21146-2849 LDS 4872

21^h 14^m 34.88^s -28° 49' 51.8" P.A. 276.00 sep 62.7 mag 12.81,14.92

Coord 2000	21146-2849	Discov num	LDS4872	Comp		Coord arcsec 2000	21 14 34.88 -28 49 51.8
Date first	1960	Date last	2016	Obs	9
Pa first	275	Pa last	275.8	P.A. Now (θ)	275.8°
Sep first	62.0	Sep last	62.711	Sep. Now (ρ)	62.711"
Mag pri	12.81	Mag sec	14.92	delta mag (ΔM)	2.11	Spectral class
Pri motion ra	-087	Sec motion ra	-088
Pri motion dec	-247	Sec motion dec	-247
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.004 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

Gaia DR2

6788783367150646400

WDS 21146-2849 LDS 4872 : NOTES

discov_num	notes	refcode
LDS4872	NLTT 50827/50824	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
21146-2849	LDS4872		2000	3	276	62.7	12.81	14.92		D	211434.88-284951.8
21146-2849	LDS4872		2010	6	276	62.7	12.81	14.92		NV	211434.88-284951.8
21146-2849	LDS4872		2015	7	276	62.7	12.81	14.92		NV	211434.88-284951.8
21146-2849	LDS4872		2016	9	276	62.7	12.81	14.92		NV	211434.88-284951.8

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

WDS 21146-2849 LDS 4872 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21146-2849 LDS 4872 : MEASURES

No records found.

WDS 21146-2849 : VIRTUAL EYEPIECE

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WDS 21146-2849 : ALADIN DSS IMAGE @ 21^h 14^m 34.88^s -28° 49' 51.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21146-2849 LDS 4872 : 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		21146-2849	LDS4872		276	62.7
Show		21154-2842	LDS4874		34	22.5	14
Show		21131-2850	BRT3096		93	4.3	20
Show		21140-2914	RST2173		11	1.3	26
Show		21149-2921	HDS3022		18	0.4	32
Show		21169-2836	DAW 154		88	1.1	34
Show		21146-2935	B 2492			7.2	46
Show		21111-2858	HU 85		141	2.9	47
Show		21157-2803	BRT3099		298	4.4	48
Show		21140-2940	MET 91		161	1.9	51
Show		21161-2802	LDS5920		15	52.4	52
Show		21181-2931	LDS 738	AB	182	27.4	62
Show		21181-2931	LDS 738	Aa,Ab	101	4.8	62
Show		21194-2831	B 523		212	0.8	67
Show		21166-2746	BRT3100		168	7.1	70
Show		21090-2829	DAW 153		279	3.6	77
Show		21094-2928	B 517		129	4.2	79
Show		21121-2735	HJ 3012		320	25.8	81
Show		21205-2920	LDS5921		91	313.7	84
Show		21136-2725	LDS5919		214	219.6	85
Show		21212-2914	FIN 6		209	1.2	90
Show		21178-2714	STN 54		238	7.1	106
Show		21192-3018	RST2176	AB	246	0.8	107
Show		21192-3018	WIS 348	AC	239	171.8	107
Show		21212-2744	HDS3040		65	0.3	110
Show		21121-3035	BU 251		232	1.8	111
Show		21105-2711	BRG 32		314	9.4	113
Show		21145-3045	RSS 556		24	11.8	116
Show		21200-2718	BU 252		88	2.1	117
Show		21111-3041	HJ 5248		319	5.3	120
Show		21140-2650	RST2174		11	0.6	120
Show		21231-2806	HDS3047		103	0.1	121
Show		21210-2725	UC 4451		203	24.7	121
Show		21162-2651	RST2175		329	1.9	122
Show		21076-3011	RST2172	AB	310	0.8	123
Show		21076-3011	SKF1252	AB,C	288	17.6	123
Show		21125-2649	UC 4402		325	36.0	125
Show		21218-3014	UC 4457		240	34.7	126
Show		21064-3002	JSP 822		74	0.5	129
Show		21150-3059	RSS 557		339	55.4	130
Show		21061-2727	KPP1653		186	12.7	139
Show		21251-2831	LDS5923		208	33.3	142
Show		21181-2636	KPP 713		34	6.3	142
Show		21188-2637	SEE 443		295	1.3	145
Show		21113-2632	TDT2811		96	0.7	145
Show		21035-2842	UC 4368		74	20.4	146
Show		21209-3054	HJ 5263		93	27.9	150
Show		21137-3121	BRT3097	AB	124	3.4	152
Show		21229-2705	I 1441		159	1.8	153
Show		21032-2945	BRT3095		104	4.7	159
Show		21266-2839	TDT2970		278	0.6	159

WDS 21146-2849 : COMPONENTS

	A
B	pa=276.6° sep=55.02"

21146-2849 A

Componente originario normalizzato	AB		Coord arcsec 2000	211434.88-284951.8		Mag	12.81		PmRA	-87.00
PmDE	-247.0

21146-2849 B

Componente originario normalizzato	AB		Coord arcsec 2000	211430.72-284945.5		Mag	14.92		PmRA	-88.00
PmDE	-247.0		Calc delta mag	2.11		Calc coord	yes