June 15th's Sunspot AR2713 and large Prominences | HA & WL | Quark
Posted: Sat Jun 16, 2018 2:22 am
Heya,
Well, despite nearly 2 weeks of doom and gloom cloudy skies here in "sunny" Florida during hurricane season, I got a moment of slightly hazy but relatively clear skies late in the evening between 5~6pm, so I ran out to my observatory and opened her up and was able to get some data for about an hour.
I quickly set up to do a mosaic with my short scope (Orion ST80) and a Quark. I mask the ST80 to 60mm (60mm F6.6) for better matching to the Quark's needs. I used the ZWO tilt adapter to eliminate newton rings which helped a ton with a good mosaic. I did 11 individual data grabs around the disc with generous overlap. These were later flat calibrated and stitched together into a mosaic to get a full disc at a decent scale and good resolution. Prominences were grabbed separately and added manually to appropriate locations on the disc. I think this may be the best full disc mosaic I've managed so far, with respect to not having gradients or obvious stitching issues (I think more overlap helps a ton with this).
For the higher resolution images of AR2713 and the larger prominences, I used a 120mm F8.3 refractor and the Quark.
Seeing was maybe a 2/5 during some moments, not bad for late day for me.
Equipment:
Celestron Omni XLT 120mm F8.3 refractor
Orion 80mm F5 refractor (masked to 60mm F6.6 for imaging with the Quark)
Baader 2" UV/IR Cut Filter (ERF)
Daystar Quark Chromosphere (HA; 656.28nm Filter)
Baader Solar Film & Baader Solar Continuum Filter (White Light; 540nm)
ASI174MM Camera
ZWO Tilt Adapter (to manage newton rings)
Farpoint dual saddle mounting
Orion Sirius Mount
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Typical view of Florida's sky during hurricane season:
Today's equipment, side by side for fast FOV and scale changing for imaging:
+++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++++++++++++++++++
Results from this evening.
Sunspot AR2713:
Very best,
Well, despite nearly 2 weeks of doom and gloom cloudy skies here in "sunny" Florida during hurricane season, I got a moment of slightly hazy but relatively clear skies late in the evening between 5~6pm, so I ran out to my observatory and opened her up and was able to get some data for about an hour.
I quickly set up to do a mosaic with my short scope (Orion ST80) and a Quark. I mask the ST80 to 60mm (60mm F6.6) for better matching to the Quark's needs. I used the ZWO tilt adapter to eliminate newton rings which helped a ton with a good mosaic. I did 11 individual data grabs around the disc with generous overlap. These were later flat calibrated and stitched together into a mosaic to get a full disc at a decent scale and good resolution. Prominences were grabbed separately and added manually to appropriate locations on the disc. I think this may be the best full disc mosaic I've managed so far, with respect to not having gradients or obvious stitching issues (I think more overlap helps a ton with this).
For the higher resolution images of AR2713 and the larger prominences, I used a 120mm F8.3 refractor and the Quark.
Seeing was maybe a 2/5 during some moments, not bad for late day for me.
Equipment:
Celestron Omni XLT 120mm F8.3 refractor
Orion 80mm F5 refractor (masked to 60mm F6.6 for imaging with the Quark)
Baader 2" UV/IR Cut Filter (ERF)
Daystar Quark Chromosphere (HA; 656.28nm Filter)
Baader Solar Film & Baader Solar Continuum Filter (White Light; 540nm)
ASI174MM Camera
ZWO Tilt Adapter (to manage newton rings)
Farpoint dual saddle mounting
Orion Sirius Mount
+++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++++++++++++++++++
Typical view of Florida's sky during hurricane season:
Today's equipment, side by side for fast FOV and scale changing for imaging:
+++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++++++++++++++++++
Results from this evening.
Sunspot AR2713:
Very best,