Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Picture of the Day

The Sun

Contributed by John Chumack from Dayton, Ohio Click photo for larger view
Ohio imager John Chumack sent in this report: X-ray class flares are erupting from sunspot 1748. There have been four in the past two days! The Sun is still active! After receiving alerts from NASA’s 3-D Sun app notifying me of the flares, I took a quick look at the Sun through a Hydrogen-alpha filter and then captured the new sunspot 1748 with crackling loop flares coming around the eastern limb. The large sunspot is #1745. I also captured a very long prominence on the western limb. Wow! Really nice to see the Sun ramping it up a bit. (Lunt 60mm 50F Hydrogen-alpha telescope, DMK31 CCD camera, 1/387-second exposure, taken May 13, 2013, from Dayton, Ohio)
Picture of the Day Archive Subscriber Only Content
Search archived photos
Categories: Keywords:
12345678910...>>
 
The Sun
Leo I
The Horsehead Nebula
NGC 2170
Orion the Hunter
The California Nebul...
A ghostly aurora
NGC 2683
The Cocoon Nebula
The active Sun
The Orion Nebula
The Beehive Cluster
The Lobster Claw
The Cocoon Galaxy
The Milky Way
The Full Moon
The region of Antare...
The Eagle Nebula
M15
The Fireworks Galaxy
12345678910...>>
SEARCH SITE
Subscriber Only Access
Subscriber Only Content
Look for this icon. This denotes premium subscriber content. Learn more »
Become a Member of Astronomy.com
Register today for access to more valuable resource information.
Interact in our forums, comment on articles, receive our newsletter and much more!
Not a member?
Subscriber and Member Login
Password
Remember me