Finally, More Images

Hello folks. I am sorry for the lack in posting, but weather and other factors have kept my cameras from imaging the night sky lately. That came to an end last Saturday night, with a fairly good imaging run on the Blue Ridge Parkway. The sky was clear and rather dry, but the moderate winds kept my imaging to wider fields of view. I also did some visual observing with my 15" Dobsonian reflector StarGazer Telescope. A good friend and fellow SCAN member, Joe, was there as well, with his son Thomas and his 13.1" Coulter Dobsonian reflector. We observed several cool things while the cameras were imaging, including a "same field" view of Jupiter and Neptune. That was a first for me. I had to shut down imaging when some clouds rolled in from the northwest, but not before I got some nice shots. I hope you like them.

This image is of M20, the Trifid Nebula (Top), and M8, the Lagoon Nebula (Bottom). These nebula are located in the "steam" coming out of the spout in the teapot asterism in the constellation Sagittarius.
Camera - Hap Griffin Modified Canon EOS 350D
Lens - Sigma 300 MM f2.8 Lens, set at f2.8 - ISO 1600 - (480MM effective focal length)
40 Minutes of exposure (20 x2 minutes)
AstroTrac TT320X Astrophotography mount for tracking

This image is of the Rho Ophiuchi region pf the sky. The bright star in the lower left is alpha Scorpii, Antares. The triple star system in the upper right, surrounded by blue nebulosity is Rho Ophiuchi. You can also see M4, a Globular Cluster, to the right of Antares.
Camera - Hap Griffin Modified Canon EOS 350D
Lens - Sigma 300 MM f2.8 Lens, set at f2.8 - ISO 1600 - (480MM effective focal length)
1 Hour of exposure (30 x2 minutes)
AstroTrac TT320X Astrophotography mount for tracking

This image is of the center of the Milky Way Galaxy, as we see it from out earthly viewpoint. The light polution from Rocky Mount, VA and Martinsville, VA is visible above the trees. The trees blurred because the mount is following the stars, so earthbound objects blur in the image.
Camera - Canon EOS 40D
Lens - Sigma 12-24MM f4.5-5.6 Wide Angle Zoom Lens, set at f4.5 - ISO 800 - (19MM effective focal length)
40 Minutes of exposure (20 x2 minutes)
AstroTrac TT320 Astrophotography mount for tracking

So Goes The Weather

Well, the one thing that makes astrophotography difficult around here is the weather. That is why alot of astrophotographers live in the desert southwest, or have remote observatories out there. We have had a very wet spring, and even when it was clear, the atmosphere has been so unstable that shooting images of the sky is near impossible. I have to take the good with the bad, and if I want to continue to live in these beautiful mountains, I have to put up with the unstable weather patterns. I hope to get some weather breaks soon, so keep a lookout for new images soon.

Comet Lulin makes an appearance

Comet Lulin made an anticipated appearance in the night sky this past week, and we had a few clear nights to check it out. I took an opportunity to head up on the Blue Ridge Parkway on Tuesday evening (2/24/2009) to make some attempts to photograph this comet. I will not see it again in my life, as it will come around again over 1000 years from now. It glows green in color, mainly due to the outgassing of a cyanode component of the comet. It is right on the verge of naked eye visibility if you look at the sky at a dark site, away from Roanoke's ridiculous amount of light pollution. On that point, If the citizens of Roanoke want to reduce their taxes, as well as their personal electricity costs, quit wasting electricity by illuminating the night sky.

This image is of Comet Lulin

Camera - Canon EOS 40D
Lens - Sigma 300 MM f2.8 Lens, set at f3.5 - ISO 1600 - (480MM effective focal length)
20 Minutes of exposure (10 x2 minutes)
AstroTrac TT320X Astrophotography mount for tracking



This image is of the Beehive Cluster, or "Praesepe" in the constellation Cancer. It is an open cluster of mainly young, hot blue stars. It is classified as Messier 44 and NGC 2632. This cluster lies about 575 light years from earth.

Camera - Canon EOS 40D
Lens - Sigma 300 MM f2.8 Lens, set at f3.5 - ISO 1600 - (480MM effective focal length)
18 Minutes of exposure (9 x2 minutes)
AstroTrac TT320X Astrophotography mount for tracking

Blustery January

It has not been a good month for astrophotography. The thing about the winter months is that when you get clear skies, it is usually after a cold front moves through. That almost always introduces winds, and usually winds flowing at a pretty decent clip. When you do get a night with clear skies and no wind, the problem then becomes radiative cooling of the surface of the earth. This causes the waves of heat that you see in the summer over hot asphalt or sand. The seeing is bad under these conditions, and in astrophotography, stars show up as ill-defined blobs. So, alas, I will patiently wait for a good, clear, still night to try for more night images..

Happy New Year from the Astronomy Dude

Hello everyone,

I just wanted to wish you all a Happy and Prosperous New Year. Be safe.

