12563+5406 STF 1695 AB (HD 112486)

 
 
12h 56m 17.64s +54° 05' 58.1" P.A. 280.00 sep 3.7 mag 6.04,7.75 Sp A5m dist. 86.66 pc (282.68 l.y.)
 
 
Coord 2000 12563+5406 Discov num STF1695 Comp AB Coord arcsec 2000 12 56 17.64 +54 05 58.1
Date first 1823 Date last 2020 Obs 124
Pa first 285 Pa last 279.7 P.A. Now (θ) 279.7°
Sep first 4.1 Sep last 3.73 Sep. Now (ρ) 3.73"
Mag pri 6.04 Mag sec 7.75 delta mag (ΔM) 1.71 Spectral class A5m (white)
Pri motion ra -062 Sec motion ra -087
Pri motion dec -002 Sec motion dec +003
Notes N (See Notes)
rPM=0.293 (< 0.3, Physical double)
This double is physical.
 
 
12563+5406 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 112486 28572 12 56 18 +54 05 58 STF 1695 AB 2020 124 280 3.7 6.04 7.75 1.71 <===
Show 28572 12 56 18 +54 05 58 STF 1695 AC 2015 9 139 131.7 6.04 12.32 6.28
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 112486 Constellation Ursa Major SAO 28572 HIP 63143
Tycho2 3842-01310-1 Gaia DR2 1570234172198878848 HD 112486 HR 4917
GC 17567 ADS 8710 BD BD+54 1556 Distance 86.66
Distance ly 282.68
 
 
WDS 12563+5406 STF 1695 AB (HD 112486) : NOTES
 
 
discov_num notes refcode
STF1695 A spectroscopic binary, P = 5.13d.
 
 
REFERENCES
 
 
refcode metd author reference
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12563+5406 STF1695 AB 2008 91 281 3.5 6.04 7.75 A5m N D 125617.64+540558.1
12563+5406 STF1695 AB 2014 98 280 3.8 6.04 7.75 A5m N D 125617.64+540558.1
12563+5406 STF1695 AB 2015 99 282 3.6 6.04 7.75 A5m N D 125617.64+540558.1
12563+5406 STF1695 AB 2017 110 281 3.9 6.04 7.75 A5m N 125617.64+540558.1
12563+5406 STF1695 AB 2019 118 281 3.8 6.04 7.75 A5m N 125617.64+540558.1
12563+5406 STF1695 AB 2020 122 280 3.7 6.04 7.75 A5m N 125617.64+540558.1

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WDS 12563+5406 STF 1695 AB (HD 112486) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/05/30 Daedalus1 mean difficulty separated 280   Beautiful pair of pure white stars. Primary is very much brighter.
Show 11/04/21 voyager75 easy separated   very interesting Una bellissima doppia, davvero notevole l'effetto ottica del calo di magnitudine della secondaria, mi spingo fino a 166X per gustarla meglio.

 
 
WDS 12563+5406 STF 1695 AB (HD 112486) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/05/30 Daedalus1 mean difficulty 3.73 0.05 280.00 0.00 1.69 12 Seeing: Pickering 7, good.
 
 
WDS 12563+5406 (HD 112486) : VIRTUAL EYEPIECE
 
 

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Radius:
Components only
 
 
WDS 12563+5406 (HD 112486) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.