Gathering data...

February 13, 2019 - Reading time: ~1 minute

I finished the night of Feb 9th with a small batch of frames to process--really only enough for this bi-color Ha-OIII of the Rosette. I also shot some Ha frames of IC 443,  the Jellyfish supernova remnant. Both are looking okay, but I need more data. And the weather doesn't look like it's going to cooperate until the weekend--snow and rain.  (I was also playing with the old WO 200mm guide scope with this session, and it went well--Total RMS" in the .60s and .70s most of the time. RMS is the Root Mean Square in arcseconds, the standard deviation of the accumulated star movements over a particular guiding session. Lower is better). Exposures: 28 x 240 seconds of Ha, 26 x 240 seconds of OIII. Equipment: William Optics GT81 APO refractor, ZWO ASI1600MM-Pro monochrome 16MP camera (unity gain 139/21), Astronomik filters, iOptron CEM25P mount, INDI/Ekos/KStars running in Stellarmate/Raspberry Pi 3b+

Setup for the night: