20527+0720 STF 2733 (HD 198812)

20^h 52^m 42.97^s +07° 19' 47.6" P.A. 145.00 sep 40.2 mag 8.39,8.58 Sp A

Coord 2000	20527+0720	Discov num	STF2733	Comp		Coord arcsec 2000	20 52 42.97 +07 19 47.6
Date first	1800	Date last	2015	Obs	44
Pa first	138	Pa last	144.5	P.A. Now (θ)	144.5°
Sep first	43.3	Sep last	40.21	Sep. Now (ρ)	40.21"
Mag pri	8.39	Mag sec	8.58	delta mag (ΔM)	0.19	Spectral class	A (white)
Pri motion ra	+044	Sec motion ra	+042
Pri motion dec	-014	Sec motion dec	-015
Notes	N T (See Notes, Parallax indicates physical)

rPM=0.048 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 198812		Constellation	Delphinus		SAO	126322		Tycho2	0525-00124-1
Gaia DR2	1737611865223480704		HD	198812		GC	29121		DM	BD+06 4675

WDS 20527+0720 STF 2733 (HD 198812) : NOTES

discov_num	notes	refcode
STF2733	B is BD+06@4675.

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
20527+0720	STF2733		2003	36	145	40.5	8.39	8.58	A	N D	205242.97+071947.6
20527+0720	STF2733		2014	38	144	39.7	8.39	8.58	A	N	205242.97+071947.6
20527+0720	STF2733		2015	40	145	40.2	8.39	8.58	A	N	205242.97+071947.6

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WDS 20527+0720 STF 2733 (HD 198812) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20527+0720 STF 2733 (HD 198812) : MEASURES

No records found.

WDS 20527+0720 (HD 198812) : VIRTUAL EYEPIECE

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WDS 20527+0720 (HD 198812) : ALADIN DSS IMAGE @

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

Error -22130
Not valid ID.

Error -22130
Not valid ID.
Error -27220
Not valid ID.