Archive for SOHO

Solar Observing Online

Posted in amateur astronomy, astro blogs, astronomy eduction, observing, software, space, Student Astronomy, sun, urban skies with tags , , , on April 19, 2010 by bellaireastro

The sun will become more and more active as it the 11-year solar cycle swings from the slow and quiet to the loud and wild. You can follow along using some online solar observing tools. SOHO is still my favorite but Big Bear offers some excellent ground based views and the newer STEREO spacecraft has 3-D views and its own iPhone app!

Check em out…

Sunspots are back!

Posted in IYA, observing, robotic astronomy, space, stellar astronomy, sun, urban skies with tags , on July 5, 2009 by bellaireastro

Yesterday while enjoying the July 4th holiday with some grilling outside I setup a borrowed Coronado PST to take a look at the sun and there was an active sunspot group!

Later I setup my 8″ Dobsonian with a solar filter and between the 2 scopes managed to get a few shots of the sun at 2 different wavelengths and the sunspot group is visible.

H-Alpha solar image 7-4-09
Visible solar image 7-4-09

Solar images 7-4-09

The SOHO instruments caught the entire thing from space in multiple wavelengths but here is just one:

from SOHO
from SOHO

from SOHO

The sun is an amazing astronomical target when it can be done safely. Our sun goes through an 11-year cycle and we have been at the minimum in terms of activity for a couple of years now. It looks like the solar minimum is finally over.