Imaging Targets for This Summer's Star Parties

I'm probably going to four star parties this summer: The Jeffers Starry Nights (JSN), the Nebraska Star Party (NSP), the South Dakota Star Party (SDSP) and Iowa Star Party (ISP). I'm hoping to do quite a bit of imaging at these, taking advantage of the dark skies and slightly more southern locations. It's not much, but every degree of elevation helps!

I'd like to bump along my Bright Nebula list work, and take a couple of pretty pictures, too.  The dark locations let me image reflection nebulae that I can't get from my light-polluted back yard. Another constraint is that whatever scope I bring to Jeffers will also be the one I use at NSP. So what should I image?

(1) I'd like to go really deep on the Iris (NGC 7023). It's a reflection nebula on the list, and it's pretty. Near by are some barely luminous clouds. A wide field shot with my AT65 will take them all in. The Iris a better target during the JSN/NSP time period than in late August. This would be a multi-hour object, to say the least.

(2) I've always wanted a good image of the Helix nebula (NGC7293). This is better imaged around labor day, so it should be during either the SDSP or ISP. ISP has darker southern sky, so that's where it will be imaged. The C925 produces a nice image scale for it.

The Helix from 2009 JSN.

The above is my only Helix image, taken using my TV102, an unmodded Canon DSLR, 16 x 180s @ ISO 1600. Not at all adequate. A few hours (or longer) of LRGB could be much better.

(2a) Other objects I would like to go really deep on are the Ring--see a previous post about the outer shell-- and the Dumbbell. Those would be best in the C925.

(3) I have only one so-so image of the eagle nebula (M16) from a couple of years ago. Unfortunately it doesn't include the portion of the nebula that's considered LBN 68, a list item. So that should be reimaged from a dark site. This would probably look better in the C925 but the wide field of the AT65 would be adequate. Best during JSN/NSP.

(4) There are a good number of large list items in Scorpius and Sagittarius that would image well in the AT 72. These should be imaged at JSN/NSP. These include Sh 2-13, 2-16, NGC 6334, IC 4628, IC 4701 and LBN 52. An hour each should produce images that could satisfy list requirements.

So there you are:

• JSN and NSP get the Iris and the large list items. This means that I can travel to them with the smaller, lighter AT65. One pretty picture (Iris) and a flock of list items.

• SDSP and ISP get the Helix, Ring, Dumbbell, and whatever else comes along. For those it's the C925. Pretty pictures all, and perhaps list items left over from July.

Now it's all up to the weather!

M 31 from the South Dakota Star Party

New dew controller in hand (see last entry) I was ready for the South Dakota Star Party. I had a short list of targets--The Iris Nebula, the Lagoon Nebula, the Heart Nebula. The one chosen would depend on the sky conditions. So much for plans.

Thursday night was partly cloudy with heavy dew and fog. I stayed home. Friday night started with high clouds, but went mostly clear as twilight ended. The view to the Lagoon was full of light from Sioux Falls, which was only about 15 miles away. I decided on the northern sky. I did a bore-sight polar align and tried to start with M 103. I switched over to M31 because I wanted to image something prettier. I got everything set up and running, but the first few frames were bad because the autoguider was losing the guide star in the remaining cirrus. There was a bright star at the edge of the autoguider's FOV, so I used that instead.

I set up the camera control to shoot five lights through each of the LRGB filters and then loop. That was at about 11:30. Amazingly, the system continued to run unattended for almost five hours! Focus held steady all that time, and tracking remained solid on all but one frame.

In the end I had to toss 25 frames because of clouds, one for tracking, and a couple because satellites passed right across M 31. Here's the result

Messiers 31, 32, and 110

Click for a larger version. Visit Astrobin for image details and a full-scale version.

I know the cores are overexposed, and maybe I need to do something about the blue fringing on some of the stars, and maybe I left it all a little dark. But I think I like it. Thank goodness I didn't cut the imaging short to chase after another object.

Planning for the new year

It's a new year, and that puts me in the mind to start thinking about star parties to attend. There aren't many firm dates for these yet, so right now I have to guess a little on when they'll be. Let's look at the dates we know and use the new moons for guidance:


MAY NEW MOON: 20th

JUNE NEW MOON: 19th

JULY NEW MOON: 19th

July 15-20: Nebraska Star Party.

July 19-22: Wisconsin Observer's Weekend (WOW). This looks promising, and is much close than the Nebraska Star Party

AUGUST NEW MOON: 17th
The August new moon is around the date of the weekend that items are submitted to the Minnesota State Fair.

South Dakota Star Party/Northwoods Starfest. Dates unknown.

North Dakota Badlands Star Party, in Teddy Roosevelt National Park North Unit. Dates unknown.

SEPTEMBER NEW MOON: 16th

Iowa Star Party. This is usually around labor day, but this year the Moon is full on August 31. Probably they will have to push it to September 6 through 9. Augsburg College (where I teach) doesn't have the schedule out for Fall of 2012 yet, so it's about a 50% chance I can make it.

Jeffers Petroglyphs star party (once promoted as the Prairie Grass Stargaze). This is probably going to be in around the time of new moon in September, the 13th to 16th. I will be able to attend only Friday and Saturday nights at most, possibly only Saturday night. Bummer.

OCTOBER:

October 10-14: Heart of America Star Party, October 10-14. Day Classes make it impossible to attend.

So the year does not look very good at all. I'll probably go to the WOW, and make trips to Onan and Cherry Grove.