There are several “AI” deconvolution tools to remove stars which work exceptionally well: two of the most popular ones being StarNet and RC-Astro’s StarXTerminator. I’m willing to bet that the author used the latter for star removal as it’s become something of a standard in the astrophotography world.
I used Astra on one of my old observatories (an aging Explora-Dome) and I can say it's definitely a very nice experience compared to "legacy" tools like ACP from DC3. That being said, however, it kind of sits on the lower end of functionality compared to existing commercial observatory control offerings like Starkeeper's Voyager platform, especially when it comes to advanced scheduling features and scripting. Still, for basic needs it's nice to have a decent open source alternative in a very niche ecosystem.
I think GP was mostly referring to astrophotography when it comes to light-polluted areas. I live in a bortle 9 area (downtown) and unless I bring out my 20" dobsonian I'm mostly visually limited to double stars, planets, bright clusters, and extremely bright emission nebulae such as M42. With modern LED broad-spectrum lighting, skyglow definitely becomes a major issue, especially for broadband targets like Andromeda.
However, I've been able to capture stunning images (and an APOD) even in broadband within my city using dedicated astro cameras and modern gradient processing techniques quite easily, so we're definitely living in the golden age for EAA if you'd consider that as an alternative.
Funny I should see this on the front page, since I’m one of the (likely) few lunatics on HN who rents a pier at Starfront. So far I can say that they’re definitely one of the better offerings when it comes to remote observatories. Shipping my gear and setting it up was a tad painful, but once everything is operational the rest is a breeze. Plus the onsite staff are very responsive when it comes to servicing my CDK (cleaning/upgrades/resets/etc.)
For those who want to try telescope colocation on a budget, they also have a relatively cheap ZWO Seestar pier option. I haven’t given _that_ a try yet, but I’ve heard good things about it on Cloudynights.
Funny how two people can hack two separate home phones to run DOOM without realizing it until after the fact. For perspective, I posted a blog article about modifying a CaptionCall phone to run DOOM at the same time [1] as this was posted! What a unique coincidence!
What are you referring to regarding pthread_create()? Last time I checked I thought that it would return an undefined thread* only when giving a nonzero return code, which while certainly isn't handled in a lot of multi-threaded applications could be checked before anything else is done with the newly created thread.
For a second I just couldn't believe this was real. Stephen Hawking was one of those people that inspired me towards a career in science, as well as a pursuit of discovering what mysteries of the universe I could uncover within my (cosmically short) lifetime. He did this not through some major life-altering speech I heard from him (although his talks and lectures were quite interesting), or through some grand quote that I read online, but rather through the fact that he carried with him the enthusiasm that comes with looking up, seeing a vast universe looming all around us, and finding that inner spirit--that inner sense of wonder--that drives us forward in an attempt to make sense of it all. Rest in peace Stephen Hawking; you will be missed.