12303+2858 LDS 4222

12^h 30^m 19.01^s +28° 57' 43.1" P.A. 222.00 sep 10.8 mag 13.06,18.00 Sp G2V+DA2.2

Coord 2000	12303+2858	Discov num	LDS4222	Comp		Coord arcsec 2000	12 30 19.01 +28 57 43.1
Date first	1960	Date last	2016	Obs	8
Pa first	225	Pa last	221.6	P.A. Now (θ)	221.6°
Sep first	12.0	Sep last	10.76	Sep. Now (ρ)	10.76"
Mag pri	13.06	Mag sec	18.00	delta mag (ΔM)	4.94	Spectral class	G2V+DA2.2 (yellow/white dwarf)
Pri motion ra	-025	Sec motion ra	-036
Pri motion dec	+013	Sec motion dec	+006
Notes	V (Proper motion indicates physical)

rPM=0.357

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Coma Berenices

Gaia DR2

4010863666161192576

WDS 12303+2858 LDS 4222 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
LDS		Luyten p.m. catalog (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12303+2858	LDS4222		1960	1	225	12.0	13.06	18.00			123019.01+285743.1
12303+2858	LDS4222		2009	2	222	10.7	13.06	18.00			123019.01+285743.1
12303+2858	LDS4222		2015	6	222	10.7	13.06	18.00	G2V+DA2.2	V	123019.01+285743.1
12303+2858	LDS4222		2016	8	222	10.8	13.06	18.00	G2V+DA2.2	V	123019.01+285743.1

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

WDS 12303+2858 LDS 4222 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12303+2858 LDS 4222 : MEASURES

No records found.

WDS 12303+2858 : VIRTUAL EYEPIECE

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WDS 12303+2858 : ALADIN DSS IMAGE @ 12^h 30^m 19.01^s +28° 57' 43.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12303+2858 LDS 4222 : 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		12303+2858	LDS4222		222	10.8
Show		12297+2837	HJ 3339		157	19.9	23
Show		12300+2835	LDS4220		229	107.5	24
Show		12321+2847	SLW 733		251	150.3	27
Show		12325+2855	LDS4225		204	16.4	29
Show		12295+2931	BU 1324	BC	180	74.2	35
Show		12295+2931	BU 1324	AB	224	2.4	35
Show		12295+2931	BU 1324	AC	181	75.8	35
Show		12287+2836	LDS1312		297	125.0	36
Show		12327+2922	LDS4226	AB	275	31.8	40
Show		12327+2922	LDS4226	Aa,Ab	243	2.8	40
Show		12283+2828	LDS4213		80	2.0	41
Show		12331+2921	LDS4228		303	3.9	44
Show		12279+2931	SKF 489		48	4.3	46
Show		12298+2812	LDS4218		79	154.3	47
Show		12326+2816	SDK 92	AB	140	11.9	52
Show		12326+2816	SKF1479	BC	266	2.0	52
Show		12285+2953	ES 436		136	2.0	61
Show		12269+2816	SMR 58		207	16.1	61
Show		12258+2836	LEP 132		235	16.0	64
Show		12285+2957	LDS4215		247	101.2	64
Show		12290+3006	CVR1439		131	3.7	71
Show		12356+2917	LDS4231		106	12.8	73
Show		12298+3022	LDS4219		336	82.5	85
Show		12305+2732	COU 594		133	2.8	86
Show		12344+3015	LEP 134		241	5.2	94
Show		12366+3001	BFR 8		89	12.2	104
Show		12219+2909	HJ 518		328	24.8	104
Show		12370+2953	LDS4238		207	32.7	105
Show		12262+2728	LDS1307	AB	232	47.7	107
Show		12262+2728	LDS1307	Aa,Ab	69	2.5	107
Show		12225+2827	SKF1475		294	1.9	108
Show		12375+2953	NSN 52		263	9.5	109
Show		12359+3018	SDK 101		212	3.8	109
Show		12349+2727	YSC 99	AB	277	0.4	109
Show		12349+2727	GII 189	Aa,Ab	130	0.1	109
Show		12282+2712	CVR1437		313	3.4	110
Show		12366+3012	LDS4235		36	21.3	111
Show		12381+2812	TDS8463		129	1.3	113
Show		12219+2833	LDS1300		99	62.1	114
Show		12220+2928	RAO 656		22	0.2	114
Show		12324+3051	LDS3049		120	18.0	117
Show		12317+2701	STF1651		215	7.0	119
Show		12272+2701	STF1643	AB	3	2.8	124
Show		12272+2701	LEP 54	AC	261	221.4	124
Show		12280+3058	LDS3044		10	2.0	124
Show		12208+2906	SKF 494		49	4.8	126
Show		12271+2655	UC 2341		356	30.4	130
Show		12313+3108	LDS3048		1	2.9	130
Show		12207+2939	SDK 54		316	13.6	133
Show		12223+2737	RAO 276		281	2.0	134

WDS 12303+2858 : COMPONENTS

	A
B	pa=217.8° sep=10.19"

12303+2858 A

Componente originario normalizzato	AB		Coord arcsec 2000	123019.01+285743.1		Mag	13.06		Spectral class	G2V (yellow)
PmRA	-25.00		PmDE	13.0

12303+2858 B

Componente originario normalizzato	AB		Coord arcsec 2000	123018.53+285735.1		Mag	18		Spectral class	DA2.2 (white dwarf)
PmRA	-36.00		PmDE	6.0		Calc delta mag	4.94		Calc coord	yes