Monday, May 28, 2018

Solar activity

Here's a couple of  photos of today's beautiful Sun. Lots of nice activities going on despite the fact that the Sun is heading for a activity minimum in the solar cycle. Including a closeup shot of today's big beautiful prominence.  Taken using a Lunt LS80THa telescope with a PointGrey Grasshopper 3 camera.




Tuesday, May 1, 2018

Iridescent Clouds

Yesterday I saw some really colorful Iridescent clouds, one of my favorite cloud phenomena. These clouds are visible when parts of clouds are thin and have similar size droplets, diffraction can make them shine with colours like a corona. I like how the Sun was covered enough to be visible through and not totally overexposed.

Nikon D850 with Nikkor 70-200mm f/2.8E
Exposure: 1/8000 sec. ISO 64 @ 112mm f/8

Thursday, April 19, 2018

The Milky Way and the Northern Lights

During this time of the year, the Milky Way stretches from North East to North West in the sky, perfect position to combine our galaxy with a faint Aurora. If the Aurora is to bright and active, it will block the light from the Milky Way. This panoramic photo I took last week is a perfect example of what a faint Aurora and the Milky Way looks like together.

Nikon D850 with Nikkor 14-24mm f/2.8
Exposure: 20 sec. ISO 1600 @ f/2.8

Tuesday, April 10, 2018

Heart and Soul nebulae

The astronomical nights is soon coming to an end. Last night we only had 2 hours of astronomical darkness so despite the Northern Lights (Photo of that is coming later) my main focus was to do some deep sky photography. My plan was to take photos of the Heart and Soul nebula since I haven't done them for quite some time and not with the Nikon D810A. All in all I'm quite happy with the result.

Photo was taken with a Nikon D810A, Nikkor 70-200mm f/2.8E @ 135mm f/4. Exposure 45 x 60 seconds for a total exposure of 45 minutes at ISO 1600. Stacking and calibration (Darks, flats and bias frames) was done in PixInsight, final processing in Photoshop.


Monday, March 26, 2018

Colors of the Moon

In this photo taken on the 24th of March 2018, I've exaggerated the colors on the lunar surface. The different colors correspond to real differences in the chemical makeup of the lunar surface - blue hues reveal titanium rich areas while orange and purple colors show regions relatively poor in titanium and iron.

This is a single exposure and no tracking was used. This night we had exceptional good air conditions with very good seeing.

Nikon D850, Nikkor AF-S 600mm f/4 + TC-17E II
1/80 sec. ISO 64 @ 1000mm f/8