23120-1156 STF 2988 (HD 218928)

23^h 11^m 59.56^s -11° 56' 00.9" P.A. 97.00 sep 3.5 mag 7.93,7.95 Sp G8III dist. 208.33 pc (679.57 l.y.)

Coord 2000	23120-1156	Discov num	STF2988	Comp		Coord arcsec 2000	23 11 59.56 -11 56 00.9
Date first	1830	Date last	2016	Obs	99
Pa first	101	Pa last	97	P.A. Now (θ)	97°
Sep first	3.7	Sep last	3.533	Sep. Now (ρ)	3.533"
Mag pri	7.93	Mag sec	7.95	delta mag (ΔM)	0.02	Spectral class	G8III (yellow)
Pri motion ra	+020	Sec motion ra	+020
Pri motion dec	-030	Sec motion dec	-025
Notes

rPM=0.139 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 218928	Constellation	Aquarius	SAO	165551	HIP	114536
Tycho2	5824-00496-1	Gaia DR2	2413051302797084416	HD	218928	GC	32304
ADS	16579	BD	BD-12 6444	Distance	208.33	Distance ly	679.57

WDS 23120-1156 STF 2988 (HD 218928) : 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
23120-1156	STF2988		2007	98	98	3.6	7.93	7.95	G8III	D	231159.56-115600.9
23120-1156	STF2988		2008	99	98	3.6	7.93	7.95	G8III	D	231159.56-115600.9
23120-1156	STF2988		2012	101	98	3.5	7.93	7.95	G8III	D	231159.56-115600.9
23120-1156	STF2988		2016	96	98	3.5	7.93	7.95	G8III		231159.56-115600.9

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

WDS 23120-1156 STF 2988 (HD 218928) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 23120-1156 STF 2988 (HD 218928) : MEASURES

No records found.

WDS 23120-1156 (HD 218928) : 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 23120-1156 (HD 218928) : ALADIN DSS IMAGE @ 23^h 11^m 59.56^s -11° 56' 00.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 23120-1156 STF 2988 (HD 218928) : 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		23120-1156	STF2988		97	3.5
Show		23136-1112	GWP3255		125	77.2	50
Show		23139-1241	GWP3257		142	20.7	53
Show		23120-1251	HJ 305		104	8.8	57
Show		23157-1221	LDS2977		101	133.8	61
Show		23096-1106	GWP3244		211	18.9	61
Show		23122-1303	DAM1273		134	20.4	67
Show		23126-1305	BRT2800		172	2.4	71
Show		23167-1158	BRT2801		234	2.7	71
Show		23147-1041	BU 715	AB	256	3.8	85
Show		23147-1041	FOX 271	AC	225	31.4	85
Show		23147-1041	FOX 271	AD	131	114.1	85
Show		23071-1247	LDS6004		342	195.5	89
Show		23080-1304	HJ 3171		39	23.5	90
Show		23138-1324	BU 181	AB	310	1.5	92
Show		23138-1324	BU 181	AC	247	18.8	92
Show		23168-1051	UC 4915	AB	18	25.0	97
Show		23168-1051	GWP3268	AC	282	296.1	97
Show		23054-1154	LDS6001		90	123.1	97
Show		23134-1013	CVR 980		334	22.5	106
Show		23091-1018	CVR1712		359	3.3	107
Show		23188-1113	GWP3277		22	32.0	109
Show		23045-1143	BRT2799		192	3.6	111
Show		23076-1024	LDS2967		266	101.1	113
Show		23042-1153	LDS2964		15	8.9	115
Show		23143-1006	SLW1312		297	58.7	115
Show		23195-1234	BRT2803		104	3.8	117
Show		23090-1356	GWP3242		305	82.6	128
Show		23175-1339	WIS 380		14	395.4	131
Show		23050-1318	GWP3229		86	26.1	131
Show		23171-1349	BU 182	AB	228	0.7	138
Show		23171-1349	LDS6393	AB,E	52	18.4	138
Show		23171-1349	BU 182	AB,C	41	177.3	138
Show		23171-1349	BU 182	AB,D	102	87.3	138
Show		23191-1328	MCA 74	Aa,Ab	356	0.2	139
Show		23191-1328	STF2998	AB	352	12.1	139
Show		23133-1414	LDS2973		350	5.0	140
Show		23072-0955	GWP3236		202	11.5	140
Show		23147-0941	OCC 60		-1	0.1	141
Show		23027-1114	BU 481		58	1.8	143
Show		23022-1152	TDT3848		230	0.7	144
Show		23184-1346	GWP3272		74	84.8	145
Show		23023-1116	ARN 80		270	79.0	145
Show		23024-1119	STF2970		38	8.5	146
Show		23218-1217	HU 95		287	0.5	146
Show		23170-1404	BRT2802		104	3.1	149
Show		23077-0940	HU 94		251	3.8	150
Show		23117-1432	UC 4900		30	27.5	156
Show		23126-0919	UC 4901		269	21.8	157
Show		23029-1320	HDS3283	AB	273	0.1	158
Show		23191-0955	LDS6025		99	124.0	159

