Pascal Hilkens Astro Home Page
Sunday, December 30, 2018
Venus and Jupiter in the morning sky
Saturday, December 29, 2018
Astromical Highlights 2018
Some of my Astronomical Highlights of 2018 are summarized below :
- Nighscape Startrail Picture
- Comet 21P Giacobini-Zinner and M35 Open Starcluster
- Planets Saturn, Mars and Jupiter with GRS
- The Russian Space Shuttle Buran in Germany
- The Quit Sun with SolarMax3 DS and an unique circumscribed Halo
- Pictures of M45 Pleiades and M31 Andromeda Galaxy
Beginning of 2018 I successfully completed a workshop Nighscapes and took the time to make some startrails.
A couple of Comets crossed the sky with 21P Giacobine-Zinner "close" to M35 :
The Sun was quit in 2018 but I could make some nice picture with my new SolarMax3 Double Stacked and of course some halo's :
Visiting the Technic Museum Spyer in Germany with Buran and Soyuz TM-19
And being proud of a couple of deepsky pictures M31 and M45 :
- Nighscape Startrail Picture
- Comet 21P Giacobini-Zinner and M35 Open Starcluster
- Planets Saturn, Mars and Jupiter with GRS
- The Russian Space Shuttle Buran in Germany
- The Quit Sun with SolarMax3 DS and an unique circumscribed Halo
- Pictures of M45 Pleiades and M31 Andromeda Galaxy
Beginning of 2018 I successfully completed a workshop Nighscapes and took the time to make some startrails.
A couple of Comets crossed the sky with 21P Giacobine-Zinner "close" to M35 :
The planets Mars, Jupiter and Saturnus
The Sun was quit in 2018 but I could make some nice picture with my new SolarMax3 Double Stacked and of course some halo's :
Visiting the Technic Museum Spyer in Germany with Buran and Soyuz TM-19
And being proud of a couple of deepsky pictures M31 and M45 :
Thursday, December 27, 2018
Right hand Sundog
Today I was working in my garden and could observe a couple op Sundogs. Due to fast changing circumstances the Sundogs did not last long. This is one picture I could make during noon time with a right hand Sundog.
Monday, December 24, 2018
Happy Birthday - 6 Years Blogging
My first blog was published on December 23, 2012. So, today, time to celebrate 6 years of blogging.
Congratulations :)
Congratulations :)
Sunday, December 23, 2018
The Solar System Barycenter
The Barycenter of our Solar System is the mutual center of mass of the total Solar System with the Sun and all it's Planets.
So the Sun and the Planets orbit this mutual center. This center or Barycenter of our Solar System moves depending the position of the planets. The location of the Barycenter is mainly driven by Jupiter and next by Saturnus, Uranus, ...
Sometimes the Barycenter is located within "the Sun" but as it is currently, the Narycenter is located outise the photosphere of the Sun. See picture above - the Sun is drawn in Yellow.
Friday, December 21, 2018
WOW Double Pinhole Solargraph June-December 2018
Today I opened my DIY Pinhole Camera after being outside for exactly 6 months. This time I made two holes in my pinhole camera making it a bit more creative. I'm really satisfied of my result. The solargraph is very sharp and the double hole makes it even more special. I think this Solargraph is one of a kind :)
The pinhole camera was installaed in my garden with a southview on my tree.
The pinhole camera was installaed in my garden with a southview on my tree.
Time to install your pinhole camera for a Solargraph - DIY Solargraphy
Last day to prepare for your Solargraph. This date is perfect to install your Solargraph and keep it outside untill June 21, 2019.
How to make a pinhole camera for a Solargraph? See instruction noted in my blogpage, both English as Dutch.
How to make a pinhole camera for a Solargraph? See instruction noted in my blogpage, both English as Dutch.
Start Astronomical Winter
In the northern hemisphere the astronomical winter will start at exactly 23h23 local time (UT22h23).
Sunday, December 16, 2018
Fix the date 23 january 2019 : Sir Roger Penrose
On Jan 23, 2019, Sir Roger Penrose will give a lecture as part of Studium Generale at Maastricht University. I made already a big circle in my agenda for this unique event.
