Find The Observatory in Bologna

Click to open a larger map

Powered by Google Maps Widget

Loiano Observatory

Click to open a larger map

Powered by Google Maps Widget

Weather in Bologna

Bologna
March 29, 2017, 3:25 am
Clear
Clear
9°C
real feel: 6°C
current pressure: 1020 mb
humidity: 61%
wind speed: 3 m/s SSW
sunrise: 7:02 am
sunset: 7:39 pm
 

HST photometry of M31 star clusters

Publicly available catalogs containing magnitudes and positions from PSF-fitting photometry on HST images for a total of 42 star clusters in M31:

 

– Catalogs from the paper: HST/ACS colour-magnitude diagrams of M31 globular clusters (Perina et al.  2009)

– Catalogs from the paper: An HST/WFPC2 survey of bright young clusters in M31. IV. (Perina et al. 2010)

– Catalogs from the paper: Color-magnitude diagrams of candidate intermediate-age M 31 GCs. (Perina et al.  2011)