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HD 31311


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Not Available

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The general catalogue of trigonometric [stellar] paralaxes
Not Available

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Using a photoelectric speedometer based on the radial velocityspectrometer of Griffin (1967), radial velocities of 116 southern redstars, many of them semi-regular variables, were measured. Theinstrument was placed at the Newtonian focus of the 130-inch (4.2-m)camera of the Coude spectrograph of the Mount Stromlo 74-inch (1.88-m)reflector. The stellar spectrum was focused on a mask 50 mm in length,designed to match the spectrum of the M-giant Beta Pegasi. The inversedispersion was 2.5 angstroms per millimeter in the second order. Thewavelength range used (5338-5449 angstroms) was chosen because it isbetween two TiO bands and so suffers less blanketing in M stars. Resultsare tabulated and compared with standard values.

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Not Available

58th Name-List of Variable Stars
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Stellar parallaxes determined photographically at the Cape Observatory (Eighteenth List)
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Observation and Astrometry data

Constellation:ちょうこくぐ座
Right ascension:04h52m35.40s
Declination:-43°03'38.0"
Apparent magnitude:7.972
Distance:689.655 parsecs
Proper motion RA:30.7
Proper motion Dec:53.3
B-T magnitude:9.97
V-T magnitude:8.137

Catalogs and designations:
Proper Names
HD 1989HD 31311
TYCHO-2 2000TYC 7592-639-1
USNO-A2.0USNO-A2 0450-01732774
HIPHIP 22674

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