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

HD 221397


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

A survey of F-type stars
The results of a spectroscopic survey of 350 F-type stars at adispersion of 80 A/mm are presented. Twenty-two percent of the starsshow degree of metal line weakening; this result parallels that ofphotometric investigations in the uvby Beta system. The line weakeningparameter introduced correlates strongly with photometric indices andwith abundance anomalies established by theoreticians of stellaratmospheres. The classification can thus be used to easily select starswith underabundances stronger than a factor four with respect to thesun.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Wassermann
Right ascension:23h31m56.30s
Declination:-10°59'40.5"
Apparent magnitude:8.758
Distance:284.9 parsecs
Proper motion RA:9.7
Proper motion Dec:-4.4
B-T magnitude:9.963
V-T magnitude:8.858

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 221397
TYCHO-2 2000TYC 5832-210-1
USNO-A2.0USNO-A2 0750-21498577
HIPHIP 116143

→ Request more catalogs and designations from VizieR