23519+3753 STF 3042 (HD 223718)

Coord 2000	23519+3753		Discov num	STF3042		Comp			Coord arcsec 2000	23 51 52.40 +37 53 28.4
Date first	1823		Date last	2019		Obs	196
Pa first	90		Pa last	86.5		P.A. Now (θ)	86.5°
Sep first	5.0		Sep last	5.87		Sep. Now (ρ)	5.87"
Mag pri	7.62		Mag sec	7.75		delta mag (ΔM)	0.13		Spectral class	F5V+A5 (yellow-white/white)
Pri motion ra	-072		Sec motion ra	-072
Pri motion dec	-074		Sec motion dec	-074
Notes

Nature of this double is uncertain.

Name	HD 223718		Constellation	Andromeda		SAO	73565		HIP	117673
Tycho2	3233-02549-1		Gaia DR2	2881270705919758848		HD	223718		GC	33111
BD	BD+37 4898		Distance	72.57		Distance ly	236.72

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
23519+3753	STF3042		2006	165	87	5.9	7.62	7.75	F5V	D	235152.40+375328.4
23519+3753	STF3042		2007	168	87	5.6	7.62	7.75	F5V	D	235152.40+375328.4
23519+3753	STF3042		2010	169	86	5.7	7.62	7.75	F5V	D	235152.40+375328.4
23519+3753	STF3042		2014	175	87	5.5	7.62	7.75	F5V	D	235152.40+375328.4
23519+3753	STF3042		2015	176	86	5.7	7.62	7.75	F5V		235152.40+375328.4
23519+3753	STF3042		2017	188	86	5.8	7.62	7.75	F5V+A5		235152.40+375328.4
23519+3753	STF3042		2019	193	87	5.9	7.62	7.75	F5V+A5		235152.40+375328.4

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

Show	date	username	difficulty	separation	pa_estim	interest	notes
Show	23/09/21	Daedalus1	mean difficulty	separated	87		Bright, white pair, very evenly matched.

Show	date	username	difficulty	sep	sep_sigma	pa	pa_sigma	delta_mag	#	notes
Show	23/09/21	Daedalus1	mean difficulty	5.88	0.06	87.00	0.00	0.13	12	Seeing: Pickering 6, good

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