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04254+2218
STF 541 BF

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

04254+2218 STF 541 BF

04^h 25^m 25.01^s +22° 12' 00.0" P.A. 216.00 sep 108.3 mag 5.29,13.70 Sp A7V dist. 45.39 pc (148.06 l.y.)

Coord 2000	04254+2218	Discov num	STF 541	Comp	BF	Coord arcsec 2000	04 25 25.01 +22 12 00.0
Date first	1909	Date last	2014	Obs	5
Pa first	209	Pa last	215.5	P.A. Now (θ)	215.5°
Sep first	106.9	Sep last	108.331	Sep. Now (ρ)	108.331"
Mag pri	5.29	Mag sec	13.70	delta mag (ΔM)	8.41	Spectral class	A7V (white)
Pri motion ra	+114	Sec motion ra	+009
Pri motion dec	-046	Sec motion dec	+001
Notes	N (See Notes)

rPM=0.936

This double is not physical.

04254+2218 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		76601	04 25 22 +22 17 38	OCC 327 Aa,Ab	1993	0	-1	0.0	5.20	5.20	0.00
Show	Kap Tau	76601	04 25 22 +22 17 38	STF 541 AB	2016	34	174	339.4	4.22	5.29	1.07
Show		76601	04 25 22 +22 17 38	STF 541 A,CD	2013	6	176	177.6	4.22	10.59	6.37
Show		76601	04 25 22 +22 17 38	STF 541 AE	2014	5	269	146.5	4.22	13.08	8.86
Show		76602	04 25 25 +22 12 00	STF 541 B,CD	2014	6	350	163.3	5.29	9.50	4.21
Show		76602	04 25 25 +22 12 00	STF 541 BF	2014	5	216	108.3	5.29	13.70	8.41		<===
Show			04 25 23 +22 14 38	STF 541 CD	2020	25	329	5.5	10.60	10.00	0.60

Septuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	NSV1594 Tau	Constellation	Taurus	SAO	76602	HIP	20641
Tycho2	1277-01627-1	Gaia DR2	145484629809228544	HD	27946	HR	1388
GC	5351	ADS	3201	BD	BD+21 643	Flamsteed	67 Tauri
Flamsteed name	67 Tau	Distance	45.39	Distance ly	148.06

WDS 04254+2218 STF 541 BF : NOTES

discov_num	notes	refcode
STF 541	A: kap 1 Tau = 65 Tau = K Tau
	A,CD: H 6 8.	MEv2010
	AB: HJL1034.	HJL1986
STF 541	04253+2215STF 541CD and 04254+2218STFA 9AB were found to
STFA 9	be the same wide pair, so designations for these two
	multiple systems were combined, as follows:
	04253+2215STF 541AB --> 04254+2218STF 541CD
	04253+2215STF 541AB,C --> 04254+2218STF 541A,CD
	04253+2215STF 541AB,D --> 04254+2218STF 541B,CD
	04254+2218STFA 9AB --> 04254+2218STF 541AB
	04254+2218STFA 9Aa --> 04254+2218STF 541AE
	04254+2218STFA 9Bb --> 04254+2218STF 541BF
	A : kap 1 Tau = 65 Tau = K Tau. Occult. binary, Hyades member (vB 54)
	B : kap 2 Tau = 67 Tau. Delta Scuti variable, Hyades cluster member.
	CD : J 2722. This faint pair is between kap 1 and kap 2 Tau.
	Pairs STFA 9AB (rho = 339"), STFA 9Aa (rho = 141") and STFA 9Bb
	(rho = 107") are all far outside our detection window.	Msn1993a

REFERENCES

refcode	metd	author	reference
HJL1986	Pa -	Halbwachs, J.L.	1986A&AS...66..131H
HJL1986		A&AS 66, 131, 1986
HJL1986		(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986		only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Msn1993a	Sc j	Mason, B.D., McAlister, H.A., Hartkopf, W.I., & Bagnuolo, W.G.	1993AJ....105..220M
Msn1993a		AJ 105, 220, 1993

