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Cambridge goes to lim 6.5, S&T to 7.6. You mention an atlas which goes deeper, so these may not meet your requirements.
I really like my Sky and Telescope Pocket Sky Atlas – you could get the Jumbo version which is simply larger format. I also have the Cambridge Star Atlas fourth edition by Wil Tirion. If you want me to send you representative pics of the charts, let me know.
You could simply describe the spectrum and make attributions to chemical composition. Rather than go the whole hog to object ID. And post your comment under the pseudonym Urbain Le Verrier.
You are quite right. Had not looked at that section until your prompting. Oops. Ah – this had been noticed after printing. You can download the one page PDF with the corrections from this website. Click on the publications tab.
You probably know this but I’ve just put the coordinates and time into MPChecker and it doesn’t output Neptune. I guess it is in the name.
Ignore some of the mess ASIcap has put into the FITS header. I usually acquire using Maxim, but I was experimenting with camera settings last night, and it is much easier in ASIcap. Mono sensor ASI178MM. 2.4um pix, 1.26″px. FL 392mm. C8 Hyperstar. Sub exp = 20s.
?Meteor
https://1drv.ms/u/s!Agvxu8wNOxpAgQiU7zZ-xLYBmUDN?e=4iTdAI
?Trail
Yes, of course. I’ll prep the bias/dark/flat calibrated FITS for you. I have been experimenting with higher gain, so the dynamic range is terrible though! Just post if there’s any other info you need. Suffice it to say, I have decided 180 gain with the Hyperstar / ASI178MM config is not a good idea.
Fantastic – I will be tuning in. My thanks to Nick and to all others involved in the technical aspects of setting this up.
There’s something rather terrifying about this image. Perhaps it is the impression of a widely dilated pupil that is disconcerting. It looks like the intro to one of those ‘behind the camera’ BBC documentary segments.
Indeed, Mercury is visible – so the eastern limb is at the top, I guess.
I am pleased to hear you observed the transit, Philip. The weather over the UK is not settled at the moment! My basic set-up was not up to showing the more subtle features on the solar disc, but I’m sure we’ll see drawings and images filtering through over the next few days that corroborate your obs. There certainly has been a dearth of sunspot activity in the past weeks! I just had to focus on the edge of the disc and hope for the best.
There are some nice images of the event captured by the atmospheric imaging assembly of the solar dynamics observatory here:
A bit of fun – here’s what I was seeing on the laptop at and around the critical moment! https://youtu.be/-ZnLqdqZ73g
Likewise, lots of cloud and very windy. Nightmare having to keep changing the exposure time in FireCapture. One frame – soon after ingress – with timestamp on image (the filename pertains to the avi).
The Hyperstar is out, secondary mirror in, focal reducer/corrector attached, telescope collimated & imaging of sun tested. Yes, I know where the north, south, east and west are now! Hope the weather cooperates…
Hello Philip,
Thanks for letting us know. The weather forecast is dreadful for NE England unfortunately. But if I do get a good photo…
David Swan
