20345-4216 NSN 481

20^h 34^m 27.45^s -42° 15' 57.8" P.A. 91.00 sep 1.7 mag 14.29,17.55

Coord 2000	20345-4216	Discov num	NSN 481	Comp		Coord arcsec 2000	20 34 27.45 -42 15 57.8
Date first	2015	Date last	2016	Obs	2
Pa first	91	Pa last	91.1	P.A. Now (θ)	91.1°
Sep first	1.7	Sep last	1.723	Sep. Now (ρ)	1.723"
Mag pri	14.29	Mag sec	17.55	delta mag (ΔM)	3.26	Spectral class
Pri motion ra	-072	Sec motion ra	-070
Pri motion dec	-180	Sec motion dec	-177
Notes	T (Parallax indicates physical)

rPM=0.019 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

WDS 20345-4216 NSN 481 : 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
20345-4216	NSN 481		2015	1	91	1.7	14.29	17.55		T	203427.45-421557.8
20345-4216	NSN 481		2016	2	91	1.7	14.29	17.55		T	203427.45-421557.8

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

WDS 20345-4216 NSN 481 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20345-4216 NSN 481 : MEASURES

No records found.

WDS 20345-4216 : 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 20345-4216 : ALADIN DSS IMAGE @ 20^h 34^m 27.45^s -42° 15' 57.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20345-4216 NSN 481 : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20345-4216	NSN 481		91	1.7
Show		20344-4221	DON 988	AB	118	0.6	5
Show		20344-4221	DON 988	AB,C	89	23.2	5
Show		20351-4226	AOT 81		185	14.1	12
Show		20355-4241	AOT 82		201	4.2	28
Show		20348-4244	AOT 80		246	11.1	28
Show		20370-4208	AOT 86		303	9.1	30
Show		20356-4243	AOT 83		116	7.8	31
Show		20360-4147	AOT 84		137	18.9	34
Show		20374-4202	CPO 89		284	16.0	36
Show		20377-4236	UC 4238		182	83.6	42
Show		20381-4251	UC 4240		351	45.0	54
Show		20389-4253	AOT 88		55	15.8	62
Show		20331-4116	BRT1111		162	4.3	62
Show		20392-4131	KPP1483		59	11.1	70
Show		20409-4224	I 1121	BC	243	9.3	72
Show		20409-4224	HJ 5211	AB	299	20.0	73
Show		20337-4104	B 490		64	1.2	73
Show		20280-4237	RSS 36		267	35.7	75
Show		20319-4054	GLI 259	AB	159	4.1	87
Show		20319-4054	I 1627	AC	346	17.6	87
Show		20417-4253	TDT2475		303	1.0	88
Show		20400-4109	UC 4250		315	28.8	92
Show		20276-4110	UC 4190		62	27.4	102
Show		20391-4345	LDS 717		308	22.2	103
Show		20338-4033	JC 18	AB	224	4.4	103
Show		20338-4033	JC 18	AC	145	108.0	103
Show		20267-4334	I 1420		358	0.3	116
Show		20240-4231	DON 984		258	0.9	117
Show		20239-4225	BU 763	AB	180	0.5	118
Show		20239-4225	I 1626	AC	268	18.6	118
Show		20239-4225	SEE 511	AD	219	29.8	118
Show		20353-4017	SEE 421	AB	7	14.7	120
Show		20353-4017	KPP4396	AC	51	4.2	120
Show		20400-4359	DON 990	AB	39	0.3	120
Show		20400-4359	DON 990	AC	292	7.0	120
Show		20289-4402	HJ 5201		117	10.7	124
Show		20276-4038	RSS 547		12	10.0	125
Show		20225-4203	HJ 5190	AB	312	40.0	135
Show		20225-4203	HJ 5190	AC	283	56.8	135
Show		20339-4431	I 127	BC	209	0.6	135
Show		20339-4431	I 127	AB	50	62.3	136
Show		20339-4431	DAM 325	AD	91	49.9	136
Show		20339-4431	DAM 325	AE	101	70.0	136
Show		20235-4319	TDT2231		227	0.8	137
Show		20385-4425	I 1424		226	2.4	138
Show		20427-4400	KPP3106		232	2.5	138
Show		20348-3957	WG 258		239	8.5	138
Show		20404-4012	WG 260		31	6.2	144
Show		20296-4000	UC 4200		302	40.7	147
Show		20372-4445	TOK 369		245	0.5	152

WDS 20345-4216 : COMPONENTS

	A
B	pa=91.5° sep=1.28"

20345-4216 A

Componente originario normalizzato	AB		Coord arcsec 2000	203427.45-421557.8		Mag	14.29		PmRA	-72.00
PmDE	-180.0

20345-4216 B

Componente originario normalizzato	AB		Coord arcsec 2000	203427.56-421557.8		Mag	17.55		PmRA	-70.00
PmDE	-177.0		Calc delta mag	3.26		Calc coord	yes