10181+2731 STF 1421 (HD 89223)

10^h 18^m 05.54^s +27° 31' 27.9" P.A. 331.00 sep 4.5 mag 8.19,9.12 Sp F2 dist. 429.18 pc (1399.99 l.y.)

Coord 2000	10181+2731	Discov num	STF1421	Comp		Coord arcsec 2000	10 18 05.54 +27 31 27.9
Date first	1827	Date last	2020	Obs	63
Pa first	315	Pa last	331.1	P.A. Now (θ)	331.1°
Sep first	2.0	Sep last	4.5	Sep. Now (ρ)	4.5"
Mag pri	8.19	Mag sec	9.12	delta mag (ΔM)	0.93	Spectral class	F2 (yellow-white)
Pri motion ra	+010	Sec motion ra	+001
Pri motion dec	-040	Sec motion dec	-020
Notes

rPM=0.532

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 89223	Constellation	Leo	SAO	81277	HIP	50451
Tycho2	1975-00452-1	Gaia DR2	740860624241692416	HD	89223	GC	14130
BD	BD+28 1866	Distance	429.18	Distance ly	1399.99

WDS 10181+2731 STF 1421 (HD 89223) : 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
10181+2731	STF1421		2008	49	332	4.4	8.19	9.12	F2	D	101805.54+273127.9
10181+2731	STF1421		2012	53	331	4.5	8.19	9.12	F2	D	101805.54+273127.9
10181+2731	STF1421		2017	55	330	4.6	8.19	9.12	F2		101805.54+273127.9
10181+2731	STF1421		2019	61	330	4.5	8.19	9.12	F2		101805.54+273127.9
10181+2731	STF1421		2020	62	331	4.5	8.19	9.12	F2		101805.54+273127.9

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

WDS 10181+2731 STF 1421 (HD 89223) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 10181+2731 STF 1421 (HD 89223) : MEASURES

No records found.

WDS 10181+2731 (HD 89223) : 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 10181+2731 (HD 89223) : ALADIN DSS IMAGE @ 10^h 18^m 05.54^s +27° 31' 27.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 10181+2731 STF 1421 (HD 89223) : 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		10181+2731	STF1421		331	4.5
Show		10159+2746	COU 958		81	2.3	33
Show		10202+2806	HJ 479		201	32.6	42
Show		10147+2724	SKF2378		313	1.4	46
Show		10218+2715	COU 959		336	1.7	52
Show		10196+2831	DAM2315		334	1.7	63
Show		10212+2642	HDS1488		222	0.1	65
Show		10131+2725	STT 213	AB	125	1.1	67
Show		10131+2725	SKF2825	AB,C	238	20.8	67
Show		10200+2834	SLW 463		238	24.4	68
Show		10199+2834	TDS 578		23	1.2	68
Show		10134+2800	TDS7118		130	0.6	68
Show		10133+2757	DAM2147		23	1.8	69
Show		10177+2621	CVR 556		52	7.5	71
Show		10171+2622	CVR1277		275	4.0	71
Show		10144+2638	TDS7134		262	0.8	74
Show		10166+2620	LDS3972		267	8.5	75
Show		10176+2611	FMR 90		90	167.7	82
Show		10120+2740	TDS7099		203	0.5	83
Show		10236+2651	UC 1921		175	19.5	84
Show		10114+2722	LDS3961		70	13.8	91
Show		10135+2839	FMR 213		45	3.4	92
Show		10234+2630	A 1990		290	1.5	95
Show		10169+2552	BUP 131	AB	264	869.0	102
Show		10169+2552	SKF1468	AC	191	9.0	102
Show		10236+2617	A 1991		191	1.5	105
Show		10144+2557	TDS7135		92	0.5	108
Show		10122+2854	TDS7103		132	0.5	114
Show		10110+2835	BRT 23		190	4.2	114
Show		10120+2603	CVR1273		137	4.4	121
Show		10214+2539	CVR 103		317	71.8	122
Show		10225+2538	UC 1920		295	45.9	129
Show		10264+2628	CVR1290		264	4.1	129
Show		10274+2806	TDS7284		263	0.6	129
Show		10167+2522	BVD 81		28	79.6	131
Show		10280+2741	KPP3816	AB	334	11.7	132
Show		10118+2920	NSN 600		16	2.0	137
Show		10082+2648	ES 431	BC	15	5.7	140
Show		10082+2648	ES 431	AB	352	35.7	140
Show		10082+2648	ES 431	AC	355	40.9	140
Show		10143+2944	LDS3968		150	15.1	142
Show		10131+2521	KPP3809		275	1.8	147
Show		10291+2746	SLW 479		14	16.5	148
Show		10268+2904	KU 99		318	22.0	148
Show		10157+2506	KPP3812		185	2.9	150
Show		10156+2504	FOX 14		185	2.9	150
Show		10217+2955	LDS1238		15	6.9	152
Show		10149+2505	DAM2178		3	3.9	153
Show		10264+2545	HDS1500		305	0.2	154
Show		10064+2702	HJ 828		307	12.5	159
Show		10291+2842	CVR1294		348	4.3	163

