logo
g
Beauty & Self
Books & Music
Career
Computers
Education
Family
Food & Wine
Health & Fitness
Hobbies & Crafts
Home & Garden
Money
News & Politics
Relationships
Religion & Spirituality
Sports
Travel & Culture
TV & Movies

dailyclick
Bored? Games!
Nutrition
Postcards
Take a Quiz
Rate My Photo

new
European Travel
Action Movies
Bible Basics
Houseplants
Romance Movies
Creativity
Family Travel


dailyclick
All times in EST

Full Schedule
g
g Astronomy Site

BellaOnline's Astronomy Editor

g

March 9 2012 Astronomy Newsletter


Hi everybody!

Here's the latest article from the Astronomy site at BellaOnline.com.

Northern Lights Planetarium
Tromso, far to the north of Norway, attracts summer visitors to see the midnight sun and winter visitors to see the aurora borealis. The Northern Lights Planetarium is the northermost planetarium in the world. It's worth a visit at anytime, but extra welcome if it's too cloudy to see the sky.

http://www.bellaonline.com/articles/art29538.asp

Lots of astro-birthdays this week!

(1) On March 6, 1787 Joseph Fraunhofer was born. He was the greatest optical glassmaker of his day and his lenses included high quality objective lenses for telescopes. Fraunhofer also invented the spectroscope, and dark absorption lines in the spectrum of the Sun are named Fraunhofer lines in his honor. You can see a visible light spectrum with the Fraunhofer lines here: http://upload.wikimedia.org/wikipedia/commons/2/2f/Fraunhofer_lines.svg

(2) There are two birthdays on March 7th.

In 1792 John Herschel was born. The son of William Herschel discoverer of Uranus he was a distinguished astronomer, mathematician, chemist and pioneer of photography. When he died he was given a state funeral and buried in Westminster Abbey near Isaac Newton. You can learn more about William Herschel and his sister Caroline here: http://www.bellaonline.com/articles/art48626.asp

Henry Draper was born in 1837. He was a doctor by profession and an amateur astronomer and chemist. His father John William Draper had taken the first astronomical photograph in North America and Henry was another pioneer of astrophotography. Henry Draper took the first photograph of the Orion Nebula and went on to photograph stellar spectra. He was only 45 when he died, but his widow Anna gave a sum of money to Harvard Observatory for a star catalog as a memorial to him. Annie Cannon (http://www.bellaonline.com/articles/art28074.asp) did most of the star classification for the Henry Draper Catalog and the HD numbers are still in use. You can find out more about debt astronomy owes photography here: http://www.bellaonline.com/articles/art19545.asp

(3) On March 9, 1564 David Fabricius was born in what is now Germany. He was a churchman, but also had an interest in astronomy. Fabricius discovered the first variable star, Mira. Observing with a telescope, he and his son Johannes found sunspots on the Sun and David Fabricius used them to provide the first evidence that the Sun rotates on its axis.

(4) Urbain LeVerrier was born on March 11, 1811. He was the French mathematician who calculated the position of the unknown planet that was disturbing the orbit of Uranus. He sent his calculations to Johan Galle at the Berlin Observatory who found the planet that came to be called Neptune. You can find out more here: http://www.bellaonline.com/articles/art39799.asp

I wish you clear skies. Please visit astronomy.bellaonline.com for even more great content about Astronomy.

To participate in online discussions, this site has a community forum all about Astronomy located here -http://forums.bellaonline.com/ubbthreads.php?ubb=postlist&Board=323

I hope to hear from you sometime soon, either in the forum or in response to this email message. I welcome your feedback!

Do pass this message along to family and friends who might also be interested. Remember it's free and without obligation.

Mona Evans,
Astronomy Editor BellaOnline
.




Unsubscribe from the Astronomy Newsletter

Online Newsletter Archive for Astronomy Site

Master List of BellaOnline Newsletters



g

For FREE email updates, subscribe to the Astronomy Newsletter

g features
Red Dwarfs - Ten Facts for Kids

Life and Death of the Sun

Triton Captive Moon of Neptune

Archives | Site Map

forum
Forum
email
Contact

Past Issues
memberscenter


vote
Poetry
Daily
Weekly
Monthly
Less than Monthly



BellaOnline on Facebook
g


| About BellaOnline | Privacy Policy | Advertising | Become an Editor |
Website copyright © 2014 Minerva WebWorks LLC. All rights reserved.


BellaOnline Editor