Morning everyone, I thought I would have a go at these two objects from Pier 7, both in a standard palette. I do hope you will have a good day.
Simon
Pier 7 is a William Optics FLT132 F5.6 APO, with a QSI 660-WSG Mono CCD camera, all on a Paramount MX mount. I was able to use from the data provided, 33 Has, 25 OIIIs and 21 SIIs for NGC 6604 all at 5 minutes long each - a number were out of focus so sadly they could not be used. The integration time was 6 hours 35minutes.
For IC 1871 I used 9 Has, 8 OIIIs and 8 SIIs each at 15 minutes long exposure time, from the data provided, an integration time of 6 hours and 15 minutes.
Thanks everyone...