Lunar Eclipse Time Lapse 10-08-2014

Here is a time lapse of the Lunar Eclipse of Oct 8, 2014:

Lunar Eclipse - Oct 8, 2014

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October 8, 2014, about 2 a.m., Gloria and I drove to Hillsdale Lake, KS, about a 20 minute drive from my home in Cleveland, MO. I set up my time lapse equipment and two tripods with my cameras to take pictures of the second Lunar Eclipse of the year. Clouds were lying low in the southwest, but clear over the rest of the sky and the Full Moon was shining brightly. At 4:17 a.m., the first bite from the shadow of the earth was taking place. Slowly, as the sky got darker, and more and more of the moon was being eclipsed by earth's shadow, we watched the stars appear above us.

Around 5:25, the moon turned to a beautiful, red ocher, brighter on one side, this being due to the fact that the moon did not go through the exact center of the earth's shadow. The picture above was taken with my 300mm f/4 Canon lens and Canon Xti. It is actually two images combined to show what it looked like in my binoculars. The planet Uranus was easily visible in binoculars. The picture of the moon was 4 seconds at ISO 400 and the stars were shot for 15 seconds. It is impossible to show this with one shot, so combining them is the only way.

Above, is the view across the lake, take with my 18mm f/3.5 Canon lens and the same Xti Canon camera. The exposure was 10 seconds at ISO 1600. This is also a double exposure, with the moon exposed for 10 seconds, but with the ISO at 200, essentially 3 stops slower.

This image is one taken from the set of time lapse pictures. The exposure for this shot was 25 seconds with a 10mm f/3.5 lens and my Canon T4i at ISO 3200. The longer exposure and higher ISO setting bring out many more stars, including the Andromeda galaxy at upper right.

A truly wonderful night. The only thing I could hear was an occasional fish jumping in the lake. At one point I watched a raccoon walk along the edge of the lake not noticing me, until I moved slightly, then it scooted into the bushes.

The next Lunar Eclipse will occur September 28, 2015.

Blood Moon and Great Blue Heron

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The first of four consecutive Lunar Eclipses has come and gone (see the end of this article to learn about the other three). Above is an excellent image by my good friend Jim Zanardi. I have created a time lapse video from my images and put it on YouTube here.

My wife, Gloria, and I spent the whole night watching and photographing it, April 14-15, 2014. It was an awesome sight, but wow it was cold! Temperatures were around 25 degrees and there was frost over everything, including my photo equipment. But I'm used to that and prepared for it. I have a dew heater, connected to a 12-volt battery, wrapped around the lens to keep the optics slightly warmer than the air around it.

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We arrived at the site, Middle Creek Lake, just south of Louisburg, KS, around 6 p.m. I wanted to set up my time lapse rig in the daylight so that I wouldn't make any mistakes. Yeah, sure! I made plenty of mistakes, but I didn't find out about them until the next day. We had scouted out the lake a week before and found a nice place I could shoot the eclipse from. I had to park my car about 150 feet from the shore line, so I made a few trips carrying my gear. A cold wind was blowing from the north, but it was totally clear. I hoped the wind would die down as it usually does at night in the Mid-West.

I set up my new toy, a Dynamic Perception Stage Zero controller and rail that I purchased from my good friend and photographer, Wayne Thompson. I attached my iOptron Sky Tracker on the rail and my Canon 4Ti on top of it. My plan was to shoot the time lapse with my 10-22 mm lens at 10mm and have the Sky Tracker pan from left to right following the Moon and the rail move from West to East. After taking a few pictures of my set up in front of the lake I waited for the Moon to rise above the tree line.

Once I saw the Moon I started shooting a series of images with my 300mm f/4 lens on a tripod. I took a total of 166 images about every 5 seconds (counted in my head) hoping that was about right. It turned out okay, but maybe a shot every 2 to 3 seconds would have been smoother.

 I also took several wide angle pictures of the Moon rising with the lake as the foreground. Several ducks swam by and a reflection of moonlight on the lake created a peacefully serene scene.

Before the eclipse started and the moon was glaringly bright there was a surprise visit by a Great Blue Heron. I did not know about this until a few days later. Here are two of the best pics where he held still for the 30 seconds it took to get the image. He is right behind the piece of driftwood.

Right around totality I was looking at the eclipse with a pair of binoculars. I took them away from my eyes and moments later I saw a bright meteor flashing downward. This image shows the meteor and Mars to the upper right of the eclipsed moon. The streak at lower right is that of an airplane. The moon is pasted into the picture from one I took with telephoto lens to make it look more like what we actually saw that night.

