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Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

04417+2302 KSA 29 AB

04^h 41^m 44.89^s +23° 01' 51.3" P.A. 58.00 sep 12.3 mag 14.42,10.73 Sp M8.25

Coord 2000	04417+2302	Discov num	KSA 29	Comp	AB	Coord arcsec 2000	04 41 44.89 +23 01 51.3
Date first	1998	Date last	2015	Obs	3
Pa first	57	Pa last	57.6	P.A. Now (θ)	57.6°
Sep first	12.4	Sep last	12.31	Sep. Now (ρ)	12.31"
Mag pri	14.42	Mag sec	10.73	delta mag (ΔM)	3.69	Spectral class	M8.25 (red)
Pri motion ra		Sec motion ra	-002
Pri motion dec		Sec motion dec	-018
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.

04417+2302 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			04 41 45 +23 01 51	TOD 1 Aa,Ab	2009	2	121	0.1	18.90	21.20	2.30
Show			04 41 45 +23 01 51	KSA 29 AB	2015	3	58	12.3	14.42	10.73	3.69		<===
Show			04 41 46 +23 01 58	TOD 1 Ba,Bb	2008	1	87	0.2	10.20	13.00	2.80

Quadruple system
2 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Taurus

Gaia DR2

146487556211644544

WDS 04417+2302 KSA 29 AB : NOTES

discov_num	notes	refcode
KSA 29	Primary is of spectral type M8.5 and shows evidence of a circumstellar
	disk and active accretion. The Ab companion is estimated as type
	M9.5-L0, mass 5-10 Mjup. Todorov et al. (2010) also resolved the B
	component into a 0.23" pair.	Tod2010

REFERENCES

refcode	metd	author	reference
Tod2010	Hp j	Todorov, K., Luhman, K.L., & McLeod, K.K.	2010ApJ...714L..84T
Tod2010		ApJ 714, L84, 2010
Tod2010		TOI Numbers from Stassun et al. (2019AJ....158..138S). Double star results in Tok202	0b.
Tod2010		Those without TOI numbers in Table 6 are assigned as TOI9001-TOI9003.

DISCOVERER

idgroup	discov	author
1	KSA	Kraus, A.L. & Hillenbrand, L.A.
13	KSA	Kraus, A.L., Ireland, M.J., Cieza, L.A., Hinkley, S., Dupuy, T.J.,
13	KSA	Bowler, B.P., & Liu, M.C.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
04417+2302	KSA 29	AB	1998	2	57	12.4	14.42	10.73	M8.25	N DK	044144.89+230151.3
04417+2302	KSA 29	AB	2015	2	58	12.3	14.42	10.73	M8.25	N K	044144.89+230151.3

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

WDS 04417+2302 KSA 29 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04417+2302 KSA 29 AB : MEASURES

No records found.

WDS 04417+2302 : VIRTUAL EYEPIECE

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

WDS 04417+2302 : ALADIN DSS IMAGE @ 04^h 41^m 44.89^s +23° 01' 51.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04417+2302 KSA 29 AB : 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		04417+2302	KSA 29	AB	58	12.3
Show		04417+2302	TOD 1	Aa,Ab	121	0.1
Show		04417+2302	TOD 1	Ba,Bb	87	0.2	1
Show		04419+2308	POU 473		278	18.8	6
Show		04422+2257	MCA 16	Aa,Ab	36	0.3	9
Show		04422+2257	S 455	AB	214	62.5	9
Show		04427+2314	OCC 319		-1	0.1	18
Show		04417+2244	STF 579		40	16.4	18
Show		04427+2317	POU 475		332	16.3	21
Show		04426+2241	CVR 453		307	10.6	25
Show		04400+2301	HU 442		110	0.2	25
Show		04439+2257	OCC 313	Ca,Cb	-1	0.1	31
Show		04395+2316	POU 471		228	3.1	34
Show		04393+2248	LEI 22		324	0.7	37
Show		04416+2341	LDS6139		6	191.0	40
Show		04431+2227	KPP 23		28	16.1	41
Show		04401+2339	POU 472		309	13.2	44
Show		04423+2345	POU 474		195	11.8	44
Show		04450+2311	POU 476		130	7.4	46
Show		04382+2302	KOH 17		92	9.3	49
Show		04451+2249	LDS5592		151	96.4	49
Show		04387+2327	POU 469		281	16.0	49
Show		04384+2241	LDS6137		305	85.0	52
Show		04393+2221	KSA 25	AB	184	28.1	54
Show		04393+2221	LKCA 15	Aa,Ab	274	0.1	54
Show		04393+2221	LKCA 15	Aa,Ac	312	0.1	54
Show		04393+2221	LKCA 15	Aa,Ad	14	0.1	54
Show		04456+2308	POU 480		112	17.7	54
Show		04458+2255	COU 368		93	4.9	57
Show		04394+2349	POU 470		310	14.6	58
Show		04381+2334	POU 468		140	16.1	61
Show		04462+2319	POU 483		115	19.8	65
Show		04368+2246	LDS6136		102	249.1	70
Show		04400+2155	J 2727		257	5.2	71
Show		04439+2407	LDS6140		189	60.0	72
Show		04368+2237	LDS6135		56	3.2	74
Show		04456+2354	POU 479		215	16.0	74
Show		04470+2327	POU 486		25	16.5	78
Show		04469+2226	OCC1055		-1	0.1	80
Show		04359+2255	LEI 20		246	0.7	81
Show		04468+2221	SCA 31		282	46.7	81
Show		04359+2254	LEI 21	AB	243	10.1	82
Show		04359+2254	HAT 12	AC	297	21.4	82
Show		04359+2254	ITO 33	AD	174	8.3	82
Show		04359+2254	KSA 109	Ba,Bb	294	0.1	82
Show		04359+2254	HAT 12	BC	325	17.4	82
Show		04359+2254	OCC9096	Ca,Cb	-1	0.0	82
Show		04474+2324	POU 488		106	4.7	82
Show		04468+2345	POU 485		77	8.7	82
Show		04363+2337	LDS5577		315	75.2	83
Show		04358+2250	OCC9095	Aa,Ab	-1	0.0	84

WDS 04417+2302 : COMPONENTS

	A	Ab	B
Ab	pa=123.1° sep=0.10"
B	pa=57.4° sep=12.45"	pa=57.0° sep=12.41"
Bb	pa=57.9° sep=12.63"	pa=57.5° sep=12.59"	pa=86.8° sep=0.21"

04417+2302 A

Coord arcsec 2000

044144.89+230151.3

Mag

14.42

Spectral class

M8.25 (red)

04417+2302 Ab

Coord arcsec 2000	044144.90+230151.2		Mag	21.2		Spectral class	L0 (very deep red)		Calc delta mag	2.3
Calc coord	yes

04417+2302 B

Coord arcsec 2000	044145.65+230158.0		Coord calc	044145.58+230157.9		Mag	10.2		Mag composta	10.73
PmRA	-2.00		PmDE	-18.0		Calc delta mag	8.7

04417+2302 Bb

Coord arcsec 2000

044145.66+230158.0

Mag

Calc delta mag

5.9

Calc coord

yes