Oorzaken en gevolgen van energetische zonnedeeltjes

Deze namiddag interessante lezing in de volksterrenwacht, Armand Pien, in Gent. De lezing werd verzorgd door Dr. Mark Dierckxsens.

Spaceweather of ruimteweer is het onderzoeksdomein dat de variabele condities in ons zonnestelsel bestudeert en in het bijzonder de invloed op de ruimte nabij de aarde. De belangrijkste oorzaak voor deze veranderingen is de elfjarige cyclus van de magnetische activiteit van de zon. Hevige uitbarstingen zoals zonnevlammen en plasmawolken die voornamelijk voorkomen tijdens periodes van maximale zonneactiviteit kunnen geladen deeltjes in een korte tijdsspanne versnellen tot hoge energieën. Deze energetische zonnedeeltjes kunnen schade veroorzaken aan cruciale elektronica van ruimtevaartuigen en satellieten, communicatiekanalen verstoren en een schadelijk effect hebben op de gezondheid van zowel astronauten als personeel en passagiers in vliegtuigen die transpolaire routes volgen. De oorzaken en gevolgen van de energetische zonnedeeltjes zullen in detail besproken worden, evenals de methodes die gebruikt worden om hun schadelijke effecten in te perken.

Double rainbow

Rain on one site and sun on the other site. The result : a rainbow, even a double one.

The Little Scorpion or Stingray Cluster NGC1342

NGC 1342 is located in constellation Perseus. It is an open starcluser about 2200 light years away from Earth. NGC 1342 is also known as the Stingray Cluster and The Little Scorpion Cluster.

Details : Nikon D7500 on TAL200K f/8.5, 30s exposure time and ISO4000. Raw data converted into DNG file and edited using CS4.

Fireworks Galaxy NGC6946

NGC6946, Fireworks Galaxy is located in constellation Cygnus & Cepheus and about 25million lightyears from Earth.

Details : Nikon D7500 on TAL200K f/8.5 and 50minutes exposure. Each picture ISO6400 and 30s exposure time. Raw data is converted into DNG files and stacking using DeepSkyStakker. Final editing in CS4.

Orion Nebula and surrounding

The Orion Constellation in the morning sky with the bright Orion nebula.

Moon Last Quarter

On the morning of September 22, the moon is exactly 50% illuminated and thus "last quarter". Picture was taken with Nikon D7500 on TLAPO80/480 f/6 and setting in mirror up position.

The Triangulum Galaxy M33

The Triangulum Galaxy M33 is located in constellation Triangulum and located about 2.7 million light years from Earth.

Details : Nikon D7500 with TAL200K f/8.5 and 53 min exposure. Each picture ISO3200 and 30s exposure time including darks. Raw data converted into DNG and stacked using DeepSkyStakker. Final editing in CS4.

Globular Cluster M92

Globular Cluster M92 in constellation Hercules.

Details : Nikon D7500 on TAL200K and 12minutes exposure. Each picture ISO3200, 30s exposure time including darks. Raw data converted into DNG files and stacking using DeepSkyStakker. Final editing in CS4.

Ring Nebula M57

Planetary Nebula Messier M57, Ring Nebula in constellation Lyra.

Details : Nikon D7500 with TAL200K, total exposure 22min. Each picture ISO3200 and 30s exposure including darks. Raw data converted to DNG files and stacking using DeepSkyStacker. Final editing in CS4.

Hercules Globular Cluster M13

Hercules Globuluar Cluster M13 was observed yesterday again but this time wioth TAL200K. Pictures were taken including darks.

Details : Nikon D7500 on TAL200K f/8.5, total exposure 36 min. Each picture ISO3200 and 30s exposure time. Darks are included and RAW data converted into DNG files. Stacking using DeepSkyStakker and final editing with CS4.

Galaxy NGC7331

Galaxy NGC7331 or Caldwell 30 is located in constellation Pegasus and is about 40million light years away from Earth. The other galaxies next to NGC7331 are at a distance between 200 and 400 million light years. The data of the other galaxies are provided via Astrometry.

Details : Nikon D7500 on TAL200K f/8.5 with total exposure of 25min. Each picture 30s, ISO6400. Raw data converted into DNG and stacked using DeepSkyStacker. Final editing in CS4.

Stephan's Quintet

Stephan's Quintet is a group of galaxies in the constellation Pegasus. It consist of NGC7317, NGC7318A&B, NGC7319, NGC7320, NGC7320B&C.
NGC73118A&B are colliding galaxies about 300million light years away from Earth.

Details : Nikon D7500 on TAL200K f/8.5 total exposure of 50min. Eacht picture 30s and ISO6400. Raw data converted to DNG and stacked using DeepSkyStakker. Final editing in CS4.

Moon Waning Gibbous 72%

This morning the moon was high and bright in the sky.

Purple sky or not?

This evening it look like the sky was rather purple. So not sure if this something arteficial or natural?

Moon Waning Gibbous 88% Illuminated

This morning the was "shining" bright above the Southern horizon, 88% illuminated.

