Field of Planetary Dreams

On the evening of May 29, 2015, the Insight Observatory and Cotuit Library staff had the pleasure of hosting a planet observing session opened to the public in Cotuit, MA, a village of the town of Barnstable located on Cape Cod. The event was attended by around 20 people of all different ages and as young as 3 years old. These folks were eager to get their first telescopic view of the planets Venus, Jupiter, and Saturn as well as the gibbous Moon. 

The youngest attendee got her first

look at the Moon through a telescope.

Several telescopes that were provided by the Cotuit Library and Insight Observatory were set up just behind the pitcher's mound at Lowell Park, the baseball field that is the home of the Cotuit Kettleers. The Kettleers baseball organization was very generous to allow this observing session to take place on their home field. Due to the phase of the moon almost being full, the observing session was focused on observing the planets that were visible and the moon itself.

The first target of the evening was the planet Venus which was starting to dip down towards the west just after twilight. Insight staff member, Harry Hammond was manning the library's 8" Dobsonian telescope (which is available for checkout for those who have a Cotuit Library card) and I had the control of Insight Observatory's 10" Dobsonian telescope. When our guests were viewing the planet, they would shout out with tones of astonishment "It looks like it has a phase like "the moon". We only see a little over half of it".

We then moved on to Jupiter, about 20 degrees east of Venus. I figured that the excitement of seeing 4 of the giant planet's moons was going to be the highlight of viewing this planet, however, it was the equatorial cloud belts that the observers could see on the planet's disk that amazed them most.

Then there was the bright gibbous moon farther east from Jupiter that was waiting to be viewed by everyone. The "Wow Factor" here was wonderful! The observers could not believe the detail they were seeing on the lunar surface. Two of the Moon's most prominent craters, Copernicus and Clavius stood out very prominently.

Now for the grand finale, Saturn had just risen above the trees toward the east, so we guided both telescopes toward the ringed planet and because Saturn had recently reached opposition, the view was spectacular with Cassini's division obviously visible separating the rings. One observer said, "I thought I would never see the rings of Saturn in my lifetime, thank you!"

Read More

Students Observe Venus, Jupiter and the Moon

The rewards of witnessing students acquire their first visual views and photographic images of Venus, Jupiter, and the Moon are absolutely priceless. On the evening of Tuesday, April 28th, 2105, at 7:30pm EDT, 10 students from the Astronomy Club at the Sacred Heart School in Kingston, MA, gathered at the Kohout-Dingley Observatory located on the school's campus grounds. The goal for the evening was to observe and learn a little about Venus, Jupiter, and the Moon through the observatory's 11" telescope with direction from staff members from Insight Observatory.

Students Prepare to Observe at the Observatory.

Shortly after the sunset and the observatory dome was opened up with the telescope ready to go, a few students started to trickle in along with the school's longtime science teacher and astronomy club advisor, Joe Masi. As twilight began, we pointed out Venus, the "Evening Star" as it began to shine bright in the western sky. The 11" telescope was then trained on the inner planet to allow students to get a peek. Most of the observers reacted by stating, "I can see a phase... It looks like a gibbous moon like tonight’s moon phase."

Sacred Heart Senior, Cam K. Photographs the Moon.

After all the attending students got their first look at Venus through a telescope, we then slewed to the bright-gaseous planet, Jupiter. The seeing was fantastic as usual during and just after twilight. The North and South Equatorial Belts were very apparent. There were also four of Jupiter's moons visible in the field of view. I had every student sit comfortably in the observing chair to allow them to take their time viewing the solar system's largest planet. After they focused the telescope to best suit their view, just about every one of them responded "Wow! That is so amazing! I can see the moons and belts... The belts are a reddish color".

The Moon Featuring the Crater Copernicus Imaged by
 Sacred Heart Student, Cam. K. w/ his DSLR Camera.

