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

HD 688


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Occultations of stars by solar system objects. IX - Occultations of catalog stars by steroids, planets, and major satellites in 1992 and 1993
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1992AJ....103.2079W&db_key=AST

The Perkins catalog of revised MK types for the cooler stars
A catalog is presented listing the spectral types of the G, K, M, and Sstars that have been classified at the Perkins Observatory in therevised MK system. Extensive comparisons have been made to ensureconsistency between the MK spectral types of stars in the Northern andSouthern Hemispheres. Different classification spectrograms have beengradually improved in spite of some inherent limitations. In thecatalog, the full subclasses used are the following: G0, G5, G8, K0, K1,K2, K3, K4, K5, M0, M1, M2, M3, M4, M5, M6, M7, and M8. Theirregularities are the price paid for keeping the general scheme of theoriginal Henry Draper classification.

The absolute magnitudes of G5-M3 stars near the giant branch
The absolute magnitudes of stars on the red giant branch (G-K-M) havebeen determined using both trigonometric and statistical parallaxes,from a sample of 212 stars classified in the Revised MK System (Keenanand Pitts, 1980). The results of both methods are summarized in a table.A good agreement is found and the difference between trigonometric andstatistical parallaxes is found not to be greater than + or - 0.002. Thecomputed absolute magnitudes and space motions are tabulated.

Revised MK spectral types for G, K, and M stars
A catalog of spectral types of 552 G, K, and M stars is presented, whichis classified on the revised MK system. Stellar representatives of thehalo, disk, and arm populations in all parts of the sky are included.Photoelectric V magnitudes are given, as are intensity estimates of anyfeatures which make the spectrum appear peculiar as compared to thespectrum of a similar normal star. Abundance indices are also providedin the following lines or bands: CN, barium, Fe, calcium, and CH.

MK classifications for F-and G-type stars. 3.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974AJ.....79..682H&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:Ιχθείς
Right ascension:00h11m09.65s
Declination:-03°19'17.0"
Apparent magnitude:6.746
Distance:257.732 parsecs
Proper motion RA:27.6
Proper motion Dec:-11.5
B-T magnitude:8.05
V-T magnitude:6.854

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 688
TYCHO-2 2000TYC 4667-1064-1
USNO-A2.0USNO-A2 0825-00046128
HIPHIP 906

→ Request more catalogs and designations from VizieR