18462-4520 DON 921

18^h 46^m 09.42^s -45° 20' 20.6" P.A. 129.00 sep 1.1 mag 10.87,11.27

Coord 2000	18462-4520	Discov num	DON 921	Comp		Coord arcsec 2000	18 46 09.42 -45 20 20.6
Date first	1931	Date last	2016	Obs	6
Pa first	125	Pa last	128.7	P.A. Now (θ)	128.7°
Sep first	0.9	Sep last	1.056	Sep. Now (ρ)	1.056"
Mag pri	10.87	Mag sec	11.27	delta mag (ΔM)	0.4	Spectral class
Pri motion ra	-014	Sec motion ra	-014
Pri motion dec	-016	Sec motion dec	-016
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Corona Austrina

Tycho2

8373-01158-1

Gaia DR2

6705849197937149824

WDS 18462-4520 DON 921 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Don1937	Ma j	Donner, H.F.	1937MmRAS..65...51R
Don1937		MemRAS 65, 51, 1937
Don1955	Ma -	Donner, H.F.	1955POMic..11....1R
Don1955		Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964	Ma j	Donner, H.F.	1964POMic...9...73R
Don1964		Pub. Univ. Michigan Obs. 9, 73, 1964

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18462-4520	DON 921		1991	4	122	1.0	10.87	11.27			184609.42-452020.6
18462-4520	DON 921		2015	5	132	0.9	10.87	11.27			184609.42-452020.6
18462-4520	DON 921		2016	6	129	1.1	10.87	11.27			184609.42-452020.6

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

WDS 18462-4520 DON 921 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18462-4520 DON 921 : MEASURES

No records found.

WDS 18462-4520 : VIRTUAL EYEPIECE

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WDS 18462-4520 : ALADIN DSS IMAGE @ 18^h 46^m 09.42^s -45° 20' 20.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18462-4520 DON 921 : 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		18462-4520	DON 921		129	1.1
Show		18478-4441	UC 3674		63	13.4	43
Show		18503-4509	HDS2671		299	14.5	46
Show		18417-4520	TDT1003		112	7.8	48
Show		18490-4559	CPO 599		68	5.4	49
Show		18476-4430	KPP 425		329	4.9	53
Show		18437-4611	B 1369		71	4.2	57
Show		18417-4448	TDT1002		103	0.9	58
Show		18424-4603	RST 998		332	1.1	59
Show		18396-4520	UC 3632		138	46.6	70
Show		18414-4433	CBL 172		53	36.3	70
Show		18499-4422	DON 925		170	2.7	71
Show		18449-4630	SKF1150		83	28.0	72
Show		18428-4416	LDS 649		240	130.4	75
Show		18395-4545	HU 1527		313	5.0	75
Show		18532-4552	RST1007		35	2.9	81
Show		18541-4519	UC 3715		35	21.0	84
Show		18545-4514	DON 932		338	2.3	89
Show		18487-4647	CPO 84	AB	27	2.3	91
Show		18374-4551	DON 912		284	0.4	97
Show		18444-4657	HU 1528		243	3.4	99
Show		18497-4652	CPO9276		150	5.2	99
Show		18387-4419	BRT1072		80	5.3	102
Show		18367-4500	CPO 594		234	5.0	102
Show		18366-4444	TDT 955		231	0.5	108
Show		18437-4705	RST 999		257	3.6	108
Show		18452-4709	TDT1035		209	0.4	109
Show		18481-4330	KPP4341	BC	302	7.1	113
Show		18481-4330	KPP4341	AB	144	2.1	113
Show		18481-4330	KPP4341	AC	297	6.0	113
Show		18354-4522	UC 3621		63	50.4	114
Show		18508-4335	DON 926		274	0.9	117
Show		18555-4420	UC 3726		79	19.9	117
Show		18479-4717	BRT1079		154	5.3	118
Show		18516-4337	UC 3698		114	50.9	119
Show		18364-4419	TSN 50		346	174.9	121
Show		18392-4657	I 1376		3	1.7	121
Show		18366-4630	UC 3626		87	31.5	122
Show		18359-4426	HDS2638		21	7.3	122
Show		18397-4704	CPO 596		181	11.8	124
Show		18468-4318	BRT1077		331	4.1	124
Show		18345-4542	I 1371		353	2.0	125
Show		18408-4330	DON 918		130	2.1	125
Show		18351-4606	RST 992		118	0.3	125
Show		18472-4315	BRT1078		302	3.2	126
Show		18579-4458	DON 936	AB	44	1.3	127
Show		18517-4714	HDS2675		38	12.8	127
Show		18474-4727	UC 3670		86	21.2	128
Show		18583-4514	DEA 18		52	63.2	129
Show		18381-4659	SKF1422	AB	175	16.6	129
Show		18381-4659	I 1375	Ba,Bb	312	0.8	130

WDS 18462-4520 : COMPONENTS

	A
B	pa=138.7° sep=0.88"

18462-4520 A

Componente originario normalizzato	AB		Coord arcsec 2000	184609.42-452020.6		Mag	10.87		PmRA	-14.00
PmDE	-16.0		Tycho2	8373-01158-1

Tycho2

Tycho2	8373-01158-1	Pflag	P	RAmdeg	281.53926213	DEmdeg	-45.33906586
PmRA	-13.7	PmDE	-16.2	E RAmdeg	39	E DEmdeg	49
E pmRA	2.5	E pmDE	2.3	EpRAm	1988.01	EpDEm	1984.71
Num	4	Q RAmdeg	1.4	Q DEmdeg	1.9	Q pmRA	1.4
Q pmDE	2.0	BTmag	11.451	E BTmag	0.083	VTmag	10.870
E VTmag	0.077	Prox	10	TYC	T	HIP
CCDM		RAdeg	281.53918778	DEdeg	-45.33896222	EpRA 1990	1.78
EpDE 1990	1.58	E RAdeg	41.5	E DEdeg	55.5	Posflg	D
Corr	-0.1

18462-4520 B

Componente originario normalizzato	AB		Coord arcsec 2000	184609.47-452021.3		Mag	11.27		PmRA	-14.00
PmDE	-16.0		Tycho2	8373-01158-2		Calc delta mag	0.4		Calc coord	yes

Tycho2

Tycho2	8373-01158-2	Pflag	P	RAmdeg	281.53926213	DEmdeg	-45.33906586
PmRA	-13.7	PmDE	-16.2	E RAmdeg	39	E DEmdeg	49
E pmRA	2.5	E pmDE	2.3	EpRAm	1988.01	EpDEm	1984.71
Num	4	Q RAmdeg	1.4	Q DEmdeg	1.9	Q pmRA	1.4
Q pmDE	2.0	BTmag	11.796	E BTmag	0.102	VTmag	11.266
E VTmag	0.106	Prox	10	TYC	T	HIP
CCDM		RAdeg	281.53953417	DEdeg	-45.33911556	EpRA 1990	1.78
EpDE 1990	1.58	E RAdeg	58.5	E DEdeg	78.4	Posflg	D
Corr	-0.1