Saturday, December 15, 2018
Bathtinov Mask
For the first time I used a Bathinov Mask (in loan from Walter) to focus my telescope accurately. Putting the mask in front of my telescope and then pointing the scope on a bright star will show spikes. When the central spike is centred between the two outer ones, the system is focus.
Orion Nebula M42 - 9min exposure
The below picture is the result of 9 minutes exposure of the Orion Nebula or Messier M42.
Equipment : TAL200K with Nikon D7500. In total 18 pictures, each 30s, ISO6400 are stacked using DeepSkyStacker. The tiff32 file was edited using CS4.
Equipment : TAL200K with Nikon D7500. In total 18 pictures, each 30s, ISO6400 are stacked using DeepSkyStacker. The tiff32 file was edited using CS4.
NGC Objects 1647 2024 2129 2323
I made some pictures of a couple of NGC objects during the evening of december 13, 2018 :
NGC 1647 : Open Star Cluster
NGC 2024 : Flame Nebula
NGC 2129 : Open Star Cluster
NGC 2323 : Open Star Cluster - Messier M50
All pictures taken on TAL200K and stacking with DeepSkyStacker. No usage of darks. Editing from Tiff32bit using CS4 by modification of curves and levels on each RGB channel.
NGC 1647 : Open Star Cluster
NGC 2024 : Flame Nebula
NGC 2129 : Open Star Cluster
NGC 2323 : Open Star Cluster - Messier M50
All pictures taken on TAL200K and stacking with DeepSkyStacker. No usage of darks. Editing from Tiff32bit using CS4 by modification of curves and levels on each RGB channel.
Flame Nebula NGC2024
First trials to capture the flame nebula or NGC2024. East of Alnitak (the most "left" star of the belt of Orion) the emission nebula NGC2024 can be found.
Picture was taken on TAL200K and stacking with DeepSkyStacker. Editing using CS4.
Picture was taken on TAL200K and stacking with DeepSkyStacker. Editing using CS4.
Friday, December 14, 2018
46P Wirtanen and Geminid Meteor
Startrail with 11mm lens
The idea was to take pictures of the Geminid meteor shower but at the time the shutter went open only a few showed up. In stead of deleting the pictures I stacked the pack using startrails.de
The pictures are taken with a Nikon D7500 and Tamron 11mm lens. A total of 72 pictures, each ISO1600 15s. The view is towards the south-eastern horizon,
The pictures are taken with a Nikon D7500 and Tamron 11mm lens. A total of 72 pictures, each ISO1600 15s. The view is towards the south-eastern horizon,
Orion Nebula M42
Thursday, December 13, 2018
Perihelion Comet 46P Wirtanen
Conditions : Temperature -1,3°C, no clouds and 100% humidity. This time I was not able to see the comet with the naked eye. I did see the comet with my bino 10x25.
Pictures are taken with TAL200K f/8.5 using Nikon D7500. Limited editing with CS4.
Tuesday, December 11, 2018
Comet 46P Wirtanen
Another picture of comet 46P Wirtanen. No louds, humidity 100% and light pollution in the south direction. Picture taken with exposure of 30s, ISO3200 and very limited editing.
Monday, December 10, 2018
Comet 46P Wirtanen
In between the clouds I was able to make some pictures of comet 46P Wirtanen. Humidity was 100% and moderate seeing.
Friday, December 7, 2018
Comet 46P/Wirtanen
Sunday, December 2, 2018
Waarnemen van Zonnevlekken : een kleine geschiedenis
Tijdens het actualiseren van mijn werkje rond Onze Zon las ik een en ander over de geschiedenis van de eerste waarnemingen van zonnevlekken. Het hoofdstuk "zonnevlekken" werd dan ook opnieuw ingeleid :
"Op het
oppervlak van de fotosfeer (500km) zien we regelmatig zwarte plekken opduiken.
In
de Westerse wereld wordt de oudste melding van vlekken op de Zon toegeschreven
aan de Griekse filosoof Theophrastus van Eresos uit de 4de eeuw v.Chr.
Blote oog waarnemingen van Chinese
astronomen zijn ook teruggevonden in geschriften en dateren uit het jaar 185
v.Chr.
