I'm sure this is been covered elsewhere, but I can't seem to find it.

I'm updating my computer and want to put my Skytools 3 on it.  What is the process?  How do I download Skytools onto my new computer?  

After that, I would assume I copy the data onto a flashdrive and transfer the information?

Thanks for the help!

There will be a transit of Mercury on 11 Nov 2019. The transit starts ~7:35am EST and ends ~1:04pm EST as seen from Columbus Ohio. Be sure to use the appropriate safeguards when observing the sun. ST3 Pro has a great feature that will flag upcoming events like transits, eclipses, etc. Is there a plan to implement this feature in ST4 Visual? 

Phil S.

Hi I've removed a scope from the list.
But when I go to make a new log entry this telescope still comes up as the default option.

How do I fix this?

Thanks

Good evening,

Before creating one, has anyone created an STX file of the Multiple Star observing list? 

https://www.astroleague.org/content/mult...ng-program 

I looked in ST3 data manager but didn't come across one. If one doesn't exist, I'll create and share.

Thank you.

Mike

Hi Greg,

It seems that iTelescope T68 has been moved from Australia to New Mexico, but I can't find more info on its status. I wondered if you had more information on its status, since its right down the road from you and you're also an iTelescope user. 

Thanks,

Phil S.

I have loaded(cloned) 3 different Imaging Systems each a different OTA and I get results that are counter-intuitive.
Exposures were set at 15 SNR, all use the same ZWO 294C pro (gain 200, Bin x 1) camera with no filter and all targets are M33. Only exposure time is provided (set up time not included). System listed below:
1. Celestron 11" RASA,           279mm aperture and 620mm FL,  f/2.2 results in exposure time of 158min.
2. Celestron C8 w/x0.63 reducer, 203mm aperture and 1280mm FL, f/6.3 results in exposure time of 94min.(note: FL is 2032mm x 0.63, f/10 x 0.63)
3. Meade series 6000 quad APO,    70mm aperture and 350mm FL,  f/5   results in exposure time of 30min.

This results are different that I would of thought. I would have thought that the exposure time would have been a function of f-stop, so system #1 would have the least time, system #3 in the middle and system #2 would have the longest time.

How is the exposure calculated when the OTA changes? Is there a parameter I need to double check?

I have written an article about C/2019 Q4 (Borisov), the interstellar comet.

https://skyhound.com/2019_Q4.html

The Minor Planet Center just released an orbit for C/2019 Q4 (Borisov) and I have added it to the current comets target list.

This comet was only recognized yesterday as being of interstellar origin (a first). It is currently brighter than 19th mag.

The Minor Planet Center just released an orbit for C/2019 Q4 (Borisov) and I have added it to the current comets target list.

This comet was only recognized yesterday as being of interstellar origin (a first). It is currently brighter than 19th mag.

I used SkyTools 4 to locate Nereid a magnitude 18.69 moon of Neptune over 2 nights (01 and 03 Sept 2019) and was also pleased to find a couple of Asteroid trails on the 03 Sept images which SkyTools 4 identified for me.

I have overlayed the 01 and 03 Sept frames and replaced the Neptune/Triton pair with single frames from each session that were not blown out. These accurately depict the relative position of Triton mid-way through each session.

How good is SkyTools 4 Imaging.  

Nereid is the third largest of Neptune’s moons, and the second to have been discovered. It was discovered on 1st May, 1949 by the Dutch American astronomer Gerard P. Kuiper (for whom the Kuiper Belt is named) using photographic plates from the McDonald Observatory in Fort Davis, Texas.

Cheers

Dennis

Attached Files

Thumbnail(s)