People frequently ask what I do when it's cloudy. A quick browse of my web site provides many answers but I thought it would be fun to share my most recent...

Hi all, I've been lucky enough to buy one of the ST7-ME (parallel version) sbig has sold recently. First thing I've done, has been test it versus my...

I've just set up a forum about astronomy. There you can discuss about everything concerning astronomy. There aren't many topics yet, therefore i would ask you...

High resolution panoramic photographs taken from the Mars Opportunity Lander in February 2004 for sale on ebay- Mars Opportunity Rocks Panorama 35" x 6.2"...

When the moon is bright, most deep-sky observers and imagers give up because of moon light pollution. This need not be the case for imaging if one uses a...

Is there anyone in the Howard County, MD area that has experience colliminating a Dob? Would you be interested in helping a newbie out? I did the collimination...

How popular is the task of adding motors to a dob? I have read a few web sites about it, and I wonder how often people actually do it. I am contemplating...

Hello, Please pass the word that registration for the sixth annual, week-long Laurel Highlands Star Cruise is now open. In a nutshell, the final 4 days are...

After I saw Al Kelly post an image of this object recently, I decided I wanted to image it with emission line filters. I used Ha, and for this object. When...

I imaged T7 between twilight and moonrise last night. The two-pronged tail is about 30 arc minutes long but very faint. A simulated eyepiece view is...

Dear all, Saturn on 5th day of February at 22:14 & 22:56 (false colours) local time. Seeing 7/10 (more???) Theese are visible now on my little...

Here's a strange nebula in Orion: HH34, called by ESO "Nebular Region With Jets". http://www.rdcrisp.darkhorizons.org/herbig_haro_34_page.htm I finished this...

Tonight we had clear skies again. The seeing was a bit better tonight than last, but nothing like Saturday. I was stumbling around trying to find a decent...

Al Kelly suggested that he should make a composite image from his LRGB data and my emission line data. So I sent him the data I had taken (raw stacks), and he...

I'm very familiar with the concept of dark frames, but the registax has an implementation that seems unusal. The program apparently is very good at handling...

Hi I want to build my own astronomical camera. I don't have decided which I'll use. I want to put a color CMOS sensor but many web sites relates that CMOS...

I read(*) that a standard practice is to collect a set of "bias" frames and average them together. You then collect another set of "dark" frames (at some...

QuasarChile Announces Expert guided tours to Northern Chile designed for amateur astronomers are now available. -Indulge your passion to visit one of the...

I imaged T7 last night. The two-pronged tail is prominent. There are two magnitude 15 galaxies in the same FOV. I imaged the comet down to 17.4 degrees above...

I used the same 3nm FWHM Cust Sci filter for both images. The C14/Dream Machine (IMG10124S) camera was exposed for 20 minutes x 3 exposures. the...