What a nice night for wind

The Clear Sky Clocks (www.clearskyclock.com) were showing a clear sky for last night. I decided to prep the Astronomy Vehicle and head up on the mountain. As soon as I hit the top of the mountain, the wind became very notable, and slightly angry. I decided to proceed to the observing site, hoping that the wind would not be as bad on that side of the elevation. Upon arrival it did seem to be a bit protected, so I started to set up. I had the heat going and several tripods set when the first big gust came through. I figured it would be an occasional thing, so I continued to set up under dark skies, while the thin crescent moon continued to set. Suddenly, in the distance, I heard a truck driving down a nearby highway. It was odd because I have never heard a truck driving down that highway before tonight. Then, as the trees started to rustle and bow, I realized it wasn't a truck but a large gust front heading my way. I ducked inside the warm bus just in time as the massive gust of cold wind slammed into the vehicle and rocked it steadily for almost a minute. That gave me all the time I needed to decide that I wasn't going to be able to do any astrophotography in these conditions and observing would be in question as well. So I loaded the tripods back up into the vehicle, turned off the heat, and headed back down the mountain. That wasn't the first time that happened, and it certainly won't be the last. But, nevertheless, it is hard to leave clear skies, especially when they are hard to come by in this area.

Merry Christmas to all

Merry Christmas to everyone. I hope you all have a great holiday season, and you take some time to gaze at the heavens.

I was awarded an Astronomy Grant

In case no one noticed, it has been rather cloudy lately, so the astrophotography opportunities have been very slim. I fully intend on taking advantage of any opportunities as they come available. I received great news this month. I received a grant from a group in California, called the Riverside Telescope Makers Conference (RTMC). It is called the Clifford W. Holmes Grant, and it is given to people who are actively involved in astronomy outreach. My submission for the grant was through my use of my Astronomy Mobile Outreach Vehicle (AMOV). I use the vehicle to help me carry telescopes and equipment to astronomy outreach programs in the area. I will be purchasing a solar telescope with this grant so I can expand my solar programs. I am pleased that this group has recognized my efforts, and I thank them for their assistance in helping me bring astronomy to the Roanoke Valley. The solar telescope will also be used at outreach events held by the Star City Astronomy Network, a local group of astronomers dedicated to observational astronomy, and astronomy outreach.
Keep hitting the blog for new images as I shoot the night skies.

Images from Late November

The stars and deep sky objects of winter are starting to make their way into the night sky. Among some of these objects are the brightest star in the night sky, Sirius, or alpha Canis Majoris. Also, one of the few naked eye nebulae, M42, the Orion Nebula, is prominent as the center star in the sword of the constellation Orion, the Hunter.
Of course, the beautiful open cluster, Pleiades (M45), is prominent in the zodiacal constellation, Taurus, the Bull.
Still in the sky is the Andromeda Galaxy, M31, overhead and working its way into the western sky late in the evening. Below are some images I shot on November 26, 2008.

This image is of the Double Cluster in the constellation, Perseus. You can see the two distinct clusters in this image.
Camera - Canon EOS 40D
Lens - Sigma 300 MM f2.8 Lens, set at f3.5 - ISO 800 - (480MM effective focal length)
15 Minutes of exposure (15 x1 minutes)

AstroTrac TT320X Astrophotography mount for tracking

This image is of M45, the Pleiades Cluster in the constellation Taurus. The gases around the stars reflect the starlight. Therefore, the nebulosity around the stars are called a reflection nebula.
Camera - Canon EOS 40D
Lens - Sigma 300 MM f2.8 Lens, set at f3.5 - ISO 800 - (480MM effective focal length)
30 Minutes of exposure (10 x3 minutes)

AstroTrac TT320X Astrophotography mount for tracking

The center of this image is M42, the Orion Nebula in the constellation Orion. The gases around the stars are excited by the radiation from the embedded stars, and glow. Therefore, the nebulosity around the stars are called an emission nebula. It is a stellar nursery, and the bright stars in the center of the nebula are "baby stars".The Orion Nebula is to the right, and the "Running Man" Nebula is to the left. Notice the difference in the colors of these two nebulae. The "Running Man" Nebula is a reflection nebula, usually indicated by the bluish color.
Camera - Hap Griffin Modified Canon EOS 350D
Lens - Sigma 300 MM f2.8 Lens, with a matched 1.4x Teleconvertor, set at f4 - ISO 800 - (672MM effective focal length)
5 Minutes of exposure (10 x30 seconds) +
20 Minutes of exposure (10 x2 minutes) +
27 Minutes of exposure (9 x3minutes)
Total of 52 munites of exposure
AstroTrac TT320 Astrophotography mount for tracking

This image is of IC 2118, the Witch Head Nebula in the constellation Eridanus. This is also a reflection nebula, with the dust reflecting the light from the bright, supergiant star, Rigel (Beta Orionis), the lower-right star in the constellation Orion. This reflecting dust lies 40 light years from Rigel, and about 700 light years from us.
Camera - Hap Griffin Modified Canon EOS 350D
Lens - Sigma 70-200MM f2.8 zoom lens, set at 200MM, f4 - ISO 800 - (320MM effective focal length)
30 Minutes of exposure (10 x3 minutes)
AstroTrac TT320 Astrophotography mount for tracking

A Good Night on the Mountain

Ahhhhh. Finally the clouds had cleared, the moon was close to new, and the sky was rather stable. It turned out to be a good night for astrophotography last night. I started shooting around 6PM and shot constantly for six hours, until the winds started to kick up enough to possibly buffet the cameras and ruin exposures. No two ways about it, it was cold, but stable nights any time of the year in this area should be taken for all they are worth.
No, I do not have the images ready. It takes one to several hours per image to stack, process, and finalize each photo. So, I hope to have them here, on this blog, soon.