Abstract
Electronographic BV photometry of NGC 288 has been obtained, giving the colour–magnitude diagram down to V = 21.0, two magnitudes below the turn-off point. The main sequence is bluer than has been found in previous work and lies close to the position expected for a normal globular cluster. Adopting externally derived values for the metallicity, distance modulus and reddening, the VandenBerg theoretical isochrone for an age of between 16 and 17 Gyr fits well. The problems in an accurate age determination are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
