18205-4219 DON 889

18^h 20^m 31.51^s -42° 18' 52.2" P.A. 260.00 sep 0.8 mag 9.70,12.70 Sp A1V

Coord 2000	18205-4219	Discov num	DON 889	Comp		Coord arcsec 2000	18 20 31.51 -42 18 52.2
Date first	1931	Date last	1948	Obs	3
Pa first	262	Pa last	259.5	P.A. Now (θ)	259.5°
Sep first	0.8	Sep last	0.82	Sep. Now (ρ)	0.82"
Mag pri	9.70	Mag sec	12.70	delta mag (ΔM)	3	Spectral class	A1V (white)
Pri motion ra	+004	Sec motion ra
Pri motion dec	-006	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Corona Austrina		SAO	228932		Tycho2	7909-02006-1		Gaia DR2	6721605577537760896
HD	168195		DM	CP-42 8368

WDS 18205-4219 DON 889 : 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
18205-4219	DON 889		1948	3	260	0.8	9.70	12.70	A1V		182031.51-421852.2

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WDS 18205-4219 DON 889 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18205-4219 DON 889 : MEASURES

No records found.

WDS 18205-4219 : VIRTUAL EYEPIECE

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WDS 18205-4219 : ALADIN DSS IMAGE @ 18^h 20^m 31.51^s -42° 18' 52.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18205-4219 DON 889 : 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		18205-4219	DON 889		260	0.8
Show		18195-4213	BRT1042		264	7.0	13
Show		18224-4232	TDT 820		237	2.1	25
Show		18233-4247	COO 224		135	3.0	42
Show		18175-4245	CPO 579		256	3.0	43
Show		18228-4304	KPP3112		334	2.4	52
Show		18251-4148	BRT1050		312	2.8	60
Show		18162-4304	LDS 631		274	16.1	67
Show		18269-4228	BRT1054		165	3.5	71
Show		18270-4223	BRT1055		81	5.5	72
Show		18161-4316	I 1357		36	6.5	75
Show		18135-4230	BRT1033		91	2.8	79
Show		18133-4220	BRT1032		93	5.6	81
Show		18274-4154	TDT 883		294	0.5	81
Show		18155-4120	KPP2266		341	19.0	81
Show		18139-4140	BRT1035		89	5.2	84
Show		18143-4309	SHY 740		345	999.9	85
Show		18135-4147	BRT1034		171	3.0	86
Show		18171-4336	HDS2583		10	0.1	86
Show		18211-4344	BRT1045		74	4.3	87
Show		18128-4233	BRT1030		7	4.6	88
Show		18139-4126	BRT1036		194	6.1	91
Show		18222-4046	WG 233		6	11.5	95
Show		18200-4354	HDS2591		27	0.3	96
Show		18289-4246	CPO9267		36	5.6	97
Show		18227-4045	CBL 169		160	12.7	98
Show		18118-4238	I 1353		73	1.2	99
Show		18293-4157	B 2449		269	10.2	100
Show		18297-4221	BRT1060		179	3.2	103
Show		18295-4243	DON 904		108	1.2	103
Show		18285-4129	BRT1058	AB	178	5.2	103
Show		18285-4129	BRT1058	Aa,Ab	102	0.2	103
Show		18161-4351	DAM 50		49	3.8	105
Show		18298-4241	BRT1059		23	2.7	105
Show		18137-4108	ARY 125	AB	354	25.9	105
Show		18137-4108	ARY 125	AC	76	27.9	105
Show		18161-4353	CPO9261		25	5.2	106
Show		18210-4406	DON 890		235	0.9	108
Show		18210-4407	TDT 813		145	2.1	108
Show		18287-4318	DON 903		149	1.2	108
Show		18302-4202	CPO 587		56	4.6	110
Show		18300-4149	TDT 915		90	0.8	110
Show		18167-4034	WG 229		206	6.3	113
Show		18116-4125	I 1352		72	2.1	114
Show		18300-4134	RST2058		38	0.5	115
Show		18213-4024	WG 232		206	6.0	115
Show		18218-4413	I 1363		297	0.8	116
Show		18243-4407	DUN 221		162	74.0	116
Show		18105-4150	BRT1028		299	4.0	116
Show		18209-4021	WG 231		231	9.3	118
Show		18213-4416	BRT1046		311	5.1	118

WDS 18205-4219 : COMPONENTS

	A
B	pa=255.9° sep=0.61"

18205-4219 A

Componente originario normalizzato	AB	Coord arcsec 2000	182031.51-421852.2	Mag	9.7	Spectral class	A1V (white)
PmRA	4.00	PmDE	-6.0	SAO	228932	Tycho2	7909-02006-1
HD	168195	DM	CP-42 8368

Tycho2

Tycho2	7909-02006-1	Pflag		RAmdeg	275.13130340	DEmdeg	-42.31451670
PmRA	6.2	PmDE	-4.6	E RAmdeg	11	E DEmdeg	13
E pmRA	1.2	E pmDE	1.2	EpRAm	1989.61	EpDEm	1988.36
Num	6	Q RAmdeg	0.8	Q DEmdeg	1.0	Q pmRA	0.8
Q pmDE	0.9	BTmag	9.630	E BTmag	0.022	VTmag	9.605
E VTmag	0.025	Prox	999	TYC	T	HIP
CCDM		RAdeg	275.13128500	DEdeg	-42.31450556	EpRA 1990	1.80
EpDE 1990	1.79	E RAdeg	11.3	E DEdeg	14.3	Posflg
Corr	0.0

SAO

SAO	228932	DelFlag		RA1950		PmRA1950	0.0011
DE1950		PmDE1950	0.007	Vmag	9.4	SpType	A0
Double code		Source	48	CatNum	17281	DM	CP-42 8368
DMcomp		BDsup		HD	168195	M HD	0
GC		RA1950rad	4.78634931	DE1950rad	-0.73892063	PmRA2000	0.0011
PmDE2000	0.006

CCDM

Ccdm	18205-4219	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.46	DDEs	8.9
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.5	Sp	A0	PmNote	*
PmRA	12	PmDE	7	Dm number	-4213139	Cat1	CD
Name2	228932	Cat2	SAO	HD	168195	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18134S4221A
HIC

18205-4219 B

Componente originario normalizzato	AB		Coord arcsec 2000	182031.46-421852.3		Mag	12.7		Calc delta mag	3
Calc coord	yes

CCDM

Ccdm	18205-4219	RComp		Comp	B	Note1
Note2		Discov num	DON 889	DRAs		DDEs
R dRAs		Year	1931	Theta	263	Rho	0.8
Obs	3	Vmag	12.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18134S4221B
HIC