Posted on Wednesday, July 20, 2016
By Kadri

Living Among Giants: Exploring and Settling the Outer Solar System by Michael Carroll

Michael Carroll’s „Living Among Giants“  Explorer the other solar system from the perspective of it being a potential destination for manned missions, colonization and as a vacation destination in the future.

The book is divided into three parts, all of which are excellently illustrated.

The first part of the book looks at the solar system in general, how the planets formed, and the space missions that have sent us back data about the other solar system from the Pioneer spacecrafts to Cassini and a few possible missions that are still in the future.

In the second part of the book we have a much closer look at the giant planets, what distinguishes them from one another and about the discovery of their moons and different aspects of them. Naturally more attention is on the larger moons, such as the four Galilean moons, the fascinating Titan and Triton. The overview gives the moons more of a character so you can see that they’ve all got something interesting an special about them.

The final part of the book looks at how we might get there – what kind of technology is necessary, and what kind of options do we already have for sending spacecrafts there – so you can get a quick overview of different propulsion systems that might for example eventually take the first manned mission to Titan.


Living Among Giants is a fascinating book with excellent detours into what some planetary scientists would like to visit on different moons – what views would be the coolest? What sort of cruise to take to have the best views of Saturn’s rings, or what kind of crater, chasm, cryovolcano or any other feature would be interesting to explore.

Labels: , , , ,

Posted on Wednesday, July 20, 2016
By Kadri

The Sun in H-Alpha on July 19th, 2016. Two large active areas are visible on disk, and one large prominence on the edge. Credit: Kadri Tinn

Labels: , ,

Posted on Monday, July 18, 2016
By Kadri

Labels: , ,

Posted on Monday, July 18, 2016
By Kadri
Observing an astronomical object through a telescope seems like something you might not really have to train or learn, but standing by the side of the telescope and constantly telling people to look in longer, change the position of their eye, etc. made me want to put together my view of what every different kind of observer sees as they look through a H-Alpha solar Telescope (Coronado SolarMax II in the case of these images).
How have you seen this Sun? Credit: Kadri Tinn

To begin with (left to right and from the top down):


  • There are a lot of people who despite your efforts don't want to look through the telescope despite telling them that it's perfectly safe.
  • Then there are the people who catch a glimpse of the Sun from a distance from the eyepiece, to make sure they're safe - they'd probably see an out-of-focus image of the Sun and no features. And they'd describe it as a red dot
  • Naturally in a lot of locations you'd happen to observe the Sun when it's not quite clear. But there are still enthusiastic people who want to look in for a second and not wait for clouds to pass - occasionally they could see some sunspots or filaments, but it's mostly just black clouds.
  • For the more leisurely observer, who has more than just a couple of seconds to spare - they'd notice the prominences on the edges, and any large sunspots.
  • For the thorough observer who might want to stay observing for hours - they'd see the tiniest sunspots, plages and filaments, prominences etc.
  • And finally we come to the astrophotography enthusiast, who mostly doesn't see much of the sun through the eyepiece, but rather on a camera or computer screen - the colors will of-course get changed, and so will contrast, but they'd see all the details (including dust on their camera sensor).



Labels: , , , ,

Posted on Monday, July 18, 2016
By Kadri
The Sun's disk appeared empty of spots for a rather large stretch of days, only to be again covered in spots by now. Here's an image of, when there still weren't that many dark features to see on last weekend.

The Sun in H-Alpha on July 10th, 2016. Credit: Kadri Tinn

Labels: , ,

Posted on Tuesday, July 05, 2016
By Kadri
Press briefing at JPL about the Juno mission, (that by now has succesfully done an engine burn and reached orbit around Jupiter!).

Labels: , , ,

Categories
Skywatch    News    Pictures    Videos    Events    Northern Lights    NASA    ESA    ISS    Jupiter    Curiosity    Mars    Moon    Lyrids    Super Moon    Venus Transit    Book Review    Games   
Previously...
Archives
Upcoming Events
Submit your Photos
Have you taken interesting photo of the night sky and would like to share it with us?
Send in your photos to below email, with as much details possible relating to the photo.
AstroMadness.com has created this privacy statement in order to demonstrate our firm commitment to privacy.

Information we collect:
We may log IP addresses and/or drop cookies to prevent abuse of our website and/or to enhance services.

Third Party Advertising:
Ads appearing on this website, are delivered to you by Google Adsense and other third-party advertising companies.

Information about your visit to this site, such as number of times you have viewed an ad (but not your name, address, or other personal information), is used to serve ads to you on this site. These third parties and or AstroMadness.com may be placing and reading cookies on your browser to collect information, in the course of ads being served.

You may manage your cookies via your web browser and if you would like more information about this practice and to know your choices about not having this information used by these companies, please click here http://www.networkadvertising.org/optout_nonppii.asp

Google, as a third party vendor, uses cookies to serve ads on your site.

Google's use of the DART cookie enables it to serve ads to your users based on their visit to your sites and other sites on the Internet.

Users may opt out of the use of the DART cookie by visiting the Google ad and content network privacy policy.

Advertisers and Third Party Cookies :
In the course of serving advertisements to this site, our third-party ad server, Google Adsense, intergi, or individual advertisers may place or recognize a unique cookie on your browser. Cookies received with banner ads are collected by our ad company, and we do not have access to this information.

External Links:
AstroMadness.com contains links to other sites. AstroMadness.com is not responsible for the privacy practices or the content of such Web sites.