WDS 10181+2731 : COMPONENTS

	A
B	pa=333.9° sep=4.39"

10181+2731 A

Componente originario normalizzato	AB	Name	HD 89223	Coord arcsec 2000	101805.54+273127.9	Mag	8.19
Spectral class	F2 (yellow-white)	PmRA	10.00	PmDE	-40.0	SAO	81277
HIP	50451	Tycho2	1975-00452-1	HD	89223	GC	14130
BD	BD+28 1866

Tycho2

Tycho2	1975-00452-1	Pflag		RAmdeg	154.52307300	DEmdeg	27.52441374
PmRA	-3.9	PmDE	-23.7	E RAmdeg	5	E DEmdeg	8
E pmRA	2.3	E pmDE	2.1	EpRAm	1991.79	EpDEm	1991.64
Num	4	Q RAmdeg	1.6	Q DEmdeg	1.9	Q pmRA	1.6
Q pmDE	1.8	BTmag	8.647	E BTmag	0.017	VTmag	8.190
E VTmag	0.013	Prox	46	TYC	T	HIP	50451
CCDM	A	RAdeg	154.52308278	DEdeg	27.52446778	EpRA 1990	1.85
EpDE 1990	1.82	E RAdeg	5.2	E DEdeg	7.9	Posflg
Corr	0.1

SAO

SAO	81277	DelFlag		RA1950		PmRA1950	0.0013
DE1950		PmDE1950	-0.017	Vmag	7.9	SpType	F2
Double code		Source	70	CatNum	14130	DM	BD+28 1866
DMcomp		BDsup		HD	89223	M HD	0
GC	14130	RA1950rad	2.68464968	DE1950rad	0.48477076	PmRA2000	0.0013
PmDE2000	-0.013

Hipparcos

Catalog	H	HIP	50451	Proxy	H	RAhms	10 18 05.54
DEdms	+27 31 28.1	Vmag	7.77	VarFlag		R Vmag	G
RAdeg	154.523	DEdeg	27.5245	AstroRef	A	Plx	4.1
CCDM	10181+2731	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	331	Rho	4.57	HD	89223	BD	BD+28 1866
CD		CP		Dm number	+28 1866	VIred	0.46
SpType	F2	R SpType		Coord arcsec 2000	101805.54+273128.1

Hipparcos 2

HIP	50451	Sn	15	So	3	Nc	2
RArad	2.6969364545	DErad	0.4803926405	Plx	2.33	PmRA	0.45
PmDE	-19.87	E RArad	0.84	E DErad	0.55	E Plx	1.09
E pmRA	0.89	E pmDE	0.5	Hpmag	7.8591	E Hpmag	0.0009
SHp	0.01	VA	0	BV	0.396	E BV	0.015
VI	0.46

CCDM

Ccdm	10181+2731	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.37	DDEs	28.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.3	Sp	F2	PmNote	*
PmRA	17	PmDE	-16	Dm number	+28 1866	Cat1	BD
Name2	81277	Cat2	SAO	HD	89223	M HD
ADS BDS	A 7715	M ADS BDS		N IDS		IDS	10124N2801A
HIC	50451

10181+2731 B

Componente originario normalizzato	AB		Coord arcsec 2000	101805.40+273131.8		Mag	9.12		PmRA	1.00
PmDE	-20.0		Calc delta mag	0.93		Calc coord	yes

CCDM

Ccdm	10181+2731	RComp		Comp	B	Note1
Note2		Discov num	STF1421	DRAs		DDEs
R dRAs		Year	1830	Theta	330	Rho	4.4
Obs	21	Vmag	9.3	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 7715	M ADS BDS		N IDS		IDS	10124N2801B
HIC	50451