DISCOVERER

discov	author
HJL	Halbwachs, J.L.
HJL	Halbwachs, J.L., Boffin, H.M.J., Le Bouquin, J.-B., Kiefer, F., Famaey, B.,
HJL	Salomon, J.-B., Arenou, F., Pourbaix, D., Anthonioz, F., Grellmann, R., Guieu, S.,
HJL	Sana, H., et al.
HJL	Halbwachs, J.-L., Kiefer, F., Lebreton, Y., Boffin, H.M.J., Arenou, F., LeBouquin,
MEV	MacEvoy, B.
MSN	Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G.,
MSN	ten Brummelaar, T.A., & McAlister, H.A.
MSN	Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,
MSN	Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
MSN	Mason, B.D., Hartkopf, W.I., Raghavan, D., Subasavage, J.P., Roberts, L.C., Jr.,
MSN	Turner, N.H., & ten Brummelaar, T.A.
OCC	Taylor, G.E., O'Leary, B., van Fladern, T.C. Bartholdi, P., Owen, F.,
OCC	Hubbard, W.B., Smith, B.A., Smith, S.A., Fallon, F.W. Devinney, E.J. & Oliver, J.
OCC	Dunham, D.W., Dunham, J.B., Binzel, R.P., Evans, D.S., Freuh, M., Henry, G.W.,
OCC	A'Hearn, M.A., Schnurr, R., Betts, R., Haynes, H., Orcutt, R., Bowell, E., et al.
OCC	Vasundhara, R., Jayakumar, K., Velu, C., Appakutty, M., Paranjpye, A.,
OCC	Kulkarni, H., Nitsure, P., Prabhunne, M. & Shah, K.
OCC	Lin, C.-L., Zhang, Z.-W., Chen, W.P., King, S.-K., Lin, H.-C., Bianco, F.B.,
OCC	Lehner, M.J., Coehlo, N., Wang, J.-H., Mondal, S., Alcock, C., Axelrod, T., et al.
OCC	Herald, D., Boyle, R., Dunham, D., Hirose, T., Maley, P., Timerson, B., Farris,
OCC	T., Frappa, E., Lecacheux, J., Hayamizu, T., Kozubal, M., Nolthenius, R., et al.
OCC	Loader, B., Asada, Y., Breit, D., Bradshaw, J., Gault, D., Herald, D., Iverson,
OCC	E., Ishida, M., Karasaki, H., Kashiwagura, M., Miyashita, K., Messner, S., et al.
OCC	Loader, B. Bradshaw, J., Breit, D., Gault, D., George, T., Herald, D., Iverson,
OCC	E., Ishida, M., Karasaki, H., Kashiwagura, M., Kenmotsu, K., Lowe, D., et al.
OCC	George, T., Timerson, B., Cooke, B., Degenhardt, S., Dunham, D.W., Messner, S.,
OCC	Suggs, R., Venable, R. & Warren, W.H.
OCC	George, T., Timerson, B., Beard, T., Blank, T., Dantowitz, R., Davis, J.,
OCC	di Cicco, D., Dunham, D.W., Hill, M., Sliski, A. & Sumner, R.
OCC	Bulder, H., Loader, B., Herald, D., Messner, S., Ling, A., Raab, H.,
OCC	Culbertson, B., Black, S., Ishida, M., Ohno, T., & Miyashita, K.
OCC	George, T., Timerson, B., Degenhardt, S., Bracken, C., Cadmus, R., Carcich, A.,
OCC	Centala, J., Modic, R., & Slauson, D.
OCC	Loader, B., Asada, Y., Bradshaw, J., Breit, D., Fuertes, J., Gault, D., George,T.,
OCC	Graham, P., Herald, D., Holenstein, B., Iverson, E., Ishida, M., et al.
OCC	George, T., Timerson, B., Brooks, J., Conrad, S., Dunham, J.B., Dunham, D.W.,
OCC	Jones,R., Lipka, T.R., Thomas, W., Warren, W.J., Jr., Wasson, R. & Wisniewski, J.
OCC	Loader, B., Bradshaw, J., Breit, D., Edens, E., Forbes, M., Gault, D., George, T.,
OCC	Haymes, T., Herald, D., Holenstein, B., Ito, T., Iverson, E., et al.
OCC	Soma, M., Hayamizu, T., Ishida, M., Owada, M., Ida, M., Aikawa, R., Hashimoto, A.,
OCC	Horaguchi, T., Kitazaki, K., Uchiyama, S., Uehara, S., Yaeza, A., et al.
OCC	Loader, B., Asai, A., Bardecker, J., Bradshaw, J., Breit, D., Buettner, D.,
OCC	Chad, C., Denyer, P., Edens, E., Forbes, M., Gault, D., George, T., et al.
OCC	Loader, B., Anderson, P., Asai, A., Bradshaw, J., Breit, D., Forbes, M.,
OCC	Gault, D., George, T., Haymes, T., Herald, D., Ishida, M., Kerr, S., et al.
OCC	Timerson, B., George, T., Bean, J., Blank, T., Bardecker, J., Dunham, D., Dunham,
OCC	JDSO 15, 162, 2019
OCC	Hirose, T., Ida, M., Yamamura, H., Uchiyama, S., Hashimoto, A., Aikawa, R.,
OCC	JDSO 15, 268, 2019
OCC	Loader, B., Asada, Y., Asai, A., Bardecker, J., Bourgeois, J., Bradshaw, J., Chad,
OCC	JDSO 15, 503, 2019
OCC	Gault, D., Barry, T., Nosworthy, P., Hanna, W., Messner, S., Oesper, D., Dunford,
OCC	JDSO 16, 440, 2020
OCC	Frappa, E., Zeleny, P., Baruffetti, P., Bendjeddou, A., Bigi, M., Bouazara, O.,
OCC	JDSO 17, 230, 2021
OCC	Hayamizu, T., Soma, M., Watanabe, Hi., Asai, A., Watanable, Ha., Akira, A.,
OCC	JDSO 18, 61, 2022
OCC	Warner, E., Gault, D., Mousa, M., Oakey, P., Palaoro, A., Smith, R. & Williams,
OCC	JDSO 21, 125, 2025
OCC	Simpson, M., Klaszus, E., Deen, S., Ceravolo, P., Gowe, B., Alves, N., Holloway,
OCC	JDSO 21, 136, 2025
OCC	Weber, C., Conjat, M., Kattentidt, B., Kubanek, J., Kubankova, S., Lavagno, G.,
OCC	JDSO 21, 144, 2025

