[Dr Paul Leyland]

Thanks. I have the GIMP and have used it in the past for minor image manipulation but never thought of using it for making animated GIFs.

I will give it a try but find its complexity and learning curve intimidating. 8-(

[Dr Paul Leyland]

David Swan wrote:

Paul,

I think that PIPP, designed for lucky imaging crowd, can do animated gifs. The creator says it can be enjoyed with WINE.

https://sites.google.com/site/astropipp/

David

Thank you, I will check it out.

The reason for my request is now public at https://britastro.org/observations/observation.php?id=20220819_140838_474d0d65ddd59b61

Paul

[Dr Paul Leyland]

What a coincidence, I have just been looking at JWST! Pictures to follow.

[Dr Paul Leyland]

The “blue belt” is also known as the “Earth shadow”. It can be very impressive at times.
The “belt of Venus” corresponds to the red shades seen towards the opposite direction in the sky. It comes from back scattered red light.

[Dr Paul Leyland]

Looks like it came down near Borneo.

If so, I hope the local authorities issue the Chinese with a fine for littering.

[Dr Paul Leyland]

Please keep up observing and the pattern matching.

It seems very likely to me that outbursts are somewhat predictable, it is just that we don’t yet know how to predict them with much reliability.

[Dr Paul Leyland]

Implementation: extra mass, cost, complexity and failure modes all have to be weighed against the benefits of adding them.

Not worth it, in other words.

[Dr Paul Leyland]

Oh no, not again. You can not be Sirius!

Get your popcorn ready. This should be entertaining when the other astrophysicists start laying into it. (Though the claimed 5.1σ is interesting.)

[Dr Paul Leyland]

I found that but haven’t reported it. Earlier today I found some broken image links, which I have reported. You may wish to check the links in your own pages.

[Dr Paul Leyland]

TLDR:

Oh my God! It’s full of galaxies!
Water, water every where but nor any drop to drink.
An elliptical galaxy is almost invisible because it doesn’t have any dust.
Two stars in a ring nebula: you can not be Sirius!
Galaxies sneak into the zone of avoidance when they though no-one was looking.

[Dr Paul Leyland]

Wow! Even the particle physicist start talking about possible discoveries at that significant.

[Dr Paul Leyland]

Thanks Alan.

Is it on-line or on-paper only?
I will go looking for it.

Paul

Added in edit: found it on-line.

• This reply was modified 3 years, 6 months ago by Dr Paul Leyland.

[Dr Paul Leyland]

Alan, please do!

Paul

[Dr Paul Leyland]

Dr Paul Leyland wrote:

Now to track down the Patent number …

I have not yet found the patent in the WIPO database but this link turned up

https://www.grelly.uk/itm/genuine-27-inch-antique-w-ottway-1917-gunsighting-ships-navy-marine-telescope-142854086185

Looks like my telescope may well be from the Royal Navy. If so, it would be nice to find out which ship to which it was fitted.

[Dr Paul Leyland]

Hi Paul & Alan,

I will be restoring it though it may take me some time to clean and remount it.

There are a few inscriptions, the easiest to read being “TURN TO CHANGE POWER” and “TURN TO FOCUS”. Part of the latter is visible in the image above. Neither of these give much clue to the provenance.

You are quite correct at suggesting Ottway & Co. however, It is fairly easy to read, though the black paint needs renovation, “GUNSIGHTING PATENT V.P. <illegible> W. OTTWAY & CO. LTD EALING 1912”. Another inscription is “PATT. G328Y” and a series of numbers “5 7 9 11 13 15” which are undoubtedly the magnifications available. The only other inscription is “W A/T” where the W is twice the height of the A and the T, which themselves are spaced vertically with a horizontal bar.

It is possible than <illegible> may become readable with some careful photography under oblique lighting and with image processing of the result.

Now to track down the Patent number …

[Dr Paul Leyland]

Andy Wilson wrote:

It is possible some prefer not being left logged in permanently

On some fora I frequent it is possible to remain log in and and also possible to tell the browser not to save the credentials. That would appear to satisfy both camps.

[Dr Paul Leyland]

Maxim Usatov wrote:

Sorry, always have something more to say after I hit the “Send” button (and there’s no “Edit” anymore for some reason).

Yes, this is something else I would like to see. It is possible to edit for a short while after submission but quite a few times the edit functionality times out to early for my liking. It would appear I am not alone.

Could the period be extended to, say, 24 hours?

[Dr Paul Leyland]

Seconded, though it affects me a little less because I tend to leave the tab open 24/7. That’s feasible on a desktop machine in a private home.

[Dr Paul Leyland]

Hi Dominic

I’ve mentioned this before but it bears repeating. As this text is being entered I am helpfully informed You can use BBCodes to format your content.

There is no indication what BBCodes are, nor any obvious way of using them.
IWBNI we could have a few buttons which, when pressed, underlined the selected text, inserted a hyperlink and so on.

As you can see, I have memorized a few of them …

Added in edit: even then, I was unable to work out how to use the [ URL ] tag properly.

• This reply was modified 3 years, 6 months ago by Dr Paul Leyland.
• This reply was modified 3 years, 6 months ago by Dr Paul Leyland.
• This reply was modified 3 years, 6 months ago by Dr Paul Leyland.

[Dr Paul Leyland]

You’re welcome.

Now wondering if that sort of very detailed TS photometry could be used to predict the time of an imminent outburst perhaps to within a few hours. I doubt many people have tried to do it before.

[Author]

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