18015-1014 BU 47 (HD 164434)

18^h 01^m 30.85^s -10° 14' 00.9" P.A. 76.00 sep 0.6 mag 8.74,9.59 Sp G0

Coord 2000	18015-1014	Discov num	BU 47	Comp		Coord arcsec 2000	18 01 30.85 -10 14 00.9
Date first	1871	Date last	2014	Obs	27
Pa first	270	Pa last	76.3	P.A. Now (θ)	76.3°
Sep first	1.3	Sep last	0.642	Sep. Now (ρ)	0.642"
Mag pri	8.74	Mag sec	9.59	delta mag (ΔM)	0.85	Spectral class	G0 (yellow)
Pri motion ra	+046	Sec motion ra	+046
Pri motion dec	-036	Sec motion dec	-036
Notes	O (Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 164434		Constellation	Serpens		Tycho2	5679-00367-1		Gaia DR2	4152221721459524736
HD	164434		ADS	10977

ORBITAL ELEMENTS

Period (P)	403.9y	Periastron (T)	2013y	Semi-major axis (a)	1.209a
Eccentricity (e)	0.478	Inclination (i)	54°	Longitude of periastron (ω)	339.8°
Node (Ω)	85.3°	Notes		Reference	Hrt2013c
Equinox	2000	Last observation	2009	Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	44.2	0.499
2001	46.9	0.507
2002	49.5	0.515
2003	52.0	0.523
2004	54.4	0.532
2005	56.7	0.541
2006	59.0	0.549
2007	61.2	0.558
2008	63.3	0.567
2009	65.4	0.575
2010	67.4	0.583
2011	69.3	0.591
2012	71.2	0.599
2013	73.1	0.606
2014	74.9	0.613
2015	76.7	0.619
2016	78.4	0.625
2017	80.1	0.630
2018	81.8	0.635
2019	83.5	0.640
2020	85.1	0.643
2021	86.7	0.647
2022	88.3	0.650
2023	89.9	0.652
2024	91.5	0.654
2025	93.0	0.655
2026	94.6	0.656
2027	96.2	0.657
2028	97.7	0.657
2029	99.3	0.656
2030	100.9	0.656

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 18015-1014 BU 47 (HD 164434) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Hrt2013c	orb -	Hartkopf, W.I. & Harshaw, R.	2013IAUDS.181Q...1H
Hrt2013c		Inf. Circ. 181, 1, 2013

DISCOVERER

idgroup	discov	author
1	BU	Burnham, S.W. (BU 1 - 81)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18015-1014	BU 47		1996	24	22	0.7	8.74	9.59	G0		180130.85-101400.9
18015-1014	BU 47		2009	25	71	0.6	8.74	9.59	G0		180130.85-101400.9
18015-1014	BU 47		2014	26	76	0.6	8.74	9.59	G0	O	180130.85-101400.9

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

WDS 18015-1014 BU 47 (HD 164434) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18015-1014 BU 47 (HD 164434) : MEASURES

No records found.

WDS 18015-1014 (HD 164434) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 18015-1014 (HD 164434) : ALADIN DSS IMAGE @ 18^h 01^m 30.85^s -10° 14' 00.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18015-1014 BU 47 (HD 164434) : 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		18015-1014	BU 47		76	0.6
Show		18009-1012	HU 236		156	0.2	10
Show		18010-1020	GWP2754		219	28.3	10
Show		18004-0929	RST3990		93	2.4	48
Show		17589-1046	KPP1587		359	12.1	50
Show		17589-0924	OSO 90	AB	124	20.9	65
Show		17589-0924	OSO 90	AC	207	22.6	65
Show		18034-1118	BRT2743		337	3.8	71
Show		18000-1133	HU 753		129	5.5	83
Show		17587-1152	HDS2535		167	0.1	107
Show		18086-0948	HDS2557		252	0.6	109
Show		17564-0845	RST3988		36	0.8	117
Show		18053-0823	J 1645		4	5.5	117
Show		17596-0820	GWP2751		127	23.6	118
Show		18099-1027	TSN 186		38	0.8	124
Show		18031-0811	STF2262	AB	291	1.4	126
Show		18031-0811	STF2262	AC	125	100.8	126
Show		17541-1120	HJ 4995		156	27.9	128
Show		17549-1138	HLD 139	AB	142	3.1	129
Show		17549-1138	HLD 139	AC	97	65.8	129
Show		18061-0819	HDS2551		91	0.1	134
Show		17557-1156	HJ 4997		85	11.1	134
Show		18060-0807	A 2595		45	2.9	144
Show		17531-0852	HDS2523		253	0.3	150
Show		18092-0817	RST3998	AB	161	0.4	164
Show		18092-0817	B 2856	AB,C	123	11.9	164
Show		18064-1250	RST3995		137	0.8	172
Show		18103-1211	KPP4088		200	1.9	175
Show		17540-1229	KPP2417		145	21.0	175
Show		18025-0719	RST3992		236	0.6	176
Show		17586-1306	HU 190		320	0.2	177
Show		18007-0717	LDS 621		298	7.2	178
Show		17550-0744	LLO 14		293	5.9	179
Show		18132-1114	TDT 741		99	0.6	183
Show		18096-0755	NSN 142		44	25.1	184
Show		18099-0755	HDS2561		16	0.9	187
Show		17530-0755	STF3128	AB	50	1.3	188
Show		17530-0755	STF3128	AC	86	97.1	188
Show		17527-0757	STF2234		198	16.9	189
Show		18101-1235	GWP2765	AB	281	344.7	190
Show		17491-1120	RST3984		56	3.1	195
Show		18146-1113	HLD 142		253	1.3	203
Show		17593-0651	STF2250	AB	344	7.8	206
Show		17593-0651	SIN 106	AC	92	45.0	206
Show		17565-1327	RST3987		137	1.2	207
Show		18081-0707	RST3997		82	1.3	212
Show		17524-1300	LDS5857		63	8.8	213
Show		17598-1346	HU 191		120	4.1	214
Show		18160-1006	HU 58		127	0.7	214
Show		18154-0850	BRT 476		135	4.0	221
Show		18161-1111	HDS2579		78	7.8	223

WDS 18015-1014 : COMPONENTS

	A
B	pa=76.1° sep=0.63"

18015-1014 A

Componente originario normalizzato	AB	Name	HD 164434	Coord arcsec 2000	180130.85-101400.9	Mag	8.74
Spectral class	G0 (yellow)	PmRA	46.00	PmDE	-36.0	Tycho2	5679-00367-1
HD	164434	ADS	10977	DM	BD-10 4583

Tycho2

Tycho2	5679-00367-1	Pflag		RAmdeg	270.37853981	DEmdeg	-10.23356656
PmRA	45.8	PmDE	-36.2	E RAmdeg	7	E DEmdeg	9
E pmRA	1.2	E pmDE	1.1	EpRAm	1990.82	EpDEm	1990.07
Num	6	Q RAmdeg	0.7	Q DEmdeg	0.7	Q pmRA	0.7
Q pmDE	0.7	BTmag	9.124	E BTmag	0.019	VTmag	8.394
E VTmag	0.014	Prox	999	TYC	T	HIP
CCDM		RAdeg	270.37843333	DEdeg	-10.23348333	EpRA 1990	1.75
EpDE 1990	1.72	E RAdeg	7.1	E DEdeg	8.8	Posflg
Corr	-0.1

18015-1014 B

Componente originario normalizzato	AB		Coord arcsec 2000	180130.89-101400.7		Mag	9.59		PmRA	46.00
PmDE	-36.0		Calc delta mag	0.85		Calc coord	yes