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

HD 33135


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.

Behavior of lambda 2800 Mg II in stellar spectra
The results of measurements of the equivalent widths of the resonancedoublet of ionized magnesium lambda 2800 Mg II in the spectra of 51relatively faint stars, up to 10m, of the spectral classes B1-K5 arepresented. The observed material has been obtained by means of the spaceobservatory 'Orion 2'. Some regularities in the behavior of lambda 2800Mg II in stellar spectra have been revealed: wide and deep depression ofthe continuous spectra at 2800 A in F-G type stars; the presence of thedoublet lambda 2800 Mg II in the form of weak emission in the spectra ofcold stars (K2-K5); the presence both of the multiplet lambda 3080 Ti IIand the doublet lambda 2800 Mg II simultaneously either in emission - inthe late-type stars - or in absorption in earlier types; the existenceof combined profiles of lambda 2800 Mg II, i.e., a wide absorption linewith a weak emission in the center, in stars of the transitional class(G5-K0), etc. A well-defined empirical relationship between theequivalent width of lambda 2800 Mg II and the spectral class of the starhas been established.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:ぎょしゃ座
Right ascension:05h10m23.16s
Declination:+45°28'06.6"
Apparent magnitude:8.987
Distance:282.486 parsecs
Proper motion RA:-0.7
Proper motion Dec:1.9
B-T magnitude:9.108
V-T magnitude:8.997

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 33135
TYCHO-2 2000TYC 3345-2654-1
USNO-A2.0USNO-A2 1350-05421861
HIPHIP 24081

→ Request more catalogs and designations from VizieR