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

TYC 776-91-1


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

The reality of old moving groups - the case of HR 1614. Age, metallicity, and a new extended sample
We prove the existence of the old and metal-rich moving group HR 1614.This is done using the new Hipparcos parallaxes in combination withmetallicities derived from Strömgren photometry, supported bydynamical simulations of the evolution of old moving groups in thegalactic potential. A new selection criterion for this moving group ispresented as well as a new, extended sample of probable member stars. Inparticular we find that the HR 1614 moving group has an age of about 2Gyr (using Bertelli et al. 1994 isochrones) and a [Fe/H] =~ 0.19 +/-0.06 dex. We also revisit and apply our new selection criterion to thesamples in Eggen (1992) and Eggen (1998b). It is found that, whenbinaries and stars with too low metallicity have been removed, 15 of hisstars fulfill our criteria. Based on observations with the ESA Hipparcossatellite.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Gémeaux
Right ascension:07h24m49.99s
Declination:+14°38'42.6"
Apparent magnitude:9.775
Proper motion RA:-6.2
Proper motion Dec:-2.6
B-T magnitude:10.269
V-T magnitude:9.816

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 776-91-1
USNO-A2.0USNO-A2 0975-05082704
HIPHIP 35972

→ Request more catalogs and designations from VizieR