23280+3333 STF 3015 (HD 220987)

23^h 28^m 02.59^s +33° 33' 32.6" P.A. 189.00 sep 2.9 mag 9.53,9.77 Sp A5

Coord 2000	23280+3333	Discov num	STF3015	Comp		Coord arcsec 2000	23 28 02.59 +33 33 32.6
Date first	1827	Date last	2016	Obs	33
Pa first	198	Pa last	189.3	P.A. Now (θ)	189.3°
Sep first	3.0	Sep last	2.93	Sep. Now (ρ)	2.93"
Mag pri	9.53	Mag sec	9.77	delta mag (ΔM)	0.24	Spectral class	A5 (white)
Pri motion ra	-022	Sec motion ra	-022
Pri motion dec	-017	Sec motion dec	-017
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 220987		Constellation	Pegasus		SAO	73274		Tycho2	2769-00292-2
Gaia DR2	1911828280052876032		HD	220987		GC	32649		ADS	16774

WDS 23280+3333 STF 3015 (HD 220987) : NOTES

No records found.

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
23280+3333	STF3015		1999	23	190	3.0	9.53	9.77	A5		232802.59+333332.6
23280+3333	STF3015		2008	25	190	2.9	9.53	9.77	A5		232802.59+333332.6
23280+3333	STF3015		2009	28	190	2.9	9.53	9.77	A5		232802.59+333332.6
23280+3333	STF3015		2011	31	190	2.9	9.53	9.77	A5		232802.59+333332.6
23280+3333	STF3015		2016	31	190	3.0	9.53	9.77	A5		232802.59+333332.6

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WDS 23280+3333 STF 3015 (HD 220987) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 23280+3333 STF 3015 (HD 220987) : MEASURES

No records found.

WDS 23280+3333 (HD 220987) : VIRTUAL EYEPIECE

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WDS 23280+3333 (HD 220987) : 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.