23186+6807 STF 3001 AB (Omi Cep)

 
 
23h 18m 37.41s +68° 06' 41.1" P.A. 224.00 sep 3.4 mag 4.97,7.28 Sp G8III dist. 62.27 pc (203.12 l.y.)
 
 
Coord 2000 23186+6807 Discov num STF3001 Comp AB Coord arcsec 2000 23 18 37.41 +68 06 41.1
Date first 1828 Date last 2022 Obs 240
Pa first 174 Pa last 223.8 P.A. Now (θ) 223.8°
Sep first 2.0 Sep last 3.44 Sep. Now (ρ) 3.44"
Mag pri 4.97 Mag sec 7.28 delta mag (ΔM) 2.31 Spectral class G8III (yellow)
Pri motion ra +053 Sec motion ra +046
Pri motion dec +024 Sec motion dec +013
Notes N O (See Notes, Orbital solution)
rPM=0.224 (< 0.3, Physical double)
This double is physical.
 
 
23186+6807 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Omi Cep 20554 23 18 37 +68 06 41 STF 3001 AB 2022 240 224 3.4 4.97 7.28 2.31 Y <===
Show 20554 23 18 37 +68 06 41 STF 3001 AC 2012 2 356 44.0 4.97 12.90 7.93
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Omi Cep Var name NSV14495 Cep Constellation Cepheus SAO 20554
HIP 115088 Tycho2 4478-01361-1 Gaia DR2 2213911506281421824 HD 219916
HR 8872 GC 32463 ADS 16666 BD BD+67 1514
Bayer Omicron Cephei Bayer name Omi Cep Flamsteed 34 Cephei Flamsteed name 34 Cep
Distance 62.27 Distance ly 203.12 Bayer greek ο Cep
 
 
ORBITAL ELEMENTS
 
 
Period (P)2198.7243y± 954.5756 Periastron (T)1744.0458y± 359.5156 Semi-major axis (a)9.52716a± 5.13334
Eccentricity (e)0.91375± 0.1455 Inclination (i)71.159°± 12.139 Longitude of periastron (ω)289.955°± 31.201
Node (Ω)137.169°± 64.522 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 219.8 3.303
2001 220.0 3.310
2002 220.2 3.316
2003 220.3 3.323
2004 220.5 3.329
2005 220.7 3.335
2006 220.9 3.342
2007 221.0 3.348
2008 221.2 3.355
2009 221.4 3.361
2010 221.5 3.368
2011 221.7 3.374
2012 221.9 3.381
2013 222.1 3.387
2014 222.2 3.394
2015 222.4 3.400
2016 222.6 3.407
2017 222.7 3.413
2018 222.9 3.420
2019 223.1 3.426
2020 223.2 3.433
2021 223.4 3.440
2022 223.6 3.446
2023 223.7 3.453
2024 223.9 3.459
2025 224.1 3.466
2026 224.2 3.473
2027 224.4 3.479
2028 224.5 3.486
2029 224.7 3.492
2030 224.9 3.499


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


 
  


wds23186%2B6807c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 23186+6807 STF 3001 AB (Omi Cep) : NOTES
 
 
discov_num notes refcode
STF3001 omi Cep = 34 Cep. A premature orbit has been computed.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
System mass 3.65 +-0.60 Msun. G8III spectral type of primary
confirmed. Doc2003d
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Doc2003d orb - Docobo, J.A., Tamazian, V.S., Andrade, M., & Melikian, N.D. 2003AJ....126.1522D
Doc2003d AJ 126, 1522, 2003
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
23186+6807 STF3001 AB 2007 216 221 3.2 4.97 7.28 G8III NOD 231837.41+680641.1
23186+6807 STF3001 AB 2011 223 222 3.2 4.97 7.28 G8III NOD 231837.41+680641.1
23186+6807 STF3001 AB 2012 224 222 3.2 4.97 7.28 G8III NOD 231837.41+680641.1
23186+6807 STF3001 AB 2014 229 222 3.5 4.97 7.28 G8III NO 231837.41+680641.1
23186+6807 STF3001 AB 2017 233 222 3.3 4.97 7.28 G8III NO 231837.41+680641.1
23186+6807 STF3001 AB 2018 234 224 3.4 4.97 7.28 G8III NO 231837.41+680641.1
23186+6807 STF3001 AB 2020 239 223 3.4 4.97 7.28 G8III NO 231837.41+680641.1
23186+6807 STF3001 AB 2022 240 224 3.4 4.97 7.28 G8III NO 231837.41+680641.1

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 23186+6807 STF 3001 AB (Omi Cep) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/11/14 Daedalus1 mean difficulty separated 226 very interesting A very classy double! Easily separated. Primary very much brighter than the companion. Both stars the same color: yellow-white.

 
 
WDS 23186+6807 STF 3001 AB (Omi Cep) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 22/11/14 Daedalus1 mean difficulty 3.60 0.07 226.00 0.00 2.31 12 Pickering 6, good.
 
 
WDS 23186+6807 (Omi Cep) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 23186+6807 (Omi Cep) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.