J/AJ/110/212 J/AJ/110/212 BVR photometry of stars in NGC 2366 A Aparicio J Cepa C Gallart H O Castaneda C Chiosi G Bertelli J M Mas-Hesse C Munoz-Tunon E Telles G Tenorio-Tagle A I Diaz M L Garcia-Vargas F Garzon R M Gonzalez-Delgado E Perez J M Rodriguez-Espinosa E Terlevich R J Terlevich A M Varela J M Vilchez Astron. J. 110 212 1995 1995AJ....110..212A Photometry, CCD The stellar content of the Im galaxy NGC 2366 is discussed on the basis of CCD BVR photometry. The three brightest blue and red stars have been used to estimate its distance, obtaining a value of 2.9pc. The spatial distribution of the young stellar population is discussed in the light of the integrated color indices and the color-magnitude diagrams of different zones of the galaxy. A generalized star formation burst seems to have taken place about 50Myr ago. The youngest stars are preferentially formed in the South-West part of the bar, where the giant H II complex NGC 2363 is located, being younger and bluer. The bar seems to play a role favoring star formation in one of its extremes. Self-propagation however, does not seem to be triggering star formation at large scale. A small region, populated by very young stars has also been found at the East of the galaxy.

NGC 236607 28.7 +69 11 NGC 236307 28.4 +69 11

Id Identification number --- Xpos CCD X position (from East to West) pix Ypos CCD Y position (from South to North) pix B-V B-V color index mag Vmag V magnitude mag V-R V-R color index mag Patricia Bauer CDS 1996Apr02A. Aparicio, <aaj@ll.iac.es> J_AJ_110_212.xml