In the above photo the Great Blue Heron and his shadow once again makes its appearance (lower left next to the driftwood). Here I have left the moon's image alone to show that a 30 second exposure wipes any detail out completely. Of course, a much shorter exposure would show detail on the moon and everything else would be way too dark.

The color changes between all of the images during the eclipse has not been modified. The color temperature setting on my camera was set to daylight through out and the color changes are actual changes from the light of the eclipsed moon.

Mistakes Not To Do The Next Time

Mistake #1. I started the time lapse sequence around 9 p.m. after the Moon had already risen. My plan was to shoot 30 second exposures with an interval of 2 seconds all night long. A few days before the event, I had taken some test shots of the almost full moon from my backyard to see what my exposures should be. Those tests told me that I could get away with shooting 30 seconds at f/3.5 and ISO 3200 all night. The Moon before eclipse would be really over exposed, but I could fix that afterward in Lightroom by lowering the exposure setting to bring out detail in the sky and clouds. But my test exposures on the evening of the event showed much more overexposure, so I kept the 30 second exposure but lowered the ISO to 1600, essentially, decreasing the exposure by 1 stop. As it turned out, even this was too much overexposure.

Mistake #2. I had never used the Dynamic Perception system until that night, but had done some test with it indoors to learn how to use it. Unfortunately I accidently put the drive belt on a little weird and it did not track like it should have.

Mistake #3. There are two ways to make the camera shoot a time lapse sequence with the rail. Option #1: Set up the controller to move camera the intended distance along the rail and have the camera settings set to shoot a 30 second exposure at the end of the move, then the controller delays 2 seconds to allow the image to download to the card before making another rail move. Option #2: Set up the controller to do all of the above and just set the camera to Bulb. The second option seemed the simplest. At home it seemed to work, but on the field it did not. What happened was the camera took a 30 second exposure, the rail moved and waited 2 seconds then sent a signal to the camera to take another exposure, but instead, the camera skipped the next shot. The camera did not have enough time to download the last image so it waited another 30 seconds until the controller released the last signal to shoot. So my intervals between shots were 34 seconds instead of 2 seconds. This made a rather quick and jittery time lapse, which is what you see in the final video. I am using a very fast card in my camera (Sandisk Extreme 63 G) which, on tests without the Dynamic Perception controller, allows me to shoot images with 2 second intervals easily. Apparently with the controller controlling the shots, the interval needs to be longer.

Mistake #4. I've been wanting to use some software that I've been reading about, but haven't had the time to try it out. I purchased and downloaded and ebook on using the software after the eclipse. My mistake was in not doing this before the eclipse. It would have corrected mistake #1. The software is LRTimelpase, by Gunther Wegner. In concert with Lightroom, it is an excellent piece of software for editing, grading and rendering a time lapse sequence. One very good part of the software is for what is known as "Holy Grail Day to Night" shooting. With this software, you can adjust exposure time or ISO settings during shooting to compensate for changing light conditions (which can be as much as 22 stops), then smooth out the transitions during the processing of the sequence.

Luckily, I was able to use the images I got to produce a video, although it could have been a lot better. I consider this a learning experience, so that for the next eclipse coming on October 8, 2014, I will be a little bit better prepared.

As I mentioned at the beginning, this was the first of four lunar eclipses within the span of 2 years. This is known as a tetrad. The last time we had a tetrad was in 2003-2004. The next tetrad will not happen for another 20 years, 2032-2033. There are several religious groups making a big to do about this current tetrad, but in fact there is nothing special about it. In the far distant future there will be no tetrads at all. To read more about this see article this by Fred Espenak.

Fall Colors 2013

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In October I found this wonderful driveway to someone's home lined with beautiful Fall colors.

Two Comets on a Moonlit Morning

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Rick Henderson,the president of my astronomy club, the Astronomical Society of Kansas City, put out a note on our Yahoo-Group that he was going out to Powell Observatory to look at comet Ison on Monday morning (Nov. 18). As it so happened, I was planning on trying to photograph the comet that morning also, so I headed out about 3 a.m. and arrived at the parking lot next to the observatory (the parking lot has a good view to the eastern horizon). I set up two cameras, one pointing to the southwest setting it to shoot wide angle images of whoever showed up. The picture above shows me setting up my 300mm lens and camera on my iOptron Sky Tracker and tripod. Powell Observatory can be seen in the background as well as the bright Full Moon with Orion to it's left.

By the time comet Ison was high enough to see, a crowd started to gather. About 11 ASKC members showed up with various binoculars and telescopes. In the photo above, Rick Henderson has his 8" Meade scope set up. Denise Moser can be see looking through her binoculars at comet Ison. Lights from other people parking their cars light up the scene. As soon as I set up my 300mm lens, I started taking pictures of comet Lovejoy, a comet that was brighter than was expected. As can be seen by my telephoto lens, Lovejoy was pretty high up in the sky, sitting between the Big Dipper and the constellation Leo.

