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João Calhau

@astrocalhau.bsky.social

290 followers 110 following 1.8K posts

The second rock from grandpa. Astronomy from Alentejo🇵🇹 to the World. Lancaster Uni alumnus. Post-doctoral researcher at INAF, Italy. Likes galaxy evolution, AGN,SFR, and Universe in general. Personal account; Opinions my own. astrocalhau.wordpress.com

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João Calhau @astrocalhau.bsky.social · 8h

Pushed the Processing a bit more.

João Calhau @astrocalhau.bsky.social · 8h

Now if only my motor gets back from maintenance, so I can remount the Trident and use my big scopes as well. It is supposed to be in transit in the mail, but man the Netherlands has a crap tracking system...

João Calhau @astrocalhau.bsky.social · 8h

So there are black spots on the image that I don't think should be there. Still pretty pleased with the results. Hopefully next weekend I'll be able to do more imaging, now with a weaker moon glare. (6/7)

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João Calhau @astrocalhau.bsky.social · 8h

To finish the night, I went for the Monkey Head Nebula, with ~2.7h integration. This one was harder to equalise especially because, as with every time I target nebulae, the freaking satellites decide to show up. Also something went wrong with the flats. Suspect some images had dew condensation.(5/7)

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João Calhau @astrocalhau.bsky.social · 8h

So in all I got two targets: First, we have around 2h of M33, the Triangulum galaxy. As with the next target, equalising the background was a nightmare because the Moon wanted in on the fun. (4/7)

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João Calhau @astrocalhau.bsky.social · 8h

So I was testing new equipment off the bat, as it was also the first time I ever used an electronic focuser. Turned out to be very easy although I couldn't get the thermometer to work. Not critical anyway, as I spend the whole night next to the telescope anyway. (3/7)

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João Calhau @astrocalhau.bsky.social · 8h

That right there is a Ragdoll 17 Pro. An harmonic drive mount. Heard they could be finicky to control but I have to say, it is the first time I get proper good results with a mount out the box. Very impressed, very pleased. Along my 60mm Askar F, it was the best night I remember having. (2/7)

João Calhau @astrocalhau.bsky.social · 8h

Some of you may remember my Big Mount Woes. But you might not know I also had Smol Mount Woes. My SA GTi never worked properly. So I go a cat: (1/7)

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João Calhau @astrocalhau.bsky.social · 2d

My most recent example of this was Gaiman. (I don't care enough about the Fifth Element to be dismayed for this information).

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João Calhau @astrocalhau.bsky.social · 2d

Jesus christ, had no idea. It was a movie I enjoyed as a child. I had no idea the director was such a (allegedly) piece of shit human being.

João Calhau @astrocalhau.bsky.social · 2d

Honestly I don't even know who the director is. And the criticisms of the movie that I hear about was always about how ridiculous it was. With more people "hating" it than not. Regarding the creepiness, I have no knowledge to judge.

João Calhau @astrocalhau.bsky.social · 2d

I did not see a single reference to The Fifth Element. Shameful.

João Calhau @astrocalhau.bsky.social · 2d

I was just looking at this filter set (and it's SII complement). How is it? It looks insanely cheap, compared to, say, the L-enhance.

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João Calhau @astrocalhau.bsky.social · 3d

Send hel- no.

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João Calhau @astrocalhau.bsky.social · 3d

You take that back! That cat is NOT ridiculous!

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João Calhau @astrocalhau.bsky.social · 3d

🫡

João Calhau @astrocalhau.bsky.social · 3d

?
Linux is linux.

João Calhau @astrocalhau.bsky.social · 4d

So... 4 cats?

João Calhau @astrocalhau.bsky.social · 5d

Trick question. You eat it now and buy another after the dentist appointment.

João Calhau @astrocalhau.bsky.social · 5d

It is very telling that the "authorities" like the European Commission continue to refer to the actions that led us here as "Progress".

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João Calhau @astrocalhau.bsky.social · 5d

Eu acredito piamente que esse monte de merda não bate bem da cabeça, mas ao mesmo tempo penso que permitir-lhe a desculpa de demência é dár-lhe uma escapatória fácil à responsabilidade do que faz...

João Calhau @astrocalhau.bsky.social · 5d

Not progress. Unchecked exploitation. Which is actually a form of regression, thinking about it.

European Commission @ec.europa.eu · 5d

Europe’s environment and oceans are sending a clear message:

Progress has a price. Waters are rising fast.

Here’s what the latest EU reports reveal ↓

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João Calhau @astrocalhau.bsky.social · 6d

Not the cone of shame! 😭

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João Calhau @astrocalhau.bsky.social · 6d

I'm not British and didn't contribute to the fight, but I take this as a huge personal win.

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João Calhau @astrocalhau.bsky.social · 6d

Space whales, naturally.

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