Archive for February 14, 2022

The Deep-Sky From Florida By Guest Host: Mario Motta

February 14, 2022

I was able to get my C-14 up and running in Naples, Florida, and the following are my images to-date.

The above image is my Naples, Florida setup. I work under a Bortle 5.5, which is not ideal and a full magnitude below my 4.5 skies in Gloucester, MA where my 32-inch scope is located.

I have an iOptron CEM 70g mount and pier-tripod, which has a level and a built in polar alignment scope. I find it invaluable for a quick polar alignment, when I set it down on a pre-marked location via a pad.

This mount is center-weighted, which is excellent for southern objects, and much better then a standard German equatorial, due to the weight of the scope “hanging off” the end of the polar axis at +26º North.

On this mount the polar axis is “centered” between two bearings…spreading the weight distribution well for southern locations, and It has excellent tracking.

As shown above:

My C-14 Edge has excellent optics, and I employ a focal reducer, so my work is at f/7 instead of f/11. 

I then have a filter wheel, with a Astrodon Light pollution L2P filter in place of standard Lum filter, which helps cut the LP down a bit. Then standard R,G,B astronomik filters, and finally astrodon 5 nm, Ha, S2 and O-III filters.

Finally, my standard camera is a ZWO ASI6200MM pro. I like this camera due to its very low dark current and excellent sensitivity, and wide field.

Piggybacked on this set-up is a Night Hawk 85mm f/6.5 refractor, which I primarily use in auto-guiding with a starlight express Ultrastar. On occasion I use this for a super-wide field image, such as the Vela supernova remnant image, as shown in the images below.

Finally…I have a Celestron dew control system, which is a necessity here in Florida. The humidity and dew-point can and most often is somewhat high.

After spending a night with a hairdryer removing dew every half hour, I recognized immediately that a dew-control system was not just a necessity, but a must!

Set-up time is about 50 minutes, with about 10 minutes to polar align after placing on the preset location.

A nice dark-sky would be great, but not…which indicates we need good light-pollution laws in every state.

In addition to my “Florida images” as posted by Roger Ivester, you can see a large set of my images (~700) at

So click on the top ribbon pane under astronomy to view my total images.

Enjoy….Mario Motta,

I plan on catching those deep south gems that are not available to me from my home, back in Massachusetts, and will be adding my latest and newest Florida images as following, as they occur.

If you can’t remember this link: Whatever search engine you are using, just type in “The Deep-Sky From Florida Mario Motta”

For the benefit of those that might want to follow Mario in his quest to observe deep-sky objects from Florida, I’ve included the following calculation for your use. Or you might just want to determine the deep-south objects that are available to you, which you might not thought were possible.

Calculation for Naples, Florida as following:

Theoretical limiting southern horizon calculation from Naples Florida at ~ +26º North Latitude:

(90º-26º) = -64º limiting south latitude, which opens up a vast number of deep-sky objects not available in the NE!

From my (+35º 15′ ) in North Carolina, my theoretical south latitude 90º (-) 35º = ~ -55º. Of course the terrain and light pollution can most often be the limiting factor for many in their limiting theoretical southern latitude. I can see the star Canopus, at a south declination of (-52º 42′) but in a distant tree-line. However, it shines brightly! Roger

Vela supernova with 90mm f/5.5 scope, use this scope only for piggyback guiding. ASI 071MC pro camera, and with optalon L-extreme filter. Two hours of 5 min subs, this is low in the sky, but with the filter able to image nearly to the horizon.

NGC 1097, in Fornax, 45 MLY away…a beautiful barred spiral

NGC 2467, in Puppis, the “skull and crossbones nebula.” This is NB imaging, mostly H alpha

NGC 4536, barred spiral in Virgo

NGC 5068, open spiral in Virgo

SH2-302 nebula, the “snowman nebula in Puppis. This is all H-alpha

Faint section of the Vela nebula…a supernova remnant

NGC 1365: Known as the Great Barred Spiral in the constellation of Fornax (Feb. 2022)

NGC 2736: The Pencil Nebula (a supernova remnant) in the constellation of Vela (Feb. 2022)

Sh2-301, a small diffuse nebula in Canis Major, can be imaged from Gloucester, but easier from down south. (Feb. 2022)

Globular Cluster NGC 1851 in the constellation of Columba (February 2022)

Centaurus A NGC 5128 in B&W (March 2022)

Centaurus A – NGC 5128 in color (March 2022)

The Famous Globular Cluster…Omega Centauri (March 2022)

Galaxy NGC 2997 in Antilla (March 2022)

Globular Cluster NGC 3201 in Vela (February 2022)

Galaxy NGC 4945 in Centaurus (March 2022)

NGC 6357 in Scorpio, an H alpha region of intense star formation. Taken with the C-14, and the ZWO ASI6200 camera, with H alpha, O3, and S2 filters, combined in PixInsight and processed. The star cluster embedded within the nebula contains some very massive stars, 10-100 solar masses among them. This nebula is also nicknamed the “lobster nebula” (Posted April 26th 2022)