Coronal Shadow
@coronalshadow.bsky.social
Engineer, mathematician, science geek
Ōtautahi, Aotearoa (Chch, NZ)
Ōtautahi, Aotearoa (Chch, NZ)
Somebody's construction in the Arrow River, 05/01/2025 📷
December 6, 2025 at 12:10 AM
Somebody's construction in the Arrow River, 05/01/2025 📷
Moon peeking through clouds over Ōtautahi Chch 📷🌕
(I'm still figuring out the best settings on my new phone's camera 😬)
(I'm still figuring out the best settings on my new phone's camera 😬)
December 3, 2025 at 8:50 AM
Moon peeking through clouds over Ōtautahi Chch 📷🌕
(I'm still figuring out the best settings on my new phone's camera 😬)
(I'm still figuring out the best settings on my new phone's camera 😬)
What would a good day look like for you? #SecretSantaAoNZ
Up a mountain! ⛰️ Especially over-night (which I'll be doing for the Solstice 🌞). Nothing beats sunrise from a mountaintop 😎
My preferred "zone" is the tussock-land; above the tree-line, out in the open 👍
Up a mountain! ⛰️ Especially over-night (which I'll be doing for the Solstice 🌞). Nothing beats sunrise from a mountaintop 😎
My preferred "zone" is the tussock-land; above the tree-line, out in the open 👍
November 26, 2025 at 7:26 PM
What would a good day look like for you? #SecretSantaAoNZ
Up a mountain! ⛰️ Especially over-night (which I'll be doing for the Solstice 🌞). Nothing beats sunrise from a mountaintop 😎
My preferred "zone" is the tussock-land; above the tree-line, out in the open 👍
Up a mountain! ⛰️ Especially over-night (which I'll be doing for the Solstice 🌞). Nothing beats sunrise from a mountaintop 😎
My preferred "zone" is the tussock-land; above the tree-line, out in the open 👍
🤔 I'm not sure I've even seen a Tesla charger in New Zealand... turns out there aren't many (first map), compared to the company I use (second map). A lot of petrol stations now have chargers here too (haven't used them yet).
November 24, 2025 at 1:39 AM
🤔 I'm not sure I've even seen a Tesla charger in New Zealand... turns out there aren't many (first map), compared to the company I use (second map). A lot of petrol stations now have chargers here too (haven't used them yet).
Yup, go to Mitre 10 for polished strong nails 👍😁
November 24, 2025 at 1:23 AM
Yup, go to Mitre 10 for polished strong nails 👍😁
Sorely tempted to buy or make this for your wall 😁
🤔 Or maybe a broach-sized version?
🤔 Or maybe a broach-sized version?
November 9, 2025 at 6:24 AM
Sorely tempted to buy or make this for your wall 😁
🤔 Or maybe a broach-sized version?
🤔 Or maybe a broach-sized version?
Nice close up 👍📷
Here's one from far away (top of Castle Hill Peak)
Here's one from far away (top of Castle Hill Peak)
October 31, 2025 at 12:47 AM
Nice close up 👍📷
Here's one from far away (top of Castle Hill Peak)
Here's one from far away (top of Castle Hill Peak)
I guess I got lucky 😁
Hoover all-rounder bagless; it's a bit of a weapon.
Hoover all-rounder bagless; it's a bit of a weapon.
October 30, 2025 at 7:26 AM
I guess I got lucky 😁
Hoover all-rounder bagless; it's a bit of a weapon.
Hoover all-rounder bagless; it's a bit of a weapon.
If you see this post a vampire that isn't Dracula
October 27, 2025 at 6:24 AM
If you see this post a vampire that isn't Dracula
20 years of smartphones (I recently upgraded ⬆️)
HTC Harrier
HTC Titan
HTC HD2
HTC One Mini 2
Samsung Galaxy X-Cover 4
Ulefone Armor Mini 20 Pro
HTC Harrier
HTC Titan
HTC HD2
HTC One Mini 2
Samsung Galaxy X-Cover 4
Ulefone Armor Mini 20 Pro
October 11, 2025 at 9:42 PM
20 years of smartphones (I recently upgraded ⬆️)
HTC Harrier
HTC Titan
HTC HD2
HTC One Mini 2
Samsung Galaxy X-Cover 4
Ulefone Armor Mini 20 Pro
HTC Harrier
HTC Titan
HTC HD2
HTC One Mini 2
Samsung Galaxy X-Cover 4
Ulefone Armor Mini 20 Pro
"The girlfriend of one of the founders of antifa"
October 9, 2025 at 9:35 PM
"The girlfriend of one of the founders of antifa"
👍 Isthmus Peak (where the road "crosses over" between Lakes Wanaka & Hawea) is a great climb & great view.
