17485-2237 DAW 30 (HD 161803)

17^h 48^m 30.83^s -22° 37' 24.4" P.A. 131.00 sep 1.1 mag 10.89,11.04 Sp B7/9IV:

Coord 2000	17485-2237	Discov num	DAW 30	Comp		Coord arcsec 2000	17 48 30.83 -22 37 24.4
Date first	1917	Date last	2016	Obs	6
Pa first	132	Pa last	131.1	P.A. Now (θ)	131.1°
Sep first	1.0	Sep last	1.068	Sep. Now (ρ)	1.068"
Mag pri	10.89	Mag sec	11.04	delta mag (ΔM)	0.15	Spectral class	B7/9IV: (blue-white)
Pri motion ra	+005	Sec motion ra	+005
Pri motion dec	-008	Sec motion dec	-008
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 161803		Constellation	Sagittarius		Tycho2	6828-00924-1		Gaia DR2	4068944715142914304
HD	161803		ADS	10802

WDS 17485-2237 DAW 30 (HD 161803) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Daw1918a	Ma -	Dawson, B.H.	.
Daw1918a		Pub. La Plata Obs. 4, Pt.1, 1918
Daw1918b	Ma -	Dawson, B.H. (measure by Chaves, A.J.)	.
Daw1918b		Pub. La Plata Obs. 4, Pt.1, 1918
Daw1919	orb -	Dawson, B.H.	1919AJ.....32..109D
Daw1919		AJ 32, 109, 1919
Daw1920	orb -	Dawson, B.H.	1920AJ.....32..141D
Daw1920		AJ 32, 141, 1920
Daw1920b	orb -	Dawson, B.H.	1920AJ.....32..161D
Daw1920b		AJ 32, 161, 1920
Daw1922	Ma -	Dawson, B.H.	.
Daw1922		Pub. La Plata Obs. 4, Pt.2, 1922
Daw1922b	orb -	Dawson, B.H.	1922AJ.....34...17D
Daw1922b		AJ 34, 17, 1922
Daw1924a	Ma -	Dawson, B.H.	1924AJ.....35..147D
Daw1924a		AJ 35, 147, 1924 (DAW 112 - 158; data also in Daw1937)
Daw1924b	orb -	Dawson, B.H.	1924AJ.....36...23D
Daw1924b		AJ 36, 23, 1924
Daw1926	orb -	Dawson, B.H.	1926AJ.....36..181D
Daw1926		AJ 36, 181, 1926
Daw1927A	Ma -	Dawson, B.H.	1927sdsc.book......
Daw1927A		cited in SDS (Southern Double Star Cat.), 1927
Daw1933	orb -	Dawson, B.H.	1933AJ.....43...15D
Daw1933		AJ 43, 15, 1933
Daw1937	Ma -	Dawson, B.H.	.
Daw1937		Pub. La Plata Obs. 6, 85, 1937
Daw9999	Ma -	Dawson, B.H.	...................
Daw9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17485-2237	DAW 30		1991	5	128	1.2	10.89	11.04	B7/9IV:		174830.83-223724.4
17485-2237	DAW 30		2016	6	131	1.1	10.89	11.04	B7/9IV:		174830.83-223724.4

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

WDS 17485-2237 DAW 30 (HD 161803) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17485-2237 DAW 30 (HD 161803) : MEASURES

No records found.

