matt_baker

1 hour ago, Simon Dunsmore said:

Hi Matt, Thanks for your reply. So do you use this in a weatherproof box!? 

I don't have that exact model, I have the smaller brother so it fits in the box with loads of room to spare

I've got one and that works fine. I use an 18m mains extension reel with an RCD on the mains plug itself. There's only a tiny bit of reel left when unwound. AFAIK because we live in the UK, I doubt it'll ever overheat, I had that worry but I found even when it was inside and I was taking dark frames for hours in a room that was about 15 degrees, it never got that warm at all, although saying that, not everything was running, just camera and RPi. I guess it depends a lot on how much power you pull

Had another shot at this data. Tried to not go so hard on the saturation this time and tone down the Ha a little as not to overpower the image. Zooming in really shows off the core and I focused on the dust lanes more as well.

Workflow all done in PixInsight.

RGB and Ha:

Crop - RGB Combine with Ha - DBE - PMCC - 0.5x SCNR - TGV - ArcSinStretch

Lum:

Crop - DBE - Decon - TGV -  ArcSinStretch - Starnet - Curves - LocalHistogramEqualisation  - UnsharpMask

LRGB:

Linear fit Lum with RGB - Combine - Curves - Saturation - Export

Edit: Brightened background slightly and galaxy

2 minutes ago, ollypenrice said:

Where is this noise people are discussing?

Olly

There's not much noise at all but mure denoise works with the sensor's characteristics to perform noise reduction using sample flats and dark frames. It can often give nice results if used correctly.

I think a great idea for those who want to use MureDenoise in PixInsight for linear noise reduction would be to provide the stats by taking a flat and a dark for each filter then using MureDenoiseDetectorSettings script

Cheers, Grant. Seems much better now, no need to apologise

Matt

Second full attempt at the data which I've just finished.

May edit when I do incremental upgrades

Matt

First attempt at this data. Again, really clean so thank you FLO and IKI.

I did have a slight issue with the Ha in that I couldn't get rid of a gradient that's faintly present in the image.

Things to work on next is trying to not destroy the star colour but I'm happy with the rest

Good luck everyone!

Just wondering if anyone else is getting issues with a radial Ha gradient? I can't seem to get rid of it in DBE at all

Someone's selling one on a Facebook group if you have it

The Soul Nebula in HOO

Acquisition:

Ha: 48x300" @ 139 Gain 21 Offset

OIII: 57x300" @ 139 Gain 21 Offset

Edited in PI

Do you dither?

Thanks, everyone!

1 minute ago, vineyard said:

Very ghostly - would be a great Halloween image as is.  Is this a mosaic btw?

It isn't actually, just one whole frame!

1 minute ago, GiorgioF said:

Excellent! I love the sharpness and the amount of detail. Surely your sky is better than mine (bortle 8).

I'm taking it with almost same setup but with the 80mm triplet but can't get the same sharpness. I hope you will add some O3 and S3.

 

Thank you! I live in a bortle 5 although there are quite a few LED streetlights around and yes, I'll certainly be adding OIII and SII once the Moon finally disappears

Soul Nebula in Ha

49x300"

TS-Optics 90mm Triplet CF

ZWO ASI 1600MM Pro 

Skywatcher HEQ5 Pro

C&C welcome!

Matt

How does all of this sound?

https://www.rothervalleyoptics.co.uk/mercury-138v-15a-bench-top-power-supply-unit.html

https://www.firstlightoptics.com/astronomy-cables-leads-accessories/lynx-astro-silicone-power-cable-25mm-dc-jack.html (Ring tongue variant)

https://www.amazon.co.uk/Dri-Box-FL-1859-285-Weatherproof-Black-Medium/dp/B00D7DU6YW/ref=sr_1_5?crid=17J8AUOD94C5W&dchild=1&keywords=ip55%2Bweatherproof%2Bbox&qid=1608636293&sprefix=ip55%2Caps%2C160&sr=8-5&th=1

Mains extension plugged into an RCD plug reeled up the garden to the PSU in this IP55 box and outputted through the 2.5mm cable into the DCHub 2

2 minutes ago, teoria_del_big_bang said:

Then as I said put the extension inside a splashproof box that is plenty big enough to leave enough air round then to stop over heating, plug into a RCD. My suggestion of getting an outdoor socket near to where you image properly wired by an electrician to the consumer unit is just a better idea.

