Tuesday, 12 February 2019

Relic Active Regions Closeup - 9th February

The sun may at times appear to be blank and featureless but there is often the subtle details, here is a old relic active region from a few rotations ago revealing itself as nothing more than turbulent plage.  Taken with the SM90 and 2.5x barlow with the PGR Blackfly IMX249 camera.

Sunday, 10 February 2019

Solar Minimum Sunshine 9th February

Nothing to see here, move along...  Saturdays disk is fairly typical of a solar minimum sun - the disk looks blank.  There is a small region of very decayed plage from active regions several rotations ago but that it is it on the surface.  The proms were the star of the show, and looked fantastic through the SM90 with an 18mm Coronado Cemax eyepiece.  This image is a composite disk / proms shot with the PGR GH3 ICX814 camera.  Poor seeing and haze were the order of the morning to give imaging that extra challenge, but it is nice to see the sun rising higher and higher in the sky with each passing week.  Wonder how long these conditions will last until we see the signs of cycle 25 becoming more predominant and obvious in the solar northern hemisphere?

Sunday, 3 February 2019

Ha Full Disk With a New Setup - 3rd February

A new year and a new solar setup.  As mentioned in previous posts I have a PGR Grasshopper 3 with a ICX814 chip that gives a 9.1Mp image which is great for full disks up to 1000mm focal length.  I just bought a Coronado SM90ii, a rather nice scope that is fitted with a Feathertouch focuser.

With it's 800mm focal length the full disk fits comfortably on the ICX814 chip with room to spare, and with no newtons rings visible no tilt is needed either.  Todays conditions were hazy at best and the sun is still skirting in the top of the trees, but with each passing week it gets higher and conditions get better.  Looking forward to seeing what this scope is capable of this year!