12158+0902 STF 1620 (HD 106621)

12^h 15^m 48.79^s +09° 02' 05.2" P.A. 82.00 sep 2.3 mag 9.12,10.35 Sp A2 dist. 247.52 pc (807.41 l.y.)

Coord 2000	12158+0902	Discov num	STF1620	Comp		Coord arcsec 2000	12 15 48.79 +09 02 05.2
Date first	1830	Date last	2017	Obs	31
Pa first	80	Pa last	81.5	P.A. Now (θ)	81.5°
Sep first	1.9	Sep last	2.309	Sep. Now (ρ)	2.309"
Mag pri	9.12	Mag sec	10.35	delta mag (ΔM)	1.23	Spectral class	A2 (white)
Pri motion ra	-012	Sec motion ra
Pri motion dec	-008	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 106621	Constellation	Virgo	SAO	119294	HIP	59804
Tycho2	0873-00706-1	Gaia DR2	3905269455646687488	HD	106621	GC	16742
BD	BD+09 2611	Distance	247.52	Distance ly	807.41

WDS 12158+0902 STF 1620 (HD 106621) : 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
12158+0902	STF1620		2000	27	81	2.3	9.12	10.35	A2	D	121548.79+090205.2
12158+0902	STF1620		2017	29	82	2.3	9.12	10.35	A2		121548.79+090205.2

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

WDS 12158+0902 STF 1620 (HD 106621) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12158+0902 STF 1620 (HD 106621) : MEASURES

No records found.

WDS 12158+0902 (HD 106621) : 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 12158+0902 (HD 106621) : ALADIN DSS IMAGE @ 12^h 15^m 48.79^s +09° 02' 05.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12158+0902 STF 1620 (HD 106621) : 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		12158+0902	STF1620		82	2.3
Show		12145+0847	STF1616	AB	295	23.3	26
Show		12145+0847	STF1616	AC	296	168.4	26
Show		12137+0833	GWP1772		68	85.5	43
Show		12156+0950	LDS 934	AB	202	30.0	49
Show		12138+0945	SHN 150		-1	0.3	53
Show		12124+0844	GWP1765		263	24.8	55
Show		12151+0959	STF1618		245	26.0	59
Show		12161+0748	GWP1779		301	33.0	75
Show		12171+0743	FMR 104		276	11.0	82
Show		12139+1023	LDS 933		80	18.1	86
Show		12109+0818	HEI 509		97	1.0	87
Show		12151+0732	STF1617		266	32.6	91
Show		12132+0731	UC 2295		316	19.5	99
Show		12133+1037	GWP1770		258	28.7	103
Show		12187+1035	KPP 881		144	7.4	103
Show		12191+1036	BPM 590		249	97.7	106
Show		12173+0716	GWP1784		38	14.1	109
Show		12200+1032	HJ 847		82	26.1	109
Show		12084+0851	SLW 687		69	100.8	111
Show		12215+0749	YSC 236		87	0.5	112
Show		12122+1041	GWP1764		126	18.9	113
Show		12083+0846	SKF 448	BC	65	2.3	113
Show		12083+0846	SKF 448	AB	128	24.3	114
Show		12126+1046	STF1612		7	5.6	115
Show		12236+0912	LDS1304		32	11.7	116
Show		12104+1026	GWP1757	AB	196	32.3	117
Show		12150+1104	GWP1773		15	7.5	123
Show		12137+1101	KPP1623		142	12.5	124
Show		12086+1009	GWP1755		224	22.5	126
Show		12139+0655	LEP 52		226	34.4	131
Show		12178+0653	KPP3865		21	2.5	132
Show		12136+0654	SLW 696		256	70.5	133
Show		12083+0749	GTZ 2		297	31.2	134
Show		12205+1058	BRT1277		325	3.2	135
Show		12241+1004	CVR 653		124	13.7	138
Show		12134+0642	CVR 645		292	28.4	146
Show		12175+0636	BU 796		97	0.2	149
Show		12180+1127	GWP1786		262	87.0	149
Show		12262+0923	GWP1809		260	48.6	156
Show		12264+0851	CVR1432		140	3.5	158
Show		12238+0717	CVR1428		358	3.4	159
Show		12260+0804	MCT 6		109	2.0	162
Show		12049+0910	STF1597		148	30.8	162
Show		12052+0824	TDS8217		132	0.6	163
Show		12049+0843	GWP1745		80	21.2	163
Show		12124+0627	SLW 695		97	22.6	164
Show		12047+0917	CBL 372		252	81.2	166
Show		12093+1118	STF3078		305	9.7	167
Show		12237+0703	SLW 713		113	9.0	168
Show		12179+1147	HU 1138		1	1.3	168

