.775


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



 
 


wds00022%2B2705a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic