15494-7937 HJ 4787 (HD 139668)

15^h 49^m 22.18^s -79° 37' 24.7" P.A. 302.00 sep 10.0 mag 9.27,10.15 Sp G4V+G4V dist. 102.99 pc (335.95 l.y.)

Coord 2000	15494-7937	Discov num	HJ 4787	Comp		Coord arcsec 2000	15 49 22.18 -79 37 24.7
Date first	1835	Date last	2016	Obs	23
Pa first	305	Pa last	302.4	P.A. Now (θ)	302.4°
Sep first	12.5	Sep last	10.044	Sep. Now (ρ)	10.044"
Mag pri	9.27	Mag sec	10.15	delta mag (ΔM)	0.88	Spectral class	G4V+G4V (yellow/yellow)
Pri motion ra	-024	Sec motion ra	-031
Pri motion dec	-053	Sec motion dec	-040
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.254 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 139668	Constellation	Apus	HIP	77492	Tycho2	9437-01108-1
Gaia DR2	5778545142886635776	HD	139668	CP	CP-79 865	Distance	102.99
Distance ly	335.95

WDS 15494-7937 HJ 4787 (HD 139668) : NOTES

discov_num	notes	refcode
HJ 4787	SWR 180. CPM pair	Skf2004

REFERENCES

refcode	metd	author	reference
Skf2004	-	Skiff, B.A.	...................
Skf2004		private communication, 2004 (may not be properly precessed)
Skf2004		(coordinates and identifications for Stock & Wroblewski pairs)

DISCOVERER

idgroup	discov	author
1	HJ	Herschel, J.F.W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15494-7937	HJ 4787		2004	19	302	10.3	9.27	10.15	G4V G4V	N D	154922.18-793724.7
15494-7937	HJ 4787		2010	21	302	9.8	9.27	10.15	G4V+G4V	NV	154922.18-793724.7
15494-7937	HJ 4787		2015	21	302	10.0	9.27	10.15	G4V+G4V	NV	154922.18-793724.7
15494-7937	HJ 4787		2016	23	302	10.0	9.27	10.15	G4V+G4V	NV	154922.18-793724.7

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

WDS 15494-7937 HJ 4787 (HD 139668) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15494-7937 HJ 4787 (HD 139668) : MEASURES

No records found.

WDS 15494-7937 (HD 139668) : VIRTUAL EYEPIECE

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

WDS 15494-7937 (HD 139668) : ALADIN DSS IMAGE @ 15^h 49^m 22.18^s -79° 37' 24.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15494-7937 HJ 4787 (HD 139668) : 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		15494-7937	HJ 4787		302	10.0
Show		15519-7930	R 266		20	21.4	11
Show		15470-7927	RST2973		127	2.5	13
Show		15431-7945	UC 3050			13.5	19
Show		15483-7902	TDS9635		217	0.5	36
Show		15562-7902	LDS 540		57	26.5	41
Show		16047-7931	KPP1760		19	13.6	43
Show		15451-8025	KPP1474		110	11.1	49
Show	Karaka	15357-8012	HJ 4759		73	24.0	51
Show		15520-7843	HJ 4790		346	12.5	55
Show		15465-8032	HJ 4780		270	5.0	56
Show		15506-7841	TDS9655		325	0.8	57
Show		15306-8009	RST2952		16	2.3	59
Show		16016-7843	HDS2259		337	0.5	65
Show		15586-8045	RST2981		293	6.9	72
Show		16003-8104	UC 3103		282	33.4	92
Show		15599-7802	I 333		323	0.9	101
Show		15576-7749	RSS 389		357	17.0	112
Show		15321-7752	TDS9540		120	0.6	117
Show		16079-7754	UC 3123		208	82.0	117
Show		15361-8144	RST2956	AB	42	2.6	131
Show		15325-7731	HJ 4760		14	18.9	136
Show		15567-7713	HJ 4801		158	13.0	146
Show		15360-7716	TVB 277		291	21.5	148
Show		15537-7707	RST2980		223	3.3	151
Show		16021-7708	TDS9736		41	1.0	155
Show		16052-7710	RST2987		239	1.4	155
Show		16057-7656	TDS9752		166	0.7	170
Show		15550-7646	NZO 61		133	4.5	172
Show		15336-7647	HDS2183		44	0.3	178
Show		15522-7633	KPP 353		203	3.9	185
Show		15590-7633	TDS9710		349	0.8	188
Show		15499-8256	TDS9649		56	1.2	199
Show		15323-7622	TDS9542		209	0.6	203
Show		15464-8300	TVB 280		192	17.0	203
Show		15585-7613	KPP2972		356	1.3	207
Show		16066-8304	TDS9758		193	0.5	211
Show		15486-8313	KPP 783		47	6.7	216
Show		15424-7603	UC 3048		78	23.2	216
Show		16078-7608	NZO 71		333	2.3	218
Show		15377-8316	TDS9565		225	0.8	220
Show		15560-8331	TDS9696		240	0.5	235
Show		15545-7525	UC 3087		179	32.2	254
Show		15525-7516	UC 3075		261	35.6	262
Show		15377-7516	HEI 786		226	1.0	264
Show		15491-8403	TVB 281		117	9.0	266
Show		15591-7507	UC 3099		338	51.9	273
Show		15554-7459	UC 3089		191	62.9	280
Show		15345-7458	HEI 785	AB	130	3.4	284
Show		15345-7458	UC 3028	AC	81	27.9	284
Show		15418-8421	GLI 217		201	3.1	285

