19028+3123 STF 2441 AC

19^h 02^m 41.26^s +31° 23' 58.5" P.A. 135.00 sep 101.2 mag 7.85,11.20 Sp A3 dist. 147.06 pc (479.71 l.y.)

Coord 2000	19028+3123	Discov num	STF2441	Comp	AC	Coord arcsec 2000	19 02 41.26 +31 23 58.5
Date first	1880	Date last	2015	Obs	17
Pa first	141	Pa last	135.3	P.A. Now (θ)	135.3°
Sep first	96.3	Sep last	101.193	Sep. Now (ρ)	101.193"
Mag pri	7.85	Mag sec	11.20	delta mag (ΔM)	3.35	Spectral class	A3 (white)
Pri motion ra	+001	Sec motion ra	-002
Pri motion dec	-010	Sec motion dec	+000
Notes	N (See Notes)

rPM=1.039

This double is not physical.

19028+3123 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 177279	67730	19 02 41 +31 23 58	STF 2441 AB	2019	69	263	6.3	7.85	9.78	1.93
Show		67730	19 02 41 +31 23 58	STF 2441 AC	2015	17	135	101.2	7.85	11.20	3.35		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Lyra	SAO	67730	HIP	93514	Tycho2	2639-02247-1
Gaia DR2	2042755547716505344	HD	177279	BD	BD+31 3441	Distance	147.06
Distance ly	479.71

WDS 19028+3123 STF 2441 AC : NOTES

discov_num	notes	refcode
STF2441	BDS 9008; H I 60 is probably same star.
	H 1 60.

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
19028+3123	STF2441	AC	2002	9	140	96.6	7.85	11.20		N D	190241.26+312358.5
19028+3123	STF2441	AC	2010	10	140	95.2	7.85	11.20		N D	190241.26+312358.5
19028+3123	STF2441	AC	2011	12	140	96.4	7.85	11.20		N D	190241.26+312358.5
19028+3123	STF2441	AC	2013	13	137	99.9	7.85	11.20	A3	N	190241.26+312358.5
19028+3123	STF2441	AC	2015	17	135	101.2	7.85	11.20	A3	N	190241.26+312358.5

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

WDS 19028+3123 STF 2441 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19028+3123 STF 2441 AC : MEASURES

No records found.

WDS 19028+3123 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 19028+3123 : ALADIN DSS IMAGE @ 19^h 02^m 41.26^s +31° 23' 58.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19028+3123 STF 2441 AC : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		19028+3123	STF2441	AB	263	6.3
Show		19028+3123	STF2441	AC	135	101.2
Show		19013+3132	LEP 161		114	9.1	21
Show		19014+3138	TDT1185		114	1.9	22
Show		19002+3122	HLM 14		137	12.7	27
Show		19058+3105	TDT1219		261	0.4	44
Show		19020+3210	HU 1296		195	0.1	47
Show		18598+3055	LEP 160		63	5.4	47
Show		19011+3210	GYL 13	AB	305	35.4	51
Show		19064+3144	HO 97	AB	15	0.8	52
Show		19064+3144	HJ 1366	AB,C	58	14.5	52
Show		19064+3144	HO 97	AB,D	302	35.9	52
Show		19064+3144	FYM 93	AB,E	203	29.2	52
Show		19064+3144	FYM 93	AB,F	80	36.5	52
Show		19063+3158	ES 2367		140	6.8	58
Show		19058+3214	GRV 245		347	50.0	65
Show		19009+3232	HO 92		40	1.3	73
Show		19062+3026	STF2454	AB	291	1.3	73
Show		19062+3026	DRD 2	AC	261	31.3	73
Show		19040+3011	TDT1206		268	2.6	75
Show		18569+3112	ES 2422		178	5.7	76
Show		19076+3043	BKO 59	AB	48	10.1	76
Show		19076+3043	BKO 59	AD	175	6.0	76
Show		19076+3043	BKO 59	BC	88	7.3	76
Show		19079+3043	HLM 16	AB	309	8.0	78
Show		19079+3043	J 2945	AC	192	9.6	78
Show		19079+3043	ABH 110	AD	78	52.6	78
Show		19079+3043	ABH 110	AE	112	64.1	78
Show		19079+3043	ABH 110	AF	288	34.0	78
Show		19079+3043	HLM 16	AG	246	55.1	78
Show		19079+3043	ABH 110	AH	316	91.1	78
Show		19079+3043	ABH 110	AI	25	55.8	78
Show		19079+3043	ABH 110	AJ	225	83.0	78
Show		19079+3043	FYM 96	AK	140	43.7	78
Show		19079+3043	FYM 96	AL	222	57.0	78
Show		19079+3043	FYM 96	AM	130	39.2	78
Show		18582+3216	GYL 12	AB	146	20.3	78
Show		18582+3216	BKO 56	AC	19	11.3	78
Show		18579+3212	BKO 55		161	15.2	78
Show		19079+3043	FYM 96	KM	11	8.1	78
Show		19081+3048	STF2467		262	10.5	79
Show		19078+3040	STF2465		249	1.2	79
Show		18576+3209	A 260		246	0.9	80
Show		19051+3238	LEP 162		243	4.5	81
Show		18589+3229	BU 649		1	1.8	81
Show		19042+3245	BRD 4		310	2.6	84
Show		18590+3235	MLB 757		121	5.2	84
Show		19088+3053	HO 571	AB	214	12.4	85
Show		19088+3053	BKO 60	AC	165	11.6	85
Show		19070+3018	TDT1229		340	2.5	86
Show		19059+3004	L 27		190	1.0	86

