18277+1918 STF 2319 AC

Coord 2000	18277+1918		Discov num	STF2319		Comp	AC		Coord arcsec 2000	18 27 43.94 +19 17 43.9
Date first	1829		Date last	2018		Obs	39
Pa first	279		Pa last	268.4		P.A. Now (θ)	268.4°
Sep first	38.4		Sep last	43.121		Sep. Now (ρ)	43.121"
Mag pri	8.41		Mag sec	10.74		delta mag (ΔM)	2.33		Spectral class	F5 (yellow-white)
Pri motion ra	+020		Sec motion ra	-006
Pri motion dec	+022		Sec motion dec	-014
Notes

rPM=1.494 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 170267	103740	18 27 44 +19 17 44	STF 2319 AB	2019	121	190	5.3	8.41	8.23	0.18
Show		103740	18 27 44 +19 17 44	STF 2319 AC	2018	39	268	43.1	8.41	10.74	2.33		<===
Show		103740	18 27 44 +19 17 44	STF 2319 AD	2015	14	71	156.7	8.41	9.17	0.76
Show			18 27 44 +19 17 39	STF 2319 BC	2018	35	276	42.4	8.23	10.74	2.51

Quadruple system
4 estimated visually detectable stars in this system

Constellation

Hercules

SAO

103740

Tycho2

1577-01902-1

Gaia DR2

4525128550381295616

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
18277+1918	STF2319	AC	2006	33	274	42.7	8.41	10.74		D	182743.94+191743.8
18277+1918	STF2319	AC	2009	34	269	43.0	8.41	10.74		D	182743.94+191743.8
18277+1918	STF2319	AC	2012	35	269	43.0	8.41	10.74		D	182743.94+191743.8
18277+1918	STF2319	AC	2015	34	269	42.9	8.41	10.74	F5		182743.94+191743.9
18277+1918	STF2319	AC	2018	35	269	43.1	8.41	10.74	F5		182743.94+191743.9

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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