View Single Post
  #10  
Old 20-10-2020, 09:53 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,828
Quote:
Originally Posted by Tulloch View Post
Hi Dennis, inspired by your image I decided to have a crack myself at Saturn and its moons, and I'm wondering if you ever worked out where Phoebe was? I used SkySafari as a guide to image it, but Stellarium doesn't agree with SkySafari, and WinJupos doesn't seem to have it at all.

Did you find a source for its location?

Andrew

[EDIT] Actually, I think this is the best source...
https://pds-rings.seti.org/tools/viewer2_sat.html
Hi Andrew

Historically, I have found SkyTools (v3 and v4) to be the most accurate and reliable observation planning application for off the beaten track stuff that I have been chasing.

For the inner moons, I have found Starry Night Pro (SNP), SkyTools (ST) and The Sky X Pro (TSX)to be reasonably in agreement with each other.

I like the draw "Orbit" function in SNP7 and SNP8 so I can overlay the orbits on my composite image.

In TSX you can add and plot user-added objects based on inputting RA/DEC (careful between J2000 and Apparent epoch) and then it will display on the sky chart.

I have founf the JPL Horizons website to be the gold standard for generating ephemerides of an object.

Here are some screen prints of the various apps.

Some of the fainter stuff can be a bit challenging and I have to sometimes redo an Align and Stack of a set of images to minimise picking up a processing artefact.

I usually start off by taking a series of different exposures, e.g. 1, 5, 10, 20, 30 secs to see what each one will pick up, then I select the best range and take between 20 and 30 frames for Alignment and Stacking.

Good luck - it can be fun when the weather, seeing and equipment all cooperate.

Cheers

Dennis
Attached Thumbnails
Click for full-size image (ST4 Crop 1280.jpg)
69.1 KB13 views
Click for full-size image (ST3 Crop 1280.jpg)
73.6 KB12 views
Click for full-size image (The SKy X Pro Crop 1280.jpg)
64.6 KB8 views
Click for full-size image (The Sky X Pro Add Element Crop 1280.jpg)
121.2 KB6 views
Click for full-size image (SNP Pro 8 Crop 1280.jpg)
64.2 KB9 views
Click for full-size image (SNP Pro 7 Crop 1280.jpg)
67.8 KB8 views
Click for full-size image (JPL Horizons.jpg)
180.9 KB10 views
Reply With Quote