Comet Lovejoy is a very nice comet. It's fan-like tail is easily seen in binoculars and fairly easy to photograph. I took about 40 images, each 15 seconds long at ISO 1600. I wish I could have gone longer, but the bright Moon prevented that.

Comet Ison was about 10 degrees above the eastern horizon when I started shooting it. I took quite a number of images, but lost all but 8 shots. Each image was 8 seconds long. It took me quite a number of hours using various techniques to bring out the tail on Ison. I was amazed at how long the tail was, extending past the bright star Spica and out of the frame. Half way between the nucleus of the comet and Spica is a piece of the comet that shows up as a tail disconnection. Below are two images of the raw files, with no processing at all. As you can see, no tail is visible in the raw image, but it is there after I coaxed it out.

RAW image of Comet Lovejoy

RAW image of Comet Ison

Comet Ison is much dimmer than it was expected. Not easy to see, even in binoculars, much less with the unaided eye. The comet is now heading for a rendezvous with the Sun on Thanksgiving day. If it survives it's close encounter with the Sun, I am crossing my fingers hoping it will be a bright comet with a long tail in the morning sky. But comets are worse than cats and they do what they want to do.

A Halloween Star and an Exploding Comet

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This is comet 17P/Holmes near the "Demon Star", Algol. I took this picture almost 6 years ago, a year before I started this Photo Blog, so many have not seen this image. I put this up for two reasons.

• First, there is a fairly new comet that is very similar to comet Holmes. Both of them are "exploding" comets. Back in October 24, 2007, comet Holmes shocked astronomers with a spectacular eruption. In less than 24 hours, this extremely faint comet (17th magnitude), brightened by a factor of nearly a million and became a naked eye object. At the time I took this photo in January, it had expanded into an object larger than the Sun. The new comet, C/2012 X1 Linear, is now doing the same thing. It was seen to first explode on October 20th of this year and amateur astronomers have seen the comet's brightness increase 100 times. It is not as bright as Holmes at this point, but can be captured by astrophotograhers. See the middle of the page on Spaceweather.com for pictures and where it is located in the morning sky.
• Second, in the above photo, comet Holmes passed near the bright, naked eye star Algol, in the constellation Perseus. Algol is usually the second-brightest star in Perseus, but only when it is not being eclipsed by it's companion star. During the eclipse, which occurs regularly every 2 days, 20 hours and 49 minutes, Algol dims from 2.1 magnitude to 3.4 and lasts roughly 10 hours. This "dimming" can be seen without the aide of a telescope, so more than likely it was known in ancient times, but the variability of Algol was first recorded in 1667.

What makes this a good "Halloween" star is the mythology involved with this star: Perseus, the mythical Greek hero, used the Gorgon Medusa's severed head to turn the sea monster Cetus into stone. Algol represented the "evil eye" of Medusa to the ancient Greeks. An evil eye that winks at you for 10 hours approximately every 3 days.

We know Algol as the "Demon Star", derived from Arabic "ra's al-ghul", meaning "head of the ghoul". In Hebrew folklore, Algol was known as "Rosh ha Satan", or "Satan's Head". In Chinese astronomy, it is known as the Fifth Star of the Mausoleum and also had the grim name "Tseih She", meaning "Piled up corpses". What better star than this for "All Hallows Eve"?

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During the Fall and early Winter, Algol can be located high in the north east sky after sunset.

Chart created with SkySafari Pro.
Comet Holmes image was taken with a 300mm f/4 Canon lens on a Canon Xti DSLR piggybacked on telescope. 29 - 2 minute exposures.

Comet Ison Oct 6, 2013

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Comet Ison, pictured here in the early morning sky of October 6, is expected to be visible to the unaided eye in November and possibly a very bright comet after it goes around the Sun on November 25th. The image was taken through my Orion 190mm Maksotuv-Newtonian telescope. Twenty two images, each 2 minutes long, were taken and combined to create the image. At the time it was not an easy object to view visually, but could be seen at the eyepiece of a telescope. 

The green color you see in the comet is normal. The color is created when subatomic particles from the solar wind strike the gas (coma) surrounding the nucleus of the comet. Molecules of cyanogen and diatomic carbon are excited and made to glow, just like the gas in a fluorescent lamp glows when electricity excites it. The tail of the comet is also made up of gas and dust being pushed by the same solar wind.

As it gets closer to the Sun, the coma will get larger and the tail longer and more prominent. Even though it is fainter then expected at this time, if we are lucky, comet Ison will hopefully put on a fantastic show