18039-2422 SNA 78 (9 Sgr)

18^h 03^m 52.44^s -24° 21' 38.6" P.A. 69.00 sep 0.0 mag 6.30,6.80 Sp O4V dist. 2040.82 pc (6657.15 l.y.)

Coord 2000	18039-2422	Discov num	SNA 78	Comp		Coord arcsec 2000	18 03 52.44 -24 21 38.6
Date first	2009	Date last	2017	Obs	24
Pa first	70	Pa last	69	P.A. Now (θ)	69°
Sep first	0.0	Sep last	0.022	Sep. Now (ρ)	0.022"
Mag pri	6.30	Mag sec	6.80	delta mag (ΔM)	0.5	Spectral class	O4V (blue)
Pri motion ra	+000	Sec motion ra
Pri motion dec	-002	Sec motion dec
Notes	N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	9 Sgr	Constellation	Sagittarius	SAO	186204	HIP	88469
Tycho2	6842-01702-1	Gaia DR2	4066022591147527552	HD	164794	HR	6736
GC	24574	CD	CD-2413814	CP	CP-24 6144	Flamsteed	9 Sagittarii
Flamsteed name	9 Sgr	Distance	2040.82	Distance ly	6657.15

ORBITAL ELEMENTS

Period (P)	3310.4d (9.06y)	± 7	Periastron (T)	46613d (1986.498y)	± 21	Semi-major axis (a)	14.78m	± 0.13
Eccentricity (e)	0.6508	± 0.0039	Inclination (i)	86.64°	± 0.53	Longitude of periastron (ω)	210.4°	± 1.3
Node (Ω)	67.21°	± 0.51	Notes			Reference	LeB2017
Equinox			Last observation			Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	69.1	0.021
2001-01-01	70.1	0.018
2002-01-01	71.7	0.013
2003-01-01	77.3	0.005
2004-01-01	239.2	0.004
2005-01-01	53.5	0.002
2006-01-01	66.1	0.014
2007-01-01	67.4	0.020
2008-01-01	68.2	0.022
2009-01-01	69.0	0.021
2010-01-01	70.0	0.018
2011-01-01	71.6	0.013
2012-01-01	76.5	0.006
2013-01-01	237.0	0.003
2014-01-01	32.0	0.001
2015-01-01	66.0	0.014
2016-01-01	67.4	0.020
2017-01-01	68.2	0.022
2018-01-01	69.0	0.022
2019-01-01	69.9	0.019
2020-01-01	71.5	0.013
2021-01-01	75.9	0.006
2022-01-01	234.0	0.003
2023-01-01	278.6	0.001
2024-01-01	65.9	0.013
2025-01-01	67.3	0.020
2026-01-01	68.1	0.022
2027-01-01	68.9	0.022
2028-01-01	69.9	0.019
2029-01-01	71.3	0.014
2030-01-01	75.3	0.007

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

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

WDS 18039-2422 SNA 78 (9 Sgr) : NOTES

discov_num	notes	refcode
SNA 78	9 Sgr. The primary is an emmission-line star. PIONIER clearly resolves
	the long-period SB2 discussed by Rauw et al. (2012, A&A 542, A95) at a
	separation of ~5mas.	Sna2014

REFERENCES

refcode	metd	author	reference
LeB2017	orb j	Le Bouquin, J.-B., Sana, H., Gosset, E., De Becker, M., Duvert, G., Absil, O.,	2017A&A...601A...34
LeB2017	+Kv	Anthonioz, F., Berger, J.-P., Ertel, S., Grellmann, R., Guieu, S., Kervella, P.,
LeB2017		Rabus, M., & Willson, M.
LeB2017		A&A 601, A34, 2017
Sna2014	Kv j	Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L.,	2014ApJS..215...15S
Sna2014	+A	Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A.,
Sna2014		Kratter, K., Schnurr, O., & Zinnecker, H.
Sna2014		ApJS 215, 15, 2014
Sna2014		(NACO companions in Table 6 assumed physical if quoted probability of spurious
Sna2014		detection <10%, optical if >90%, otherwise indeterminate)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18039-2422	SNA 78		2013	1	242	0.0	6.30	6.80	O4V	V K	180352.44-242138.6
18039-2422	SNA 78		2016	19	68	0.0	6.30	6.80	O4V	NV K	180352.44-242138.6
18039-2422	SNA 78		2017	24	69	0.0	6.30	6.80	O4V	NV K	180352.44-242138.6

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WDS 18039-2422 SNA 78 (9 Sgr) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18039-2422 SNA 78 (9 Sgr) : MEASURES

No records found.