It is difficult for me to recommend this way of doing things as whilst I consider it safe if via an RCD many will shoot me down and say I should not be recommending this as electricity is dangerous - which it is if care is not taken.

I use a 240V ps in an home made box and will take a pic to show you. It is home made but I have never had any moister get into it and is big enough to house a big 12V power supply and extension for any other smaller supplies (such as the RPI) to plug into. Only thing is I do have a proper outside socket next to the mount but this just means I do not have the extension issue and the RCD is in the consumer unit.

 

Oh and when using an extension always unwind all the lead, if a 25M extension and it needs to me 15 m do not leave 10M wound on extension. Even with small currents you would be amazed at how hot it can get.

Steve

That'd be great if I could take a look. And my extension is almost fully unwound, I think about a meter just maybe 2 is left over

3 minutes ago, teoria_del_big_bang said:

You can put the power supply AND extension in a weather resistant box like this:

Outdoor IP55 Power Enclosure

Then connect the extension into a RCD adaptor:

RCD

Note that theIP55 box is not totally waterproof but more like splashproof and should not be left out in rain but then I assume you would not leave your scope out if rain was immanent either.

The RCD is essential for safety.

Much better is to get an electrician to fit a proper outdoor socket close to where you intend to image and that will go to an RCD in the consumer box. The power supply still really wants covering with an IP 55 type enclosure and make sure it is big enough to leave pleanty of air around the supply so it does not overheat.

Steve

 

My issue is that I have to image further up in my garden and then I'm not close to any sockets. My mains extension runs about 16m to the equipment as to why I need such a long cable but if I can have the PSU in a box outside, with the mains extension running to it so I can have a shorter cable and not have significant voltage drop, that would be great. Of course, the scope would never be outside when it's about to rain and it takes me around 15 mins to pack everything up. My main concern I guess would be moisture and how that could affect the PSU, as well as heating issues being inside a box

Matt

Thank you all for your input.

How unrecommended is it to put the psu in a box outside with the equipment connected to a mains extension lead and have a 2-3m wire to the DSD DCHub?

Matt

1 minute ago, michael8554 said:

We need to know:

1) how long is the cable run from the bench supply to the power hub ?

2) How much current does all your equipment pull ? That's the important figure, hopefully not more than the hub and bench supply will take.

3) Do you know what kind of plug the power hub requires ?

Michael

The cable needs to be about 16-17m. I have the HEQ5 running at 12v 3A max, 1600mm at the same I think, raspberry pi 4 and a dew heater. It has the black and red terminals. I can power the dew heater separately if necessary

Matt

I'm basically a dummy when it comes to electronics and because I'm having communication issues due to a power brick, I'm wanting to get a 13.8v bench supply but I have no idea how to get from the black and red terminals into a DC cable for my power hub. Can anyone help with this?

 I was particularly looking at a mercury 13.8v 15A supply

Also the power hub I have is 12v 10A rated. Does it only pull however much it needs and 15A won't be too much for it?

Matt

My best guess would be to extract the green from every single one using a program then using AIJ with those?

I saw your other post, maybe I can look at your csv just after your multi aperture and see what I can come up with?

Also I could look at all of your data myself if you upload the files?

I'm having this exact issue.

Did you ever solve it blinky? 

I'm running it headless on a RPi 4 so I'm not sure how to change usb port settings on Linux

Congrats to all the winners! Fantastic job

Last attempt(s) before it ends