15580-3144 HNK 4 (HD 142851)

15^h 57^m 59.34^s -31° 43' 44.1" P.A. 260.00 sep 0.1 mag 7.10,12.00 Sp A0V dist. 126.74 pc (413.43 l.y.)

Coord 2000	15580-3144	Discov num	HNK 4	Comp		Coord arcsec 2000	15 57 59.34 -31 43 44.1
Date first	2010	Date last	2018	Obs	2
Pa first	266	Pa last	260.2	P.A. Now (θ)	260.2°
Sep first	0.1	Sep last	0.11	Sep. Now (ρ)	0.11"
Mag pri	7.10	Mag sec	12.00	delta mag (ΔM)	4.9	Spectral class	A0V (white)
Pri motion ra	-018	Sec motion ra
Pri motion dec	-028	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	HD 142851	Constellation	Lupus	SAO	207168	HIP	78196
Tycho2	7329-00908-1	Gaia DR2	6039491481598054528	HD	142851	GC	21423
CD	CD-3112426	CP	CP-31 4277	Distance	126.74	Distance ly	413.43

WDS 15580-3144 HNK 4 (HD 142851) : NOTES

discov_num	notes	refcode
HNK 4	Member of Sco-Cen Association. Primary mass 2.46 +0.31/-0.59 Msun;
	secondary mass estimated at 98 +42/-12 Mjup (for age 10 Myr), or
	152 +56/-28 Mjup (for age 20 Myr).	Hnk2015

REFERENCES

refcode	metd	author	reference
Hnk2015	Am j	Hinkley, S., Kraus, A.L., Ireland, M.J., Cheetham, A., Carpenter, J.M.,	2015ApJ...806L...9H
Hnk2015		Tuthill, P., Lacour, S., Evans, T.M., & Hauboas, X.
Hnk2015		ApJL 806, 9, 2015

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15580-3144	HNK 4		2010	1	266	0.1	7.10	12.00	A0V	N K	155759.34-314344.1
15580-3144	HNK 4		2018	2	260	0.1	7.10	12.00	A0V	N K	155759.34-314344.1

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WDS 15580-3144 HNK 4 (HD 142851) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15580-3144 HNK 4 (HD 142851) : MEASURES

No records found.

WDS 15580-3144 (HD 142851) : 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 15580-3144 (HD 142851) : ALADIN DSS IMAGE @ 15^h 57^m 59.34^s -31° 43' 44.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15580-3144 HNK 4 (HD 142851) : 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		15580-3144	HNK 4		260	0.1
Show		15579-3158	HJ 4821		324	19.3	15
Show		15588-3203	FAL 50		266	14.9	23
Show		15591-3126	UC 3098		250	53.5	23
Show		15577-3217	UC 3093		42	10.0	34
Show		15556-3200	KOH 56	BC	305	3.0	35
Show		15565-3113	BRT3025		92	3.2	38
Show		16006-3112	KPP1232		201	9.3	46
Show		15570-3228	BRT1695		282	3.4	47
Show		16010-3219	PRO 127		194	15.5	52
Show		15538-3133	LDS4597		290	3.0	56
Show		16009-3227	UC 3105		204	93.6	58
Show		15537-3127	UC 3082		160	86.2	58
Show		16018-3111	TDS9734		282	0.6	59
Show		15525-3153	LDS5847		31	1.1	69
Show		16029-3210	PRO 128	AB	131	6.3	69
Show		16029-3210	KPP4386	AC	346	44.1	69
Show		16029-3210	KPP4386	BC	342	49.3	69
Show		16004-3042	KPP 700		355	6.2	69
Show		15549-3243	PRO 126		104	6.3	71
Show		15537-3229	UC 3083		191	62.7	72
Show		16025-3231	UC 3106		173	12.2	74
Show		15580-3029	I 978	AB	7	0.8	76
Show		15580-3029	B 9026	AC	33	5.1	76
Show		15585-3027	RSS 390		70	16.8	78
Show		16020-3042	B 1313		306	0.1	81
Show		15525-3224	KOH 52		261	2.6	81
Show		15514-3131	KOH 51		174	0.4	85
Show		16030-3240	RST2994		292	1.3	85
Show		15594-3020	TOK 859		234	0.7	86
Show		16027-3040	USD 365	AB	81	2.4	89
Show		16027-3040	VSP 47	Aa,Ab	50	0.1	89
Show		16041-3227	RST2997		139	0.6	90
Show		16051-3219	KPP1389		311	10.4	98
Show		15582-3005	BRT3026		105	3.8	100
Show		16055-3214	B 1314		153	0.3	101
Show		15501-3202	PRO 125		335	11.0	103
Show		15573-3000	TOK 170		277	7.9	105
Show		15513-3036	RSS 388	AB	13	7.6	110
Show		16038-3304	HWE 82		346	2.3	110
Show		16065-3121	B 1315		67	0.6	111
Show		15495-3116	JNN 211	AB	60	1.2	112
Show		16043-3303	NSN 390		327	1.5	113
Show		15492-3123	KPP2478		10	22.2	115
Show		16053-3254	I 1584		315	2.4	117
Show		16059-3243	B 2798		217	3.8	118
Show		16057-3252	SEE 264	AB	356	0.8	119
Show		16057-3252	SEE 264	AC	3	10.0	119
Show		16057-3252	WSI 84	Ba,Bb	212	0.1	119
Show		16073-3135	DAW 19		40	1.3	119
Show		16036-3008	KOU 47	AB	102	9.0	120