WDS HISTORIC DATA

coord_2000

discov_num

comp

epoch

obs

pa

sep

mag_pri

mag_sec

spectr

dm_number

notes

coord_arcsec_2000

04254+2218

STF 541

BF

1997

2

215

107.7

5.29

12.20

A7V

N D

042525.01+221200.0

04254+2218

STF 541

BF

2010

3

215

108.5

5.29

13.70

A7V

N D

042525.01+221200.0

04254+2218

STF 541

BF

2014

5

216

108.3

5.29

13.70

A7V

N

042525.01+221200.0

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

WDS 04254+2218 STF 541 BF : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04254+2218 STF 541 BF : MEASURES

No records found.

WDS 04254+2218 : 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 04254+2218 : ALADIN DSS IMAGE @ 04^h 25^m 25.01^s +22° 12' 00.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04254+2218 STF 541 BF : 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		04254+2218	STF 541	B,CD	350	163.3	0
Show		04254+2218	STF 541	BF	216	108.3	0
Show		04254+2218	STF 541	CD	329	5.5	3
Show		04254+2218	STF 541	AB	174	339.4	6
Show		04254+2218	STF 541	AE	269	146.5	6
Show		04254+2218	STF 541	A,CD	176	177.6	6
Show		04254+2218	OCC 327	Aa,Ab	-1	0.0	6
Show		04238+2215	LDS5551		283	67.5	23
Show		04236+2154	LDS1168		276	6.2	32
Show		04245+2244	BU 1235		46	0.1	35
Show		04263+2249	BUP 58	AC	290	116.0	39
Show		04282+2220	HU 439		193	0.4	40
Show		04240+2132	HU 303		204	2.2	45
Show		04263+2128	TOK 16	AB	120	11.1	46
Show		04263+2128	CIA 22	Aa,Ab	-1	-1.0	46
Show		04242+2129	LDS6129		305	5.1	47
Show		04220+2215	OCC 318		-1	0.2	48
Show		04280+2137	BUP 60		237	167.7	51
Show		04252+2121	LDS2232		76	29.0	53
Show		04225+2137	LDS5548		245	84.8	54
Show		04273+2300	OCC 309		-1	0.1	55
Show		04217+2230	LDS5545		103	103.9	55
Show		04238+2120	LDS2230		250	4.8	57
Show		04241+2313	LDS1169		18	7.2	64
Show		04213+2138	AZC 40		211	43.5	67
Show		04246+2319	POU 450		201	11.7	68
Show		04217+2303	LDS5544		96	127.0	73
Show		04271+2059	LDS2239		217	20.8	77
Show		04225+2318	POU 443		268	11.2	78
Show		04235+2059	CHR 16	AB	1	0.2	78
Show		04214+2118	LDS2227		13	65.2	78
Show		04254+2331	LDS5555		90	216.9	79
Show		04313+2150	KOH 13	AB	339	4.9	85
Show		04196+2146	SKF2834	AB	114	14.5	85
Show		04196+2146	SKF2834	AC	338	37.1	85
Show		04315+2230	COU 266		64	2.4	87
Show		04315+2231	COU 265		241	0.6	87
Show		04219+2325	LDS5546		232	91.8	88
Show		04215+2102	OCC 684		-1	0.1	89
Show		04251+2341	POU 451		79	10.7	90
Show		04296+2321	COU 566		155	0.7	90
Show		04197+2300	J 1086		93	5.1	93
Show		04224+2049	BU 87		168	1.9	93
Show		04265+2344	LDS6130		310	114.2	94
Show		04204+2313	POU 441		216	17.2	94
Show		04308+2113	KOH 12		178	0.3	95
Show		04253+2348	HDS 568	DE	3	29.1	96
Show		04319+2138	OCC 889		-1	0.1	97
Show		04252+2349	POU 452		340	6.2	97
Show		04259+2350	POU 454		247	8.3	98
Show		04321+2138	OCC 887		-1	0.1	100

