12284+1223 LDS 1311

12^h 28^m 18.30^s +12° 22' 36.4" P.A. 25.00 sep 15.9 mag 12.55,19.09 dist. 900.9 pc (2938.74 l.y.)

Coord 2000	12284+1223	Discov num	LDS1311	Comp		Coord arcsec 2000	12 28 18.30 +12 22 36.4
Date first	1962	Date last	2016	Obs	9
Pa first	25	Pa last	25.2	P.A. Now (θ)	25.2°
Sep first	16.0	Sep last	15.943	Sep. Now (ρ)	15.943"
Mag pri	12.55	Mag sec	19.09	delta mag (ΔM)	6.54	Spectral class
Pri motion ra	-184	Sec motion ra	-184
Pri motion dec	-127	Sec motion dec	-127
Notes	N V (See Notes, Proper motion indicates physical)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Virgo		HIP	60849		Gaia DR2	3907884777197557760		Distance	900.9
Distance ly	2938.74

WDS 12284+1223 LDS 1311 : NOTES

discov_num	notes	refcode
LDS1311	LIT 23. NLTT 30838/30837.	Chm2004

REFERENCES

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)

DISCOVERER

idgroup	discov	author
1	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
12284+1223	LDS1311		2000	3	24	15.7	12.55	19.09		DV	122818.30+122236.4
12284+1223	LDS1311		2013	4	25	16.3	12.55	19.09		NV	122818.30+122236.4
12284+1223	LDS1311		2015	6	25	15.9	12.55	19.09		NV	122818.30+122236.4
12284+1223	LDS1311		2016	9	25	15.9	12.55	19.09		NV	122818.30+122236.4

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

WDS 12284+1223 LDS 1311 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12284+1223 LDS 1311 : MEASURES

No records found.

WDS 12284+1223 : VIRTUAL EYEPIECE

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

WDS 12284+1223 : ALADIN DSS IMAGE @ 12^h 28^m 18.30^s +12° 22' 36.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12284+1223 LDS 1311 : 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		12284+1223	LDS1311		25	15.9
Show		12277+1213	GWP1813	AB	243	225.0	14
Show		12277+1213	TDS 663	BC	285	3.4	17
Show		12299+1157	SKF1348		320	30.1	35
Show		12310+1228	SHN 161		-1	0.3	40
Show		12317+1208	SHY 607	AB	46	999.9	52
Show		12305+1142	BRT1278		26	2.8	53
Show		12250+1248	SHN 23		219	0.3	55
Show		12324+1211	LDS 937		122	42.3	60
Show		12286+1117	UC 2345			22.0	66
Show		12319+1310	UC 2354		38	8.8	72
Show		12278+1335	LDS1309		16	146.6	73
Show		12332+1200	LDS1318		163	7.9	73
Show		12345+1206	BPM 593		132	118.3	93
Show		12214+1223	LDS1295	BC	119	75.0	94
Show		12323+1335	LEP 57	AB	91	5.2	94
Show		12323+1335	LDS1317	AC	351	12.3	94
Show		12290+1400	LDS1313		138	50.5	99
Show		12214+1223	LDS1295	AB	118	556.7	102
Show		12350+1319	SKF1852		20	1.0	113
Show		12360+1224	SHN 24		234	0.4	114
Show		12205+1227	GWP1790		290	93.4	115
Show		12235+1355	HO 53	AB	305	2.9	116
Show		12353+1318	LAW 1		237	0.3	117
Show		12286+1021	TDS8401		105	0.7	122
Show		12357+1326	CVR1452		146	4.6	126
Show		12360+1124	STF1661		253	2.3	127
Show		12364+1131	LDS1327		35	8.6	129
Show		12208+1332	UC 2321		164	17.4	130
Show		12321+1420	GRV1156		207	30.4	130
Show		12252+1424	TDS8372		107	0.4	131
Show		12351+1349	CVR1448		195	3.3	132
Show		12321+1423	SKF1584		258	2.0	133
Show		12333+1417	LDS1319		263	35.1	136
Show		12337+1415	NSN 630		292	2.2	138
Show		12337+1026	BRT3298		189	9.6	143
Show		12205+1058	BRT1277		325	3.2	143
Show		12187+1148	STF1628	AB	239	9.5	145
Show		12187+1148	STF1628	AC	344	45.2	145
Show		12201+1351	BU 27		104	3.6	150
Show		12277+1452	KPP3254		244	2.3	150
Show		12347+1420	SHN 162		-1	0.4	151
Show		12335+1012	HJ 212		264	21.7	152
Show		12241+1004	CVR 653		124	13.7	152
Show		12358+1408	HEI 159		320	0.3	152
Show		12179+1147	HU 1138		1	1.3	157
Show		12303+0949	CVR1442		355	4.1	157
Show		12388+1252	AG 343		325	8.5	157
Show		12390+1255	BPM 594		152	29.6	160
Show		12288+1503	NSN 629		356	2.5	161
Show		12180+1127	GWP1786		262	87.0	162

WDS 12284+1223 : COMPONENTS

	A
B	pa=24.7° sep=15.88"

12284+1223 A

Componente originario normalizzato	AB		Coord arcsec 2000	122818.30+122236.4		Mag	12.55		PmRA	-184.00
PmDE	-127.0		HIP	60849

Hipparcos

Catalog	H	HIP	60849	Proxy		RAhms	12 28 18.41
DEdms	+12 22 37.5	Vmag	12.55	VarFlag		R Vmag	H
RAdeg	187.077	DEdeg	12.3771	AstroRef		Plx	-3.11
CCDM	12283+1223	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD		BD
CD		CP		Dm number		VIred	0.72
SpType		R SpType		Coord arcsec 2000	122818.41+122237.5

Hipparcos 2

HIP	60849	Sn	5	So	0	Nc	1
RArad	3.2651043051	DErad	0.2160209505	Plx	-1.11	PmRA	-182.3
PmDE	-126.63	E RArad	4.74	E DErad	3.25	E Plx	5.83
E pmRA	5.9	E pmDE	3.71	Hpmag	12.6816	E Hpmag	0.01
SHp	0.103	VA	0	BV	0	E BV	0
VI	0

12284+1223 B

Componente originario normalizzato	AB		Coord arcsec 2000	122818.75+122250.8		Mag	19.09		PmRA	-184.00
PmDE	-127.0		Calc delta mag	6.54		Calc coord	yes