Search found 5697 matches

by brian livesey
Tue Apr 13, 2021 5:40 am
Forum: Gallery
Topic: Sunspots
Replies: 2
Views: 1032

Re: Sunspots

Looks like a Sun flower, which is appropriate, don’t you think?
by brian livesey
Mon Apr 12, 2021 6:03 pm
Forum: Gallery
Topic: The SUN - 11th April
Replies: 3
Views: 48

Re: The SUN - 11th April

Does the white spot on the Sun have an official classification? It looks like a flaring site.
by brian livesey
Mon Apr 12, 2021 12:50 pm
Forum: Visual Satellite Observing
Topic: ISS leaking from old age ..
Replies: 2
Views: 63

Re: ISS leaking from old age ..

They could replace modules at the station with new ones. Originally, the ISS was intended to be considerably bigger, but mounting costs set a limit to its eventual size.
by brian livesey
Mon Apr 12, 2021 12:42 pm
Forum: General chat
Topic: Another possible meteorite fall
Replies: 4
Views: 147

Re: Another possible meteorite fall

Early life was wearing hard hats at the time :wink: . Seriously though, a current theory for the origin of life says that the molten masses below craters formed by asteroid strikes cooled and created geothermal springs, rich in the nutrient chemicals necessary for life. Apparently, it only happened ...
by brian livesey
Sun Apr 11, 2021 5:35 pm
Forum: Observing
Topic: Solar proms
Replies: 2
Views: 65

Re: Solar proms

I should add that the observation I made was supplemented by a double-stack observation. I attached the Lunt LS50f to the PST. This revealed a white patch on the solar disc. Lunt claims that it’s solar components don’t work with other solar makes, but the LS50f etalon works well with the PST, as it ...
by brian livesey
Sun Apr 11, 2021 11:11 am
Forum: Observing
Topic: Solar proms
Replies: 2
Views: 65

Solar proms

The Sun is still in boring mode it seems, with little to see except for proms. The last solar maximum showed lots of detail: sunspots, proms, filaments and flares. This time round the Sun is taking its time to emerge from full minimum. This morning I was able to image several proms in the PST with a...
by brian livesey
Sat Apr 10, 2021 5:38 pm
Forum: Visual Satellite Observing
Topic: ISS leaking from old age ..
Replies: 2
Views: 63

ISS leaking from old age ..

In 2019 an air leak was discovered in the International Space Station ( ISS ). Attempts to fix the leak have not been fully successful. Last year, technicians identified why cabin pressure had been affected. Other cracks where discovered in 2020 using an electron microscope and sealed, but there are...
by brian livesey
Sat Apr 10, 2021 3:13 pm
Forum: Visual Satellite Observing
Topic: Rockets and satellites
Replies: 0
Views: 105

Rockets and satellites

The news agency Tass said that Russia is planning to design and build rockets capable of carrying payloads of two-hundred tonnes. While China is to built its fifth rocket launch site, including a section of a command centre and assembly testing facility. The new launch site will be in Xiangshan, clo...
by brian livesey
Fri Apr 09, 2021 8:01 pm
Forum: General chat
Topic: Elon Musk promotion
Replies: 7
Views: 230

Re: Elon Musk promotion

The global population level is slowing and set to stabilise at 8 billion. It’s HOW we live at this point in time that’s fouling the nest. We need total system change, not half-baked reformist solutions. But that’s politics .. .
by brian livesey
Fri Apr 09, 2021 7:50 pm
Forum: Gallery
Topic: IC 1805
Replies: 4
Views: 71

Re: IC 1805

I thought it was the Eagle neb because at the centre of the nebulosity there appear to be structures that look like the so-called Pillars of Creation.
by brian livesey
Fri Apr 09, 2021 3:38 pm
Forum: Gallery
Topic: IC 1805
Replies: 4
Views: 71

Re: IC 1805

There’s plenty of extended detail in there. Are we looking at the Eagle Nebula?
by brian livesey
Thu Apr 08, 2021 7:26 pm
Forum: General chat
Topic: Elon Musk promotion
Replies: 7
Views: 230

Re: Elon Musk promotion

The Moon and Mars were messed up long before showman Musk burst onto the scene Mike, by asteroids and comets.
by brian livesey
Tue Apr 06, 2021 5:12 pm
Forum: Observing
Topic: Mu Cephei
Replies: 10
Views: 135

Re: Mu Cephei

I haven’t seen this star for many years. It’s very pretty.
by brian livesey
Tue Apr 06, 2021 11:31 am
Forum: Light pollution
Topic: National star-count completed ..
Replies: 0
Views: 155

National star-count completed ..

The countryside charity CPRE has completed its survey with over 8000 results. The star count has revealed a ten percentage drop in people experiencing severe light pollution since February. The CPRE attributes this reduction probably to the Covid lockdown. The number of stars counted in Orion betwee...
by brian livesey
Mon Apr 05, 2021 9:08 pm
Forum: Astrophysics
Topic: Another Interstellar Visitor Is Headed Our Way
Replies: 2
Views: 1428

Re: Another Interstellar Visitor Is Headed Our Way

Apparently, these interstellar visitors to the Solar System are more frequent than was previously thought.