02573+3156 DCH 116 (21 Per)

02^h 57^m 17.28^s +31° 56' 03.2" P.A. 46.00 sep 1.1 mag 5.20,9.80 Sp A2V dist. 98.04 pc (319.81 l.y.)

Coord 2000	02573+3156	Discov num	DCH 116	Comp		Coord arcsec 2000	02 57 17.28 +31 56 03.2
Date first	2015	Date last	2017	Obs	2
Pa first	46	Pa last	45.6	P.A. Now (θ)	45.6°
Sep first	1.1	Sep last	1.063	Sep. Now (ρ)	1.063"
Mag pri	5.20	Mag sec	9.80	delta mag (ΔM)	4.6	Spectral class	A2V (white)
Pri motion ra	+002	Sec motion ra
Pri motion dec	-030	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	21 Per	Var name	LT Per	Constellation	Perseus	SAO	56031
HIP	13775	Tycho2	2330-02043-1	HD	18296	HR	873
GC	3544	BD	BD+31 509	Flamsteed	21 Persei	Flamsteed name	21 Per
FK5	2205	Distance	98.04	Distance ly	319.81

WDS 02573+3156 DCH 116 (21 Per) : NOTES

discov_num	notes	refcode
DCH 116	21 Per.

REFERENCES

refcode	metd	author	reference
Dch1999a	A -	Duchene, G., Bouvier, J. & Simon, T	1999A&A...343..831D
Dch1999a	+S	A&A 343, 831, 1999
Dch1999b	Xs -	Duchene, G., Monin, J.-L., Bouvier, J., & Menard, F.	1999A&A...351..954D
Dch1999b	+Pa	A&A 351, 954, 1999 (see also A&A 330, 310, 1998)	1998A&A...330..310D
Dch2001	A -	Duchene, G., Simon, T., Eisloffel, J., & Bouvier, J.	2001A&A...379..147D
Dch2001		A&A 379, 147, 2001
Dch2002	A j	Duchene, G. Ghez, A.M. & McCabe, C.	2002ApJ...568..771D
Dch2002	+S	ApJ 568, 771, 2002
Dch2003	S+ j	Duchene, G., Ghez, A.M., McCabe, C., & Weinberger, A.J.	2003ApJ...592..288D
Dch2003	+A	ApJ 592, 288, 2003
Dch2003	+orb
Dch2003b	Kd -	Duchene, G, Menard, F., Stapelfeldt, K., & Duvert, G.	2003A&A...400..559D
Dch2003b		A&A 400, 559, 2003
Dch2004	Ci j	Duchene, G., Bouvier, J., Bontemps, S., Andre, P. & Motte, F.	2004A&A...427..651D
Dch2004		A&A 427, 651, 2004
Dch2004b	A j	Duchene, G., McCabe, C., Ghez, A.M., & Macintosh, B.A.	2004ApJ...606..969D
Dch2004b		ApJ 606, 969, 2004
Dch2005	A j	Duchene, G., Ghez, A.M., McCabe, C., & Ceccarelli, C.	2005ApJ...628..832D
Dch2005		ApJ 628, 832, 2005
Dch2006	orb j	Duchene, G., Beust, H., Adjali, F., Konopacky, Q.M., & Ghez, A.M.	2006A&A...457L...9D
Dch2006	+Si	A&A 457, L9, 2006
Dch2006	+A
Dch2007	A j	Duchene, G., Bontemps, S., Bouvier, J., Andre, P., Djupvik, A.A., & Ghez, A.M.	2007A&A...476..229D
Dch2007		A&A 476, 229, 2007
Dch2010	A -	Duchene, G., McCabe, C., Pinte, C., Stapelfeldt, K.R., Menard, F., Duvert, G.,	2010ApJ...712..112D
Dch2010	+Al	Ghez, A.M., Maness, H.L., Bouy, H., Barrado y Navascues, D., Morales-Calderon, M.,
Dch2010	+K	Wolf, S., et al.
Dch2010	+Kd	ApJ 712, 112, 2010
Dch2018	Am j	Duchene, G., Lacour, S., Moraux, E., Goodwin, S. & Bouvier, J.	2018MNRAS.478.1825D
Dch2018		MNRAS 478, 1825, 2018
Dch2023	A j	Duchene, G., Oon, J.T., De Rosa, R.J., Kantorski, P., Coy, B., Wang, J.J., Thomas,	2023MNRAS.519..778D
Dch2023		S., Patience, J., Pueyo, L., Nielsen, E.L. & Konopacky, Q.
Dch2023		MNRAS 519, 778, 2023

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02573+3156	DCH 116		2017	2	46	1.1	5.20	9.80	A2V	N K	025717.28+315603.2

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WDS 02573+3156 DCH 116 (21 Per) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 02573+3156 DCH 116 (21 Per) : MEASURES

No records found.