WDS 19028+3123 : COMPONENTS

	A	B
B	pa=261.8° sep=5.35"
C	pa=139.8° sep=94.16"	pa=137.1° sep=97.10"

19028+3123 A

Name	HD 177279	Coord arcsec 2000	190241.26+312358.5	Mag	7.85	Spectral class	A3 (white)
PmRA	1.00	PmDE	-10.0	SAO	67730	HIP	93514
Tycho2	2639-02247-1	HD	177279	GC	26200	BD	BD+31 3441

Tycho2

Tycho2	2639-02247-1	Pflag		RAmdeg	285.67198223	DEmdeg	31.39955991
PmRA	21.1	PmDE	-10.3	E RAmdeg	5	E DEmdeg	5
E pmRA	3.2	E pmDE	2.7	EpRAm	1991.37	EpDEm	1991.51
Num	4	Q RAmdeg	6.4	Q DEmdeg	0.6	Q pmRA	6.5
Q pmDE	0.7	BTmag	8.176	E BTmag	0.016	VTmag	7.852
E VTmag	0.011	Prox	60	TYC	T	HIP	93514
CCDM	A	RAdeg	285.67192417	DEdeg	31.39958389	EpRA 1990	1.43
EpDE 1990	1.63	E RAdeg	4.9	E DEdeg	4.7	Posflg
Corr	0.0

SAO

SAO	67730	DelFlag		RA1950		PmRA1950	0.0001
DE1950		PmDE1950	0.004	Vmag	8.2	SpType	A3
Double code		Source	70	CatNum	26200	DM	BD+31 3441
DMcomp		BDsup		HD	177279	M HD	0
GC	26200	RA1950rad	4.97759116	DE1950rad	0.54673783	PmRA2000	0.0003
PmDE2000	0.003

Hipparcos

Catalog	H	HIP	93514	Proxy	H	RAhms	19 02 41.26
DEdms	+31 23 58.5	Vmag	7.68	VarFlag		R Vmag	G
RAdeg	285.672	DEdeg	31.3996	AstroRef	A	Plx	7.27
CCDM	19027+3123	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	267	Rho	6.033	HD	177279	BD	BD+31 3441
CD		CP		Dm number	+31 3441	VIred	0.46
SpType	A3...	R SpType		Coord arcsec 2000	190241.26+312358.5

Hipparcos 2

HIP	93514	Sn	15	So	3	Nc	2
RArad	4.9859156772	DErad	0.5480261486	Plx	6.8	PmRA	-9.02
PmDE	-7.95	E RArad	0.46	E DErad	0.56	E Plx	0.69
E pmRA	0.63	E pmDE	0.75	Hpmag	7.7666	E Hpmag	0.0011
SHp	0.012	VA	0	BV	0.393	E BV	0.015
VI	0.46

19028+3123 B

Coord arcsec 2000	190240.85+312357.7		Mag	9.78		PmRA	-21.00		PmDE	-33.0
Calc delta mag	1.93		Calc coord	yes

19028+3123 C

Coord arcsec 2000	190246.01+312246.6		Mag	11.2		PmRA	-2.00		PmDE	0.0
Tycho2	2639-02007-1		Calc delta mag	3.35		Calc coord	yes

Tycho2

Tycho2	2639-02007-1	Pflag		RAmdeg	285.69200075	DEmdeg	31.37899676
PmRA	-0.9	PmDE	-3.6	E RAmdeg	41	E DEmdeg	30
E pmRA	1.9	E pmDE	1.9	EpRAm	1982.57	EpDEm	1982.16
Num	7	Q RAmdeg	1.6	Q DEmdeg	1.5	Q pmRA	1.6
Q pmDE	1.5	BTmag	11.517	E BTmag	0.071	VTmag	11.200
E VTmag	0.083	Prox	964	TYC	T	HIP
CCDM		RAdeg	285.69199750	DEdeg	31.37900083	EpRA 1990	1.44
EpDE 1990	1.60	E RAdeg	46.4	E DEdeg	45.4	Posflg
Corr	-0.2