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#1
Astrophotography / Re: Sun in WL - AR13615 from P...
Last post by Carole - Mar 26, 2024, 15:06:02
Great Result Roberto

Carole
#2
Astrophotography / Re: Moon with Dwarf2
Last post by Dave A - Mar 26, 2024, 09:40:47
Nice image Simon 

#3
Astrophotography / Re: Sun in WL - AR13615 from P...
Last post by Dave A - Mar 26, 2024, 09:38:53
Roberto

great detail in the image
#4
Astrophotography / Sun in WL - AR13615 from Petts...
Last post by Roberto - Mar 25, 2024, 17:03:10
Hello All

As per my message in WhatsApp, taken on Saturday morning:

https://www.astrobin.com/nwep18/B/

Best 125 out of 5000 video frames.  Taken with 10" f/20 Maksutov and ASI174MM camera.  This has been a very active sun spot. It produced the increased aurora activity over the weekend and now.  It's a shame we have had such poor weather and seeing (and full Moon to boot).

Roberto

#5
Astrophotography / Moon with Dwarf2
Last post by Simon Smollett - Mar 24, 2024, 18:18:02
Taken on March 22nd, with Dwarf2 and it did 73 stacks from about 540 FITS files.

#6
Astrophotography / Re: Sporadics, night of 3rd-4t...
Last post by Rick - Mar 07, 2024, 13:58:30
Quote from: Hugh on Mar 07, 2024, 10:46:30Although you say from your Global Meteor Network, what we see here is just what your camera(s) have caught in the sky above you on that one night (10 hour period) when no major meteor showers were expected?

Can I also query that the meteors are the lines we see, as opposed to the points of light which I presume are stars?

It's a stack of one night's captures, using only frames containing meteors from my two Global Meteor Network cameras here in Dursley. The stack is done by rotating each frame so that the stars stack as points. It only works well because my two cameras are fairly close to one another. If one meteor has been captured by both cameras then the tracks will be in the same place. You couldn't do a stack like this using results from two cameras any distance apart, as the meteors would appear in different places. It's those differences in view from cameras in different places that can be used to detemine a meteor's path, and therefore trace back and determine its orbit.

Anything in the sky (rather than part of the local landscape, like the trees or parts of the roof that are in the cameras' fields of view) that's not a point is a moving object. Because the stack has only selected frames containing meteors, most of those moving objects will be meteors, but the system may also image satellites, planes, bats, birds, moths, and just about anything else in the sky that is bright enough to be seen. The processing is pretty good at leaving out frames that don't contain meteors, but before I make one of these tracked stacks I also go through the images to remove any the system has falsely identified as meteors. Of course, some frames that do contain meteors could also contain satellites, planes, or anything else.

Satellites and meteors can appear quite similar on the stack, but are usually moving much more slowly, and may last for more than a whole frame, in which case they'll appear to start and stop very suddenly, where meteors usually brighten and fade (if they don't explode). Planes usually look like rows of dots. Bats, birds and moths often have paths that aren't straight.

There are always sporadic meteors. I don't think the meteor flux was unusual on the night in question. It was just interesting because there are no well-known showers at the moment, so all the meteors caught were provisionally identified as Sporadic. If you want to burrow through data (mostly) collected from the UK then take a look at the UK Meteor data archive.

Here are the orbital analyses from that archive for a few of the meteors in this stack:

https://archive.ukmeteors.co.uk/reports/2024/orbits/202403/20240303/20240303_193718.318_UK/index.html
https://archive.ukmeteors.co.uk/reports/2024/orbits/202403/20240303/20240303_223548.618_UK/index.html
https://archive.ukmeteors.co.uk/reports/2024/orbits/202403/20240304/20240304_001042.523_UK/index.html
https://archive.ukmeteors.co.uk/reports/2024/orbits/202403/20240304/20240304_031255.648_UK/index.html
https://archive.ukmeteors.co.uk/reports/2024/orbits/202403/20240304/20240304_045110.294_UK/index.html

On each one you'll see a collection of the images that contained that meteor, and a variety of diagrams concerning the orbital determination.
#7
Astrophotography / Re: Sporadics, night of 3rd-4t...
Last post by Hugh - Mar 07, 2024, 10:46:30
Hi Rick

Sorry if this seems a basic question but can I just confirm the data we are seeing here, please?

Although you say from your Global Meteor Network, what we see here is just what your camera(s) have caught in the sky above you on that one night (10 hour period) when no major meteor showers were expected?

Can I also query that the meteors are the lines we see, as opposed to the points of light which I presume are stars?

Thanks

~ Hugh



#8
Astrophotography / Sporadics, night of 3rd-4th Ja...
Last post by Rick - Mar 06, 2024, 19:01:40
It's sporadic season, when there are no major meteor showers. This is a tracked stack of the meteors caught on the night of 2024 January 3rd to 4th by my Global Meteor Network cameras. It was a reasonably clear night, with nearly ten hours of clear sky. One camera caught 66 sporadic meteors, and the other caught 67. Neither camera caught any meteors from major showers because there are none at this time of year. However, the Global Meteor Network is capturing a lot of meteor data, and analysis of that data does occasionally lead to the identification of previously un-known meteor showers.


Gallery Link
#9
Astrophotography / Gecko Nebula LBN437 combined ...
Last post by Carole - Feb 29, 2024, 10:20:27
Not done any imaging since October for a number of reasons, so have been looking at old data and tarting it up.

This is the Gecko that I took in 2021 from Home 6 hours:


This is a widefield shot I took at Cairds in 2023 with my Samyang lens 135mm, 4hours 25m.



This is now the combined and revised image using the date from both the above so added together comes to a total of 10hours 25mins.

#10
In the Media... / Odysseus probe moonwalking on ...
Last post by Rick - Feb 27, 2024, 21:33:35
Odysseus probe moonwalking on the edge of battery life after landing on its side

Intuitive Machines' Odysseus lunar lander is facing another countdown. This time the question is how much longer it can continue to operate until it exhausts what remains of the battery life.

On Monday, flight controllers reckoned they had until Tuesday morning before communication with the lander ceased. At the time of writing, controllers hoped there might be as much as 10-20 hours of battery life remaining.

More: https://www.theregister.com/2024/02/27/odysseus_battery_life/