Home     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     Astro Photo     The Collection     Forum     Blog New!     FAQ     Login  
→ Adopt this star  

HD 177984


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Contribution to the study of composite spectra: XI. Orbital elements of some faint systems
We present the results of a radial-velocity study of nine new faint SB1spectroscopic binaries with composite spectra: HD 137975-6, 177984, HDE226489, 231613-4, 255387-8, 256138-9, 264997-8, 276787 and 293041-2. Theobservations were made at Haute-Provence and Cambridge observatorieswith CORAVEL instruments between 1982 and 2006. From the radial-velocitymeasurements of the cool components, we derive the orbital elements ofthose spectroscopic binaries for the first time. Using all the availabledata, we propose a model for each system that describes the nature ofthe individual components, with an estimation of the angular separationand orbital inclination. Finally we discuss the rotation-revolutionsynchronism of the cool components.

A survey of stars with composite spectra.
Not Available

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Αετός
Right ascension:19h06m37.65s
Declination:+07°41'27.4"
Apparent magnitude:9.271
Proper motion RA:22.4
Proper motion Dec:-5.9
B-T magnitude:9.886
V-T magnitude:9.322

Catalogs and designations:
Proper Names
HD 1989HD 177984
TYCHO-2 2000TYC 1040-297-1
USNO-A2.0USNO-A2 0975-14112411
HIPHIP 93842

→ Request more catalogs and designations from VizieR