23075+2108 MAR 1 Aa,Ad

 
 
23h 07m 28.71s +21° 08' 03.3" P.A. 221.00 sep 0.7 mag 5.38,15.26 Sp A5V dist. 39.4 pc (128.52 l.y.)
 
 
Coord 2000 23075+2108 Discov num MAR   1 Comp Aa,Ad Coord arcsec 2000 23 07 28.71 +21 08 03.3
Date first 1998 Date last 2015 Obs 25
Pa first 166 Pa last 220.5 P.A. Now (θ) 220.5°
Sep first 0.5 Sep last 0.671 Sep. Now (ρ) 0.671"
Mag pri 5.38 Mag sec 15.26 delta mag (ΔM) 9.88 Spectral class A5V (white)
Pri motion ra +108 Sec motion ra
Pri motion dec -050 Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
23075+2108 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show V342 Peg 91022 23 07 29 +21 08 03 MAR 1 Aa,Ab 2015 33 67 1.7 5.38 16.30 10.92 Y
Show 91022 23 07 29 +21 08 03 MAR 1 Aa,Ac 2015 32 329 0.9 5.38 14.65 9.27 Y
Show 91022 23 07 29 +21 08 03 MAR 1 Aa,Ad 2015 25 221 0.7 5.38 15.26 9.88 Y <===
Show 91022 23 07 29 +21 08 03 MAR 1 Aa,Ae 2014 16 272 0.4 5.38 15.90 10.52 Y
Show 91022 23 07 29 +21 08 03 LWR 19 AB 2007 2 13 14.2 5.40 21.60 16.20
Show 91022 23 07 29 +21 08 03 LWR 19 AC 2007 2 116 14.9 5.40 20.40 15.00
Show 91022 23 07 29 +21 08 03 CLO 11 AD 1994 1 224 240.0 5.96 20.80 14.84
Octuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V342 Peg Constellation Pegasus SAO 91022 HIP 114189
Tycho2 1718-02350-1 Gaia DR2 2832463659640297472 HD 218396 HR 8799
BD BD+20 5278 FK5 3850 Distance 39.4 Distance ly 128.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)113.97y± 6.18 Periastron (T)1965.27y± 1.55 Semi-major axis (a)0.685a± 0.019
Eccentricity (e)0 Inclination (i)38.63°± 2.84 Longitude of periastron (ω)
Node (Ω)56.09°± 3.78 Notesn ReferenceZur2015
Equinox2000 Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 170.7 0.554
2001 174.4 0.560
2002 178.1 0.567
2003 181.6 0.574
2004 185.1 0.582
2005 188.5 0.590
2006 191.8 0.598
2007 195.0 0.606
2008 198.1 0.615
2009 201.1 0.623
2010 204.0 0.631
2011 206.9 0.638
2012 209.7 0.646
2013 212.5 0.652
2014 215.2 0.659
2015 217.8 0.664
2016 220.4 0.670
2017 223.0 0.674
2018 225.5 0.678
2019 228.0 0.681
2020 230.5 0.683
2021 233.0 0.684
2022 235.5 0.685
2023 237.9 0.685
2024 240.4 0.684
2025 242.9 0.682
2026 245.4 0.679
2027 247.9 0.676
2028 250.5 0.672
2029 253.0 0.667
2030 255.7 0.662


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



 
 


wds23075%2B2108p.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic