12203+2106 UC 2318

12^h 20^m 15.23^s +21° 06' 29.7" P.A. 123.00 sep 26.1 mag 9.70,13.50 Sp K0

Coord 2000	12203+2106	Discov num	UC 2318	Comp		Coord arcsec 2000	12 20 15.23 +21 06 29.7
Date first	1892	Date last	2015	Obs	9
Pa first	123	Pa last	123.4	P.A. Now (θ)	123.4°
Sep first	27.1	Sep last	26.139	Sep. Now (ρ)	26.139"
Mag pri	9.70	Mag sec	13.50	delta mag (ΔM)	3.8	Spectral class	K0 (yellow-orange)
Pri motion ra	-049	Sec motion ra	-058
Pri motion dec	-014	Sec motion dec	-014
Notes	V (Proper motion indicates physical)

rPM=0.151 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Coma Berenices

Tycho2

1447-01245-1

Gaia DR2

3952311437870761856

WDS 12203+2106 UC 2318 : 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
12203+2106	UC 2318		2000	2	123	26.1	9.70	13.50		V	122015.23+210629.7
12203+2106	UC 2318		2001	3	124	26.0	9.70	13.50		V	122015.23+210629.7
12203+2106	UC 2318		2010	4	123	26.1	9.70	13.50	K0	V	122015.23+210629.7
12203+2106	UC 2318		2015	5	123	26.2	9.70	13.50	K0	V	122015.23+210629.7

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

WDS 12203+2106 UC 2318 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12203+2106 UC 2318 : MEASURES

No records found.

WDS 12203+2106 : VIRTUAL EYEPIECE

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

WDS 12203+2106 : ALADIN DSS IMAGE @ 12^h 20^m 15.23^s +21° 06' 29.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12203+2106 UC 2318 : 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		12203+2106	UC 2318		123	26.1
Show		12207+2118	LDS4203		88	227.8	12
Show		12215+2130	KU 103		339	23.5	30
Show		12186+2148	GRV 854		49	72.1	48
Show		12235+2017	LSC 144		238	0.1	67
Show		12197+2001	LDS1292		58	2.2	68
Show		12174+2203	AZC 73		17	16.7	69
Show		12216+1955	LDS1297		203	4.6	75
Show		12239+2219	UC 2329		203	53.7	89
Show		12165+1953	CVR1421		156	3.8	91
Show		12137+2118	HU 570		103	3.0	92
Show		12136+2112	UC 2296		335	8.9	94
Show		12138+2143	HU 569		162	1.2	98
Show		12276+2111	SLW 725		182	10.9	103
Show		12193+1924	HJ 2607		253	16.6	104
Show		12171+2241	COU 179		6	0.6	105
Show		12232+2244	CVR1425		134	3.9	106
Show		12237+2244	SKF1476		166	1.6	109
Show		12130+2146	JNN 277		255	0.6	109
Show		12207+2255	STF1634		148	5.3	109
Show		12149+1947	COU 178		319	1.2	110
Show		12271+2203	SLW 723		57	9.3	111
Show		12282+2117	LDS4212		317	20.2	113
Show		12280+2158	COU 53		216	2.5	120
Show		12119+2024	HJ 2601		67	26.7	126
Show		12204+1857	LDS1293		216	122.8	127
Show		12258+2247	SHN 157		-1	0.3	127
Show		12137+2252	TDS8277		245	0.5	139
Show		12266+2256	POU3125		333	9.5	141
Show		12230+1851	LDS1302		89	22.7	142
Show		12121+2232	SKF2012		192	63.3	143
Show		12231+2324	POU3123		343	17.4	143
Show		12280+2241	POU3127		152	7.4	144
Show		12236+2326	STF1637		143	120.5	147
Show		12303+2157	HJL1069		312	115.4	150
Show		12135+2303	WSP 56		113	3.4	151
Show		12113+2238	BRT2414		24	3.7	155
Show		12301+2223	COU2707		341	14.4	157
Show		12190+1828	COU 182		51	4.2	160
Show		12162+1834	GWP1780	AB	358	32.0	163
Show		12181+1826	COU 181	AB	148	9.4	164
Show		12281+2309	LEP 55		233	54.4	164
Show		12089+2147	HDS1714	Aa,Ab	204	0.1	164
Show		12089+2147	LDS 930	AB	39	15.5	164
Show		12179+2347	AZC 74		48	49.6	164
Show		12244+2343	POU3124		293	14.4	167
Show		12111+2257	COU 94		339	1.3	169
Show		12226+1819	TDS8355		81	0.5	171
Show		12325+2106	STF1652		178	6.1	172
Show		12145+2340	SKF1473		330	84.0	173
Show		12114+2313	SKF 986		258	19.5	177

WDS 12203+2106 : COMPONENTS

	A
B	pa=125.3° sep=24.93"

12203+2106 A

Componente originario normalizzato	AB		Coord arcsec 2000	122015.23+210629.7		Mag	9.7		Spectral class	K0 (yellow-orange)
PmRA	-49.00		PmDE	-14.0		Tycho2	1447-01245-1

Tycho2

Tycho2	1447-01245-1	Pflag		RAmdeg	185.06345035	DEmdeg	21.10826560
PmRA	-51.1	PmDE	-13.7	E RAmdeg	19	E DEmdeg	20
E pmRA	1.1	E pmDE	1.1	EpRAm	1986.21	EpDEm	1984.45
Num	10	Q RAmdeg	1.4	Q DEmdeg	0.9	Q pmRA	1.4
Q pmDE	0.9	BTmag	11.188	E BTmag	0.053	VTmag	9.984
E VTmag	0.029	Prox	999	TYC	T	HIP
CCDM		RAdeg	185.06357556	DEdeg	21.10829833	EpRA 1990	1.67
EpDE 1990	1.59	E RAdeg	20.8	E DEdeg	24.3	Posflg
Corr	0.1

12203+2106 B

Componente originario normalizzato	AB		Coord arcsec 2000	122016.68+210615.3		Mag	13.5		PmRA	-58.00
PmDE	-14.0		Calc delta mag	3.8		Calc coord	yes