Solarmax 90mm, ZWO174, 1000 frames top 50%, Autostakker, IMPPG, photoshop, colors inverted
taken with a solarmax 90mm and ZWO174 astro camera. about 1000 frames, top 30% frames stacked
Best Lunar 2017 | Lefty Curve Creator
Was any post-processing done to this?
Yes, quite a bit, firstly the actual picture only captures about 0.012% of the visual light (Ha wavelength) so there is no color. Secondly it is a mosaic of the sharpest part of the 300 sharpest frames. then you sharpen that further and bring out contrasts using a special program. When that is done you bring out the colors using photoshop.
Shot this video through my solar telescope. Those towers of churning plasma are over 30,000 miles tall!
I went to a local park yesterday, set up my solar telescope and tracked the sun for about an hour and a half in moderate seeing conditions, taking a picture every minute and a half or so, to produce 60 images. This is what’s called a prominence, or a cloud of hydrogen plasma floating over the surface of the sun, but anchored in place by magnetic fields. You can see even a common feature such as this is so dynamic. This region of the sun is called the chromosphere, and sits above the visible surface. While being less dense than the plasma in the photosphere, it can reach temperatures of 20,000 C or higher!
This is so nice.
Photographer Catches the ISS Crossing the Sun and Moon
Registered: 12/15/2010 Location: – Mood: – Member is offline.
posted on Dec, 31 2020 @ 01:46 PM
link to this post
Came across these and thought i’d share here. An astrophotographer from California has taken a couple of amazing photos of the International Space Station in front of both the sun and the moon. The station only transits between the earth and both moon and sun for only a few seconds from Earth’s perspective every day. So just the timing for the pictures is pretty incredible by itself.
I don’t really know what else to say other than that the pictures are fairly breathtaking.
Photographer Andrew McCarthy is known for shooting incredible astrophotography images from his backyard in Sacramento, California. He recently added two more jaw-dropping images to his portfolio: ultra-clear views of the International Space Station (ISS) crossing the Sun and Moon.
Given that the ISS whizzes across the Sun and Moon in less than a second from the perspective of someone on Earth, capturing a clear view of the transit is not an easy thing to do.
McCarthy first managed to capture the ISS transiting the Sun on Tuesday, October 6th.
“This shot was captured simultaneously with two scopes, one with a white light filter for ISS details and one with a hydrogen-alpha solar telescope for surface details,” McCarthy writes. “By blending the images together I get a crisp, detailed snapshot of the transit.”
The following week, on the morning of October 14th, McCarthy captured the ISS crossing the face of the Moon.
“[A]fter spending hours scouting for the right location, I set up my gear on the side of a road hoping to capture something I’ve never seen before. The ISS, illuminated by daylight, transiting a razor-thin crescent moon,” McCarthy writes. “Something about the way the illuminated ISS straddles the crescent gives it a sense of depth lacking in my previous transit shots.
“This was captured by recording high framerate video during the pass, and stitching together a full mosaic of the moon after the pass was completed, which was then blended with shots captured before the sun rose to get the ‘Earthshine’ you see on the dark side of the moon.”