WDS 15580-3144 : COMPONENTS

	A
B	pa=258.5° sep=0.09"

15580-3144 A

Componente originario normalizzato	AB	Name	HD 142851	Coord arcsec 2000	155759.34-314344.1	Mag	7.1
Spectral class	A0V (white)	PmRA	-18.00	PmDE	-28.0	SAO	207168
HIP	78196	Tycho2	7329-00908-1	HD	142851	GC	21423
CD	CD-3112426	CP	CP-31 4277

Tycho2

Tycho2	7329-00908-1	Pflag		RAmdeg	239.49728238	DEmdeg	-31.72893046
PmRA	-13.8	PmDE	-27.1	E RAmdeg	4	E DEmdeg	4
E pmRA	1.2	E pmDE	1.2	EpRAm	1991.36	EpDEm	1991.03
Num	14	Q RAmdeg	1.2	Q DEmdeg	0.8	Q pmRA	1.3
Q pmDE	0.7	BTmag	6.989	E BTmag	0.015	VTmag	7.015
E VTmag	0.010	Prox	999	TYC	T	HIP	78196
CCDM		RAdeg	239.49731972	DEdeg	-31.72886500	EpRA 1990	1.66
EpDE 1990	1.31	E RAdeg	3.6	E DEdeg	4.1	Posflg
Corr	0.2

SAO

SAO	207168	DelFlag		RA1950		PmRA1950	0.0003
DE1950		PmDE1950	-0.028	Vmag	7.1	SpType	B9
Double code		Source	70	CatNum	21423	DM	CD-3112426
DMcomp		BDsup		HD	142851	M HD	0
GC	21423	RA1950rad	4.1662716	DE1950rad	-0.55127321	PmRA2000	0.0002
PmDE2000	-0.025

Hipparcos

Catalog	H	HIP	78196	Proxy		RAhms	15 57 59.36
DEdms	-31 43 43.9	Vmag	7.03	VarFlag		R Vmag	H
RAdeg	239.497	DEdeg	-31.7289	AstroRef		Plx	8.98
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	142851	BD
CD	CD-3112426	CP	CP-31 4277	Dm number	-3112426	VIred	0
SpType	A0V	R SpType		Coord arcsec 2000	155759.36-314343.9

Hipparcos 2

HIP	78196	Sn	5	So	0	Nc	1
RArad	4.1800167737	DErad	-0.5537731452	Plx	7.89	PmRA	-17.67
PmDE	-27.74	E RArad	0.43	E DErad	0.27	E Plx	0.53
E pmRA	0.71	E pmDE	0.56	Hpmag	7.0302	E Hpmag	0.0009
SHp	0.008	VA	0	BV	-0.011	E BV	0.007
VI	0.01

15580-3144 B

Componente originario normalizzato	AB		Coord arcsec 2000	155759.33-314344.1		Mag	12		Calc delta mag	4.9
Calc coord	yes