18115-4435 DON 884

18^h 11^m 27.90^s -44° 35' 09.9" P.A. 188.00 sep 6.5 mag 8.13,14.60 Sp B5II dist. 305.81 pc (997.55 l.y.)

Coord 2000	18115-4435	Discov num	DON 884	Comp		Coord arcsec 2000	18 11 27.90 -44 35 09.9
Date first	1930	Date last	1999	Obs	3
Pa first	192	Pa last	187.5	P.A. Now (θ)	187.5°
Sep first	6.1	Sep last	6.54	Sep. Now (ρ)	6.54"
Mag pri	8.13	Mag sec	14.60	delta mag (ΔM)	6.47	Spectral class	B5II (blue-white)
Pri motion ra	-007	Sec motion ra
Pri motion dec	-007	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Corona Austrina	SAO	228781	HIP	89135	Tycho2	7912-00507-1
Gaia DR2	6720755169697130880	HD	166138	CD	CD-4412396	CP	CP-44 8989
Distance	305.81	Distance ly	997.55

WDS 18115-4435 DON 884 : 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
18115-4435	DON 884		1999	3	188	6.5	8.20	14.60	B5II	D	181127.90-443509.9

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WDS 18115-4435 DON 884 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18115-4435 DON 884 : MEASURES

No records found.

WDS 18115-4435 : VIRTUAL EYEPIECE

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WDS 18115-4435 : ALADIN DSS IMAGE @ 18^h 11^m 27.90^s -44° 35' 09.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18115-4435 DON 884 : 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		18115-4435	DON 884		188	6.5	1
Show		18112-4418	HDS2566		53	18.1	18
Show		18136-4430	I 1355		221	0.4	24
Show		18094-4445	BRT1024		233	5.7	25
Show		18117-4500	CPO 574	AC	189	3.9	25
Show		18117-4500	CPO 574	BC	57	7.5	26
Show		18105-4411	BRT1027		141	3.8	26
Show		18133-4410	BRT1031		274	6.9	32
Show		18086-4423	BRT1023		225	7.4	33
Show		18081-4428	BRT1021		138	3.1	37
Show		18096-4400	KPP4087		355	1.1	41
Show		18076-4431	BRT1019		3	4.2	42
Show		18074-4409	B 2432		245	12.5	51
Show		18094-4522	SKF1083		206	2.6	52
Show		18124-4531	CPO 575		30	4.1	57
Show		18124-4532	CPO 576		208	6.0	58
Show		18166-4502	BRT1039		121	3.6	60
Show		18174-4434	SKF1021		11	46.2	64
Show		18176-4433	SKF1146		152	40.8	66
Show		18161-4353	CPO9261		25	5.2	66
Show		18161-4351	DAM 50		49	3.8	67
Show		18127-4542	B 2433		10	15.6	69
Show		18050-4445	FIN 9		193	1.4	70
Show		18183-4444	BRT1041		175	3.5	74
Show		18085-4546	HJ 5015		258	4.3	78
Show		18064-4533	TDT 686		258	0.7	79
Show		18112-4557	HDO 286		230	16.4	83
Show		18171-4336	HDS2583		10	0.1	85
Show		18120-4600	ALD 91		255	1.7	85
Show		18068-4325	HJ 5014			1.8	86
Show		18195-4428	CPO 580		51	3.3	87
Show		18047-4522	BRT1016		126	4.6	87
Show		18143-4309	SHY 740		345	999.9	92
Show		18046-4534	B 2429		339	12.8	94
Show		18161-4316	I 1357		36	6.5	94
Show		18199-4506	CPO 581		185	3.5	95
Show		18192-4521	I 1360		193	0.5	95
Show		18202-4454	BRT1044		143	3.9	96
Show		18199-4514	B 2442		250	11.7	99
Show		18162-4601	HJ 5034		100	2.4	100
Show		18200-4517	KPP1486		266	11.2	100
Show		18200-4354	HDS2591		27	0.3	101
Show		18017-4442	BRT1012		201	5.7	104
Show		18162-4304	LDS 631		274	16.1	104
Show		18210-4407	TDT 813		145	2.1	106
Show		18210-4406	DON 890		235	0.9	106
Show		18213-4416	BRT1046		311	5.1	107
Show		18197-4542	CHR 148		52	0.3	110
Show		18080-4619	TDT 699		246	1.1	111
Show		18037-4552	SKF1421		92	16.4	113
Show		18218-4413	I 1363		297	0.8	113

WDS 18115-4435 : COMPONENTS

	A
B	pa=185.4° sep=6.51"

18115-4435 A

Componente originario normalizzato	AB	Coord arcsec 2000	181127.90-443509.9	Mag	8.13	Spectral class	B5II (blue-white)
PmRA	-7.00	PmDE	-7.0	SAO	228781	HIP	89135
Tycho2	7912-00507-1	HD	166138	CD	CD-4412396	CP	CP-44 8989

Tycho2

Tycho2	7912-00507-1	Pflag		RAmdeg	272.86623262	DEmdeg	-44.58607797
PmRA	0.5	PmDE	-1.4	E RAmdeg	4	E DEmdeg	5
E pmRA	1.1	E pmDE	1.1	EpRAm	1991.41	EpDEm	1990.87
Num	8	Q RAmdeg	1.2	Q DEmdeg	0.8	Q pmRA	1.4
Q pmDE	0.8	BTmag	8.038	E BTmag	0.015	VTmag	8.133
E VTmag	0.011	Prox	717	TYC	T	HIP	89135
CCDM		RAdeg	272.86623083	DEdeg	-44.58607444	EpRA 1990	1.72
EpDE 1990	1.35	E RAdeg	3.9	E DEdeg	4.7	Posflg
Corr	0.0

SAO

SAO	228781	DelFlag		RA1950		PmRA1950	0.0007
DE1950		PmDE1950	-0.016	Vmag	8.5	SpType	B8
Double code		Source	48	CatNum	17111	DM	CP-44 8989
DMcomp		BDsup		HD	166138	M HD	0
GC		RA1950rad	4.74644455	DE1950rad	-0.7783799	PmRA2000	0.0007
PmDE2000	-0.017

Hipparcos

Catalog	H	HIP	89135	Proxy		RAhms	18 11 27.90
DEdms	-44 35 09.9	Vmag	8.15	VarFlag		R Vmag	H
RAdeg	272.866	DEdeg	-44.5861	AstroRef		Plx	2.76
CCDM	18115-4435	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	166138	BD
CD	CD-4412396	CP	CP-44 8989	Dm number	-4412396	VIred	-0.1
SpType	B5II	R SpType		Coord arcsec 2000	181127.90-443509.9

Hipparcos 2

HIP	89135	Sn	5	So	0	Nc	1
RArad	4.7624141641	DErad	-0.7781738092	Plx	3.27	PmRA	1.39
PmDE	-2.32	E RArad	0.75	E DErad	0.48	E Plx	0.8
E pmRA	0.93	E pmDE	0.52	Hpmag	8.1183	E Hpmag	0.0011
SHp	0.013	VA	0	BV	-0.096	E BV	0.009
VI	-0.08

CCDM

Ccdm	18115-4435	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.05	DDEs	-11.1
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.2	Sp	B8	PmNote	*
PmRA	7	PmDE	-16	Dm number	-4412396	Cat1	CD
Name2	228781	Cat2	SAO	HD	166138	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18041S4436A
HIC	89135

18115-4435 B

Componente originario normalizzato	AB		Coord arcsec 2000	181127.84-443516.4		Mag	14.6		Calc delta mag	6.47
Calc coord	yes

CCDM

Ccdm	18115-4435	RComp		Comp	B	Note1
Note2		Discov num	DON 884	DRAs		DDEs
R dRAs		Year	1948	Theta	188	Rho	6.2
Obs	2	Vmag	14.6	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18041S4436B
HIC	89135