18210-4406 DON 890 (HD 168258)

18^h 20^m 57.95^s -44° 06' 09.7" P.A. 235.00 sep 0.9 mag 10.92,11.26 Sp G1/2

Coord 2000	18210-4406	Discov num	DON 890	Comp		Coord arcsec 2000	18 20 57.95 -44 06 09.7
Date first	1931	Date last	1991	Obs	4
Pa first	232	Pa last	234.7	P.A. Now (θ)	234.7°
Sep first	0.7	Sep last	0.891	Sep. Now (ρ)	0.891"
Mag pri	10.92	Mag sec	11.26	delta mag (ΔM)	0.34	Spectral class	G1/2 (yellow)
Pri motion ra	+003	Sec motion ra	+003
Pri motion dec	+004	Sec motion dec	+004
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 168258		Constellation	Corona Austrina		Tycho2	7913-00754-1		Gaia DR2	6720462635194185856
HD	168258

WDS 18210-4406 DON 890 (HD 168258) : 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
18210-4406	DON 890		1991	4	235	0.9	10.92	11.26	G1/2		182057.95-440609.7

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WDS 18210-4406 DON 890 (HD 168258) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18210-4406 DON 890 (HD 168258) : MEASURES

No records found.

WDS 18210-4406 (HD 168258) : VIRTUAL EYEPIECE

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WDS 18210-4406 (HD 168258) : ALADIN DSS IMAGE @ 18^h 20^m 57.95^s -44° 06' 09.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18210-4406 DON 890 (HD 168258) : 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		18210-4406	DON 890		235	0.9
Show		18210-4407	TDT 813		145	2.1	1
Show		18213-4416	BRT1046		311	5.1	11
Show		18218-4413	I 1363		297	0.8	12
Show		18200-4354	HDS2591		27	0.3	16
Show		18211-4344	BRT1045		74	4.3	22
Show		18195-4428	CPO 580		51	3.3	27
Show		18222-4434	CPO9265		204	4.9	31
Show		18220-4437	CPO9264		179	5.8	34
Show		18243-4407	DUN 221		162	74.0	36
Show		18176-4433	SKF1146		152	40.8	46
Show		18183-4444	BRT1041		175	3.5	47
Show		18174-4434	SKF1021		11	46.2	48
Show		18202-4454	BRT1044		143	3.9	49
Show		18257-4412	DON 898		24	0.5	51
Show		18171-4336	HDS2583		10	0.1	53
Show		18161-4353	CPO9261		25	5.2	55
Show		18161-4351	DAM 50		49	3.8	55
Show		18229-4456	BRT1049		121	4.2	55
Show		18199-4506	CPO 581		185	3.5	62
Show		18228-4304	KPP3112		334	2.4	66
Show		18199-4514	B 2442		250	11.7	70
Show		18200-4517	KPP1486		266	11.2	72
Show		18161-4316	I 1357		36	6.5	73
Show		18166-4502	BRT1039		121	3.6	74
Show		18222-4522	BRT1047		136	6.1	77
Show		18192-4521	I 1360		193	0.5	78
Show		18162-4304	LDS 631		274	16.1	80
Show		18136-4430	I 1355		221	0.4	83
Show		18133-4410	BRT1031		274	6.9	83
Show		18233-4247	COO 224		135	3.0	84
Show		18175-4245	CPO 579		256	3.0	90
Show		18143-4309	SHY 740		345	999.9	92
Show		18278-4507	BRT1057		44	7.2	95
Show		18224-4232	TDT 820		237	2.1	96
Show		18197-4542	CHR 148		52	0.3	97
Show		18287-4318	DON 903		149	1.2	97
Show		18229-4542	BRT1048	AB	202	2.8	98
Show		18297-4438	TOI1118		132	0.2	100
Show		18240-4544	NSN 485		109	1.8	103
Show		18112-4418	HDS2566		53	18.1	106
Show		18308-4358	DON 905		53	0.5	106
Show		18115-4435	DON 884		188	6.5	106
Show		18205-4219	DON 889		260	0.8	108
Show		18260-4541	LDS 638		259	14.6	109
Show		18304-4448	UC 3597		132	75.2	110
Show		18310-4434	CPO 589		293	8.3	112
Show		18117-4500	CPO 574	AC	189	3.9	113
Show		18117-4500	CPO 574	BC	57	7.5	113
Show		18105-4411	BRT1027		141	3.8	113
Show		18312-4344	I 1369		238	4.3	114

WDS 18210-4406 : COMPONENTS

	A
B	pa=225.4° sep=0.73"

18210-4406 A

Componente originario normalizzato	AB	Name	HD 168258	Coord arcsec 2000	182057.95-440609.7	Mag	10.92
Spectral class	G1/2 (yellow)	PmRA	3.00	PmDE	4.0	Tycho2	7913-00754-1
HD	168258

Tycho2

Tycho2	7913-00754-1	Pflag	P	RAmdeg	275.24144600	DEmdeg	-44.10269538
PmRA	2.8	PmDE	3.7	E RAmdeg	40	E DEmdeg	48
E pmRA	2.5	E pmDE	2.3	EpRAm	1988.69	EpDEm	1986.31
Num	3	Q RAmdeg	1.0	Q DEmdeg	2.0	Q pmRA	1.0
Q pmDE	2.0	BTmag	11.494	E BTmag	0.074	VTmag	10.920
E VTmag	0.077	Prox	9	TYC	T	HIP
CCDM		RAdeg	275.24152750	DEdeg	-44.10265778	EpRA 1990	1.76
EpDE 1990	1.78	E RAdeg	41.4	E DEdeg	50.1	Posflg	D
Corr	0.2

18210-4406 B

Componente originario normalizzato	AB		Coord arcsec 2000	182057.90-440610.2		Mag	11.26		PmRA	3.00
PmDE	4.0		Tycho2	7913-00754-2		Calc delta mag	0.34		Calc coord	yes

Tycho2

Tycho2	7913-00754-2	Pflag	P	RAmdeg	275.24144600	DEmdeg	-44.10269538
PmRA	2.8	PmDE	3.7	E RAmdeg	40	E DEmdeg	48
E pmRA	2.5	E pmDE	2.3	EpRAm	1988.69	EpDEm	1986.31
Num	3	Q RAmdeg	1.0	Q DEmdeg	2.0	Q pmRA	1.0
Q pmDE	2.0	BTmag	11.968	E BTmag	0.114	VTmag	11.255
E VTmag	0.102	Prox	9	TYC	T	HIP
CCDM		RAdeg	275.24124639	DEdeg	-44.10280111	EpRA 1990	1.76
EpDE 1990	1.78	E RAdeg	60.7	E DEdeg	73.4	Posflg	D
Corr	0.2