WDS 12158+0902 : COMPONENTS

	A
B	pa=81.4° sep=2.28"

12158+0902 A

Componente originario normalizzato	AB	Name	HD 106621	Coord arcsec 2000	121548.79+090205.2	Mag	9.12
Spectral class	A2 (white)	PmRA	-12.00	PmDE	-8.0	SAO	119294
HIP	59804	Tycho2	0873-00706-1	HD	106621	GC	16742
BD	BD+09 2611

Tycho2

Tycho2	0873-00706-1	Pflag		RAmdeg	183.95327708	DEmdeg	9.03476493
PmRA	-9.0	PmDE	-8.5	E RAmdeg	9	E DEmdeg	11
E pmRA	3.2	E pmDE	3.1	EpRAm	1991.64	EpDEm	1991.40
Num	3	Q RAmdeg	0.3	Q DEmdeg	0.4	Q pmRA	0.3
Q pmDE	0.3	BTmag	9.395	E BTmag	0.020	VTmag	9.121
E VTmag	0.017	Prox	23	TYC	T	HIP	59804
CCDM	A	RAdeg	183.95329806	DEdeg	9.03478500	EpRA 1990	1.74
EpDE 1990	1.56	E RAdeg	8.5	E DEdeg	10.6	Posflg	D
Corr	0.1

SAO

SAO	119294	DelFlag		RA1950		PmRA1950	0.0002
DE1950		PmDE1950	-0.019	Vmag	8.7	SpType	A2
Double code		Source	70	CatNum	16742	DM	BD+09 2611
DMcomp		BDsup		HD	106621	M HD	0
GC	16742	RA1950rad	3.19946164	DE1950rad	0.1625344	PmRA2000	0.0003
PmDE2000	-0.015

Hipparcos

Catalog	H	HIP	59804	Proxy	H	RAhms	12 15 48.79
DEdms	+09 02 05.2	Vmag	8.85	VarFlag		R Vmag	G
RAdeg	183.953	DEdeg	9.03478	AstroRef	A	Plx	4.86
CCDM	12158+0902	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	81	Rho	2.229	HD	106621	BD	BD+09 2611
CD		CP		Dm number	+09 2611	VIred	0.32
SpType	A2	R SpType		Coord arcsec 2000	121548.79+090205.2

Hipparcos 2

HIP	59804	Sn	15	So	3	Nc	2
RArad	3.2105907708	DErad	0.1576867013	Plx	4.04	PmRA	-1.76
PmDE	-8.74	E RArad	0.94	E DErad	0.78	E Plx	1.12
E pmRA	1.07	E pmDE	0.78	Hpmag	8.9037	E Hpmag	0.0026
SHp	0.018	VA	0	BV	0.28	E BV	0.015
VI	0.32

CCDM

Ccdm	12158+0902	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.81	DDEs	6.0
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.9	Sp	A2	PmNote	*
PmRA	-6	PmDE	7	Dm number	+09 2611	Cat1	BD
Name2	+09 1501	Cat2	AGK2/3	HD	106621	M HD
ADS BDS	A 8483	M ADS BDS		N IDS		IDS	12107N0935A
HIC	59804

12158+0902 B

Componente originario normalizzato	AB		Coord arcsec 2000	121548.94+090205.5		Mag	10.35		Calc delta mag	1.23
Calc coord	yes

CCDM

Ccdm	12158+0902	RComp		Comp	B	Note1
Note2		Discov num	STF1620	DRAs		DDEs
R dRAs		Year	1830	Theta	079	Rho	2.1
Obs	17	Vmag	10.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 8483	M ADS BDS		N IDS		IDS	12107N0935B
HIC	59804