17498-4744 RST 950 (HD 161780)

17^h 49^m 50.65^s -47° 43' 34.3" P.A. 154.00 sep 1.6 mag 10.97,11.33 Sp A2/3V

Coord 2000	17498-4744	Discov num	RST 950	Comp		Coord arcsec 2000	17 49 50.65 -47 43 34.3
Date first	1930	Date last	2016	Obs	4
Pa first	154	Pa last	154.3	P.A. Now (θ)	154.3°
Sep first	1.5	Sep last	1.617	Sep. Now (ρ)	1.617"
Mag pri	10.97	Mag sec	11.33	delta mag (ΔM)	0.36	Spectral class	A2/3V (white)
Pri motion ra	+001	Sec motion ra	+001
Pri motion dec	-003	Sec motion dec	-003
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 161780		Constellation	Ara		Tycho2	8348-01805-2		Gaia DR2	5947965831614890240
HD	161780

WDS 17498-4744 RST 950 (HD 161780) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Rst1933	T -	Rossiter, R.A.	1933MmRAS..65...27R
Rst1933		MemRAS 65, 27, 1933
Rst1937	Ma -	Rossiter, R.A.	1937MmRAS..65...51R
Rst1937		MemRAS 65, 51, 1937
Rst1943	Ma -	Rossiter, R.A.	1943POMic...8..133R
Rst1943		Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944	-	Rossiter, R.A.	1944POMic...9....1R
Rst1944		Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947	Ma -	Rossiter, R.A.	1947POMic...9....7R
Rst1947		Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955	Ma j	Rossiter, R.A.	1955POMic..11....1R
Rst1955	+P+	Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964	Ma -	Rossiter, R.A.	1964POMic...9...73R
Rst1964		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
17498-4744	RST 950		1991	3	155	1.6	10.97	11.33	A2/3V		174950.65-474334.3
17498-4744	RST 950		2016	4	154	1.6	10.97	11.33	A2/3V		174950.65-474334.3

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WDS 17498-4744 RST 950 (HD 161780) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17498-4744 RST 950 (HD 161780) : MEASURES

No records found.

WDS 17498-4744 (HD 161780) : VIRTUAL EYEPIECE

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WDS 17498-4744 (HD 161780) : ALADIN DSS IMAGE @ 17^h 49^m 50.65^s -47° 43' 34.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17498-4744 RST 950 (HD 161780) : 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		17498-4744	RST 950		154	1.6
Show		17509-4753	TDT 532		134	0.4	15
Show		17502-4801	B 1869		29	1.1	18
Show		17518-4732	WFC 199		27	11.9	23
Show		17520-4807	TDT 544		277	0.5	33
Show		17467-4738	B 2843	AB	336	92.9	33
Show		17516-4811	I 617		263	2.0	34
Show		17487-4815	RSS 462		163	20.0	34
Show		17520-4809	TDT 545		33	0.5	34
Show		17467-4738	B 2843	BC	157	1.8	34
Show		17505-4817	HJ 4982		57	40.6	35
Show		17467-4801	B 1866		109	0.6	37
Show		17458-4749	RST 947		315	0.3	41
Show		17505-4655	CPO 556		66	5.3	50
Show		17457-4715	B 2414		181	0.5	51
Show		17452-4805	TDT 487		22	0.7	52
Show		17545-4814	TDT 565		280	0.4	56
Show		17449-4809	I 1602		305	0.2	56
Show		17541-4821	B 1870		187	0.1	57
Show		17445-4726	RSS 459		131	17.2	57
Show		17451-4816	CPO 551		274	4.9	58
Show		17555-4759	B 1873		342	0.2	60
Show		17439-4735	CPO 550		189	4.7	60
Show		17539-4658	RST 953		62	3.3	62
Show		17532-4650	SKF 458			11.3	64
Show		17457-4655	I 248	AB	127	1.9	65
Show		17457-4655	I 248	AC	7	42.3	65
Show		17454-4840	SKF1056		184	17.9	72
Show		17482-4630	RST 949		141	0.3	76
Show		17426-4653	I 1334		311	1.9	90
Show		17589-4732	CPO 569		339	4.5	93
Show		17422-4839	HJ 4970	AB	68	8.0	94
Show		17422-4839	HJ 4970	AC	235	20.5	94
Show		17422-4839	ANT 3	AD	270	52.0	94
Show		17422-4839	ANT 3	AE	151	12.4	94
Show		17422-4838	TDT 468		259	0.4	95
Show		17558-4629	TDT 578		312	0.5	97
Show		17560-4858	KPP1457		28	11.0	97
Show		17445-4904	RST 945		47	2.6	97
Show		17594-4746	I 110		124	1.5	97
Show		17512-4921	RST 951		119	2.5	98
Show		17418-4651	CPO9247		279	4.4	98
Show		17589-4709	TDT 609		316	3.5	98
Show		17422-4641	CPO 547	AB	267	5.1	100
Show		17400-4745	BRT 986		142	5.8	100
Show		17457-4915	RST 946		321	1.9	101
Show		17461-4920	BRT 991		27	5.0	104
Show		18003-4753	BRT1008		318	4.2	106
Show		17414-4846	CPO 546		165	2.8	106
Show		17575-4633	SKF1057		297	30.7	106
Show		17506-4930	B 2416		97	8.4	107

WDS 17498-4744 : COMPONENTS

	A
B	pa=162.1° sep=1.53"

17498-4744 A

Componente originario normalizzato	AB	Name	HD 161780	Coord arcsec 2000	174950.65-474334.3	Mag	10.97
Spectral class	A2/3V (white)	PmRA	1.00	PmDE	-3.0	Tycho2	8348-01805-2
HD	161780	DM	CD-4711835

Tycho2

Tycho2	8348-01805-2	Pflag	P	RAmdeg	267.46102456	DEmdeg	-47.72618597
PmRA	0.6	PmDE	-2.7	E RAmdeg	59	E DEmdeg	61
E pmRA	2.6	E pmDE	2.4	EpRAm	1985.08	EpDEm	1982.90
Num	3	Q RAmdeg	0.7	Q DEmdeg	0.4	Q pmRA	0.7
Q pmDE	0.4	BTmag	11.255	E BTmag	0.090	VTmag	10.973
E VTmag	0.107	Prox	16	TYC		HIP
CCDM		RAdeg	267.46087417	DEdeg	-47.72596694	EpRA 1990	1.59
EpDE 1990	1.49	E RAdeg	60.8	E DEdeg	64.2	Posflg	D
Corr	0.0

17498-4744 B

Componente originario normalizzato	AB		Coord arcsec 2000	174950.70-474335.8		Mag	11.33		PmRA	1.00
PmDE	-3.0		Tycho2	8348-01805-1		Calc delta mag	0.36		Calc coord	yes

Tycho2

Tycho2	8348-01805-1	Pflag	P	RAmdeg	267.46102456	DEmdeg	-47.72618597
PmRA	0.6	PmDE	-2.7	E RAmdeg	59	E DEmdeg	61
E pmRA	2.6	E pmDE	2.4	EpRAm	1985.08	EpDEm	1982.90
Num	3	Q RAmdeg	0.7	Q DEmdeg	0.4	Q pmRA	0.7
Q pmDE	0.4	BTmag	11.232	E BTmag	0.087	VTmag	11.325
E VTmag	0.141	Prox	16	TYC	T	HIP
CCDM		RAdeg	267.46116278	DEdeg	-47.72638139	EpRA 1990	1.59
EpDE 1990	1.50	E RAdeg	63.9	E DEdeg	67.1	Posflg	D
Corr	0.0