#AstroMethods
Paper day!

You're doing ground-based high-resolution exoplanet transmission spectroscopy and want to analyse the planet—not the star or Earth's atmosphere.

Is there a way to disentangle your spectrum *without* destroying the planet signal?

arxiv.org/abs/2509.12737

🧵⬇️

🔭 #exoplanets #astromethods
TSD: An inverse problem approach for recovering the exoplanetary atmosphere transmission spectrum from high-resolution spectroscopy
Our ability to observe, detect, and characterize exoplanetary atmospheres has grown by leaps and bounds over the last 20 years, aided largely by developments in astronomical instrumentation; improveme...
arxiv.org
September 17, 2025 at 3:05 PM
New SkyCalPro Release!🌙
I've now released a much larger catalogue of lunar surfaces features. You can now find the viewing times 2,800 lunar objects such as Craters, Mountains, Ridges, Trenches, Valleys, Seas, Lakes, Plains and Bays
skycalpro.com
#MoonHour #Astronomy #AstroMethods
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
July 18, 2026 at 6:20 AM
Claire-Obsure effect: How and when to look for Cauchy's interrupted western shadow on the Moon.
This is a test post was generated automatically by SkyCalPro
#Astromethods
July 12, 2026 at 8:41 PM
Spot the difference (no prizes, easy one!😂).

This is what I've been trying to solve the last few days. Two issues, all good and working now.

I've broken a few old tests in the process of creating the new output, so a bit of clean up, but this is good progress.
#AstroMethods #SpaceStation #ISS
December 18, 2025 at 5:57 PM
New SkyCalPro Release🔭
"Phases and Orbital Data" Calcs:
-Full Moon/ Phase times now shows the local observers time

-The first Full Moon after the Autumn Equinox now displays as "Harvest Moon"

-Supermoon/Micromoon will now align with other astronomy publications

skycalpro.com

#AstroMethods
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
December 7, 2025 at 7:34 PM
Version 2.4.0 of skycalpro.com now released😊This is a small update adding to the seasons option: equilux, aphelion, perihelion and earliest/ latest sunrise/sunset times for your location-you may be surprised that these are not the same dates as the solstice! 🔭
#Astronomy #AstroMethods
December 6, 2025 at 7:39 AM
SkyCalPro Mini Update:
Equilux (days when daylight and darkness are closest to equal) added to Solar Events.
Earliest and latest sunrise/sunset search added for a given location and date range.
Apsides (Perihelion, Aphelion - earths closest and furthest approach to the sun)
#Astronomy #AstroMethods
December 5, 2025 at 11:11 PM
Just testing the next release of skycalpro. This update will extend the output of one of the options. Will launch later in the week.
Dev working. I haven't tried staging it yet, but I think this one will go up easily. More soon...
#AstroMethods 🔭
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
December 2, 2025 at 8:59 AM
Dev machine showing this right now.
Recent star link launches and satellite trains for observational interest.
#Starlink #AstroMethods
November 22, 2025 at 7:13 PM
SkyCalPro 2.2.0 out now:
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits

#AstroMethods #Jupiter
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
November 14, 2025 at 7:05 AM
After a lot of faffing this week, early this morning, I managed to stage the changes to the GRS calculation on SkyCalPro. That's a big step.

When i get time this week I'll mock it up in production and see if it goes up there too. Hopefully ready publicly in the next couple of days
#AstroMethods
November 11, 2025 at 12:53 PM
Just spinning up the staging server. Been working on the Jupiter Great Red Spot drift rate automation and its now ready for the next stage of testing.

Cool image of the GRS from Voyager. I'll tell you more about it next week

#AstroMethods
November 2, 2025 at 11:24 AM
How my deployment script tells me it's baked and ready!
#AstroMethods
September 16, 2025 at 9:58 PM
OK. V2.0 is running on my staging server! Woohoo! The deployment process is still a little flakey and isn’t passing all tests first time but today I managed to use the site a such that I could record a video of what’s new! #AstroMethods
Getting closer with the new update. Lots of tests and checks have been done and is working nicely on my dev server now. I've started to deploy code on the staging server. Proving hard but I'm getting there. Once it's staged, it will be a short hop to prep it for production. 🤞
September 13, 2025 at 4:25 PM
A quick SkyCalPro update:
I've been quiet on here, partly cos I've been away a lot, but partly because I've been spending a lot of time on SkyCalPro development work. Next release will be a good one. Some fun changes coming up soon and a new look and feel
#AstroMethods #StarGazing
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
September 6, 2025 at 9:32 AM
A bit of reading and coding by the pool today. I was hasty on the step 4 completion. Just tidied up and got the interfaces working properly. Step 5 will be staging. That will require a production ready database rather than the dev one I’m using now so can wait until I get home☺️
#AstroMethods
August 1, 2025 at 3:43 PM
Today on my development server (not available to the public)

Session cookies now working. Now I can hook the user roles in step 2 to the google sign in from step 3.

Step 4 of 5 now complete. Still a while from completion on dev. Still have to get it running on staging…
#AstroMethods
July 29, 2025 at 9:35 AM
This week on my development server (Not available to the public)
Set up
✅Google oauth token exchange
✅email/password secure login tested
✅unit tests added
This completes step 3 of 5

Step 4: Client side user interfaces up next
#AstroMethods
July 20, 2025 at 6:21 PM
This week on my development server (Not available to the public)

✅refactored code to allow 5 days of astro events
✅added endpoints for user authentication.

This completes step 2 of 5. Still much to do.
#AstroMethods
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
July 10, 2025 at 6:34 AM
#SkyCalPro update. I’ve been coding again. I’m making good progress. Next update will allow users to see more days into the future. There’s a few things I need to get in place. The more days the more complex it becomes!. Release is a few weeks away though…
#AstroMethods

Https://akycalpro.com
July 5, 2025 at 5:02 PM
You likely noticed that I've had a rest from SkyCalPro development for the last few weeks. My excuse is day job stuff getting in the way🙄💤!

Today I started work on allowing more than 2 days of calculations. Not sure how long this will take to complete though!

#Astronomy #SkyCalPro #AstroMethods
a black keyboard is sitting on top of a computer screen with a cartoon character on it .
ALT: a black keyboard is sitting on top of a computer screen with a cartoon character on it .
media.tenor.com
June 28, 2025 at 9:57 AM
Finding the line yesterday took nearly 300 iterations of badly performing searches to find the observation points. It failed often and took ages to solve.
Now I use vectors-I've reduced the calculations to a few iterations whilst finding the observation site to within 10 meters😎
#AstroMethods
May 11, 2025 at 1:52 PM
My development machine now displays this map. This not available on the public site yet:

ISS: The point on earth directly below the Space Station
AND
MARS: The place where the observer would have to stand such that the ISS and Mars are in the exact same place in the sky😎
#AstroMethods
May 10, 2025 at 6:49 AM
Some rather cool output showing on my dev machine console. If the ISS is near a planet, this brief statement shows me where on earth I need to stand so that the two objects visually align. That's the easy step. Testing testing testing next...
#AstroMethods
May 6, 2025 at 6:05 AM
Update coming soon on skycalpro.com
This one was supposed to be a quick fix but turned into a bit of an epic…
Spent way longer than i intended but is quite a nice update. Testing phase…More soon
#Astronomy
#AstroMethods
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
April 23, 2025 at 10:02 PM