WDS 17485-2237 (HD 161803) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 17485-2237 (HD 161803) : ALADIN DSS IMAGE @ 17^h 48^m 30.83^s -22° 37' 24.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17485-2237 DAW 30 (HD 161803) : 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		17485-2237	DAW 30		131	1.1
Show		17480-2240	HU 1524		350	0.9	8
Show		17489-2219	BRT1508		235	4.2	20
Show		17478-2211	B 358	BC	121	4.4	28
Show		17478-2211	B 358	AB	219	24.8	28
Show		17462-2242	BRT1507		269	8.2	32
Show		17519-2250	ARA1825		355	7.1	49
Show		17488-2338	ARA2204		338	15.2	61
Show		17529-2218	ARA1826		97	7.1	65
Show		17530-2219	ARA1827		35	12.7	66
Show		17448-2319	RST3127		151	2.3	67
Show		17533-2221	HJ 4990		300	23.6	68
Show		17535-2231	ARA1828		94	7.0	71
Show		17467-2131	HDS2513	AB	15	22.0	72
Show		17433-2221	VVV 45		18	3.3	74
Show		17477-2355	VVV 49		242	2.8	79
Show		17540-2259	ARA1829		92	13.4	79
Show		17427-2222	HJ 591		12	22.5	83
Show		17432-2151	ARA1501		113	12.8	88
Show		17512-2358	SKF2526	AB	213	2.6	89
Show		17512-2358	SKF2526	AC	187	26.0	89
Show		17434-2141	OCC 401		-1	0.0	91
Show		17474-2106	ARA1502		102	12.8	93
Show		17541-2330	RST3133		331	2.5	94
Show		17418-2259	B 353		47	4.5	96
Show		17531-2125	HDS2524		331	0.1	97
Show		17497-2100	BRT1509		90	3.6	100
Show		17554-2311	RST3135		81	0.5	102
Show		17555-2203	ARA1830		122	11.9	104
Show		17518-2104	LSC 79		266	0.3	105
Show		17546-2340	RST3134		52	0.6	105
Show		17552-2149	ARA1504		163	9.4	106
Show		17425-2132	ARA1500		231	3.2	106
Show		17526-2108	J 1616		151	6.0	107
Show		17410-2304	ARA2203		345	9.2	109
Show		17503-2426	RST3129		19	2.2	112
Show		17431-2112	VVV 44		251	1.8	114
Show		17522-2051	BHA 20		241	4.0	119
Show		17402-2208	OCC1072		-1	0.0	120
Show		17415-2125	VVV 43		81	3.7	121
Show		17399-2304	OCC1071		-1	0.0	122
Show		17573-2223	BRT1510		221	5.2	123
Show		17412-2127	ARA1499		289	13.9	125
Show		17577-2305	ARA2206		157	9.4	130
Show		17536-2049	OL 102		278	3.6	130
Show		17522-2440	TOK 862		76	2.7	133
Show		17581-2249	ARA1832		15	6.9	133
Show		17576-2158	ARA1506		17	13.5	134
Show		17388-2233	RST3117		17	2.9	135
Show		17396-2341	B 352	AB	186	53.1	138
Show		17530-2441	B 2422		295	8.7	138

WDS 17485-2237 : COMPONENTS

	A
B	pa=133.4° sep=1.02"

17485-2237 A

Componente originario normalizzato	AB	Name	HD 161803	Coord arcsec 2000	174830.83-223724.4	Mag	10.89
Spectral class	B7/9IV: (blue-white)	PmRA	5.00	PmDE	-8.0	Tycho2	6828-00924-1
HD	161803	ADS	10802	DM	BD-22 4429

Tycho2

Tycho2	6828-00924-1	Pflag	P	RAmdeg	267.12846876	DEmdeg	-22.62345155
PmRA	5.3	PmDE	-7.7	E RAmdeg	50	E DEmdeg	54
E pmRA	3.5	E pmDE	3.6	EpRAm	1987.36	EpDEm	1986.87
Num	4	Q RAmdeg	1.6	Q DEmdeg	0.3	Q pmRA	1.6
Q pmDE	0.3	BTmag	11.165	E BTmag	0.081	VTmag	10.888
E VTmag	0.105	Prox	12	TYC	T	HIP
CCDM		RAdeg	267.12833583	DEdeg	-22.62335694	EpRA 1990	1.70
EpDE 1990	1.56	E RAdeg	57.1	E DEdeg	62.4	Posflg	D
Corr	-0.1

17485-2237 B

Componente originario normalizzato	AB		Coord arcsec 2000	174830.88-223725.1		Mag	11.04		PmRA	5.00
PmDE	-8.0		Tycho2	6828-00924-2		Calc delta mag	0.15		Calc coord	yes

Tycho2

Tycho2	6828-00924-2	Pflag	P	RAmdeg	267.12846876	DEmdeg	-22.62345155
PmRA	5.3	PmDE	-7.7	E RAmdeg	50	E DEmdeg	54
E pmRA	3.5	E pmDE	3.6	EpRAm	1987.36	EpDEm	1986.87
Num	4	Q RAmdeg	1.6	Q DEmdeg	0.3	Q pmRA	1.6
Q pmDE	0.3	BTmag	11.456	E BTmag	0.102	VTmag	11.035
E VTmag	0.119	Prox	12	TYC		HIP
CCDM		RAdeg	267.12860806	DEdeg	-22.62355528	EpRA 1990	1.70
EpDE 1990	1.55	E RAdeg	68.9	E DEdeg	75.4	Posflg	D
Corr	-0.1