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HD 176537

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Looking for dust and molecules in Nova V4743 Sagittarii We present 1.2 mm continuum images and spectral line observations ofCO(1-0) and SiO(3-2) rotational transitions of the recent nova V4743Sgr. The nova is detected at 1.2 mm showing a variable millimetreemission. Only upper limits of TA* = 0.06 K for COand TA* = 0.03 K for SiO could be derived. Wediscuss the results in terms the nature of the millimetre emissionfavouring dust from a phase before the recent outburst as the likelyradiating source. We also comment on the possibility of free-freeemission from the ionised shell as the source of the measured millimetreradiation.Based on observations collected with the Swedish ESO Submm Telescope atthe European Southern Observatory, La Silla, Chile.
E. W. Fick Observatory stellar radial velocity measurements. I - 1976-1984 Stellar radial velocity observations made with the large vacuumhigh-dispersion photoelectric radial velocity spectrometer at FickObservatory are reported. This includes nearly 2000 late-type starsobserved during 585 nights. Gradual modifications to this instrumentover its first eight years of operation have reduced the observationalerror for high-quality dip observations to + or - 0.8 km/s.
Radial velocities of southern stars obtained with the photoelectric scanner CORAVEL. III - 790 late-type bright stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&AS...59...15A&db_key=AST
Radial velocities of southern HR stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980PASP...92..713B&db_key=AST
Photoelectric observations of lunar occultations. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975MNRAS.170..229H&db_key=AST
Carbon Stars at Intermediate Galactic Latitudes. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1958ApJ...127..191B&db_key=AST
Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121..118H&db_key=AST
Colors of bright stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1954AJ.....59..228E&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Sagittario
Ascensione retta:	19^h01^m37.80^s
Declinazione:	-22Â°41'44.0"
Magnitudine apparente:	6.24
Distanza:	467.29 parsec
Moto proprio RA:	2.5
Moto proprio Dec:	1.1
B-T magnitude:	8.42
V-T magnitude:	6.421

Cataloghi e designazioni:

Nomi esatti
HD 1989	HD 176537
TYCHO-2 2000	TYC 6873-524-1
USNO-A2.0	USNO-A2 0600-38651611
BSC 1991	HR 7182
HIP	HIP 93423

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