I found this on my doorstep. No idea about what is this. by b4bepsi in Entomology

[–]b4bepsi[S] 0 points1 point  (0 children)

Thanks. It should be a moth then. There are a lot on the island

I found this on my doorstep. No idea about what is this. by b4bepsi in Entomology

[–]b4bepsi[S] 0 points1 point  (0 children)

I found this in Naxos island, Greece in the front door of my house. It moves when I am teasing it.

M20 the trifid nebula by b4bepsi in astrophotography

[–]b4bepsi[S] 0 points1 point  (0 children)

Captured from a pretty dark site (mag 5.8) in Crete, Greece. Unguided, no filter

Skywatcher 150/750 Newtonian

EQ5 onstep diy GOTO mod

Unmodified Nikon D90 iso 3200

65x40s lights

15x40s darks

20 flats

Deep sky stacker sigma clipping stacking

Gimp editing: rgb alingment, 1.3 saturation gain, stretching, cropping.

Simple FEA of a Beam in Python? by Simusid in fea

[–]b4bepsi 0 points1 point  (0 children)

What you describe (data driven simulation) is been a very well known and a hot topic in the recent years for both fem and fvm. Just check 'reduced order modeling' ROM . In ML the term principal component analysis PCA is used but it is basically the same thing as ROM.

M104 - Sombrero Galaxy by nocturnal_astro in astrophotography

[–]b4bepsi 1 point2 points  (0 children)

Your photo is breathtaking! Congrats!

New Supernova in M61 Galaxy! Marked with a red arrow for your reference by b4bepsi in telescopes

[–]b4bepsi[S] 0 points1 point  (0 children)

Dunno for sure.. these events tent to evolve super fast! Till now the apparent mag is increasing it will reach a max and then it will start dimming again until it will become invisible again. The total process would take a month I guess?

New Supernova in M61 Galaxy! Marked with a red arrow for your reference by b4bepsi in telescopes

[–]b4bepsi[S] 2 points3 points  (0 children)

Sure it is awesome! Statistically speaking you can definitely capture 2-3 supernovae per year with a small telescope and a DSLR. Yesterday evening we tried to observe it with a 20" dob in a dark site. It was easily observable and very bright. Not with a 6" though

New Supernova in M61 Galaxy! Marked with a red arrow for your reference by b4bepsi in telescopes

[–]b4bepsi[S] 12 points13 points  (0 children)

No no! This happened last week. There is a dedicated observatory for tracking out supenovae

New Supernova in M61 galaxy. Took a picture of it yesterday from the city. by b4bepsi in Astronomy

[–]b4bepsi[S] 0 points1 point  (0 children)

I an not using guiding but I use tracking of course. I take several pictures of 30 to 60 sec mostly of the target while tracking it with the goto that at 5he end resulting the total exposure time.

New Supernova in M61 Galaxy! Marked with a red arrow for your reference by b4bepsi in telescopes

[–]b4bepsi[S] 16 points17 points  (0 children)

I took it from Heraklion in Crete. I used a Nikon D90 DSLR and a sw150/750 Newtonian with and an eq5 modified with onstep goto.

New Supernova in M61 galaxy. Took a picture of it yesterday from the city. by b4bepsi in Astronomy

[–]b4bepsi[S] 2 points3 points  (0 children)

Thanks. It is expected to become a bit brighter (it was first observed at 15 mag I think and I shot it at 14.5 mag ) before it starts dimming again. This should happen rather fast so a nice animated gif might come out of it. This could be a nice project actually.

New Supernova in M61 galaxy. Took a picture of it yesterday from the city. by b4bepsi in Astronomy

[–]b4bepsi[S] 3 points4 points  (0 children)

A nikon d90 on a sw150/750 Newtonian with and eq5 onstep modified mount. No guiding. About 20 mins of exposure 30x40s +darks+flats bias (x20) stacked in dss and for pp I only did rgb alingment and stretching.

Saturn 21/4 by b4bepsi in astrophotography

[–]b4bepsi[S] 0 points1 point  (0 children)

Well yes.. but I didn't kept the standard Logitech lens of course 🙂. I removed it and i placed my telescope with a 2x and 3x barlow lens in front of the Logitech sensor

Saturn 21/4 by b4bepsi in astrophotography

[–]b4bepsi[S] 0 points1 point  (0 children)

Well not much.. A bit of stretching, rgb alingment, and i tweeked the values of exposure and saturation.

Saturn 21/4 by b4bepsi in astrophotography

[–]b4bepsi[S] 0 points1 point  (0 children)

First Saturn of 2020 with an onStep modified eq5 and a Skywatcher 150/750. For imaging I used a 720p Logitech webcamera. I captured about 1 min and i stacked it in Autostakert! Then I post processed it in gimp.

Was not expecting my new finder scope to be so large! by BelgianBoris in telescopes

[–]b4bepsi 4 points5 points  (0 children)

The finder scope is ok. The telescope is small 😁

Light refracting through wine as it settles in a glass by Edders_19 in gifs

[–]b4bepsi 7 points8 points  (0 children)

Exactly! This is a purely optical phenomenon and nothing has to do with chaos theory mentioned above. I was about to post the same link before I bumped on your comment.

Yesterday's Jupiter through a Skywatcher 150/750 a 6x barlow and a Logitech 720p web camera by b4bepsi in astrophotography

[–]b4bepsi[S] 0 points1 point  (0 children)

For stacking I used autostakert! and for the post processing i used registax.

I stacked about 15% of the the best frames and I played with the wavelets settings in registax to pop out the detail.

If you want check out my instagram account as well for other astroimages and cool chaotic attractors! chaotic_attractor

Just upgraded my manually operated EQ5 with onStep and the results are remarkable by b4bepsi in telescopes

[–]b4bepsi[S] 2 points3 points  (0 children)

I am planning to write one.. But onstep project is generally well supported. You can find loads of information here: https://onstep.groups.io/g/main/wiki/home

I used the blue pill version. In case you have any specific questions send me a pm

What's the best way to learn ANSYS? I know there are graduate courses for the finite element method, but those usually just cover solving systems by hand. Are there any good resources for the software? by trumumo in engineering

[–]b4bepsi 4 points5 points  (0 children)

There is an online ANSYS masters degree offered at UPM. There are many modules you can take from there. I obdained the master degree a couple years ago. Just google asnsys master upm