18205-1951 DON 892 (HD 168450)

18^h 20^m 29.26^s -19° 50' 41.1" P.A. 298.00 sep 1.3 mag 8.58,11.30 Sp G1/2V

Coord 2000	18205-1951	Discov num	DON 892	Comp		Coord arcsec 2000	18 20 29.26 -19 50 41.1
Date first	1929	Date last	2015	Obs	4
Pa first	281	Pa last	298.2	P.A. Now (θ)	298.2°
Sep first	1.1	Sep last	1.27	Sep. Now (ρ)	1.27"
Mag pri	8.58	Mag sec	11.30	delta mag (ΔM)	2.72	Spectral class	G1/2V (yellow)
Pri motion ra	+043	Sec motion ra
Pri motion dec	-054	Sec motion dec
Notes	S (Parallax indidates non-physical)

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 168450		Constellation	Sagittarius		SAO	161355		Tycho2	6273-00531-1
Gaia DR2	4094486335816279680		HD	168450		GC	25019

WDS 18205-1951 DON 892 (HD 168450) : 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
18205-1951	DON 892		1941	3	288	1.2	8.58	11.30	G1/2V		182029.26-195041.1
18205-1951	DON 892		2015	4	298	1.3	8.58	11.30	G1/2V	S	182029.26-195041.1

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

WDS 18205-1951 DON 892 (HD 168450) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18205-1951 DON 892 (HD 168450) : MEASURES

No records found.

WDS 18205-1951 (HD 168450) : VIRTUAL EYEPIECE

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WDS 18205-1951 (HD 168450) : ALADIN DSS IMAGE @ 18^h 20^m 29.26^s -19° 50' 41.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18205-1951 DON 892 (HD 168450) : 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		18205-1951	DON 892		298	1.3
Show		18209-1956	RST3177		326	1.3	8
Show		18210-1939	BU 48	CD	57	16.4	14
Show		18210-1939	BU 48	AB	349	2.6	14
Show		18210-1939	BU 48	AC	283	78.6	14
Show		18209-2004	ARA1148	AB	310	11.1	15
Show		18196-1944	WRH 30		273	0.3	15
Show		18223-2018	BHA 27		236	7.0	39
Show		18231-2009	DON 897		129	1.6	41
Show		18177-1940	BU 246	AB	116	0.5	42
Show		18177-1940	WSI 89	Ba,Bb	321	0.1	42
Show		18217-1909	BRT1531		215	4.9	45
Show		18171-1952	HJ 2827		253	19.9	48
Show		18237-1936	ARA 746		280	12.9	49
Show		18186-1906	OCC9181		-1	0.2	52
Show		18238-1930	LEO 16		84	1.2	52
Show		18170-1933	B 2862		296	7.4	53
Show		18228-1910	OCC 474		-1	0.2	53
Show		18174-1920	B 2863		310	5.7	54
Show		18242-1935	BU 49	AB	45	8.2	55
Show		18242-1935	BU 49	AC	304	22.4	55
Show		18242-1935	BU 49	AD	149	23.4	55
Show		18246-1944	OCC 459		-1	2.5	59
Show		18173-2029	BHA 26		352	5.5	60
Show		18184-1859	OCC9180		-1	0.1	60
Show		18214-1852	EVS 35	AB	204	10.6	61
Show		18214-1852	KRV 48	AC	157	71.4	61
Show		18214-1852	KRV 48	AD	98	95.0	61
Show		18223-1856	J 1740	AB	148	5.4	61
Show		18223-1856	J 1740	AC	178	8.7	61
Show		18232-1903	I 1365		150	1.3	62
Show		18163-2008	ARA1143		18	10.9	62
Show		18178-2039	ARA1146		351	11.0	62
Show		18167-2022	SKF 99		141	3.0	63
Show		18247-2012	OCC 409		-1	0.0	63
Show		18216-2052	BRT1530		337	5.5	64
Show		18168-2027	ARA1144		336	9.7	65
Show		18244-1917	J 1630		222	5.3	66
Show		18203-2055	BRT1529		281	4.2	66
Show		18157-1950	B 1884		85	0.2	68
Show		18158-2001	CLL 12		199	22.9	68
Show		18241-1905	ARA 747		291	6.2	68
Show		18162-1921	B 2439		113	2.5	68
Show		18166-2033	MCA 51		321	0.1	70
Show		18163-2027	SKF1039		336	3.7	70
Show		18163-1913	B 2440		291	0.5	71
Show		18156-1929	RST5108		76	0.3	73
Show		18170-1858	MZA 23	AB	227	17.5	73
Show		18170-1858	SNA 85	Aa,Ab	265	0.0	73
Show		18170-1858	SNA 85	AC	88	5.1	73
Show		18170-1858	SNA 85	AD	247	5.8	73

WDS 18205-1951 : COMPONENTS

	A
B	pa=299.7° sep=1.21"

18205-1951 A

Componente originario normalizzato	AB	Name	HD 168450	Coord arcsec 2000	182029.26-195041.1	Mag	8.58
Spectral class	G1/2V (yellow)	PmRA	43.00	PmDE	-54.0	SAO	161355
Tycho2	6273-00531-1	HD	168450	GC	25019	DM	BD-19 4965

Tycho2

Tycho2	6273-00531-1	Pflag		RAmdeg	275.12191489	DEmdeg	-19.84477070
PmRA	48.3	PmDE	-59.9	E RAmdeg	7	E DEmdeg	10
E pmRA	1.4	E pmDE	1.3	EpRAm	1991.00	EpDEm	1990.19
Num	9	Q RAmdeg	0.7	Q DEmdeg	1.2	Q pmRA	0.7
Q pmDE	1.2	BTmag	9.199	E BTmag	0.020	VTmag	8.579
E VTmag	0.015	Prox	995	TYC	T	HIP
CCDM		RAdeg	275.12179750	DEdeg	-19.84463361	EpRA 1990	1.76
EpDE 1990	1.73	E RAdeg	7.4	E DEdeg	10.1	Posflg
Corr	0.0

SAO

SAO	161355	DelFlag		RA1950		PmRA1950	0.0006
DE1950		PmDE1950	-0.041	Vmag	8.6	SpType	G0
Double code		Source	70	CatNum	25019	DM	BD-19 4965
DMcomp		BDsup		HD	168450	M HD	0
GC	25019	RA1950rad	4.78883244	DE1950rad	-0.34674194	PmRA2000	0.0007
PmDE2000	-0.04

CCDM

Ccdm	18205-1951	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.96	DDEs	20.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.7	Sp	G0	PmNote	*
PmRA	10	PmDE	-41	Dm number	-19 4965	Cat1	BD
Name2	161355	Cat2	SAO	HD	168450	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18146S1953A
HIC

18205-1951 B

Componente originario normalizzato	AB		Coord arcsec 2000	182029.19-195040.5		Mag	11.3		Calc delta mag	2.72
Calc coord	yes

CCDM

Ccdm	18205-1951	RComp		Comp	B	Note1
Note2		Discov num	DON 892	DRAs		DDEs
R dRAs		Year	1941	Theta	288	Rho	1.1
Obs	3	Vmag	11.4	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18146S1953B
HIC