Perseid Meteor Shower 2015

Wednesday night August 12th was a great night for viewing Perseid meteors. The promise of a near new moon, and finally a clear night, had me eager with anticipation as I headed into the North Carolina Mounatins for the evening. The air above Grassland Mountain in Marshall, NC was chilly, but clear. The Grassland Observatory owned and operated by the Astronomy club of Asheville hosted the observing event for members and their guests. There were about 4 dozen of us in and around the big roll off roof observatory.  Early in the evening many of us gathered around the 16” SCT and viewed some familiar favorites like Saturn, M13 and M92, and later on the Double cluster (one at a time in the SCT), Uranus and some double stars.

Milky Way above Grassland Mountain-by Alan Davis

Milky Way above Grassland Mountain-by Alan Davis

After a while many of us found our way to blankets and lawn chairs to settle in for what turned out to be a spectacular night for observing meteors.  As the Milky arched above, nearly horizon to horizon, we watched dozens of meteors streak across the sky.  More than a dozen made long arcs over 25 degrees in length, and blazed brighter than Venus at its best. There were even a couple of fireballs which left twisted trains of smoke and broke apart as they disappeared. One interesting note is the sighting of several meteors that seemed to originate form a similar point in the south, perhaps from another minor meteor stream.  I know there are a couple of active ones at this time.  I should have been more focused to determine their origin.

A few of us had binoculars with so I gave a little impromptu guided tour of some of the Summer clusters across the sky.  We started at easy to find stars and then using the “clock” to move field by field to some Summer highlights. It had been a while since I’d done much visual observing with binoculars, so I stuck to the more familiar objects I could easily locate and direct people to. Some of the objects we viewed were M52, M34, M39, the Coathanger, Andromeda Galaxy, M33, the Double Cluster, The Perseus Stellar association by Mirfak, M22, M24 and one of my favorites NGC 7789.  This object was more of a challenge for some to see its soft glow among the stars of Cassiopeia.  We were even able to make out the North American Nebula and Gulf of Mexico.  Its neighbor the Pelican Nebula was faintly visible as well.

My intention that evening was to take some wide field images of constellations, hoping to capture a meteor or two, but technical difficulties got in the way.  I probably enjoyed the evening more, not having to tend to a camera all night.  One of my friends, Alan Davis, was also imaging and caught some nice Milky Way views, but no meteors. He took the image of the southern Milky Way, with the lodge at the top of the mountain in the background. There is sky glow at the horizon, but visually it wasn’t as obtrusive as the image might indicate.  In fact, it was one of the best views I’ve had of our galaxy stretching across the heavens.  Most of the time the star fields look like hazy cirrus clouds in the sky.  That night they looked like storm clouds.  The Cygnus arm was very well defined by the dust of the central bar.  It was the first time I could see mottled definition in the star fields and the complete outline of the Milky Way, like the way it’s depicted in the charts.

Among the meteor showers I’ve observed this one is second only to the meteor storm of the Leonids in November of 2000. It was definitely worth the nearly two hour trip into the mountains.

Thanks goes to Dominic Lesnar, our club President, for hosting this great night (and for the chocolate chip cookies)!

dw

Astronomy Art

One of my friends from the Astronomy Club of Asheville is an accomplished artist. Her name is Diane Chambers.  She works with watercolors. Since she also has more than a passing interest in astronomy, she’s created some beautiful  watercolor paintings inspired by astronomical images.

Bug Nebula- Watercolor by Diane Chambers

Bug Nebula- Watercolor by Diane Chambers

I was lucky enough to win this painting, she donated, of the “Bug Nebula”, at last December’s annual club fund raiser auction at our holiday social.  It’s just one example of Diane’s fine work.  Please visit her website  at http://pdchambers.wix.com/artist#!outer-space/cdh5 and view the rest of her “outer space” gallery and the other beautiful work she’s done.

dw

 

Pardon My Appearance

The last time I created a web presence was for my son’s high school lacrosse team in 1996.  Since that time the features and options for web development have grown exponentially, just like our knowledge of the cosmos.

I had an idea of how I wanted to layout the information on this site, and like most things I found I needed to make adjustments along the way.  For those not making your first visit here, I’ve changed some of the pages and the menu system for navigation.

I’ve eliminated the static pages for asteroids and equipment.  I believe as I add data to hose subjects, reading the page will be cumbersome.  The information on those pages have been moved to the blog posts.  I apologize to those of you who left comments on those pages.  I have no known methodology to transfer that info to the guestbook.  You may reenter your comments in the guestbook, or not, as you choose.  The comments that were there were all general in nature and not specific to the page contents.  The equipment menu item has been removed and the asteroid menu item now directs you to the asteroid categorized posts, since that is one of my major interests.

For easier navigation I’ve removed the calendar from the side menu and replaced it with “Blog Topics”.  This will allow the user to direct their attention to posts for a particular interest.  The “Recent Posts” show all of the latest entries.

Thanks for your patience and support.

dw

Imaging Equipment for the T.D. Observatory

Observatory setup

Observatory setup

I have been imaging with various types of equipment during the past 2 years.  When I complete the observatory I’m building, this is the equipment that will be permanently installed.  In the future I plan to move to a larger telescope.  The Paramount MX+ should have no trouble carrying up to a 14″ SCT.

Paramount MX+ Robotic mount
Explore Scientific ES127ED APO 127mm F7.5 (for now)
Moonlite 2.5” motorized focuser
Atik One 6.0 ccd camera with internal filter wheel
Astronomik RGB filters
Orion 50 mm Guide Scope
SBIG ST-I Guiding camera

Asteroid 2004BL86

Asteroid 2004BL86, a fast mover, passed within 3 Earth-Moon distances on January 27, 2015.  I captured its passage through Cancer using a Canon 60da DSLR mounted on my ES 127mm refractor.  The video above is combination of about 265 individual 1 second exposures at ISO6400. That was the only way I could capture its motion without an elongated image of the asteroid.

The image below shows the track of the asteroid.  It was produeced by stacking all of the frames together on the background stars.  The gaps you see are frames that were omitted because of defects or delays between images.  The asteroid was quite dim so each frame had to be enhanced in Photoshop with levels and curves to brighten it and improve the contrast.

Asteroid  2004BL86 on 1-27-15