NGC 7590 and friends

[MarkS]

I missed the opportunity to get more data on IC4721 etc. so that will have to wait a year.

 

Still working up the f/6.8 config on the ASA10, I targetted the three closely grouped galaxies of the Grus Quartet - NGC7590, 7582, and 7599.

 

These are quite faint, with surface brightnesses of about 12 mag. The brightest star in the field of this image is 12.8 mag. FOV is 24 X 18 arcmin.

 

Total exposure 3hr 20min: 16 x 5min binX1 L; 8 X 5min each binX2 RGB.  I'm sure these faint objects need more time, so I hope to double or treble this as the weather allows.

 

Seeing was ~2arcsec, SQL reading 21.55 (a record for this site)

 

Mark

 

PS: The high res original reveals at least another dozen or so tiny distant galaxies.