21015-3114 NSN 491

21^h 01^m 29.80^s -31° 14' 22.2" P.A. 314.00 sep 2.9 mag 15.33,15.92

Coord 2000	21015-3114	Discov num	NSN 491	Comp		Coord arcsec 2000	21 01 29.80 -31 14 22.2
Date first	1999	Date last	2016	Obs	5
Pa first	312	Pa last	314.3	P.A. Now (θ)	314.3°
Sep first	2.9	Sep last	2.934	Sep. Now (ρ)	2.934"
Mag pri	15.33	Mag sec	15.92	delta mag (ΔM)	0.59	Spectral class
Pri motion ra	+146	Sec motion ra	+148
Pri motion dec	-073	Sec motion dec	-076
Notes	T (Parallax indicates physical)

rPM=0.022 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

WDS 21015-3114 NSN 491 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Nsn2013	M+ w	Nanson, J., McGaughey, S. & Armstrong, J.D.	2013JDSO....9..267N
Nsn2013	+C	JDSO 9, 267, 2013
Nsn2014	C u	Nanson, J. & Smith, S.C.	2014JDSO...10..139N
Nsn2014		JDSO 10, 139, 2014
Nsn2015	C -	Nanson, J., Smith, S.C. & Thuemen, C.	2015JDSO...11...12N
Nsn2015		JDSO 11, 12, 2015
Nsn2016	not -	Nanson, J.	...................
Nsn2016		private communication, 2016
Nsn2016b	C j	Nanson, J. & Knapp, W.R.A.	2016JDSO...12..450N
Nsn2016b		JDSO 12, 450, 2016
Nsn2016c	not -	Nanson, J.	2016JDSO...12..573N
Nsn2016c		JDSO 12, 573, 2016
Nsn2017a	not -	Nanson, J.	...................
Nsn2017a		private communication, 2017
Nsn2017b	not -	Nanson, J.	...................
Nsn2017b		private communication, 2017
Nsn2017c	C j	Nanson, J. & Knapp, W.R.A.	2017JDSO...13..299N
Nsn2017c	+E+	JDSO 13, 299, 2017
Nsn2017c	+Hg
Nsn2017d	not -	Nanson, J.	...................
Nsn2017d		private communication, 2017
Nsn2017e	not -	Nanson, J. & Knapp, W.	...................
Nsn2017e		private communication, 2017
Nsn2018a	Hg j	Nanson, J.	...................
Nsn2018a		private communication, 2018 (15 February 2018 email)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21015-3114	NSN 491		2015	4	314	2.9	15.33	15.92		T	210129.80-311422.2
21015-3114	NSN 491		2016	5	314	2.9	15.33	15.92		T	210129.80-311422.2

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WDS 21015-3114 NSN 491 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21015-3114 NSN 491 : MEASURES

No records found.

WDS 21015-3114 : VIRTUAL EYEPIECE

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

WDS 21015-3114 : ALADIN DSS IMAGE @ 21^h 01^m 29.80^s -31° 14' 22.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21015-3114 NSN 491 : 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		21015-3114	NSN 491		314	2.9	1
Show		21022-3128	LDS 731		179	59.3	17
Show		20593-3139	KPP2180		130	17.9	38
Show		20594-3031	HDS2992		242	0.1	52
Show		20584-3043	JSP 821		121	2.0	52
Show		21031-3020	LDS4862		114	205.4	57
Show		21013-3215	RST5475		95	26.8	62
Show		20598-3221	UC 4354			39.8	71
Show		20562-3146	B 1001		212	0.3	75
Show		21017-3231	KPP3116		98	2.7	78
Show		21076-3125	SKF 810		48	25.7	80
Show		21052-3221	HJ 5242		265	28.9	82
Show		21038-3231	B 1004		16	2.7	83
Show		20561-3201	JSP 818		357	2.2	83
Show		20563-3216	JSP 819		348	0.8	91
Show		21011-2944	SKF2097		152	87.6	91
Show		20554-3202	TDT2631		243	0.7	92
Show		21032-2945	BRT3095		104	4.7	93
Show		21064-3002	JSP 822		74	0.5	97
Show		21076-3011	RST2172	AB	310	0.8	101
Show		21076-3011	SKF1252	AB,C	288	17.6	101
Show		21027-3254	TDT2711		251	0.5	102
Show		20552-3008	HDS2980		334	0.1	105
Show		20577-3248	ENO 6		24	13.6	106
Show		20591-3301	RST2169		99	1.3	111
Show		21007-3315	TDT2691		258	0.5	122
Show		20517-3109	LDS5913		85	97.0	125
Show		20519-3047	UC 4313		233	12.5	127
Show		20543-3243	TDT2622	Aa,Ab	232	0.5	127
Show		20543-3243	UC 4321	AB	38	24.4	127
Show		20516-3123	KPP2645		163	24.7	127
Show		21111-3041	HJ 5248		319	5.3	129
Show		20556-3304	LDS6419		34	4.7	134
Show		20511-3103	RST2163		231	2.1	134
Show		20592-3325	RST2170		33	1.0	134
Show		20507-3116	B 997		273	0.2	139
Show		20529-3245	B 1000		312	3.6	143
Show		21121-3035	BU 251		232	1.8	143
Show		20503-3058	LDS5911		78	118.0	144
Show		20530-2937	B 506		317	3.2	148
Show		21094-2928	B 517		129	4.2	148
Show		20500-3049	RST2161		271	2.6	151
Show		20579-3339	RED 26		186	18.9	152
Show		20517-2947	RST2164		318	1.0	155
Show		21095-3311	HDS3014	Ba,Bb	268	0.3	155
Show		21035-2842	UC 4368		74	20.4	155
Show		20521-2938	FIN 5		71	2.0	156
Show		21137-3121	BRT3097	AB	124	3.4	157
Show		20516-2943	DAM 668		309	11.2	158
Show		20565-3340	B 1002		324	0.6	159
Show		20517-3303	UC 4311		335	26.1	166

WDS 21015-3114 : COMPONENTS

	A
B	pa=318.8° sep=2.72"

21015-3114 A

Componente originario normalizzato	AB		Coord arcsec 2000	210129.80-311422.2		Mag	15.33		PmRA	146.00
PmDE	-73.0

21015-3114 B

Componente originario normalizzato	AB		Coord arcsec 2000	210129.66-311420.2		Mag	15.92		PmRA	148.00
PmDE	-76.0		Calc delta mag	0.59		Calc coord	yes