October 7, 2025 at 7:46 PM
👍 Isthmus Peak (where the road "crosses over" between Lakes Wanaka & Hawea) is a great climb & great view.
Given the atrocious weather over much of the country, here's a rock in the sunshine on the shore of Lake Wanaka 10/01/2025 📷😁
October 4, 2025 at 9:25 PM
Given the atrocious weather over much of the country, here's a rock in the sunshine on the shore of Lake Wanaka 10/01/2025 📷😁
In honour of our Bird Of The Year, this one hangs out near Arrowtown (I've met it several times; assuming it's the same one 🤔).
This was taken with my wide-angle lens; it let me get very close 🤯
I forgot to look if it was banded 💍😬
This was taken with my wide-angle lens; it let me get very close 🤯
I forgot to look if it was banded 💍😬
September 29, 2025 at 5:55 AM
In honour of our Bird Of The Year, this one hangs out near Arrowtown (I've met it several times; assuming it's the same one 🤔).
This was taken with my wide-angle lens; it let me get very close 🤯
I forgot to look if it was banded 💍😬
This was taken with my wide-angle lens; it let me get very close 🤯
I forgot to look if it was banded 💍😬
Far canal 😁
(I forget which one this is... just downstream of Lake Pukaki, I think 🤔)
(I forget which one this is... just downstream of Lake Pukaki, I think 🤔)
September 24, 2025 at 11:58 PM
Far canal 😁
(I forget which one this is... just downstream of Lake Pukaki, I think 🤔)
(I forget which one this is... just downstream of Lake Pukaki, I think 🤔)
The DAM other side!
September 24, 2025 at 11:55 PM
The DAM other side!
#Eclipse from Christchurch New Zealand 📷
Some wispy clouds getting in the way now ☹️
(Excuse my oh-so-complicated set-up of small binoculars duct-taped to my tripod 😄)
Some wispy clouds getting in the way now ☹️
(Excuse my oh-so-complicated set-up of small binoculars duct-taped to my tripod 😄)
September 21, 2025 at 7:01 PM
#Eclipse from Christchurch New Zealand 📷
Some wispy clouds getting in the way now ☹️
(Excuse my oh-so-complicated set-up of small binoculars duct-taped to my tripod 😄)
Some wispy clouds getting in the way now ☹️
(Excuse my oh-so-complicated set-up of small binoculars duct-taped to my tripod 😄)
"Pythagorean Triangles" all have incircles of whole-number radii!
Here's 10:
Here's 10:
September 16, 2025 at 11:04 PM
"Pythagorean Triangles" all have incircles of whole-number radii!
Here's 10:
Here's 10:
New Chum Valley (looking north-ish) behind Arrowtown, New Zealand. 06/01/2025 ⛰️📷
August 29, 2025 at 9:03 PM
New Chum Valley (looking north-ish) behind Arrowtown, New Zealand. 06/01/2025 ⛰️📷
Some views from Mt Hutt today 🏂🏻
A glorious sunny day, so heaps of people 🌞
(It's hard to take a photo when you can't really see the screen 😬)
A glorious sunny day, so heaps of people 🌞
(It's hard to take a photo when you can't really see the screen 😬)
August 23, 2025 at 7:40 AM
Some views from Mt Hutt today 🏂🏻
A glorious sunny day, so heaps of people 🌞
(It's hard to take a photo when you can't really see the screen 😬)
A glorious sunny day, so heaps of people 🌞
(It's hard to take a photo when you can't really see the screen 😬)
🤔 Taking "T" is a big stack of good books! 😆
(List courtesy of goodreads.com 👍)
(List courtesy of goodreads.com 👍)
August 21, 2025 at 11:34 PM
🤔 Taking "T" is a big stack of good books! 😆
(List courtesy of goodreads.com 👍)
(List courtesy of goodreads.com 👍)
🤔 Might help with the brain leakage? 😄
August 20, 2025 at 8:20 AM
🤔 Might help with the brain leakage? 😄
👍🏻
Reminds me of "Puddle" by M. C. Escher (1952 woodcut)
Reminds me of "Puddle" by M. C. Escher (1952 woodcut)
August 17, 2025 at 1:05 AM
👍🏻
Reminds me of "Puddle" by M. C. Escher (1952 woodcut)
Reminds me of "Puddle" by M. C. Escher (1952 woodcut)