04091+2901 KOH 3 (HD 281691)

04^h 09^m 09.74^s +29° 01' 30.2" P.A. 139.00 sep 6.8 mag 8.40,10.30 Sp G8III

Coord 2000	04091+2901	Discov num	KOH 3	Comp		Coord arcsec 2000	04 09 09.74 +29 01 30.2
Date first	1996	Date last	2016	Obs	14
Pa first	139	Pa last	138.9	P.A. Now (θ)	138.9°
Sep first	6.8	Sep last	6.797	Sep. Now (ρ)	6.797"
Mag pri	8.40	Mag sec	10.30	delta mag (ΔM)	1.9	Spectral class	G8III (yellow)
Pri motion ra	+021	Sec motion ra
Pri motion dec	-037	Sec motion dec
Notes	N K (See Notes, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 281691		Constellation	Taurus		Tycho2	1826-00877-1		Gaia DR2	164088748804295168
HD	281691

WDS 04091+2901 KOH 3 (HD 281691) : NOTES

discov_num	notes	refcode
KOH 3	Young member of Taurus-Auriga molecular cloud.	Dae2015

REFERENCES

refcode	metd	author	reference
Dae2015	A j	Daemgen, S., Bonavita, M., Jayawardhana, R., Lafreniere, D., & Janson, M.	2015ApJ...799..155D
Dae2015		ApJ 799, 155, 2015

DISCOVERER

idgroup	discov	author
1	KOH	Koehler, R. & Leinert, Ch.
11	KOH	Koehler, R., Petr-Gotzens, M.G., McCaughrean, M.J., Bouvier, J., Duchene, G.,
11	KOH	Quirrenbach, A., & Zinnecker, H.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
04091+2901	KOH 3		1997	3	140	6.9	10.77	11.40		D	040909.74+290130.2
04091+2901	KOH 3		2002	4	139	6.8	10.77	11.40		D	040909.74+290130.2
04091+2901	KOH 3		2012	7	140	6.8	8.40	10.30		K	040909.74+290130.2
04091+2901	KOH 3		2015	9	139	6.8	8.40	10.30	G8III	N K	040909.74+290130.2
04091+2901	KOH 3		2016	14	139	6.8	8.40	10.30	G8III	N K	040909.74+290130.2

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WDS 04091+2901 KOH 3 (HD 281691) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04091+2901 KOH 3 (HD 281691) : MEASURES

No records found.

WDS 04091+2901 (HD 281691) : VIRTUAL EYEPIECE

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WDS 04091+2901 (HD 281691) : ALADIN DSS IMAGE @ 04^h 09^m 09.74^s +29° 01' 30.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04091+2901 KOH 3 (HD 281691) : 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		04091+2901	KOH 3		139	6.8
Show		04089+2911	BU 1232		350	0.3	11
Show		04091+2839	HO 326		295	0.4	23
Show		04068+2856	BU 1005		63	2.7	33
Show		04081+2807	KSA 2	AB	351	9.6	56
Show		04081+2807	KSA 2	Aa,Ab	133	0.0	56
Show		04134+2907	HDS 537		350	0.1	56
Show		04116+2950	YR 11		85	0.5	59
Show		04057+2824	BU 1277	AB	254	1.6	60
Show		04057+2824	BU 1277	AC	70	54.6	60
Show		04078+3008	UC 1121		184	54.2	69
Show		04122+2805	MLB 558		357	8.8	70
Show		04145+2851	GRV 208		196	22.8	71
Show		04135+2816	KSA 102		144	0.0	73
Show		04038+2824	COU 701		209	1.6	80
Show		04139+2812	DCH 47	AB	246	21.0	81
Show		04139+2812	DCH 47	AC	274	15.2	81
Show		04142+2813	KSA 3	BC	92	26.2	83
Show		04142+2813	GHE 1	Aa,Ab	186	0.0	83
Show		04142+2813	DCH 101	Aa,Ac	159	0.2	83
Show		04142+2813	HAT 3	AB	15	38.3	83
Show		04142+2813	SKF1027	AD	216	23.4	83
Show		04142+2813	BOD 2	Aa1,2	229	0.0	83
Show		04039+2808	VBS 9		165	1.9	88
Show		04144+2806	BRC 2	AB	154	4.0	89
Show		04144+2806	KSA 4	BC	280	24.8	89
Show		04148+2813	GHE 2	Aa,Ab	253	0.1	90
Show		04148+2813	KSA 5	AB	251	26.1	90
Show		04072+2731	TOK 241		181	35.4	95
Show		04157+2819	KSA 130		89	2.6	96
Show		04084+2725	LDS5506		173	13.1	97
Show		04025+2949	TVB 63		101	7.0	99
Show		04148+2753	GHE 3		69	0.5	102
Show		04022+2808	STF 481	AB	106	2.7	106
Show		04022+2808	STF 481	AC	321	13.8	106
Show		04022+2808	STF 481	AD	90	999.9	106
Show		04172+2913	CVR 48		70	11.5	107
Show		04160+3002	STT 78		248	2.1	109
Show		04131+2726	MLB 685		211	2.1	110
Show		04165+2808	KSA 7	AB	155	8.5	111
Show		04165+2808	ITO 18	AC	111	8.8	111
Show		04176+2833	SAR 2	AB	290	18.2	116
Show		04176+2833	SAR 2	A,Ca	121	14.6	116
Show		04176+2833	SAR 2	A,Cb	118	14.3	116
Show		04176+2833	KSA 103	Aa,Ab	61	0.0	116
Show		04163+2752	KSA 6	AC	219	27.9	118
Show		04178+2830	KSA 8		137	27.7	119
Show		04039+2725	LDS5484		78	6.0	119
Show		04121+2710	BRT 134		339	3.5	120
Show		04056+2709	LDS5493		80	142.1	122
Show		04029+3034	TDS2727		109	0.5	124

WDS 04091+2901 : COMPONENTS

	A
B	pa=142.7° sep=6.44"

04091+2901 A

Componente originario normalizzato	AB		Name	HD 281691		Coord arcsec 2000	040909.74+290130.2		Mag	8.4
Spectral class	G8III (yellow)		PmRA	21.00		PmDE	-37.0

04091+2901 B

Componente originario normalizzato	AB		Coord arcsec 2000	040910.04+290125.1		Mag	10.3		Tycho2	1826-00877-1
HD	281691		Calc delta mag	1.9		Calc coord	yes

Tycho2

Tycho2	1826-00877-1	Pflag		RAmdeg	62.29060971	DEmdeg	29.02506980
PmRA	21.2	PmDE	-32.3	E RAmdeg	46	E DEmdeg	54
E pmRA	1.9	E pmDE	1.9	EpRAm	1984.73	EpDEm	1981.80
Num	4	Q RAmdeg	1.1	Q DEmdeg	1.6	Q pmRA	1.1
Q pmDE	1.6	BTmag	11.677	E BTmag	0.093	VTmag	10.772
E VTmag	0.074	Prox	999	TYC	T	HIP
CCDM		RAdeg	62.29055278	DEdeg	29.02514694	EpRA 1990	1.62
EpDE 1990	1.37	E RAdeg	47.8	E DEdeg	56.9	Posflg
Corr	-0.4