Een eerste echte Westerse tekening van zonnevlekken is de beroemde
Engelse schets dat als de Kroniek van Jan van Worcester gekend is. Deze
observatie gebeurde op 8 december 1128.
Naast
blote oog waarnemingen was het wachten tot 8 december 1610. Die dag richtte
Thomas Harriot zijn telescoop op de zon waarna hij duidelijk 3 vlekken zag.
Enkele maanden later, op 9 maart 1611, zagen ook vader en zoon Fabricius
zonnevlekken doorheen hun telescoop en publiceerden dit in hun werk “Maculis in
Sole Observa”.
Galileo Galilei startte
daarna in 1612 met het systematisch observeren van zonnevlekken of Maculae
Solares met behulp van zijn telescopen".
Eerste Westerse tekening van zonnevlek door Jan van Worcester - Corpus Christi College Oxford p394 |
Weather Summary November 2018
November was rather normal regarding temperature, wind, rain and air frost days. The only difference with previous years are the total amount of rain days, only 9 this month against 14-16 days average for previous years.
Sunday, November 18, 2018
Sun H-Alpha Sunspot 2727
Picture of the Sun today with Sunspot AR2727. This picture was taken using Nikon D7500 on Coronado SolarMax 3 70/400 f/5.7 DS/BF15 with setting ISO3200 and 1/100s. Final editing using CS4.
Sunday, November 11, 2018
The Pleiades Messier M45
Pictures are taken with Nikon D7500 on TLAPO 80/480 f/6 on EQAZ6 GT mount.
Saturday, November 10, 2018
Andromeda Galaxy M31, M32 and M110
For stacking my pictures (40 pictures ISO6400 each 30s) I did not use DeepSkyStakker but Astro Pixel Processor. The outcome is a fits file which is converted to Tiff 32bit and edited with CS4. The final results shows the Andromeda Galaxy M31 and both M32 en M110.
Thursday, November 8, 2018
Studium Generale Quantum Computers
Lecture on Quantum Computers at the University of Maastricht as part of Studium Generale dd November 27, 2018.
Sunday, November 4, 2018
Messier M52 en Bubble Nebula
Renewed editing of Messier M52 and the Bubble Nebula. Total exposure of 300s and including darks. Initial stacking results in Fits 32bit file. Using DeepSkyStakker to convert into Tiff32bit rational file which is edited in CS4.
Spiral Galaxy NGC891 New Edit
Saturday, November 3, 2018
Open Star Cluster NGC7686
Open Star Cluster NGC7686 in constellation Andromeda. Picture taken on Sept. 26 using TLAPO80/480 f/6 with Nikon D7500. Stacking with DeepSkyStakker using darks, final editing with CS4.
Thursday, November 1, 2018
Onze Zon - De meest nabije ster (nieuwe update v2.5)
Afgelopen dagen heb ik tijd genomen om mijn werkje rond "Onze Zon - De meest nabije ster) te actualiseren. Het was al weer een tijdje geleden (dec 2017) en ik voldoende materiaal voor een nieuwe update.
De actualisatie betreft ondermeer :
- Update resultaten Ulysses
- Voyager 2 en Heliosfeer
- Parker Solar Probe en Corona heating problem
- Differentiële rotatie
- ...
Veel leesplezier - en hierbij de link.
De actualisatie betreft ondermeer :
- Update resultaten Ulysses
- Voyager 2 en Heliosfeer
- Parker Solar Probe en Corona heating problem
- Differentiële rotatie
- ...
Veel leesplezier - en hierbij de link.
Tuesday, October 30, 2018
Solar Wind and Corona Timeline
Parker Solar Probe Breaks Record and Becomes Closest Spacecraft to Sun
After the first gravity assist on October 3rd, 2018, between Parker Solar Probe and Venus, the Parker Solar Probe now holds the record for closest approach to the Sun by a human-made object. Parker Solar Probe passed the current record of 42.72 million km from the Sun's surface on Oct. 29, 2018, at about UT17:04, as calculated by the Parker Solar Probe team.
Over the next years the probe will continue to break it's own records as it will fly closer and closer to the Sun.
Credit NASA's Goddard Space Flight Center/Mary Pat Hrybyk-Keith
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