WDS 15494-7937 : COMPONENTS

	A
B	pa=344.2° sep=5.59"

15494-7937 A

Componente originario normalizzato	AB	Name	HD 139668	Coord arcsec 2000	154922.18-793724.7	Mag	9.27
Spectral class	G4V (yellow)	PmRA	-24.00	PmDE	-53.0	HIP	77492
Tycho2	9437-01108-1	HD	139668	CP	CP-79 865

Tycho2

Tycho2	9437-01108-1	Pflag		RAmdeg	237.34239428	DEmdeg	-79.62353452
PmRA	-26.2	PmDE	-49.6	E RAmdeg	11	E DEmdeg	10
E pmRA	1.4	E pmDE	1.4	EpRAm	1989.94	EpDEm	1990.20
Num	8	Q RAmdeg	0.8	Q DEmdeg	0.7	Q pmRA	0.9
Q pmDE	0.7	BTmag	10.052	E BTmag	0.024	VTmag	9.267
E VTmag	0.016	Prox	101	TYC	T	HIP	77492
CCDM	A	RAdeg	237.34273667	DEdeg	-79.62341917	EpRA 1990	1.57
EpDE 1990	1.64	E RAdeg	11.1	E DEdeg	10.3	Posflg
Corr	0.0

Hipparcos

Catalog	H	HIP	77492	Proxy		RAhms	15 49 22.26
DEdms	-79 37 24.3	Vmag	9.16	VarFlag		R Vmag	H
RAdeg	237.343	DEdeg	-79.6234	AstroRef	A	Plx	8.83
CCDM	15493-7937	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	302	Rho	10.045	HD	139668	BD
CD		CP	CP-79 865	Dm number	-79 865	VIred	0.76
SpType	G3/G5III	R SpType		Coord arcsec 2000	154922.26-793724.3

Hipparcos 2

HIP	77492	Sn	15	So	3	Nc	2
RArad	4.1424120966	DErad	-1.3896908133	Plx	9.71	PmRA	-25.39
PmDE	-53.17	E RArad	1.14	E DErad	1.14	E Plx	1.5
E pmRA	1.16	E pmDE	1.45	Hpmag	9.3003	E Hpmag	0.0075
SHp	0.023	VA	0	BV	0.726	E BV	0.019
VI	0.78

15494-7937 B

Componente originario normalizzato	AB		Coord arcsec 2000	154921.61-793719.3		Mag	10.15		Spectral class	G4V (yellow)
PmRA	-31.00		PmDE	-40.0		Calc delta mag	0.88		Calc coord	yes