WDS 04254+2218 : COMPONENTS

	A	Ab	B	C	D	E
Ab	pa=0.0° sep=0.00"
B	pa=173.3° sep=340.21"	pa=173.3° sep=340.21"
C	pa=175.1° sep=180.57"	pa=175.1° sep=180.57"	pa=351.4° sep=159.82"
D	pa=175.8° sep=175.65"	pa=175.8° sep=175.65"	pa=350.6° sep=164.91"	pa=329.1° sep=5.49"
E	pa=268.5° sep=146.49"	pa=268.5° sep=146.49"	pa=330.9° sep=382.38"	pa=317.4° sep=239.27"	pa=317.1° sep=233.90"
F	pa=183.1° sep=426.73"	pa=183.1° sep=426.73"	pa=215.5° sep=108.33"	pa=189.0° sep=249.24"	pa=188.2° sep=253.48"	pa=163.7° sep=439.86"

04254+2218 A

Var name	K Tau	Coord arcsec 2000	042522.16+221737.9	Mag	4.22	Spectral class	A7IV/V (white)
PmRA	105.00	PmDE	-45.0	Tycho2	1277-01626-1	Bayer	Kappa 1 Tauri
Bayer name	Kap1 Tau	Flamsteed	65 Tauri	Flamsteed name	65 Tau

Tycho2

Tycho2	1277-01626-1	Pflag		RAmdeg	66.34236228	DEmdeg	22.29387398
PmRA	107.6	PmDE	-44.4	E RAmdeg	3	E DEmdeg	4
E pmRA	0.7	E pmDE	0.7	EpRAm	1991.57	EpDEm	1990.93
Num	24	Q RAmdeg	1.3	Q DEmdeg	0.8	Q pmRA	1.1
Q pmDE	0.7	BTmag	4.380	E BTmag	0.014	VTmag	4.215
E VTmag	0.009	Prox	999	TYC	T	HIP	20635
CCDM		RAdeg	66.34209889	DEdeg	22.29397944	EpRA 1990	1.84
EpDE 1990	1.44	E RAdeg	3.4	E DEdeg	3.8	Posflg
Corr	-0.3

04254+2218 Ab

Coord arcsec 2000

042522.16+221737.9

Mag

5.2

Spectral class

V

Coordinate calculated

yes

04254+2218 B

Coord arcsec 2000	042525.01+221200.0	Coord calc	042525.01+221200.0	Mag	5.29	Spectral class	A7V (white)
PmRA	114.00	PmDE	-46.0	Tycho2	1277-01627-1	Bayer	Kappa 2 Tauri
Bayer name	Kap2 Tau	Flamsteed	67 Tauri	Flamsteed name	67 Tau	Delta magnitude	0.09

Tycho2

Tycho2	1277-01627-1	Pflag		RAmdeg	66.35423433	DEmdeg	22.20000213
PmRA	113.6	PmDE	-45.6	E RAmdeg	4	E DEmdeg	4
E pmRA	0.7	E pmDE	0.7	EpRAm	1991.34	EpDEm	1990.94
Num	23	Q RAmdeg	0.8	Q DEmdeg	0.8	Q pmRA	0.9
Q pmDE	0.7	BTmag	5.560	E BTmag	0.014	VTmag	5.294
E VTmag	0.009	Prox	999	TYC	T	HIP	20641
CCDM		RAdeg	66.35395528	DEdeg	22.20011056	EpRA 1990	1.82
EpDE 1990	1.44	E RAdeg	3.5	E DEdeg	4.0	Posflg
Corr	-0.2

04254+2218 C

Coord arcsec 2000	042523.28+221438.0		Mag	10.6		PmRA	-1.00		PmDE	-18.0
Delta magnitude	5.4

04254+2218 D

Coord arcsec 2000	042523.08+221442.7		Mag	10		PmRA	-4.00		PmDE	-8.0
Delta magnitude	4.8		Coordinate calculated	yes

04254+2218 E

Coord arcsec 2000	042511.61+221734.1		Mag	13.08		PmRA	-5.00		PmDE	10.0
Delta magnitude	7.88		Coordinate calculated	yes

04254+2218 F

Coord arcsec 2000	042520.48+221031.8		Mag	13.7		PmRA	9.00		PmDE	1.0
Delta magnitude	8.5		Coordinate calculated	yes