18453-2039 EVS 37 AC

18^h 45^m 17.50^s -20° 38' 50.5" P.A. 67.00 sep 10.8 mag 7.50,16.00 Sp F8Ib dist. 628.93 pc (2051.57 l.y.)

Coord 2000	18453-2039	Discov num	EVS 37	Comp	AC	Coord arcsec 2000	18 45 17.50 -20 38 50.5
Date first	2011	Date last	2015	Obs	2
Pa first	66	Pa last	66.5	P.A. Now (θ)	66.5°
Sep first	10.6	Sep last	10.762	Sep. Now (ρ)	10.762"
Mag pri	7.50	Mag sec	16.00	delta mag (ΔM)	8.5	Spectral class	F8Ib (yellow-white)
Pri motion ra	-000	Sec motion ra
Pri motion dec	-003	Sec motion dec
Notes	N U (See Notes, Proper motion indicates non-physical)

This double is not physical.

18453-2039 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		187233	18 45 18 -20 38 50	GAA 14 Aa,Ab	2013	2	349	0.0	8.10	8.40	0.30
Show		187233	18 45 18 -20 38 50	EVS 37 AB	2011	1	128	3.1	7.50	17.90	10.40
Show		187233	18 45 18 -20 38 50	EVS 37 AC	2015	2	67	10.8	7.50	16.00	8.50		<===
Show		187233	18 45 18 -20 38 50	EVS 37 AD	2011	1	156	10.6	7.50	16.10	8.60
Show		187233	18 45 18 -20 38 50	EVS 37 AE	2015	2	271	11.5	7.50	18.70	11.20
Show		187233	18 45 18 -20 38 50	EVS 37 AF	2015	3	330	18.2	7.50	16.90	9.40
Show	V350 Sgr	187233	18 45 18 -20 38 50	KRV 18 AG	2015	7	250	29.9	7.50	12.30	4.80
Show		187233	18 45 18 -20 38 50	KRV 18 AH	2015	5	304	34.9	7.50	17.00	9.50

Ninefold system
8 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	V350 Sgr	Constellation	Sagittarius	SAO	187233	HIP	92013
Tycho2	6292-00030-1	Gaia DR2	4080122796947250176	HD	173297	BD	BD-20 5253
Distance	628.93	Distance ly	2051.57

WDS 18453-2039 EVS 37 AC : NOTES

discov_num	notes	refcode
EVS 37	Primary is the Cepheid V350 Sgr.	Evs2016a

REFERENCES

refcode	metd	author	reference
Evs2016a	H3 -	Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., &	2016AJ....151..129E
Evs2016a		Pillitteri, I.
Evs2016a		AJ 151, 129, 2016
Evs2016a		(some theta values replaced with more precise values from Evs2016b)	2016AJ....151..108E

DISCOVERER

idgroup	discov	author
1	GAA	Gallenne, A., Merand, A., Kervella, P., Breitfelder, J., Le Bouquin, J.-B.,
1	GAA	Monnier,J.D., Gieren, W., Pilecki, B., & Pietryznski, G.
2	GAA	Gallenne, A., Kervella, P., Merand, A., Evans, N.R., Girard, J.H.V., Gieren, W., &
2	GAA	Pietryznski, G.
3	GAA	Gallenne, A., Merand, A., Kervella, P., Monnier, J.D., Schaefer, G.H., Baron, F.,
3	GAA	Breitfelder, J., Le Bouquin, J.-B., Roettenbacher, R.M., Gieren, W.,
3	GAA	Pietrzynski, G., McAlister, H., et al.
4	GAA	Gallenne, A., Pietrzynski, G., Graczyk, D., Konorski, P., Kervella, P.,
4	GAA	Merand, A., Gieren, W., Anderson, R.L., & Villanova, S.
5	GAA	Gallenne, A., Kervella, P., Evans, N.R., Proffitt, C.R., Monnier, J.D., Merand, A.,
5	GAA	Nelan, E., Winston, E., Pietrzynski, G., Schaefer, G., Gieren, W., Anderson, R.I.,
5	GAA	Borgniet, S., Kraus, S., Roettenbacher, R.M., Baron, F., Pilecki, B., Taormina, M.,
5	GAA	Graczyk, D., Mowlavi, N. & Eyer, L.
6	GAA	Gallenne, A., Pietrzynski, G., Graczyk, D., Pilecki, B., Storm, J., Nardetto, N.,
6	GAA	Taormina, M., Gieren, W., Tkachenko, A., Kervella, P., Merand, A. & Weber, M.
7	GAA	Gallenne, A., Kervella, P., Borgniet, S., Merand, A., Pietrzynski, G., Gieren, W.,
7	GAA	Monnier, J.D., Schaefer, G.H., Evans, N.R., Anderson,R.I., Baron, F.,
7	GAA	Roettenbacher, R.M. & Karczmarek, P.
8	GAA	Gallenne, A., Merand, A., Kervella, P., Graczyk, D., Pietrzynski, G., Gieren, W. &
8	GAA	Pilecki, B.
9	KRV	Kervella, P., Thevenin, F., & Petr-Gotzens, M.G.
18	KRV	Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
18	KRV	Proto, Y., Karczmarek, P., Nardetto, N., Gieren, W. & Pietrzynski, G.
19	KRV	Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
19	KRV	Nardetto, N., Gieren, W. & Pietrzynski, G.
21	KRV	Kervella, P., Borgniet, S., de Souza, A.D., Merand, A., Gallenne, A., Rivinius, T.,
21	KRV	Lacour, S., Carciofi, A., Faes, D.M., Le Bouquin, J.-B., Taormina, M., Pilecki, B.,
21	KRV	Berger, J.-P., Bendjoya, P., Klement, R., Millour, F., Janot-Pacheco, E., Spang, A.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18453-2039	EVS 37	AC	2011	1	66	10.6	7.52	16.00	F8Ib/II	NU	184517.50-203850.5
18453-2039	EVS 37	AC	2015	2	67	10.8	7.52	16.00	F8Ib/II	NU	184517.50-203850.5

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WDS 18453-2039 EVS 37 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18453-2039 EVS 37 AC : MEASURES

No records found.

WDS 18453-2039 : VIRTUAL EYEPIECE

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WDS 18453-2039 : ALADIN DSS IMAGE @

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

Error -22130
Not valid ID.

Error -22130
Not valid ID.
Error -27220
Not valid ID.