01551+2847 STF 183 AB

 
 
01h 55m 07.39s +28° 47' 52.6" P.A. 142.00 sep 0.3 mag 7.67,10.00 Sp F2 dist. 165.84 pc (540.97 l.y.)
 
 
Coord 2000 01551+2847 Discov num STF 183 Comp AB Coord arcsec 2000 01 55 07.39 +28 47 52.6
Date first 1833 Date last 2013 Obs 130
Pa first 22 Pa last 141.5 P.A. Now (θ) 135.7°
Sep first 0.6 Sep last 0.307 Sep. Now (ρ) 0.361"
Mag pri 7.67 Mag sec 10.00 delta mag (ΔM) 2.33 Spectral class F2 (yellow-white)
Pri motion ra +028 Sec motion ra +028
Pri motion dec -035 Sec motion dec -035
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
01551+2847 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 75020 01 55 07 +28 47 53 STF 183 AB 2013 130 142 0.3 7.67 10.00 2.33 Y <===
Show HD 11671 75020 01 55 07 +28 47 53 STF 183 AB,C 2018 95 162 5.6 7.67 9.26 1.59
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Triangulum SAO 75020 HIP 8938 Tycho2 1763-00418-1
Gaia DR2 299177771048596096 HD 11671 GC 2314 ADS 1522
BD BD+28 319 Distance 165.84 Distance ly 540.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)332.79y Periastron (T)1966.42y Semi-major axis (a)0.489a
Eccentricity (e)0.523 Inclination (i)121.3° Longitude of periastron (ω)290.5°
Node (Ω)170.3° Notesn ReferenceUSN2000b
Equinox Last observation1997 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 156.2 0.346
2001 155.3 0.348
2002 154.4 0.350
2003 153.4 0.352
2004 152.5 0.353
2005 151.6 0.355
2006 150.7 0.356
2007 149.8 0.357
2008 148.9 0.358
2009 148.0 0.359
2010 147.1 0.359
2011 146.2 0.360
2012 145.3 0.361
2013 144.5 0.361
2014 143.6 0.361
2015 142.7 0.362
2016 141.8 0.362
2017 141.0 0.362
2018 140.1 0.362
2019 139.2 0.362
2020 138.3 0.362
2021 137.4 0.362
2022 136.6 0.361
2023 135.7 0.361
2024 134.8 0.361
2025 133.9 0.361
2026 133.1 0.360
2027 132.2 0.360
2028 131.3 0.360
2029 130.4 0.359
2030 129.5 0.359


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


 
  


wds01551%2B2847b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic