Home     Getting Started     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astro Photo     The Collection     Forum     Blog New!     FAQ     Press     Login  

HD 61699


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

New periodic variables from the Hipparcos epoch photometry
Two selection statistics are used to extract new candidate periodicvariables from the epoch photometry of the Hipparcos catalogue. Theprimary selection criterion is a signal-to-noise ratio. The dependenceof this statistic on the number of observations is calibrated usingabout 30000 randomly permuted Hipparcos data sets. A significance levelof 0.1 per cent is used to extract a first batch of candidate variables.The second criterion requires that the optimal frequency be unaffectedif the data are de-trended by low-order polynomials. We find 2675 newcandidate periodic variables, of which the majority (2082) are from theHipparcos`unsolved' variables. Potential problems with theinterpretation of the data (e.g. aliasing) are discussed.

The classification of intrinsic variable stars. II. The red variables of S and related types
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972ApJ...177..489E&db_key=AST

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Puppis
Right ascension:07h40m13.77s
Declination:-12°04'49.4"
Apparent magnitude:7.909
Distance:350.877 parsecs
Proper motion RA:-10.6
Proper motion Dec:-8.5
B-T magnitude:7.795
V-T magnitude:7.9

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 61699
TYCHO-2 2000TYC 5418-1129-1
USNO-A2.0USNO-A2 0750-04881368
HIPHIP 37366

→ Request more catalogs and designations from VizieR