WDS 18039-2422 (9 Sgr) : VIRTUAL EYEPIECE

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WDS 18039-2422 (9 Sgr) : ALADIN DSS IMAGE @ 18^h 03^m 52.44^s -24° 21' 38.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18039-2422 SNA 78 (9 Sgr) : 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		18039-2422	SNA 78		69	0.0
Show		18037-2423	AEN 1	AB	9	3.5	3
Show		18037-2423	SBE 1	Aa,Ab	222	0.0	3
Show		18039-2419	SNA 79		81	0.1	4
Show		18044-2421	TDT 662		121	1.8	7
Show		18044-2423	RBR 8		318	3.1	8
Show		18042-2415	BU 1126	AB	55	0.6	9
Show		18042-2415	HJ 5009	AB,C	21	4.6	9
Show		18042-2415	DAW 218	AB,D	138	24.9	9
Show		18047-2421	HJ 5010		351	3.1	12
Show		18026-2415	RST3149	AB	62	1.7	18
Show		18026-2415	ARG 31	AC	26	35.6	18
Show		18026-2415	BU 1462	AD	196	27.3	18
Show		18061-2412	B 376	AB	97	1.9	32
Show		18061-2412	SNA 81	Aa,Ab	116	0.0	32
Show		18061-2412	SNA 81	AC	225	6.6	32
Show		18061-2412	SNA 81	AD	8	7.9	32
Show		18056-2356	ARA2213		235	14.5	36
Show		18023-2452	RST3148		135	0.5	38
Show		18009-2413	RST3147		205	0.2	43
Show		18054-2343	TDT 672		103	1.6	44
Show		18049-2326	ARA2210		145	8.7	58
Show		18057-2514	OCC1041	AB	-1	0.0	59
Show		18057-2514	OCC1041	AC	-1	0.0	59
Show		18056-2328	ARA2212		155	10.0	60
Show		18055-2326	SKF2529	AB	56	1.8	60
Show		18055-2326	SKF2529	AC	271	1.5	60
Show		18055-2326	SKF2529	BC	251	3.1	60
Show		18005-2341	SKF2528	DE	223	3.0	62
Show		18005-2341	ALD 110	AB	73	3.9	62
Show		18005-2341	SKF2528	AC	19	1.7	62
Show		18005-2341	SKF2528	AD	203	6.5	62
Show		18041-2523	OCC1036	AB	-1	0.0	62
Show		18041-2523	OCC1036	AC	-1	0.0	62
Show		18036-2523	OCC1035		-1	0.0	62
Show		17592-2426	RST3143		260	2.5	65
Show		17598-2349	GUL 1		243	3.7	65
Show		18034-2526	OCC1034		-1	0.0	65
Show		18040-2529	HDO 148		15	4.6	68
Show		18051-2317	B 375		168	0.9	68
Show		18022-2318	B 2851		156	10.5	68
Show		18004-2333	RST3146		228	0.5	68
Show		18029-2533	OCC1033	AB	-1	0.0	73
Show		18029-2533	OCC1033	AC	-1	0.1	73
Show		18064-2525	RCH 6		208	2.3	73
Show		17585-2425	B 366		43	1.5	74
Show		18055-2312	ARA2211		89	10.8	74
Show		17586-2441	DAM 687	A,BC	205	12.3	74
Show		17586-2441	RST3139	BC	145	1.2	74
Show		18031-2535	RCH 3		359	0.0	75
Show		18094-2432	BRT3062		125	4.6	77

WDS 18039-2422 : COMPONENTS

	A
B	pa=67.2° sep=0.02"

18039-2422 A

Componente originario normalizzato	AB	Name	9 Sgr	Coord arcsec 2000	180352.44-242138.6	Mag	6.3
Spectral class	O4V (blue)	PmRA	0.00	PmDE	-2.0	SAO	186204
HIP	88469	Tycho2	6842-01702-1	HD	164794	HR	6736
GC	24574	CD	CD-2413814	CP	CP-24 6144	Flamsteed	9 Sagittarii
Flamsteed name	9 Sgr

Tycho2

Tycho2	6842-01702-1	Pflag		RAmdeg	270.96852421	DEmdeg	-24.36073278
PmRA	0.8	PmDE	-2.1	E RAmdeg	3	E DEmdeg	4
E pmRA	0.8	E pmDE	0.8	EpRAm	1991.48	EpDEm	1991.26
Num	27	Q RAmdeg	0.7	Q DEmdeg	0.8	Q pmRA	0.8
Q pmDE	0.6	BTmag	5.942	E BTmag	0.014	VTmag	5.960
E VTmag	0.010	Prox	999	TYC	T	HIP	88469
CCDM		RAdeg	270.96852194	DEdeg	-24.36072806	EpRA 1990	1.82
EpDE 1990	1.81	E RAdeg	3.4	E DEdeg	3.9	Posflg
Corr	0.1

SAO

SAO	186204	DelFlag		RA1950		PmRA1950	0.0002
DE1950		PmDE1950	0.002	Vmag	5.9	SpType	Oe5
Double code		Source	70	CatNum	24574	DM	CD-2413814
DMcomp		BDsup		HD	164794	M HD	0
GC	24574	RA1950rad	4.71590893	DE1950rad	-0.42522363	PmRA2000	0.0001
PmDE2000	0.003

Hipparcos

Catalog	H	HIP	88469	Proxy		RAhms	18 03 52.44
DEdms	-24 21 38.6	Vmag	5.89	VarFlag		R Vmag	H
RAdeg	270.969	DEdeg	-24.3607	AstroRef		Plx	0.66
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	164794	BD
CD	CD-2413814	CP	CP-24 6144	Dm number	-2413814	VIred	0.2
SpType	O6	R SpType		Coord arcsec 2000	180352.44-242138.6

Hipparcos 2

HIP	88469	Sn	5	So	0	Nc	1
RArad	4.7292928239	DErad	-0.425174878	Plx	0.49	PmRA	0.19
PmDE	-1.49	E RArad	0.39	E DErad	0.25	E Plx	0.4
E pmRA	0.49	E pmDE	0.28	Hpmag	5.9561	E Hpmag	0.0009
SHp	0.007	VA	0	BV	0.031	E BV	0.031
VI	0.2

18039-2422 B

Componente originario normalizzato	AB		Coord arcsec 2000	180352.44-242138.6		Mag	6.8		Calc delta mag	0.5
Calc coord	yes