måndag 31 augusti 2026
onsdag 26 augusti 2026
A very low moon
A very low moon in the sky, barely visible from the observatory. I didn't think there would be any sharp pictures but they turned out better than I thought. I just managed to take a picture of the moon before it disappeared behind the trees.
The close-up shows the crater Gassendi is a large lunar impact crater feature located at the northern edge of Mare Humorum. The crater was named after French astronomer Pierre Gassendi by the IAU in 1935.
tisdag 25 augusti 2026
Red clover with a aphids on it a clear night
A clear night and I came across this red clover. I illuminated it with UV light and used a macro/wide angle lens to capture the fluorescent colors and the starry sky. Then I noticed the aphids that were hanging out under the flower. Later I took an even closer look at the flower with a more powerful macro lens 2.5x.
söndag 23 augusti 2026
POTENTIALLY DANGEROUS SUNSPOT
A bonus day of partly cloudy weather over the Carpe Noctem observatory. I got to watch and photograph the sun through thin clouds but it was still nice. A little curious about the active area around sunspot group 4513 which according to spaceweather.com is a POTENTIALLY DANGEROUS SUNSPOT: Sunspot 4513 has developed a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. Unlike Thursday's M8-class flare, which missed Earth, future flares will not miss. We're in the strike zone now, according to spaceweather.com.
Some of the images show this area, you can see as a white tear in the sunspot.
måndag 17 augusti 2026
Perseid meteor shower 2026 from Sweden
Photographing Perseid meteors. The radiant of the meteor
shower appears to come from the constellation Perseus in the sky. And it stands
high in the sky from midnight when the peak of the shower is supposed to occur.
My colleague and I went out to the east coast with as little light pollution as
possible and this year without any moon to interfere so the conditions were
nice. It was not astronomically dark but good enough to see even faint meteors
and the Milky Way was clearly visible to the south. I chose to photograph
mostly to the east and south and got a couple of nice pictures with the Milky
Way. I set the camera to rolling exposures, but then you have to hope that some
bright meteor comes along. I also photographed with a macro/wide angle lens and
got most of the meteors. In some cases I used UV light so that some objects
fluoresced in different beautiful colors. Very dry on the rock outcrops and
previous water puddles had dried out of masses and algae etc. dried on the edge
which fluoresced masses in UV, mostly in blue.
There were several nice pictures, one that was published as
NASA's picture of the day, and a nice night on the coast.
Nice prominences
söndag 16 augusti 2026
lördag 15 augusti 2026
Astronomy Picture of the Day #24
I´m honored with my 24th NASA APOD today showing Perseid meteors beside the Milk Way taken earlier this week during the peak.
APOD: 2026 August 15 – Bright Perseids from Sweden
fredag 14 augusti 2026
Meteor shower
The Perseid meteor shower peaked on the night of August
12-13. So after the partial solar eclipse, a colleague and I went to the east
coast to photograph this. The meteor shower is created when the Earth passes
through a trail of space debris and particles left behind by comet
109P/Swift-Tuttle. When these particles (often no larger than a grain of
sand) fall into the Earth's atmosphere, they travel at about 59 kilometers per
second and burn up, creating the luminous streaks in the sky.
The picture shows 5 meteors over the Baltic Sea. In the
foreground is a close-up (macro) of detailed lichen in UV light (blue and
orange) and also a diving beetle (visible in yellow in UV)! Most species are
dark, oval and flat to reduce water resistance. Their hind legs act as
powerful, hair-covered oars that they use to move through the water. Because
they breathe air, they carry an oxygen bubble under their coverts when they
dive. This bubble acts as a kind of "physical gill" and is replenished
when the ram backs up to the surface, tail first.
torsdag 13 augusti 2026
Partial Solar Eclipse from Sweden
Partial solar eclipse from Sweden. It was stressful to find a place for this. The clouds rolled in and I headed off in the car towards clearer areas. Finally, when the eclipse had already started, I found a place by the water with less clouds. I could see the eclipse with the naked eye and photographed it without a filter. There is a risk of both my eyes and the camera sensor being damaged, but everything worked out.
måndag 10 augusti 2026
Seasons first Aurora
The sun has been very active lately with several CMEs creating auroras around midnight in my hometown. It doesn't get dark until midnight, but then a green arc and some pillars were visible at times. The moonrise was beautiful too.
torsdag 6 augusti 2026
Prominence
It was partly cloudy and I took the opportunity to look through the solar telescope between the clouds and saw a nice prominence on the edge of the sun. I managed to take a photo before it got cloudy. The prominence is bigger than our planet Earth, a beautiful sight!
söndag 2 augusti 2026
Bright NLC in moonlight
lördag 1 augusti 2026
The Sun
Sunny days and the sun shows several sunspots and
prominences. The images were taken with Ha and CaK filters, different
wavelengths.
A CaK filter (Calcium K-line filter) is a specialized solar
filter for telescopes that isolates light at a specific wavelength of 393.3 nm
in the deep violet/near ultraviolet (UV) spectrum. The filter is used in
astronomy to observe and photograph the sun, as it makes the lower chromosphere
and the border region with the photosphere visible.
H-alpha solar filterH-alpha solar filterA H-alpha
(Hydrogen-alpha) solar filter is a specialized and advanced optical system that
isolates an extremely narrow light wavelength of 656.28 nanometers (nm), which
makes it possible to safely observe the sun's chromosphere. Unlike regular
white light solar filters, an H-alpha solar filter shows dramatic details such
as prominences (gas clouds ejected from the edge), filaments, sunspots and
solar flares.
lördag 18 juli 2026
Milky Way
Imagine being able to see our own galaxy, the Milky Way, with the naked eye. But you have to get away from all light pollution, away from cities and even local lights. The moon must not interfere either. Wait to get night vision (10-40 min), no lamp on or mobile phone on - then you will see the Milky Way as a band across the sky. These pictures were taken in Gekland and there you can also see the center of the Milky Way, which is seen as a large cloud in the night sky. This part of the Milky Way cannot be seen from Sweden.
The center of our galaxy is located 26,000 light-years away from Earth in the Sagittarius constellation. It features a supermassive black hole called Sagittarius A*, which is about 4 million times heavier than our Sun. Thick cosmic dust hides this busy, star-packed region from normal view.
Astronomers estimate that the Milky Way contains between 100 and 400 billion stars. Because we are inside the galaxy and obscured by thick clouds of gas and dust, we can only roughly calculate the total by measuring the galaxy's mass and observing the movement of its stars













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