M 27 - Filter V

Seeing (arcsec)	Airmass 1.0	Airmass 1.5	Airmass 2.0
0.6	3*60s	3*60s	3*90s
1.0	3*60s	3*60s	3*90s
1.5	3*60s	3*60s	3*90s
2.0	3*60s	3*60s	3*90s