04221-0957 STF 537 (HD 27708)

04^h 22^m 03.68^s -09° 57' 06.9" P.A. 353.00 sep 18.9 mag 8.36,10.79 Sp K5 dist. 325.73 pc (1062.53 l.y.)

Coord 2000	04221-0957	Discov num	STF 537	Comp		Coord arcsec 2000	04 22 03.68 -09 57 06.9
Date first	1831	Date last	2015	Obs	26
Pa first	335	Pa last	353	P.A. Now (θ)	353°
Sep first	12.0	Sep last	18.941	Sep. Now (ρ)	18.941"
Mag pri	8.36	Mag sec	10.79	delta mag (ΔM)	2.43	Spectral class	K5 (yellow-orange)
Pri motion ra	-007	Sec motion ra	+013
Pri motion dec	-038	Sec motion dec	-005
Notes

rPM=0.999

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 27708	Constellation	Eridanus	SAO	149581	HIP	20401
Tycho2	5313-01248-1	Gaia DR2	3191655141860155648	HD	27708	BD	BD-10 902
Distance	325.73	Distance ly	1062.53

WDS 04221-0957 STF 537 (HD 27708) : 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
04221-0957	STF 537		2007	21	352	18.8	8.36	10.79	K5	D	042203.68-095706.9
04221-0957	STF 537		2010	23	353	18.0	8.36	10.79	K5		042203.68-095706.9
04221-0957	STF 537		2015	24	353	18.9	8.36	10.79	K5		042203.68-095706.9

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

WDS 04221-0957 STF 537 (HD 27708) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04221-0957 STF 537 (HD 27708) : MEASURES

No records found.

WDS 04221-0957 (HD 27708) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 04221-0957 (HD 27708) : ALADIN DSS IMAGE @ 04^h 22^m 03.68^s -09° 57' 06.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04221-0957 STF 537 (HD 27708) : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		04221-0957	STF 537		353	18.9
Show		04217-1001	UC 1153		293	12.8	7
Show		04212-0933	RST4237		332	1.6	28
Show		04202-1030	HDS 556		166	0.3	43
Show		04211-0915	KPP1990		171	15.7	45
Show		04253-0932	GAL 368		307	22.5	56
Show		04202-0902	SKF 423		300	18.2	62
Show		04178-0948	GWP 576		2	46.5	64
Show		04211-0851	A 472		261	3.2	68
Show		04239-1102	GAL 367		124	14.6	71
Show		04264-1033	TOK 485		69	999.9	74
Show		04166-1005	BU 548		345	6.2	82
Show		04247-0845	STF 544	AB	352	3.3	82
Show		04247-0845	FOX 138	AC	77	151.4	82
Show		04276-0933	A 474		176	0.7	86
Show		04261-1059	GAL 369		330	26.1	88
Show		04232-1135	TOB 366	BC	8	4.9	97
Show		04232-1135	GAL 366	AB	323	23.7	97
Show		04232-1135	TOB 366	AD	208	2.1	97
Show		04281-1033	GAL 370		174	20.2	98
Show		04148-1004	UC 1138		114	91.1	108
Show		04278-1107	HDS 572		182	0.0	110
Show		04298-0949	LDS3592		247	39.2	115
Show		04144-1015	STF 516	AB	143	6.4	115
Show		04144-1015	STF 516	AC	157	133.7	115
Show		04143-0939	GWP 568	AB	277	82.0	117
Show		04143-0939	GWP 569	AC	219	757.8	117
Show		04188-1144	HDS 548		353	0.2	118
Show		04209-1156	GAL 365		358	17.1	120
Show		04140-0946	GWP 567		197	15.5	121
Show		04297-1043	GAL 134		210	14.6	122
Show		04176-1140	KPP3563		352	1.7	123
Show		04176-0813	KPP2455		37	21.7	124
Show		04138-0921	RST4234		61	0.8	128
Show		04165-1135	BRT2635		315	4.2	128
Show		04133-0928	HJ 3626		38	20.5	133
Show		04133-0931	FOX 6		4	2.3	133
Show		04233-0742	HO 331		350	15.8	137
Show		04286-1134	TDS2862		316	0.5	137
Show		04314-0934	GAL 372		199	34.4	139
Show		04307-0858	KPP1360		340	10.2	141
Show		04270-1200	TDS2850		342	2.0	144
Show		04309-0849	KO 2		340	19.8	147
Show		04126-0901	KPP2264		116	18.9	151
Show		04322-0936	GAL 141		336	7.3	152
Show		04129-1107	HDS 534		346	0.2	152
Show		04120-0916	A 471		223	0.4	154
Show		04287-1158	BU 549		190	8.4	155
Show		04190-0725	STF 527		196	6.3	159
Show		04319-0851	HJ 2234		270	40.7	161
Show		04328-1028	GWP 595		205	58.8	161