WDS 02573+3156 (21 Per) : 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 02573+3156 (21 Per) : ALADIN DSS IMAGE @ 02^h 57^m 17.28^s +31° 56' 03.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02573+3156 DCH 116 (21 Per) : 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		02573+3156	DCH 116		46	1.1
Show		02559+3135	ES 325	AB	2	13.7	28
Show		02559+3135	ES 325	AC	322	1.0	28
Show		02539+3142	HJ 329		108	35.4	45
Show		02550+3232	DAM1007		113	8.8	47
Show		02551+3236	COU 678		141	1.3	49
Show		02535+3134	A 973		263	0.6	54
Show		02547+3238	GRV 151		9	42.5	54
Show		02581+3103	COU 556		318	0.3	55
Show		03015+3225	STF 336		8	8.7	61
Show		02529+3245	SLW 136		283	16.7	74
Show		02572+3319	TOI1636		356	0.2	83
Show		03042+3215	DAM 377		10	5.1	91
Show		02557+3028	GII 2	Ba,Bb	151	0.4	91
Show		02557+3028	COU 555	AB	278	1.8	91
Show		03064+3153	HJ 5456		287	19.7	93
Show		02501+3217	COU 674		273	1.8	95
Show		02503+3230	COU 675		55	0.6	96
Show		02493+3200	COU 552		2	0.2	102
Show		03046+3238	COU 755		86	0.5	103
Show		02566+3339	SLW 138		349	77.2	104
Show		02587+3338	TDS2400		153	0.8	104
Show		03058+3202	HDS 393	Aa,Ab	11	0.6	108
Show		03058+3202	ES 326	AB	35	106.7	108
Show		03000+3340	MLB1035	CD	154	7.2	109
Show		03058+3202	ES 326	BC	34	4.5	110
Show		03000+3340	MLB1035	AB	276	20.0	110
Show		03000+3340	MLB1035	AC	227	39.3	110
Show		03005+3339	KU 11	AB	62	3.0	111
Show		03005+3339	ORL 3	Aa,Ab	1	0.2	111
Show		02496+3101	GRV 148		262	41.9	112
Show		03034+3317	CRB 53		179	7.7	112
Show		02485+3246	CVR 41		272	33.6	122
Show		03030+3019	MLB 742		8	11.3	123
Show		02500+3032	STT 46	AB	75	4.8	126
Show		02500+3032	HJ 656	AC	185	13.8	126
Show		02585+2948	MET 19		221	0.1	130
Show		02473+3122	SLW 131		315	140.9	132
Show		02478+3102	COU 550		346	1.9	133
Show		02478+3103	BU 262		50	1.7	133
Show		02480+3256	LDS3427		50	357.2	134
Show		02500+3340	COU 673		12	0.6	140
Show		02500+3343	SKF1676		38	1.4	142
Show		03013+2941	MLB 456		21	4.7	145
Show		03080+3251	ES 2456		98	2.0	147
Show		02547+3419	GRV1268		348	1.1	147
Show		02504+2958	BVD 27		141	25.0	147
Show		03066+3027	MLB 744		252	8.8	149
Show		02515+3407	FMR 60		48	77.3	150
Show		03083+3250	LDS3456		280	3.5	150
Show		02566+3426	SKF1932		353	3.6	151

WDS 02573+3156 : COMPONENTS

	A
B	pa=40.9° sep=0.98"

02573+3156 A

Componente originario normalizzato	AB	Name	21 Per	Coord arcsec 2000	025717.28+315603.2	Mag	5.2
Spectral class	A2V (white)	PmRA	2.00	PmDE	-30.0	SAO	56031
HIP	13775	Tycho2	2330-02043-1	HD	18296	HR	873
GC	3544	BD	BD+31 509	Flamsteed	21 Persei	Flamsteed name	21 Per
FK5	2205

Tycho2

Tycho2	2330-02043-1	Pflag		RAmdeg	44.32200730	DEmdeg	31.93421934
PmRA	2.3	PmDE	-30.6	E RAmdeg	4	E DEmdeg	4
E pmRA	0.9	E pmDE	1.0	EpRAm	1991.37	EpDEm	1991.26
Num	17	Q RAmdeg	1.2	Q DEmdeg	1.2	Q pmRA	1.3
Q pmDE	1.3	BTmag	5.083	E BTmag	0.014	VTmag	5.091
E VTmag	0.009	Prox	999	TYC	T	HIP	13775
CCDM		RAdeg	44.32200139	DEdeg	31.93429139	EpRA 1990	1.68
EpDE 1990	1.53	E RAdeg	3.6	E DEdeg	3.7	Posflg
Corr	-0.2

SAO

SAO	56031	DelFlag		RA1950		PmRA1950	-0.0001
DE1950		PmDE1950	-0.029	Vmag	5.2	SpType	A0p
Double code		Source	70	CatNum	3544	DM	BD+31 509
DMcomp		BDsup		HD	18296	M HD	0
GC	3544	RA1950rad	0.76028839	DE1950rad	0.55386607	PmRA2000	-0.0001
PmDE2000	-0.032

Hipparcos

Catalog	H	HIP	13775	Proxy		RAhms	02 57 17.28
DEdms	+31 56 03.5	Vmag	5.1	VarFlag	1	R Vmag	H
RAdeg	44.322	DEdeg	31.9343	AstroRef		Plx	8.43
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	18296	BD	BD+31 509
CD		CP		Dm number	+31 509	VIred	0.01
SpType	B9p...	R SpType		Coord arcsec 2000	025717.28+315603.5

Hipparcos 2

HIP	13775	Sn	5	So	0	Nc	1
RArad	0.7735648633	DErad	0.5573585808	Plx	10.2	PmRA	2.55
PmDE	-31.15	E RArad	0.24	E DErad	0.18	E Plx	0.27
E pmRA	0.3	E pmDE	0.23	Hpmag	5.1062	E Hpmag	0.001
SHp	0.007	VA	1	BV	-0.007	E BV	0.005
VI	0.01

02573+3156 B

Componente originario normalizzato	AB		Coord arcsec 2000	025717.33+315603.9		Mag	9.8		Calc delta mag	4.6
Calc coord	yes