WDS 23120-1156 : COMPONENTS

	A
B	pa=97.2° sep=3.46"

23120-1156 A

Componente originario normalizzato	AB	Name	HD 218928	Coord arcsec 2000	231159.56-115600.9	Mag	7.93
Spectral class	G8III (yellow)	PmRA	20.00	PmDE	-30.0	SAO	165551
HIP	114536	Tycho2	5824-01239-1	HD	218928	GC	32304
ADS	16579	BD	BD-12 6444

Tycho2

Tycho2	5824-01239-1	Pflag		RAmdeg	347.99921536	DEmdeg	-11.93367806
PmRA	19.5	PmDE	-25.3	E RAmdeg	15	E DEmdeg	11
E pmRA	1.3	E pmDE	1.2	EpRAm	1989.78	EpDEm	1990.60
Num	8	Q RAmdeg	1.9	Q DEmdeg	2.0	Q pmRA	2.0
Q pmDE	2.1	BTmag	9.125	E BTmag	0.031	VTmag	7.948
E VTmag	0.019	Prox	37	TYC	T	HIP	114536
CCDM	A	RAdeg	347.99916917	DEdeg	-11.93362083	EpRA 1990	1.79
EpDE 1990	1.80	E RAdeg	14.9	E DEdeg	11.1	Posflg
Corr	-0.3

SAO

SAO	165551	DelFlag		RA1950		PmRA1950	0.0015
DE1950		PmDE1950	-0.021	Vmag	7	SpType	K0
Double code		Source	70	CatNum	32304	DM	BD-12 6444
DMcomp		BDsup		HD	218928	M HD	0
GC	32304	RA1950rad	6.06231381	DE1950rad	-0.21302028	PmRA2000	0.0017
PmDE2000	-0.024

Hipparcos

Catalog	H	HIP	114536	Proxy	H	RAhms	23 11 59.56
DEdms	-11 56 00.6	Vmag	7	VarFlag		R Vmag	H
RAdeg	347.998	DEdeg	-11.9335	AstroRef	B	Plx	5.54
CCDM	23120-1156	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	B	M HIP	BA
Theta	98	Rho	3.557	HD	218928	BD	BD-12 6444
CD		CP		Dm number	-12 6444	VIred	1.06
SpType	G8III	R SpType		Coord arcsec 2000	231159.56-115600.6

Hipparcos 2

HIP	114536	Sn	15	So	3	Nc	2
RArad	6.0737135026	DErad	-0.2082786894	Plx	4.8	PmRA	22.71
PmDE	-26.26	E RArad	1.52	E DErad	1.44	E Plx	1.75
E pmRA	1.63	E pmDE	1.85	Hpmag	7.1674	E Hpmag	0.0021
SHp	0.012	VA	0	BV	1.03	E BV	0.043
VI	1

CCDM

Ccdm	23120-1156	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.30	DDEs	-0.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.8	Sp	K0	PmNote	*
PmRA	24	PmDE	-21	Dm number	-12 6444	Cat1	BD
Name2	165551	Cat2	SAO	HD	218928	M HD
ADS BDS	A16579	M ADS BDS		N IDS		IDS	23068S1229A
HIC	114536

23120-1156 B

Componente originario normalizzato	AB		Coord arcsec 2000	231159.79-115601.3		Mag	7.95		PmRA	20.00
PmDE	-25.0		Calc delta mag	0.02		Calc coord	yes

CCDM

Ccdm	23120-1156	RComp		Comp	B	Note1
Note2		Discov num	STF2988	DRAs		DDEs
R dRAs		Year	1830	Theta	279	Rho	3.6
Obs	99	Vmag	7.8	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A16579	M ADS BDS		N IDS		IDS	23068S1229B
HIC	114536