WDS 04221-0957 : COMPONENTS

	A
B	pa=353.1° sep=18.94"

04221-0957 A

Componente originario normalizzato	AB	Name	HD 27708	Coord arcsec 2000	042203.68-095706.9	Mag	8.36
Spectral class	K5 (yellow-orange)	PmRA	-7.00	PmDE	-38.0	SAO	149581
HIP	20401	Tycho2	5313-01248-1	HD	27708	BD	BD-10 902

Tycho2

Tycho2	5313-01248-1	Pflag		RAmdeg	65.51535239	DEmdeg	-9.95190704
PmRA	-7.4	PmDE	-38.3	E RAmdeg	7	E DEmdeg	9
E pmRA	1.1	E pmDE	1.4	EpRAm	1990.55	EpDEm	1990.44
Num	10	Q RAmdeg	1.1	Q DEmdeg	0.9	Q pmRA	1.2
Q pmDE	0.9	BTmag	10.110	E BTmag	0.027	VTmag	8.363
E VTmag	0.013	Prox	183	TYC	T	HIP	20401
CCDM	A	RAdeg	65.51537000	DEdeg	-9.95181361	EpRA 1990	1.59
EpDE 1990	1.23	E RAdeg	7.3	E DEdeg	8.8	Posflg
Corr	-0.1

SAO

SAO	149581	DelFlag		RA1950		PmRA1950	-0.001
DE1950		PmDE1950	-0.014	Vmag	8.3	SpType	K5
Double code		Source	20	CatNum	1047	DM	BD-10 902
DMcomp		BDsup		HD	27708	M HD	0
GC		RA1950rad	1.13305747	DE1950rad	-0.17571963	PmRA2000	-0.0006
PmDE2000	-0.014

Hipparcos

Catalog	H	HIP	20401	Proxy		RAhms	04 22 03.69
DEdms	-09 57 06.5	Vmag	8.21	VarFlag	1	R Vmag	H
RAdeg	65.5154	DEdeg	-9.95181	AstroRef	A	Plx	4.51
CCDM	04221-0957	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	351	Rho	18.299	HD	27708	BD	BD-10 902
CD		CP		Dm number	-10 902	VIred	1.33
SpType	K5	R SpType		Coord arcsec 2000	042203.69-095706.5

Hipparcos 2

HIP	20401	Sn	15	So	3	Nc	2
RArad	1.1434588652	DErad	-0.1736918938	Plx	3.07	PmRA	-7.36
PmDE	-38.76	E RArad	1.9	E DErad	2.16	E Plx	3.06
E pmRA	2.58	E pmDE	2.82	Hpmag	8.3507	E Hpmag	0.014
SHp	0.026	VA	0	BV	1.422	E BV	0.023
VI	1.41

CCDM

Ccdm	04221-0957	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.33	DDEs	-5.2
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.2	Sp	K5	PmNote	*
PmRA	-15	PmDE	-14	Dm number	-10 902	Cat1	BD
Name2	149581	Cat2	SAO	HD	27708	M HD
ADS BDS	A 3164	M ADS BDS		N IDS		IDS	04173S1011A
HIC	20401

04221-0957 B

Componente originario normalizzato	AB		Coord arcsec 2000	042203.53-095648.1		Mag	10.79		PmRA	13.00
PmDE	-5.0		Calc delta mag	2.43		Calc coord	yes

CCDM

Ccdm	04221-0957	RComp		Comp	B	Note1
Note2		Discov num	STF 537	DRAs		DDEs
R dRAs		Year	1958	Theta	348	Rho	17.5
Obs	9	Vmag	11.3	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 3164	M ADS BDS		N IDS		IDS	04173S1011B
HIC