These two images were taken on two separate evenings under moonless sky conditions. I was suing my 10 inch f/4.8 reflector, a Vixen Atlus mount, PHD autoguiding and an Atik 383L mono CCD camera.
I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image.
For the image luminance I used an IDAS filter with the camera set on x1 bin mode with a total exposure time of 90 minutes. For the colour data however, I set the camera on x2 bin mode. The total exposure times were 20 minutes using an OIII filter, 25 minutes using a H-alpha filter and 15 minutes using a blue filter.
The Heart of the Virgo cluster 1
The Heart of the Virgo Cluster 2
