Getting Crowded Up there

[tim.anderson]

I recently did some images of NGC300 - one hundred frames at 180 seconds each over two nights. So, approximately five hours of exposure.

The attached picture is a heavily stretched stack of the base frames without any calibration.

Count the tracks.

[multiweb]

Elon's constellation satellites? :) That new Tesla window test was even better than the live microsoft bsod with 95 and the first plug n play printer.

[alpal]

It's good that stacking software can get rid of all the satellite trails.

[Wilso]

“It's good that stacking software can get rid of all the satellite trails.”

Your going to need it looks like Elon’s just lunched another 60 satellites and has approval to go ahead for the 12,000 to cover the US and Canada.

[Atmos]

I want to do a long exposures around M42 which has always been a satellite magnet. I’m hoping that it’s just the rest of the sky that’s taking a hammering and not getting worse around that region!

[gregbradley]

Yeah you'd think someone tried that out first before it was telecast around the world!

Greg

[Paul Haese]

Yes it is busy up there but will get stupidly so once the idiot notion of funding a Mars mission by selling internet time to everyone takes place. Not to mention that Microwave astronomy will be completely dead on earth thanks to Elon Musks outlandishly stupid idea. Reportedly recently he told professional astronomers they should build telescopes in space. One apparently said back to him that building a 30 metre scope in space is not even a possibility with current tech, nor is there enough money in the system for that sort of thing. My gripe is what about all the money we have invested in imaging overall? What about the imaging companies? What about the hosting companies? Countries investments into imaging the cosmos? Time for a class action once those 12-40K satellites go up. Bear in mind that currently there around around 5000 satellites in orbit. Imagine what imaging will be like once Musk adds another 40K to that number. It won't be amusing then I can assure you.



Sorry for the divergence.

[tim.anderson]

I simply can't see how it is an economic proposition, given the coverage density of existing terrestrial cable networks, let alone whether services with a built-in one-second delay on every single transmission would be attractive to consumers. And what possible benefit could it be in the southern hemisphere, which is largely empty ocean.

Frankly, it sems to be recipe for losing a staggeringly large amount of someone else's money.

[alpal]

Yes Paul - more satellites is a crazy idea.
I wish they would make a larger Hubble telescope with longer focal length.
Hubble is 13.3 m long and has a Focal Length of 57.6 m.
https://space.jpl.nasa.gov/msl/QuickLooks/hstQL.html
How large could they make a Hubble mark 2?
More focal length would mean higher resolution pictures
and a larger mirror would mean more light gathering ability.

The one that's up there now will be crashed into the pacific ocean
before long and the James Webb may not even work.
Yes - the James Webb is built for infra red but there is still a lot
more to be had from visual light.



cheers
Allan

[Mickoid]

A scary example of what is only going to become worse. Mind you, in this example, these satellites were kind enough to avoid your target! :lol:

[Terry B]

This image came across my feed today.
There is a video here.
https://www.youtube.com/watch?v=oHs7ljhQWPA&feature=youtu.be&fbclid=IwAR28t1IlVx8kbvOfy6u_65qiFT pEx8BDXlPo9cFQNLdvlyIcQp00e0kWMvs

[N1]

Time for another Carrington Event.