Steve Tonkin
astunit.bsky.social
Steve Tonkin
@astunit.bsky.social
Responsible Lighting Advocate, Astronomy Outreach & Author

Dark Sky Advisor at Cranborne Chase International Dark Sky Reserve and Federation of Astronomical Societies

To my darling Andromeda:
Some shifts are red
Your shift is blue
Before the Sun dies
We'll merge into you
February 14, 2025 at 8:58 AM
This is a very accessible intro to light pollution/ dark night skies/the need for responsible lighting. Please share. www.bbc.co.uk/sounds/play/...
The Documentary - Licence to operate a space object - BBC Sounds
The night sky holds so much power, why are we not fighting harder to protect it?
www.bbc.co.uk
February 4, 2025 at 6:20 PM
I tried to pull out some of the "soot and sand" dark nebulosity around the Iris. In awe of what this little gadget (Dwarf 3) can achieve. The bright patch on the right is the Ghost (Sh2-136).
January 8, 2025 at 8:17 PM
AstroMedia Stirling Engine kit (yes, I did press the flywheel flat while the PVA was setting 😁). Up to 160 rpm, ran for 71 mins.

Carnot rocks!
December 31, 2024 at 7:51 PM
Recently acquired a DwarfLab3. Grabbed this in a break in the clouds last evening. 8x30s, dual band filter, as it comes out of the Dwarf (might see if I can improve it with Siril).
December 22, 2024 at 11:14 AM
Rather good piece by Brian Dunning on these so-called "drones".

briandunning.substack.com/p/drones-in-...
Drones in New Jersey, UFOs in Oregon: What does it all mean?
Out-of-control public perception of drones everywhere over New Jersey is spreading... just like a social contagion.
briandunning.substack.com
December 18, 2024 at 5:39 PM
Back in September I did an "In praise of Dark Night Skies" show, at Winchester Science Centre planetarium, for the Big Chalk national conference. Photos were taken...
December 4, 2024 at 3:27 PM
November 25, 2024 at 9:52 AM
Great to be supporting #SustainableWarminster this afternoon by promoting responsible lighting.
November 23, 2024 at 8:08 PM
If you want a single comprehensive resource for up-to-date research on Artificial Light at Night #ALAN #LightPollution this is updated annually:
darksky.org/app/uploads/...
darksky.org
November 11, 2024 at 3:56 PM
Another huge study on the adverse effects of #ALAN #LightPollution

www.npr.org/sections/sho...
www.npr.org
November 10, 2024 at 2:10 PM