Lunar pollen corona 27./28.5.2013

Observed phenomena: Pollen corona
Light source: Moon
Origin: Pine pollen

Date: 27./28.5.2013
Time: 01:20-01:50
Observing place: Turku, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1100D, lens: Canon EF-S 18-55mm

The pollen season has really started now here in Finland! The amount of birch pollen has been relatively low, but there has been plenty of pine pollen in the air! The pine pollen has also been causing some nice coronas around Sun and Moon, like this one that I observed in Turku, Finland between the night of 27th and 28th of May 2013. This lunar pollen corona was very well developed, besides the innermost aureola, there was also one rectangular -shaped ring outside it. Also the brightenings typical for the pine pollen corona were visible in the corona that I observed.

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Lunar pollen corona 8./9.6.2012

Observed phenomena: Pollen corona
Light source: Moon
Origin: Pine pollen

Date: 8./9.6.2012
Time: 01:20-01:50
Observing place: Ikaalinen, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1000D, lens: Canon EF-S 18-55mm, L80/400mm

I was driving back to Seitseminen, and I decided to have a break in Ikaalinen. Meanwhile, I gazed the sky for noctilucent clouds, but I couldn’t see anything. Instead, I was able to observe a rather rare lunar pollen corona! The pollen species that caused this pollen corona, was propably pine pollen. Pollen coronas are common phenomena in high latitudes during summer, but lunar pollen corona is a rather rare phenomena.

A halo meets a pollen corona 7.6.2012

Observed phenomena: Halo phenomena, pollen corona
Light source: Sun
Origin: High clouds (cirrostratus), pollen of birch
Observed halo forms:

  • Sun pillar

Date: 7.6.2012
Time: 20:35
Observing place: Turku, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1000D, lens: Canon EF-S 18-55mm

On 7th of June 2012, a pollen corona (caused by pollen of birch) and a halo (sun pillar) coincidentally appeared together in the evening in the sky of Turku, Finland. Both of these phenomenae are very common, but you don’t see them together every day!

Picture 2: Sun pillar and pollen corona were visible together in the sky of Turku in the evening of 7th of June 2012.
Sun pillar and pollen corona were visible together in the sky of Turku in the evening of 7th of June 2012.

Pine pollen corona 4.6.2012

Observed phenomena: Pollen corona
Light source: Sun
Origin: Pine pollen

Date: 4.6.2012
Time: 21:00
Observing place: Äetsä, Sastamala, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1000D, lens: Canon EF-S 18-55mm

On 4th of June 2013, I observed a well-developed pine pollen corona in Pehula, Äetsä, Finland. The typical shape of a low-altitude pine pollen corona with the characteristic brightenings were obvious.

A beautiful pollen corona caused by pollen of birch, observed 4.6.2012 close to town of Pehula in Äetsä, Finland.
A beautiful pollen corona caused by pollen of pine, observed 4.6.2012 close to town of Pehula in Äetsä, Finland.

Low altitude birch pollen corona 22.5.2012

Observed phenomena: Pollen corona
Light source: Sun
Origin: Birch pollen

Date: 22.5.2012
Time: 20:45
Observing place: Tampere, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1000D, lens: Canon EF-S 18-55mm

On 22th of May 2012, I observed a nice low altitude birch pollen corona in Tampere, Finland. The birch pollen coronas are only slightly oval -shaped with high solar altitude, but when the Sun is at low altitude, the pollen corona gets stretched vertically and the oval -shape of the corona gets intensively pronounced!

Pollen corona caused by pollen of birch, the Sun was at low altitude, and the corona is much larger than the one that can be seen when the Sun is at high altitude. 22.5. 20:45, Tampere, Finland.
Birch pollen corona with low solar altitude, observed on 22th of May 2012 @ 20:45 in Tampere, Finland