Search the Community
Showing results for tags 'stars'.
Found 30 results
I often love to play youtube lectures in the background as i work on my home improvement projects, only problem with that is many times my attention gets so focussed on the computer screen that i fail to see paint dripping from my brush onto the carpet, that did happen!. Anyway, here's a great lecture from the Perimeter Institute for Theoretical Physics which is just a couple hours drive from my home about the weirdest stars known, some fascinating facts here with a dose of humour.
Hi guys/everyone. Well viewing has not been great over my area lately so i took to my camera to see if i could get some shots in of Jupiter with the stars around it, i shot these images with my NIKON D5300 and the standard kit lens of 18-55mm 3.5-5.6 DX, i was getting bored and have been wanting to try and do the milky way shots that you see everyday and look truly great, although i was not aiming for the milky way, what i was trying to use as my center point was Jupiter, i was quite amazed at how many stars i was picking up considering the great street light of heavensvile lol slap bang outside my window, anyway my shots are below if anybody is interested in taking a look and offering some advice. Also forgot to mention that some of the shots was taken with my Tamron 70-200mm lens, but most was shot with the 55mm kit lens i got with the camera. Cheers Mark.
This is KIC 8462852, the star which some academics are speculating may possibly have 'alien megastructures' orbiting it creating a media stir. Other large telescopes are now pointed at the star and SETI is on the case with radio telescopes. I still think we'll find out it's some natural phenomenon but whatever is discovered will be exciting. 10 x 2 minute exposures at 800 ISO11 x dark frames11 x flat frames24 x bias/offset frames (subtracted from flat frames only)Guided with PHDProcessed in Nebulosity and Photoshop
I noticed that my stars are a tiny, barely perceptibly, bit egg-shaped yesterday. For a change, instead of crying into my pint-glass, I decided to investigate: There's a script in PI called FWHMEccentricity. I used that on a couple of my subs and found that I have a median eccentricity of about 0.49. Not knowing if this was particularly bad, I went off and analysed some professional images of of the internet (and some from the posters on SGL, who will remain anonymous). Would you believe it, many of the images were coming out at about 0.4 - 0.45. So I conclude guess that 0.45 must be about the threshold where the human eye/brain can distinguish between a circle and an ellipse. How round are your stars? does it bother you if they are "not quite there"? Can you tell that I am bored with the cloudy skies?