Tag Archives: White Dwarf

Free Astronomy Magazine – January-February 2020 Issue Available For Reading And Download

The most recent issue of Free Astronomy Magazine (January-February 2020) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the issue).

Feature articles this month include:

(1) a great read on the history of the discovery of the (dwarf) planet Pluto

(2) SOFIA confirming the collision of two planets in an old star system

(3) details about the landing site selection of Jezero Crater for Mars 2020 (with an image from the article featured about and downloadable from www.jpl.nasa.gov…PIA23239).

For those wanting a quick look at what the issue has to offer, the Table of Contents is reproduced below.

The web browser-readable version: www.astropublishing.com/1FAM2020/

Jump right to the PDF download (14 MB): January-February 2020

Free Astronomy Magazine – July-August 2017 Issue Available For Reading And Download

Greetings, fellow astrophiles!

The most recent issue of Free Astronomy Magazine (July-August, 2017) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the issue).

Free Astronomy Magazine was featured as the first of a series of articles on great free online content for amateur astronomers (see A Universe Of Free Resources Part 1) and we’ll be keeping track of future publications under the Online Resources category on the CNYO website.

You can find previous Free Astronomy Magazine issues by checking out our Free Astronomy Magazine Category (or look under the Education link in our menu).

For those wanting a quick look at what the issue has to offer, the Table of Contents is reproduced below.

July-August 2017

The web browser-readable version of the issue can be found here:

July-August 2017 – www.astropublishing.com/4FAM2017/

For those who want to jump right to the PDF download (27 MB), Click here: July-August 2017

Free Astronomy Magazine – September-October 2016 Issue Available For Reading And Download

Greetings, fellow astrophiles!

2016sept8_freeastroThe most recent issue of Free Astronomy Magazine (September-October, 2016) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the issue).

Free Astronomy Magazine was featured as the first of a series of articles on great free online content for amateur astronomers (see A Universe Of Free Resources Part 1) and we’ll be keeping track of future publications under the Online Resources category on the CNYO website.

You can find previous Free Astronomy Magazine issues by checking out our Free Astronomy Magazine Category (or look under the Education link in our menu).

For those wanting a quick look at what the issue has to offer, the Table of Contents is reproduced below.

September-October 2016

The web browser-readable version of the issue can be found here:

September/October 2016 – www.astropublishing.com/FAM-5-2016/index.html

For those who want to jump right to the PDF download (27 MB), Click here: September-October 2016

2016sept8_fam-5-2016-3

CNYO Brochure – A Guide For Solar Observing

Greetings fellow astrophiles!

In preparation for upcoming 2013 lecture and observing sessions, we have put together instructional brochures to help introduce the Night Sky to attendees. The third of these, entitled “A Guide For Solar Observing,” addresses our solar observing sessions and is provided below in PDF format. This brochure will be available at our combined lecture/observing sessions, but feel free to bring your own paper copy (or the PDF on a tablet – but have red acetate ready!).

Download: A Guide For Solar Observing (v6)

NOTE: These brochures are made better by your input. If you find a problem, have a question, or have a suggestion (bearing in mind these are being kept to one two-sided piece of paper), please contact CNYO at info@cnyo.org.

NOTE 2: We’d like to thank the great solar photographer Alfred Tan for the use of his solar image in this brochure. For a regular feed of his stellar (pun intended) solar views from Singapore, we encourage you to subscribe to his twitter feed at: twitter.com/yltansg.

2013may1_htnsm_pg1

2013may1_htnsm_pg1

A Guide For Solar Observing

Solar Safety: Read Me First!

“NEVER Look At The Sun Through ANY Eyepiece Without Protection!”

Pre-Observing Observing Tips

“The Sun is a blindingly bright object all by itself – and your observing session has you constantly looking in its direction!”

Sun Cross Section – 697,000 km Radius

“Radiative Zone: 348,000 km thick, energy from the core is passed through as photons (light) – thousands of years for light to pass through it from the core!”

The Solar System To Scale

“The solar diameter in “planets” is listed.”

More Information About The Sun

“The Sun is the reason why we’re here!”

And Just Why Is The Sky Blue?

“At sunrise and sunset, most of the blue light has been scattered by air molecules, so more of the Sun’s longer wavelength light (red and orange) makes it to our eyes (“R”).”

What You’ll Observe On The Sun

“The savvy (or lucky) observer may see a plane (1), a satellite, a planet (“transit” of Venus (2) or Mercury), or the International Space Station (3).”

About The Sun (History & Future)

“The Sun is a spectral type G2V star in the Orion Arm (Orion Spur) of the Milky Way, some 25,000 light years from the Milky Way’s center and, on average, 8 light minutes away from Earth.”

What You’ll See Through Solar Filters

“All other filters work by picking out a single wavelength (shade of one color) from the entire visible spectrum (ROYGBIV – red, orange, etc.), allowing only that color to pass through to your eye.”