21346+5906 STF 2810 (HD 239705)

Coord 2000	21346+5906		Discov num	STF2810		Comp			Coord arcsec 2000	21 34 34.88 +59 06 23.8
Date first	1828		Date last	2019		Obs	42
Pa first	293		Pa last	290.1		P.A. Now (θ)	290.1°
Sep first	15.0		Sep last	16.82		Sep. Now (ρ)	16.82"
Mag pri	8.43		Mag sec	9.04		delta mag (ΔM)	0.61		Spectral class	F8 (yellow-white)
Pri motion ra	+023		Sec motion ra	+025
Pri motion dec	+004		Sec motion dec	+007
Notes	T (Parallax indicates physical)

rPM=0.139 (< 0.3, Physical double) This double is physical.

Name	HD 239705		Constellation	Cepheus		SAO	33547		HIP	106524
Tycho2	3979-00421-1		Gaia DR2	2179605128596535936		HD	239705		GC	30230
BD	BD+58 2291		Distance	75.64		Distance ly	246.74

No records found.

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.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21346+5906	STF2810		2002	31	290	17.0	8.43	9.04	F8	D	213434.88+590623.8
21346+5906	STF2810		2003	33	291	16.9	8.43	9.04	F8	D	213434.88+590623.8
21346+5906	STF2810		2012	34	290	16.8	8.43	9.04	F8	D	213434.88+590623.8
21346+5906	STF2810		2015	36	291	16.9	8.43	9.04	F8		213434.88+590623.8
21346+5906	STF2810		2019	41	290	16.8	8.43	9.04	F8	T	213434.88+590623.8

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No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS