19389-1020 STF 2547 AB (HD 185342)

Coord 2000	19389-1020		Discov num	STF2547		Comp	AB		Coord arcsec 2000	19 38 56.50 -10 20 20.6
Date first	1830		Date last	2016		Obs	40
Pa first	332		Pa last	330.4		P.A. Now (θ)	330.4°
Sep first	20.7		Sep last	20.831		Sep. Now (ρ)	20.831"
Mag pri	8.12		Mag sec	9.53		delta mag (ΔM)	1.41		Spectral class	A0.5V+F2V (white/yellow-white)
Pri motion ra	-001		Sec motion ra	-001
Pri motion dec	-010		Sec motion dec	-010
Notes	N T (See Notes, Parallax indicates physical)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 185342	162847	19 38 56 -10 20 21	STF 2547 AB	2016	40	330	20.8	8.12	9.53	1.41		<===
Show		162847	19 38 56 -10 20 21	STF 2547 AC	2015	18	141	49.6	8.12	11.14	3.02

Triple system
3 estimated visually detectable stars in this system

Name	HD 185342		Constellation	Aquila		SAO	162847		HIP	96643
Tycho2	5727-02382-1		Gaia DR2	4193267834852040960		HD	185342		GC	27171
BD	BD-10 5142		Distance	31.9		Distance ly	104.06

discov_num	notes	refcode
STF2547	B is BD-10@5142.

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
19389-1020	STF2547	AB	2007	29	331	20.8	8.12	9.53	A0	N D	193856.50-102020.6
19389-1020	STF2547	AB	2012	32	330	20.8	8.12	9.53	A0	N D	193856.50-102020.6
19389-1020	STF2547	AB	2013	34	331	20.8	8.12	9.53	A0	N	193856.50-102020.6
19389-1020	STF2547	AB	2014	35	330	20.8	8.12	9.53	A0	N	193856.50-102020.6
19389-1020	STF2547	AB	2015	36	330	20.8	8.12	9.53	A0	N W	193856.50-102020.6
19389-1020	STF2547	AB	2016	40	330	20.8	8.12	9.53	A0.5V+F2V	NT	193856.50-102020.6

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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