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

HD 21684


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Spectral Classification of Stars in A Supplement to the Bright Star Catalogue
MK spectral types are given for about 584 stars in A Supplement to theBright Star Catalogue. These are compared with Hipparcos parallaxes tocheck the reliability of those classifications. The estimated errors are+/-1.2 subtypes, and 10% of the luminosity classes may be wrong.

Stars Brighter than V=6M5 not Listed in the HR Catalogue
Not Available

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:

Observation and Astrometry data

Constellation:Perseus
Right ascension:03h31m30.29s
Declination:+40°45'35.8"
Apparent magnitude:6.498
Distance:133.69 parsecs
Proper motion RA:24.1
Proper motion Dec:-41
B-T magnitude:6.776
V-T magnitude:6.521

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 21684
TYCHO-2 2000TYC 2866-771-1
USNO-A2.0USNO-A2 1275-02391834
HIPHIP 16425
→ Request more catalogs and designations from VizieR