02021+3031 UC 21

02^h 02^m 06.27^s +30° 31' 17.1" P.A. 215.00 sep 53.0 mag 12.28,12.34

Coord 2000	02021+3031	Discov num	UC 21	Comp		Coord arcsec 2000	02 02 06.27 +30 31 17.1
Date first	1997	Date last	2015	Obs	7
Pa first	215	Pa last	215.3	P.A. Now (θ)	215.3°
Sep first	53.1	Sep last	53.028	Sep. Now (ρ)	53.028"
Mag pri	12.28	Mag sec	12.34	delta mag (ΔM)	0.06	Spectral class
Pri motion ra	+055	Sec motion ra	+062
Pri motion dec	-023	Sec motion dec	-030
Notes	V (Proper motion indicates physical)

rPM=0.144 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Triangulum

Tycho2

2308-02086-1

Gaia DR2

301253850864566656

WDS 02021+3031 UC 21 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
UC		USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4)	...................
UC_2013a	Eu j	Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G.,	2013AJ....145...44Z
UC_2013a		& Zacharias, M.I. (UCAC4 Catalog)
UC_2013a		AJ 145, 44, 2013
UC_2013b	Eu j	Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D.	2013AJ....146...76H
UC_2013b		AJ 146, 76, 2013 (UC 301 - 5058)
UC_2013b		(Relative astrometry is derived from individual measurements, not precessed means.
UC_2013b		UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended
UC_2013b		image (a flag value of 30 or higher). Model fit magnitudes are given for both
UC_2013b		components if either has such a flag. Model fit magnitudes are indicated by the
UC_2013b		letter "f" following the filter information.
UC_2013b		APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012.
UC_2013b		Due to aperture method used, APASS photometry is only included for pairs wider
UC_2013b		than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed
UC_2013b		identical values for both components in all filters were removed, as well.
UC_2015	Eu -	Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C.,	2015AJ....150..101Z
UC_2015		DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
UC_2015		Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
UC_2015		AJ 150, 101, 2015
UC_9999	Eu -	temporary UCAC files	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02021+3031	UC 21		1997	1	215	53.1	12.30	12.30		V	020206.27+303117.1
02021+3031	UC 21		2001	2	216	53.0	12.30	12.30		VD	020206.27+303117.1
02021+3031	UC 21		2010	3	215	53.0	12.28	12.34		V	020206.27+303117.1
02021+3031	UC 21		2015	4	215	53.0	12.28	12.34		V	020206.27+303117.1

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

WDS 02021+3031 UC 21 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 02021+3031 UC 21 : MEASURES

No records found.

WDS 02021+3031 : VIRTUAL EYEPIECE

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

WDS 02021+3031 : ALADIN DSS IMAGE @ 02^h 02^m 06.27^s +30° 31' 17.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02021+3031 UC 21 : 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		02021+3031	UC 21		215	53.0
Show		02011+3051	LDS3335		237	113.0	24
Show		01596+3044	COU 669		289	1.0	35
Show		01597+3003	UC 655		265	65.9	42
Show		02055+3018	COU 455		112	0.3	46
Show		02048+3110	COU 454		258	1.0	52
Show		02061+3027	LDS3342		284	36.0	53
Show		01580+3033	KPP 759		302	6.6	53
Show		01581+3041	TDS2070		244	0.7	53
Show		01572+3027	J 2720		318	7.9	63
Show		01571+3034	ES 321		186	3.4	64
Show		01590+2941	AZC 19		131	9.8	65
Show		01568+3033	KO 4		191	299.1	70
Show		02009+3141	ES 2404		338	10.4	71
Show		01570+3101	A 819	AB	1	0.1	73
Show		01570+3101	A 819	AB,C	271	66.4	73
Show		02045+3137	SEI 23		72	10.2	73
Show		01564+3026	FRK 2		307	53.4	74
Show		02021+3146	CVR 410		21	10.5	75
Show		02047+3138	TOB 51		255	28.1	75
Show		01563+3032	GRV 105		280	23.0	75
Show		02012+3147	ES 2405		270	8.6	77
Show		01576+3134	BAR 21	BC	253	2.3	86
Show		01576+3134	STF 187	AB	189	10.9	86
Show		01576+3134	BAR 21	AD	244	19.8	86
Show		02043+2911	CHE 34	AB	74	13.2	86
Show		02043+2911	BKO 635	AC	325	5.6	86
Show		02035+3156	SEI 22		105	25.2	87
Show		02070+2923	CHE 49		110	32.0	94
Show		02053+2906	CHE 39	AB	40	18.8	95
Show		02053+2906	CTT 12	AC	74	65.1	95
Show		02053+2906	CHE 38	CD	172	2.5	95
Show		02053+2906	WAK 14	CE	50	10.1	95
Show		01585+3155	AG 28		175	3.2	97
Show		02086+3123	WIS 54		79	503.6	99
Show		02083+2933	CHE 56		55	28.3	99
Show		02099+3025	MLB 681		85	6.4	101
Show		01586+2855	GRV 107		261	43.9	106
Show		02080+2917	BKO 636		333	6.3	107
Show		01576+3202	UC 20		316	19.2	108
Show		02087+2921	CHE 60		275	29.3	111
Show		01535+3030	MLB 737		135	3.2	111
Show		02086+2918	CHE 59	AB	216	27.5	112
Show		02086+2918	BTG 7	AD	297	28.5	112
Show		02086+2918	BTG 7	AC	209	39.9	112
Show		02086+2918	BTG 7	BC	196	12.6	112
Show		02108+3005	COU 456		71	0.5	116
Show		02104+2948	BUP 29	AB	190	77.5	116
Show		02104+2948	BUP 29	AC	353	187.3	116
Show		02104+2948	BUP 29	AD	250	228.4	116
Show		02060+2844	CHE 44		81	9.9	119

WDS 02021+3031 : COMPONENTS

	A
B	pa=211.4° sep=50.69"

02021+3031 A

Componente originario normalizzato	AB		Coord arcsec 2000	020206.27+303117.1		Mag	12.28		PmRA	55.00
PmDE	-23.0		Tycho2	2308-02086-1

Tycho2

Tycho2	2308-02086-1	Pflag		RAmdeg	30.52577844	DEmdeg	30.52105864
PmRA	47.3	PmDE	-29.1	E RAmdeg	118	E DEmdeg	122
E pmRA	4.1	E pmDE	4.0	EpRAm	1981.09	EpDEm	1979.84
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	13.409	E BTmag	0.397	VTmag	12.299
E VTmag	0.227	Prox	999	TYC		HIP
CCDM		RAdeg	30.52565222	DEdeg	30.52112444	EpRA 1990	1.72
EpDE 1990	1.84	E RAdeg	126.4	E DEdeg	130.5	Posflg
Corr	-0.2

02021+3031 B

Componente originario normalizzato	AB		Coord arcsec 2000	020204.23+303033.8		Mag	12.34		PmRA	62.00
PmDE	-30.0		Calc delta mag	0.06		Calc coord	yes