Sunrise

Send by iPhone 6 iOS 11.2.5




Sunrise with low hanging fog above the Demer river.

Globular Cluster M92

Globular Cluster M92 in constellation Hercules is located about 26.000 light years from Earth. The cluster has an age of 14.2 billion years  old.

Details : Nikon D7500 on TLAPO 80/480 f/6 with total exposure of 20 minutes. Each picture : ISO1600 and 25s exposure time. Raw pictures and Darks are converted into DNG files and stacked using DeepSkyStacker. Final editing and crop in CS4. The picture show some satellite trails.

Moon Waning Gibbous

One day after full moon this picture was taken.

Hercules Globular Cluster M13

Globular Cluster M13 in constellation Hercules is located at a distance of 22500 light years from Earth.

Details : Nikon D7500 on TLAPO 80/480 f/6 with total exposure of 21 minutes. Each picture : ISO1600 and 25s exposure time. Raw pictures and Darks are converted into DNG files and stacked using DeepSkyStacker. Final editing and crop in CS4.

Sun in H-Alpha

Some high clouds but still...

Clouds and Full Moon

Almost full moon and  clouds try to cover the Moon.

Moon 98%

Almost full Moon with the Moon 98% illuminated.

Sundog

Bright Sundogs and partial halo just before sunset.

Moondog or Paraselene

My first ever Moondog was observed yesterday evening. The sky was almost open and with the naked eye I could observe some color at 22° east from the Moon. My pictures proved I was right and thus confirmed my first ever Moondog. Scientifical speaking is's called a Paraselene and it is the same phenomenon as with sundogs.

Globular Cluster M70 is located in constellation sagittarius and about 30000 light years from Earth. The age of the cluster is estibated to be 12,8 billion years.

Details : Nikon D7500 with TAL200K f/8.5 80/480 f/6 and total exposure of 150s; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Nightscape in Ko Pha-ngang

Picture was taken on the Island Ko Pha-ngang in Thailand. Constellation Scorpius is clearly visible as well as Jupiter and Saturn.  The fact that Jupiter looks so bright is due to moisure in the air and Jupiter really bright.

Globular Cluster M54

Globular Cluster M54is located in constellation Sagittariusand about 17500 light years away from Earth.

Details : Nikon D7500 with TAL200K f/8.5 and total exposure of 210s; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Messier to do list : 9 Objects to go

A couple of Messier Objects to go to finish the Messier list and the PSA list (Periodical System for the Amateur Astronomer) :

To Do list of my 9 Messier objects ordered by date of midnight culmination and altitude above horizon :

March 21 : M109
April 1 : M58, M68 and M104
April 16 : M83 8°55'
April 22 : M101
June 16 : M6 6°34'
June 20 : M7 3°58'
June 29 : M69 6°22

Challenging as can be seen will be M7, M69, M6 and M83.
Object M58 and M59 are forming a "pair" only seperated 1°1'.

Globular Cluster M75

Globular Cluster M75 is located in constellation Sagittarius and about 67000 light years away from Earth.

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 30min; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Messier M72 and M73

Globular Cluster M72 and M73 (asterism of 4 stars) in constellation Aquarius.

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 2 min; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Globular Cluster M72

Globular Cluster M72 is located in constellation Aquarius. 

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 8min; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

20 minutes before landing of Chandryaan 2 on the Moon

ISRO, Indian Space Research Organisation, will be putting a lander on the moon. It's the first time a lander will set ground near the South Pole of the Moon. The Chandryaan 2 mission will be live covered via this link.

Moon almost First Quarter

A rather cold evening with 10°C and the Moon mow above the Southern horizon. It's almost First Quarter (47% illuminated). Picture was taken using the function MU : Mirror Up position. The result is a more sharp picture as the shutter is already open.

Open Cluster M26

Open Cluster M26 is located in constellation Scutum and about 5100 light years away from Earth.

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 330s; each picture ISO800 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Globular Cluster M28

Globular Cluster M28 is located in constellation Sagittarius and 18000 light years away from Earth. The cluster is 12 billion years old. 

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 450s; each picture ISO640 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

Globular Cluster M62

Globular Cluster M62 is located in constellation Ophiuchus and about 22500 light years from Earth. Picture was taken in Tessenderlo, during twilight and blocked by a tree.

Details : Nikon D7500 with TLAPO 80/480 f/6 and total exposure of 120s; each picture ISO640 and 30s exposore. Raw files converted to DNG files and stacked using DeepSkyStacker. Final editing with CS4.

ISS Fly By

The winter constellations appear in the morning sky: Orion, Taurus and Auriga above the eastern horizon. The bright trail is the International Space Station ISS.

Waxing Crescent Moon 8% Illuminated

This evening the Moon could be observed low above the Western Horizon. The moon, 60h after New Moon, is 8% illuminated.

Planet Neptune

Planet Neptune is currently loacted in constellation Aquaries. The picture shows also NGC7585 and NGC7576.

Planet Uranus

Uranus is currently loacted in constellation Aries.