Viewing profile — cconstantine
cconstantine
HN member- Joined
- Thu, May 29, 2008, 3:22 AM UTC
- HN karma
- 543
- Public activity
- 171 items
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About cconstantine
Recent public activity
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Comment #44660001
> why not put a whole bunch of filters in front of a mono camera and get much more frequency information? Just rgb filters aren't really going to get you anything better than a bay…
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Comment #44659868
For the vast majority of things in the sky, they'd see black. This stuff is incredibly dark, and we need hours of exposure time to get enough signal. Even after hours of exposure t…
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Comment #44084544
The problem is that the noise can swamp the signal. Another example of this would be doing astrophotography during the day. The sun doesn't block anything, it just makes the sky gl…
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Comment #40215519
How about a talk by an expert on the topic of noise in an image: https://www.youtube.com/watch?v=3RH93UvP358
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Comment #40215303
I don't remember exactly what I did, but I do remember running into that kind of problem. I probably used starnet2 to remove stars before doing much processing, and recombining sta…
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Comment #40213020
I've seen some pretty impressive stuff done with a relatively cheap / simple DSLR setup. The basics of astrophotography aren't that expensive, but it gets exponentially more expens…
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Comment #40212900
Haha, yeah. I could go on for hours. I've had to learn that most people really don't want a lecture series on the finer points of astrophotography. Seabass's comment was pretty muc…
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Comment #40206558
It's a wonderful niche/technical hobby, but it's not cheap. You could even say it's "pay to win". I didn't buy all of my stuff at once, and I had some mistakes, but I'd guess I use…
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Comment #40206541
Oh nice! Except for Alnitak (I love me some spikes), I like yours more.
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Comment #40205301
Well, if you think photography is too easy you could try taking up astrophotograhy :)
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Comment #40205285
Thanks, but it if you look closely you'll see that the Webb image has almost an image worth of detail within each pixel of my image.
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Comment #40205270
Thanks! I hadn't gotten to writing this out, but you've pretty much nailed it. > They most likely used a secondary camera whose sole purpose is to guide the mount and keep it point…
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Comment #40204187
Absolutely incredible. For a little bit of context for how impressive this is, here's my take on it with a consumer grade 8" Newtonian telescope from my backyard: https://www.astro…
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Comment #37138854
I've been using terraform for 10-ish years, and this is very much not how I feel about it. Terraform absolutely makes life easier; I've managed infrastructure without it and it's a…
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Comment #36864053
Yes, you can :) It all depends on the properties of the signal and the noise. In photography you can combine multiple noisy images to increase the signal to noise ratio. This works…
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Comment #36604092
I think this is a really important comment, and until about 6mo ago I would have completely agreed with you. I even made these same arguments with my coworkers; it's just cooperati…
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Comment #36035225
In a language like C that isn't really possible because the language can't keep track of all of the places that memory address is stored. If malloc were to return something like an…
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Comment #33254732
Amateur astrophotographer here. What I'm going to talk about is true for my rig. The JWST is astronomically a better telescope than what I have, but the same basic principles apply…
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Comment #29733048
Yes, they can be. Self-diagnosing isn't a great idea; lots of non-depressed people have some symptoms of depression. It would probably be a good idea to find someone to talk with t…
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Comment #29676250
Every place I'v worked has celebrated fixing things that have broken, and forces engineers to fight for prevention. It's not exactly celebrating things breaking, but it sure looks …
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Comment #29658687
> This means no one can even tell you were bankrupt after 7-10 years, which is pretty incredible feature for borrowers. This is absolutely not true. The record of your bankruptcy l…
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Comment #29658623
I'm going to assume you're a business person. Commerce is vulgar, but as long as you're making (b|m)illions off me could you let me do my thing? Stop taking things that work for te…
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Comment #29658538
I'm not saying bankruptcy is bad. It's a necessary escape hatch for the credit industry, and shouldn't have the stigma it does. maunder is absolutely right; the consumer credit ind…
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Comment #29658228
Creditors love people who have recently filled for bankruptcy. They're vulnerable, known to be bad with money, and can't file again for a number of years.
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Comment #29658215
This is a lie that needs to die. Bankruptcy might get removed from your credit report, but the public court records never do. Anyone who does a credit check can (and will) search t…