SSTV ISS

http://ariss-sstv.blogspot.com/

Blog of the SSTV schedule and other related information.

The Making of my Andromeda M31 astropicture

I made a powerpoint presentation about the learnings of the making of my astropicture M31 Andromeda Galaxy. Click at the picture to download the powerpoint presentation.

Update of my Astromical Links

I made an update of my most used websites. Those links can be found on my blog via this link.

New Bright Comet Atlas C/2020 M3

After the great comet Neowise C/2020 F3 this summer there is now good news. We will be seeing again a bright Comet, Atlas C/2020 M3. Not as bright as C/2020 F3 but still worthwhile to get out. It's currently mag 8.5 and increasing. The comet was discovered at magnitude 19 on June 27, 2020, by the Asteroid Terrestrial-Impact Last Alert System or ATLAS..

It's currently visible in constellation Lepus and moving toward Orion. For more information see The SkyLive.

VVS Deepsky Dag November 7, 2020 - online via Youtube

This year, the Annual meeting - "VVS Deepsky Dag" - will take place on November 7, 2020. Beside a limited number of fysical attendees, the meeting will be broadcasted via the Youtube channel - see this link 

The agenda is available. There is agood mix of both theoretical as practical aspects. 

Moon-Jupiter-Saturn Close encounter

This evening, the moon close together with Jupiter and Saturn. 

Twin Paradox Minkowski Diagram

A space time diagram or Minkowski diagram made of the Twin Paradox. I used my old fashioned graph paper to draw both "twin" situations.

Left : earth twin "leaving" the rocket twin
Right : earth twin "staying, and the rocket heading away (and returning)
Both believe  the other one is younger as they "see" the other one moving away.