Astrophotography

Saturn, 10 July 2018

Last night I finally got the ADC ‘dialled’ properly and also got the knack of the edge-detect focus tool in Sharpcap, which works really well for Saturn, which has lots of edges to detect!

I also finally worked out that to get good results with x3 drizzle in Autostakkjrt!3 you must use un-debayered data, as otherwise it just enhances the bayer pattern.

I’m pleased with this one, my best ring detail to date!

 

Saturn 10 July 18
Saturn 10 July 18

Sun 09/07/2018 – – – New facula

Yesterday, Spaceweather said:

“WHITE SUNSPOT: This weekend, observers of the sun have been waiting for something to emerge over the sun’s eastern limb. We knew it was there because of a farside solar flare on July 6th. Today it arrived, and it appears to be a white sunspot.

The correct name of this phenomenon is “faculae.” It is a cousin of sunspots.

Regular dark sunspots are magnetic islands on the surface of the sun. Magnetic fields in these areas are thousands of times stronger than Earth’s magnetic field. Sunspot magnetic fields are so strong, they block the flow of heat from the nuclear furnace below. They appear dark because they are relatively cool compared to their surroundings.

Faculae are also made of magnetic fields. However, the magnetism of faculae is concentrated in much smaller bundles than in sunspots. Instead of blocking heat from below, they essentially form corridors that allow us to see into sun’s hot interior, creating an apparent bright spot on the surface of the sun.

It is still possible that a dark core will follow these faculae over the limb in the hours ahead, establishing the region as a normal sunspot group. Stay tuned.” 

 

This is what it looked like this morning.

Nice prominences and “filaprom” too.

For some reason, I reckon this one looks better in colour.

Noctilucent clouds over Streethay

Yes, the same ones Andy has also posted!

Woke up, looked out the bedroom (back) window… could see them bright as anything. Shot round to the front and grabbed camera. Couldn’t get the angle from my office window. Tried Julie’s office window (also on the front), but no joy… Headed downstairs in dressing gown and into back garden. Pulled wheelie bin out (for small tripod) but still no joy! Opened side gate and plonked tripod on car roof and started taking pictures…. rang Andy’s mobile – no joy, rang house number…. got a pretty vacant “…..heeellloooo…”. I think my curt response went something like…” Andy, it’s me, you need to get your arse outside, Noctilucent clouds..!”

This is a 1 second exposure @ f/2.8. ISO 200, 48mm focal length was shot at 3.30am on Friday morning 6th July 2018

My trusty old full frame Nikon D3 on a small travel tripod, itself sitting on my car roof.

Damian

Off the iPhone6…

Noctilucent clouds galore!

Ean Ean and I viewed an amazing display of noctilucent clouds which was seen best out of our bedroom window (I feel like Roger although I did have window open) in the centre of Lichfield today at 3:30am. The pictures below were taken with either my Samsung S7 phone or Sony A350 DSLR. It was morning twilight and getting quite bright sky in the west just before sunrise with Belt of Venus visible.the clouds extended from approx. 15-60 degrees altitude – over massive area from almost direct north to nearly direct west.

I need to thank Damian who called Ean Ean and myself to make us aware of this incredible display and allowed us to see our first good noctilucent clouds.

Incredibly exciting!

Andy