NGC 3114
NGC 3114 is a sparse open cluster which is projected onto the outskirts of the Carina complex. Because of the high number of field stars from the disc of the Milky Way, it is very difficult object to study as this contamination makes its size ambiguous. Studies of NGC 3114. NGC 3114 has first been subject of studies in 1963, when Jankowitz and McCosh obtained photographic UBV photometry for 171 of its stars and photoelectric UBV photometry of 52 stars. They estimated the cluster to be 910 parsecs from the Sun, its mean visual extinction formula_1 and its  age to range from formula_2 and formula_3 years. In 1988, Schneider and Weiss obtained photometry data for 122 stars, revising the cluster reddening to be formula_4. Three years later, Sagar and Sharpless made the largest data recording of the cluster to date, obtaining BV CCD photometry of around 350 stars from seven 3.6'×5.4' regions. Because these regions were rather far from the cluster centre, a substantial contamination was expected. Nevertheless, by assuming the cluster reddening value obtained by Schneider and Weiss, they found the cluster to be formula_5 pc, which agreed with the measurements taken 28 years previously by Jankowitz  and McCosh. They also found the age of the cluster to be formula_6 years. Finally, in 1989 Claria' et al. estimated the cluster chemical abundance, finding that NGC 3114 has basically the same metal richness as the Sun, for which formula_7 (Fe - Iron, H - Hydrogen).