00214+6700 STT 6 AB (HD 1658)

 
 
00h 21m 22.17s +67 00' 19.5" P.A. 153.00 sep 0.7 mag 7.54,8.77 Sp B8.5V dist. 165.56 pc (540.06 l.y.)
 
 
Coord 2000 00214+6700 Discov num STT   6 Comp AB Coord arcsec 2000 00 21 22.17 +67 00 19.5
Date first 1843 Date last 2014 Obs 77
Pa first 137 Pa last 153.4 P.A. Now (θ) 153.4°
Sep first 0.6 Sep last 0.66 Sep. Now (ρ) 0.66"
Mag pri 7.54 Mag sec 8.77 delta mag (ΔM) 1.23 Spectral class B8.5V (blue-white)
Pri motion ra +025 Sec motion ra +025
Pri motion dec +000 Sec motion dec +000
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
00214+6700 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 1658 11128 00 21 22 +67 00 20 STT 6 AB 2014 77 153 0.7 7.54 8.77 1.23 Y <===
Show 11128 00 21 22 +67 00 20 STF 26 AB,C 2020 42 115 13.1 7.54 9.92 2.38
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 1658 Constellation Cepheus SAO 11128 HIP 1700
Tycho2 4027-00522-1 Gaia DR2 528650348895302144 HD 1658 GC 427
ADS 293 BD BD+66 20 Distance 165.56 Distance ly 540.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)335.385y Periastron (T)1928.76y Semi-major axis (a)0.3935a
Eccentricity (e)0.9424 Inclination (i)128.3° Longitude of periastron (ω)182.7°
Node (Ω)149° Notesn ReferenceOle2001
Equinox Last observation1997 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 154.1 0.587
2001 154.0 0.591
2002 153.9 0.595
2003 153.8 0.599
2004 153.7 0.603
2005 153.6 0.607
2006 153.5 0.610
2007 153.4 0.614
2008 153.3 0.618
2009 153.2 0.621
2010 153.1 0.625
2011 153.1 0.628
2012 153.0 0.632
2013 152.9 0.635
2014 152.8 0.638
2015 152.7 0.642
2016 152.6 0.645
2017 152.5 0.648
2018 152.5 0.651
2019 152.4 0.654
2020 152.3 0.657
2021 152.2 0.660
2022 152.1 0.663
2023 152.1 0.666
2024 152.0 0.669
2025 151.9 0.671
2026 151.8 0.674
2027 151.8 0.677
2028 151.7 0.679
2029 151.6 0.682
2030 151.5 0.684


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



 
 


wds00214%2B6700a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic