18436-2013 DON 920 (HD 172933)

18^h 43^m 38.83^s -20° 13' 01.0" P.A. 336.00 sep 1.4 mag 9.84,12.40 Sp F2V

Coord 2000	18436-2013	Discov num	DON 920	Comp		Coord arcsec 2000	18 43 38.83 -20 13 01.0
Date first	1930	Date last	2016	Obs	4
Pa first	334	Pa last	335.5	P.A. Now (θ)	335.5°
Sep first	1.0	Sep last	1.406	Sep. Now (ρ)	1.406"
Mag pri	9.84	Mag sec	12.40	delta mag (ΔM)	2.56	Spectral class	F2V (yellow-white)
Pri motion ra	+005	Sec motion ra
Pri motion dec	-042	Sec motion dec
Notes	S (Parallax indidates non-physical)

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 172933		Constellation	Sagittarius		SAO	187195		Tycho2	6288-01720-1
Gaia DR2	4080197701199013632		HD	172933

WDS 18436-2013 DON 920 (HD 172933) : 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
18436-2013	DON 920		1941	2	337	1.2	9.84	12.40	F2V		184338.83-201301.0
18436-2013	DON 920		2015	3	335	1.4	9.84	12.40	F2V	S	184338.83-201301.0
18436-2013	DON 920		2016	4	336	1.4	9.84	12.40	F2V	S	184338.83-201301.0

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

WDS 18436-2013 DON 920 (HD 172933) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18436-2013 DON 920 (HD 172933) : MEASURES

No records found.

WDS 18436-2013 (HD 172933) : VIRTUAL EYEPIECE

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WDS 18436-2013 (HD 172933) : ALADIN DSS IMAGE @ 18^h 43^m 38.83^s -20° 13' 01.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18436-2013 DON 920 (HD 172933) : 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		18436-2013	DON 920		336	1.4
Show		18441-1954	ARA1160		184	8.4	20
Show		18439-1954	STN 44		316	1.6	20
Show		18425-1943	ARA 761		242	6.9	34
Show		18453-2039	EVS 37	AB	128	3.1	35
Show		18453-2039	EVS 37	AC	67	10.8	35
Show		18453-2039	EVS 37	AD	156	10.6	35
Show		18453-2039	EVS 37	AE	271	11.5	35
Show		18453-2039	EVS 37	AF	330	18.2	35
Show		18453-2039	GAA 14	Aa,Ab	349	0.0	35
Show		18453-2039	KRV 18	AG	250	29.9	35
Show		18453-2039	KRV 18	AH	304	34.9	35
Show		18431-2051	ARA1159		84	11.7	39
Show		18406-2016	ARA1157		356	9.5	43
Show		18407-1957	ARA1158		68	6.6	44
Show		18406-2034	OCC1080		-1	0.0	49
Show		18462-2046	I 1030		161	5.9	50
Show		18405-2040	OCC1079		-1	0.0	53
Show		18465-1940	BRT1543		258	3.3	53
Show		18412-1928	OCC9183		-1	0.2	57
Show		18429-1917	OCC9184		-1	0.1	57
Show		18416-2108	KPP 422		299	4.7	63
Show		18391-2025	ARA1155		238	11.6	66
Show		18393-2038	ARA1156		16	15.8	67
Show		18398-2052	OCC1078		-1	0.7	67
Show		18452-2117	ARA1553		273	10.1	67
Show		18483-2033	DON 924		53	1.2	70
Show		18418-1909	J 2221	AB	254	7.5	70
Show		18418-1909	J 2221	AC	346	17.9	70
Show		18386-2020	DON 917		51	1.1	72
Show		18406-2115	ARA1552		287	12.6	75
Show		18483-1935	B 2461		197	6.7	76
Show		18479-1936	J 1657		28	3.6	76
Show		18395-2101	RST5121	AB	21	4.2	76
Show		18395-2101	HJ 2833	AC	314	21.8	76
Show		18474-2108	B 1889		218	0.8	76
Show		18439-2130	KPP4118		341	3.9	78
Show		18470-1912	HJ 2837		89	11.2	78
Show		18388-1928	BRT1541		34	4.2	83
Show		18389-2103	WSI 90	AB	138	0.0	84
Show		18389-2103	TNN 11	AC	340	5.0	84
Show		18389-2103	TNN 11	AD	30	6.4	84
Show		18497-2019	SEE 362			13.8	85
Show		18387-2114	ARA1551		137	6.1	93
Show		18385-2110	B 1888		302	4.8	93
Show		18372-2039	DON 914		174	0.4	95
Show		18407-2139	RST5122		189	2.1	96
Show		18378-2103	ARA1549		188	14.1	96
Show		18393-1859	ARA 760		60	5.6	98
Show		18500-1933	KPP4124		15	1.5	99
Show		18367-2019	HO 567		165	1.3	99

WDS 18436-2013 : COMPONENTS

	A
B	pa=336.8° sep=1.39"

18436-2013 A

Componente originario normalizzato	AB	Name	HD 172933	Coord arcsec 2000	184338.83-201301.0	Mag	9.84
Spectral class	F2V (yellow-white)	PmRA	5.00	PmDE	-42.0	SAO	187195
Tycho2	6288-01720-1	HD	172933	DM	BD-20 5243

Tycho2

Tycho2	6288-01720-1	Pflag		RAmdeg	280.91182517	DEmdeg	-20.21696590
PmRA	7.7	PmDE	-40.7	E RAmdeg	17	E DEmdeg	27
E pmRA	1.7	E pmDE	2.0	EpRAm	1987.74	EpDEm	1986.81
Num	7	Q RAmdeg	1.8	Q DEmdeg	1.8	Q pmRA	1.8
Q pmDE	1.8	BTmag	10.430	E BTmag	0.041	VTmag	9.835
E VTmag	0.035	Prox	999	TYC	T	HIP
CCDM		RAdeg	280.91180833	DEdeg	-20.21688111	EpRA 1990	1.86
EpDE 1990	1.74	E RAdeg	18.5	E DEdeg	29.8	Posflg
Corr	-0.1

SAO

SAO	187195	DelFlag		RA1950		PmRA1950	0.0013
DE1950		PmDE1950	-0.047	Vmag	9.1	SpType	F5
Double code		Source	23	CatNum	7861	DM	BD-20 5243
DMcomp		BDsup		HD	172933	M HD	0
GC		RA1950rad	4.8898914	DE1950rad	-0.3537326	PmRA2000	0.0014
PmDE2000	-0.046

CCDM

Ccdm	18436-2013	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.83	DDEs	-0.9
R dRAs	41	Year		Theta		Rho
Obs	2	Vmag	9.4	Sp	F5	PmNote	*
PmRA	18	PmDE	-47	Dm number	-20 5243	Cat1	BD
Name2	187195	Cat2	SAO	HD	172933	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18377S2019A
HIC

18436-2013 B

Componente originario normalizzato	AB		Coord arcsec 2000	184338.79-201259.7		Mag	12.4		Calc delta mag	2.56
Calc coord	yes

CCDM

Ccdm	18436-2013	RComp		Comp	B	Note1
Note2		Discov num	DON 920	DRAs		DDEs
R dRAs		Year	1930	Theta	335	Rho	1.1
Obs	2	Vmag	12.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18377S2019B
HIC