Dave Smith

More images from today on my website.

Dave

Your next task is to capture an image every minute for half an hour and then combine them to make an animation.

Dave

They are rather nice. Great stuff.

Dave

Very nice. Did you mean 16th?

Dave

They came out well.  

Dave

Thank you Gordon and everybody else. You are right, technology has greatly improved the image quality in all aspects of astrophotography. When I used to teach, some years ago, we had astro photos taken by professionals using large scopes, used as posters that were no match for most images posted on here nowadays.

Dave

Great to see the Sun again. I did manage to get some yesterday but it was a bit of a challenge.

More images from today can be seen on my website.

Dave

Well done Steve, very nice. You were lucky, I saw the Sun for about 20 minutes while it was behind a large tree prior to setting!

Dave

Super detail, great stuff.

Dave

Excellent  

Dave

Brilliant Nigella, well done.

Dave

Very nice. It's a good time to be getting into Halpha as we are heading into the next maximum.

Dave

That is superb Steve.  

Dave

I do like that detached prom.

Dave

I would love to have captured a full animation on Tuesday but (1) I didn't know it was happening (2) the clouds kept interrupting which prevented regular timings, so I did keep taking images at random when the cloud permitted. From those these four do give a view of the event. Rough measurement indicates to me that it was erupting at probably in excess of 100 km per second.
Maths at the bottom.

Size of Earth 4mm
diameter of Earth 12 740 km
Distance on screen CME moved in 33 minutes 70mm
So Speed of CME = 70/4 Earth diameters in 33 mins = (70 X 12740)/(4 x 33 x 60) km/s = 112 km/s
Dave

You are so lucky Nigella to catch it from the beginning. I was out before it started and did an image of the whole Sun but no sign at that stage. By the time I had gone round the limb imaging the small proms I came across it when it was quite huge so like you continued to take many images. Also, like you it was my first CME. We are just so lucky and privileged to experience that.

Dave 

I also have many images of this decaying but still to be processed.

They may eventually appear on my website https://mysolarpics.co.uk

Dave

White light with Megrez 90 and Lunt wedge

Hydrogen Alpha through Lunt 80mm

Dave

Very nice 👏

Dave

That is impressive. I did get one in April but no exhaust trail.

Finally have it the right way up.

Dave

Well thank you very much every body for you advice. I seem to be back in business, the new lead seems to have much better contact with the Quark.

The lead a microB to standard USB came as a pack of 3. https://www.amazon.co.uk/gp/product/B07HPZVT2K/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1  I only need the one so if any one who gave advice would find one useful then send me a PM and I will happily post one FOC.

Here is my first image of this morning. I was very lucky with that arc prom as when I came back to have another look it was gone.

Dave

25 minutes ago, Paz said:

I was worried about the usb connection flapping around so I got myself a right angled usb which is easier to keep still (you have to check though that it's the right orientation of right angle so that it sends the line the right direction).

I do like that. Great idea and looks far more secure.

Dave

1 minute ago, Jonk said:

If you regularly unplug it, then my money's on the potential that the usb socket might be faulty.

I have a quark but not checked to see if it can easily be opened to replace the socket.

This issue appears on phones, usb speakers, rechargeable torches etc all the time, unfortunately.

If a new lead does not solve it then that will be my next thing to try.