Magnetic art – February 23, 2018

Posted in ASTRO, Experimente on February 23, 2018 by maxpho

Just playing a bit with some magnets, iron filings, and a piece of paper. I’ve wanted to take a few shots of this practical experiment for some years now. Finally I had the inspiration to do it..

All shots are negatives of the originals, since to my eyes, the magnetic field lines show better this way.

MAG 1.jpg

MAG 2.jpg

MAG 3.jpg

MAG 6.jpg

MAG 5.jpg

MAG 4.jpg

And a comparison of some homemade magnetic field lines and the aspect of some sunspot groups in H-alpha light. Note the similarities. They might not be the best examples, but they are my only ones showing similar structures on the Sun.

MagSpots.jpg

 

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One short session…February 17, 2018

Posted in ASTRO on February 18, 2018 by maxpho

Just a very short imaging session with the Sun in H-alpha light. Very poor seeing and session cut short due to rolling clouds. Two inches of snow…just 80 km from home (I have no snow here).

 

SolarSessionFebr172018.jpg

The Moon after Space-X

Posted in Experimente, Uncategorized on February 11, 2018 by maxpho

Just a Sunday joke…for lunar and SpaceX enthusiasts.

Not something I wouldn’t like to see or do one day…

SPACExLAUNCHES.jpg

Lunar images – February 2, 2018

Posted in ASTRO on February 10, 2018 by maxpho

Some lunar shots from a very stressful imaging session: lots of cirrus, some fog, wind, and eventually covered skies. The entire session lasted for only 30-40 minutes…

355mm F/4.5 Newtonian, 2x and 2.5x barlow lenses, ASI174MM, red filter. Seeing : variable, 5-7/10.

PetaviusLangrenus.jpg

A new sunspot – February 9 and 10, 2018

Posted in ASTRO on February 10, 2018 by maxpho

Despite being at the solar minimum, our star produced a new active region. Of course, imaging it is a bit difficult due both to the low altitude of the Sun, and to the turbulence in the air associated with this time of the year. Still, a couple of shots were possible.

Equipment: (February 9) 150mm F/5 refractor, Quark H-alpha filter, ASI 174MM, seeing 3/10. (February 10) 115mm F/7 refractor, Quark H-alpha filter, ASI 174MM, seeing 5/10.

February 9:

ar2699february92018.jpg

And February 10:

ar2699february102018bw.jpg

ar2699february102018.jpg

Orion Nebula in H-alpha

Posted in ASTRO on February 4, 2018 by maxpho

Following is my first test showing the Orion Nebula in H-alpha. 14 frames each a 5 minutes exposure (gain 200) were acquired with the TS 65Q APO Refractor and ASI1600MM camera with a Baader 7nm H-alpha filter. No darks, no flats. Guiding via PHD2 and a 50mm finderscope with the ASI174MM. Another 34 frames of 10 seconds each were recorder for the inner region of the nebula. I will need at least 3-4 hours more of data to get a proper view of the area. For now…a test.

testing.jpg

First solar H-alpha for 2018

Posted in ASTRO on February 3, 2018 by maxpho

My first shots in H-alpha with the Sun for 2018. Not the best day for solar imaging, with our star at only 20 degrees above the horizon, and some very poor seeing.

Despite this, two rather large proms were easily visible on the limb.

PromsFebr3.jpg

And the scope used for the above images:

refractor.jpg