Thursday, December 8, 2022

Mars in opposition and Olympus Mons


December 8th, 2022, and Mars is in Opposition with an angular diameter of 17". Clouds this morning during the Lunar Occulation of Mars but this evening 1 hour clear sky. The polar cap is still and good visible on the northpole and  at 10 o'clock (east) is Olympus Mons visible. I think this is first time I captured this volcano. 

Setting:TAL200K f/8.5, ASI224MC, Barlowx2, ADC and IR/UV blocker
Software: SharpCap, AS3!, CS4 and DeNoise AI



Quasars by The Lonely Photon

Do you want to know more about Quasars then this article  (use this link) is a good start. It's written by my friend Adriano, an amateur astrophotographer. based in Luxembourg. 






My book review "De olifant in het universum" published in Magazine Heelal

 


My book review "De olifant in het universum" is published in magazine Heelal (edition 67, number 12, december 2022) page 35.

See also my previous post on this book via this link

Selfie with the author Govert Schilling


IFTTT replaces Feedburner: AstroPage Pascal Hilkens

Recently I received questions on why people are not receiving my Blogger posts via email. In the past this proces was done through Feedburner but Google stopt supporting this software. I found an alternative with IFTTT - If This Than That. All subscriptions from feedburner are moved to IFTT and an email is generated from Twieter2020@gmail.com.







Lunar Occultation of Mars with Clouds


A lot of clouds before, during and after the Lunar Occultation of Mars. But still I was able to make some pictures a couple of minutes before the Lunar Occultation.

Tuesday, November 29, 2022

US Postal James Webb Space Telescope Stamps


Today I received 20 stamps from the US Postal service. With the release of this vibrant stamp, the U.S. Postal Service celebrates NASA’s James Webb Space Telescope as it continues its epic mission to reveal the cosmos as never seen before.

“When anyone who uses these stamps looks at this telescope, I want them to see what I see — its incredible potential to reveal new and unexpected discoveries that help us understand the origins of the universe, and our place in it,” Robert D. Cabana, NASA associate administrator and former astronaut said. “This telescope is the largest international space science program in U.S. history, and I can’t wait to see the scientific breakthroughs it will enable in astronomy.”


Stamp Artwork

The image on the stamp is an artist’s digitally created depiction of the telescope against a dazzling starscape. Its 18 gold-coated mirror segments — hexagons that combine to form its 21-foot-wide primary mirror—can pick up faint heat waves representing the universe’s first accessible starlight from billions of light-years away. Opposite, supported by three struts, is the secondary mirror. Below are the telescope’s solar shield, computers, control machinery, and the solar array that provides power.

The words “Webb Space Telescope” appear in white along the bottom edge of the stamp. “USA/FOREVER” runs vertically up the left-hand edge. In the selvage, at top, “James Webb Space Telescope” is printed in gold against the darkness of space, with an image of a star in a gap between the title’s last two words. Additional stars and galaxies appear in the background. This image was taken to confirm the perfect alignment of the telescope’s mirrors.

Art director Derry Noyes was the designer for the stamp project using existing art by James Vaughan and an image provided by NASA and the Space Telescope Science Institute.

Sunday, November 27, 2022

Mars with UV-IR blocker and bandpass filter IR742

 


Imaging Mars on Friday, November 25, 2022. My first time use of an UV-IR blocker together with my ASI224MC color camera. The white polar cap is now good visible, which was not the case during my previous imaging sessions. This could confirm that I was imaging in IR and polluting it with visual light. 

Next to this, I used also my new bandpass filter IR742 for the first time. The result is an mono picture with some great details. 


Setting: TAL200K f/8.5, ASI224MC, Barlow x2, ADC
Filters: IR/UV blocker and IR742nm
Software: SharpCap 4, AS3!, CS4, DeNoise AI