Last but not least in any way for sure, was our last target and Grande finally for the evening... The Moon is Earth's nearest neighbor. The phase was a waxing gibbous that provided an excellent view of the popular crater, Copernicus. The shadows observed within the craters and mountain ranges of the moon made the viewing that much more spectacular. One student attending, Cam K., brought his DSLR camera with him as he was there to photograph the observatory and its equipment for a school newspaper article. After viewing Jupiter and the Moon, he asked if he could try photographing the objects through the eyepiece. Cam used the method of holding the camera and zooming into the eyepiece with a telephoto lens as well as steadying the camera on a tripod. This method of astrophotography is known as "eyepiece projection".

In most cases, one would get a camera adapter to fasten the camera body to the focuser of the telescope for this method. However, just as an experiment, his very first results were surprisingly good. Cam is now interested in learning more about astrophotography. While cam is an avid photographer, he made a comment while he was photographing Jupiter through the telescope..."This is the farthest object I have ever focused on and photographed."

Read More

Methods for Observing the Lyrid Meteor Shower

This month’s Lyrid meteor shower isn't one of the year's strongest displays, and with Moon being in a thin, waxing crescent, it won't offer much competition. As with January’s Quadrantids, the Lyrids put on a fairly brief performance, and this year they are predicted to peak on April 22nd at 23:00 UT.

Lyrid meteor photographed back in the 2012 shower

The Lyrid meteors appear to radiate from a location near the Hercules-Lyra border, which is high in the sky from about 11 p.m. until dawn. The Lyrid meteor shower has been observed for more than 2,000 years; Chinese records say "stars fell like rain" during the shower of 687 BC. But in recent times, the Lyrids have generally been weak, though at intervals of about 12 years the shower occasionally delivers up to 10 times more meteors than normal. The Lyrids did show a brief surge to a Zenith Hourly Rate of 90 back in 1982, but a spike like that has not been reported in any of the Lyrids since.

Here are a few methods on how to record the Lyrid meteors...

Visual Meteor Observing - An easy way to observe meteors visually is known as the "'counting method". An observer notes the meteors seen on a tape recorder or just a piece of paper. He or she gives the estimated magnitude of the meteor and whether or not it belonged to the observed shower (e.g. Lyrid or non-Lyrid). This method is most applicable for major showers like the Quadrantids, Perseids, and Geminids. You have to decide which observing method, plotting or counting, can be used most favorably. Personally, my preferred method of recording meteors is photocopying a page from a star atlas that includes the shower's radiant, and when a meteor is spotted, I would then draw an arrow on the photocopied page of the star atlas pointing in the direction I saw the meteor moving in across the sky. The length of the arrow represented how far it traveled.

Recording meteors on a star atlas

Photographing Meteors - The first thing you have to have if you want to capture a meteor in a photograph is a camera capable of doing so. I realize there are still folks who use film cameras but the cost and effort of using film to shoot meteors are too great to include as a method, therefore, I will recommend just digital. However, when I did use film years ago, I used a Pentax K1000 camera and use it during meteor showers for long exposures.

There are a lot of digital cameras out there capable of capturing excellent images of meteors. It is possible to catch a meteor on nearly any camera that allows for manual or semi-manual control and exposures of at least 15 seconds. Once you have your camera there are several other things you really need to have.

1. Sturdy tripod - No images shot during dark/dusk or in any low light condition will work without it. 

2. Cable release - You don't want to be hovering over your camera all night with your finger pressed on the shutter and if you did your photographs wouldn't be as good as they could have been b/c you will cause a slight movement every time you touch the camera. Some cable release cords have settings that allow exposure length (bulb) to be specified which is a big help. 

3. AC adapter or several batteries - Most digital SLR cameras have AC adapters available but if not several batteries should do the trick.

4. Memory cards - More than likely you will be taking lots of pictures in attempting to catch a meteor so make sure you have enough memory. An 8 GB card should be good for all night. A 4 GB card should work if your exposures are longer (1-2 mins). Another option is connecting your camera to a computer and controlling it via the computer and having the images saved directly to your computer. The downside here is that a slight delay between shots (1-3 seconds) could cause the observer to miss something.

Read More