Alien 13

I see these units especially useful for capturing meteors etc considering the often reasonable results you get from doorbell cameras ...

Alan

I had always thought that the Universe was tiny, smaller than a photon or electron...

Alan

22 minutes ago, ollypenrice said:

So that NOTHING! Brilliant, we got there. But... erm, what does it look like???

lly

 

I want to know how big or small NOTHING is too. 😋

Alan 

I would be up for a dip into outer space for a few seconds, cant be worse than sticking hour arm into a hot oven or a freezer, things we do most days or even a flame..

Alan

22 minutes ago, markse68 said:

It's very common with switching psu's with their high frequency switching and floating isolated outputs- a phantom coupling somewhere. We use meanwells a lot at work- decent brand but if you touch between 2 systems you can feel a high frequency "hum" and if you touch with your elbow, a tingle. With a meter it measures 60V ac. I don't think it's anything to worry about in terms of safety as there's no current and if you connect the DC GND to mains earth then it's not isolated anymore

Mark

I treat this annoying tingle the same way I would noise in one of my Valve amp designs that have separate ground and signal earths tied together with a 1-10 K OHM resistor with a 10 nano farad cap in parallel with it. 

Alan

I remember shortly after my stroke many years ago that I began to smell colours which lasted for a few years and have wondered if for example an Alien species that processed the EM spectrum as sound or scent etc could develop a greater understanding of the Universe or Math's than us or is visualization on a PC screen or book the only way.. So complex math's without numbers or symbols.

Man created the universe we see today, without us time has no meaning so an infinite number of universes may have existed before this one..

Alan

I understand the need for these things, I live in a UK city not far from the center and cant get full fibre broadband for another 7 years so could be tempted 😋

Alan

My needs are simple, a 70mm refractor with fixed 6x magnification and a correct image view with internal focusing, it should have zero CA or other defects and be nitrogen purged... It should also not have a commercial eyepiece in its construction as they all have some issues but should have a soft rubber eyecup assembly. The military have some and I was lucky enough to look through one a few years ago and nothing today comes even close to the clarity and colour of the pinpoint stars.

Alan

I am fine, got a tinfoil hat 🤣

Alan

26 minutes ago, StevieDvd said:

Is that just the GPU?

My GPU score is 554 Intel UHD Graphics 630 - in low 😢

Just the onboard RDNA 2 graphics GPU score integrated within the Rysen 6900HX processor.

Alan

27 minutes ago, ONIKKINEN said:

Quadro series cards are terrible value for money, you would be better off with just about any normal GPU instead. CUDA cores exist in all Nvidia GPUs, its just their own technical term for something the GPU architecture uses, dont worry about it too much.

Take a look here for GPU benchmarks, higher number is better: https://www.videocardbenchmark.net/high_end_gpus.html

Maybe an RTX 3070? Even the RTX 3060Ti would be quite nice and not that expensive. I would advice you to not spend as much as you were planning to as the highest end GPUs are not good value for money. I have an older GTX 1080 which youll have to scroll down to find in the list, but it does all the russell croman actions just fine. Star removal less than a minute every time.

Just ran passmark for a laugh on my Mini PC with integrated graphics and got 5364..

Alan

Samyang 14mm f/2.8, manual lens but one of the best or the 28mm version.

Alan

The ideal way of supplying 12V over long distances is by using the 4 wire method, two current carrying wires and two thin sense wires which all go to the mount, unfortunately few commercial power supplies have this. The method you are using does the same thing but with 4 wires the PSU senses the load so adjusts the output voltage accordingly showing a constant 12 or 13V on the display even though the actual output wires might be a lot higher.

Alan

2 hours ago, vlaiv said:

I can see two benefits with this design:

1. No need for careful spacing

2. Tilt is effectively removed from the equation

 

It reminded me of your left field design for a focuser.. Good to have new ideas.

Alan

23 hours ago, DaveL59 said:

ow what is wrong with the british press?

To the express is one of the garbage bin/budgie cage lining variety I guess...

I thought only the Guardian/Telegraph and Observer had that honor of lining a Budgie cage... its all they are good for..

Give me a proper newspaper any day 😀

Alan

3 hours ago, ollypenrice said:

I should have added that the lens was wide open at F2.

Olly

As it should be 🙂 Just need a second or third one now for a really fast system...

Alan

USB mini here too on the Canon 80D, do wish they would change over to USB-C that would also offer the option of powering the camera from a laptop etc..

Alan

1 minute ago, Phillyo said:

Located in the constellation of Auriga, the Flaming Star Nebula (IC405, SH2-229 or Caldwell 31) is approximately 1500 light years away. The Tadpoles (IC410) are located at approximately 12,000 light years, so despite looking like neighbours, these two are not.

Captured with the Samyang135, Risingcam IMX571c, Antlia ALP-T 5nm filter, EQ6r Pro, NINA, PHD2. Processed in Pixinsight. This is approx 14.5 hours of data. I'd like to have rotated the camera/lens 90 degrees for better framing but it's a faff so I didn't bother  

Thanks for looking.

I think the framing is perfect, a nice portrait of an Alien..

Alan

Nice work, without going down the rabbit hole of AP I do feel there is a real need for a small tracking mount dedicated for use with mobile phones. I have a dedicated video rig complete with external mics and a tiny pan tilt mount simply because of the advancements in phone technology..

Alan

7 hours ago, Elp said:

Looking at them, the Ryzen 9 5900hx mini pcs might be decent (the Ryzen 9 are faster than the equivalent intel which intel readdressed with their latest raptor lake processors).

I just bought a Rysen 9 6900hx powered mini running at 45 watts with a boost up to 65 watts and its fast, the integrated RDNA 680m graphics are on a par with a desktop GTX 1050 Ti card, it is also running DDR5 RAM..

Alan

3 minutes ago, AstroNash said:

Haha no I agree, but considering a computer wrote that. An amazing bit of technology!

The technology is amazing, must give it a try on the subject of time travel 😃

Alan

Looks good to me although I would only ever use a lens pen on a frac or camera lens..

Alan

Definitely stars and ideally with JWT spikes, not a fan of the star size reduction software either as it produces fakes....

Alan

I am amazed that we still allow excuses for failures these days, its not rocket science anymore its developing nearly 100 year old technology that we ought to have nailed by now. 

Alan