1999A&AS..134..129K

Query : 1999A&AS..134..129K

1999A&AS..134..129K - Astron. Astrophys., Suppl. Ser., 134, 129-133 (1999/January-1)

Photometry and spectroscopy of the central star of the Trifid nebula.

KOHOUTEK L., MAYER P. and LORENZ R.

Abstract (from CDS):

UBV photometry of the central star of the Trifid nebula - HD 164492, which has so far been suspected of photometric as well as of radial velocity variability - is presented. The results of our photometry do not confirm any variability. Moreover, based on new high resolution CCD spectra any radial velocity variability can be discarded. Photometry of several other members of the multiple stellar system is included; according to this photometry, the system is a physical one. Equivalent widths for the main component of HD 164492 are given. Positions measured on CCD exposures are presented too.

Abstract Copyright: ∼

Journal keyword(s): binaries: visual - stars: early-type - stars: individual: HD 164492 - ISM: Trifid nebula

Nomenclature: Table 5: [KML99] NN (Nos 1-10).

Simbad objects: 8

Full paper

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Number of rows : 8

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	HD 35921	EB*	05 29 42.6497086888	+35 22 30.097742031	6.23				O9II	240	0
2	NGC 6514 149	*	18 02 21.9929175720	-23 02 25.560942180				13.13	~	7	0
3	NGC 6514 147	*	18 02 23.0573846112	-23 02 05.974579176			12.4		F3V	9	1
4	EM* LkHA 123	Em*	18 02 23.13015	-23 01 59.9462		8.72	6.80	9.37	B1V	44	0
5	HD 164492	Y*O	18 02 23.5527520992	-23 01 50.999556180	6.49	7.49	6.80	7.52	O7.5Vz	225	0
6	HD 164492B	sg*	18 02 23.7095503200	-23 01 45.155769456		8.0	12.06		B2Vnn	20	0
7	NGC 6514 148	Y*O	18 02 25.8632041824	-23 01 42.420957888				15.87	~	8	0
8	M 20	OpC	18 02 42	-22 58.3					~	425	1

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