Callum McCombs

Callum McCombs

Mastodon @callumm@mastodon.nz
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🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→

Every booking is a normal escrow-protected deal.

Followers
319
Account age
3 yrs

Known for

I love CNC machining these scale models of terrain. This one is centred on Wānaka, made from recycled rimu and treated with boiled linseed oil.81 views I love CNC machining these scale models of terrain. This one is centred on Wānaka, made from recycled rimu and treated with boiled linseed oil. Finally got around to processing images from a UC Physsoc field trip I went on to Mt. John observatory! Here are the results, all false colour narrow band stacks in Halpha, SII, and OII wavelengths #astronomy #astrophotography #astro15 views Finally got around to processing images from a UC Physsoc field trip I went on to Mt. John observatory! Here are the results, all false colour narrow band stacks in Halpha, SII, and OII wavelengths #astronomy #astrophotography #astro Diatoms from a wetland out by Tai Tapu. I’ve got absolutely no chance of IDing these, but they are fascinating and beautiful structures.15 views Diatoms from a wetland out by Tai Tapu. I’ve got absolutely no chance of IDing these, but they are fascinating and beautiful structures. Went on a field trip to UC’s Mt. John observatory with Physsoc. Absolutely fantastic to see all the telescopes and get some time on the 0.61m. #astronomy #astrophotography #UC11 views Went on a field trip to UC’s Mt. John observatory with Physsoc. Absolutely fantastic to see all the telescopes and get some time on the 0.61m. #astronomy #astrophotography #UC

📊 Post engagement

15
Avg engagement / post
4.7%
Engagement vs followers
Jan 2023
On Mastodon since

🔥 Top post: I love CNC machining these scale models of terrain. This one is · 81 likes + reposts

📊 Activity & format

Posting cadence
0.4 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 3 text · 9 image · 0 video.
Follower / following
0.4×
Follows 837 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post I love CNC machining these scale models of terrain. This one is centred on Wānaka, made from recycled rimu and treated with boiled linseed oil. ★ 81
I’ve been messing around with satellite imagery a bit for fun, you can get some really neat effects! This is a vegetation index from three Landsat-5 & 8 images taken thirty years apart stacked into a false colour composite, and it shows wh… ★ 8 I went on a trip to UC’s Cass Field Station for a mini bioblitz with folks from the school of biology, envirosoc, and biosoc. Our goal was to bring the Cass iNaturalist observations page to over 500 unique species, which we went well past.… ★ 9 Went to a townhall meeting with Minister James Shaw today. It was great to hear about the government’s progress, some positive stories amid the general misery of climate issues, and what we still desperately need to do. ★ 6 Finally got around to processing images from a UC Physsoc field trip I went on to Mt. John observatory! Here are the results, all false colour narrow band stacks in Halpha, SII, and OII wavelengths #astronomy #astrophotography #astro ★ 15 Went on a field trip to UC’s Mt. John observatory with Physsoc. Absolutely fantastic to see all the telescopes and get some time on the 0.61m. #astronomy #astrophotography #UC ★ 11 https://www.rnz.co.nz/news/national/491067/university-of-otago-staff-supporters-make-a-stand-over-job-cuts-plan ★ 1 Diatoms from a wetland out by Tai Tapu. I’ve got absolutely no chance of IDing these, but they are fascinating and beautiful structures. ★ 15 Did anyone else see a bright meteor over Christchurch around 11 minutes ago? Went on an amazing field trip to participate in the #CityNatureChallenge with UC’s Envirosoc. We went to Kaituna Valley, Birdlings flat, Okains bay, and finally Panama rock. It was a proper adventure and we saw some incredible stuff!! ★ 4 Found this little guy(?) in the botanic gardens yesterday. It was staying still enough that I figured I should try and take a photo with my film camera :) Needless to say, I didn't get too close! ★ 2 Anyone else feel like Picard season three is actually really solid? I didn’t like the first two seasons but S3 is fantastic! It’s been great seeing nearly the entire crew from TNG and some of VOY return

🐘 Community & instance

Home server
mastodon.nz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Jan 2023
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2023 — 3 years ago.
👁️Averages 15 views per post.
📤Posts about 0.4× per week.

🛡️ Audience credibility

80/100 Excellent
  • Est. 97% real, active audience · Low fake-follower risk.
  • Strong engagement (~4.7% of followers engage each post) — an active, real audience.
  • Established account (3+ years old).
Est. authentic audience
97%
Fake-follower risk
Low
Data confidence
High

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

I'm an undergrad student at the University of Canterbury, majoring in biological sciences. My favourite areas are ecology, satellite remote sensing, entomology, and astronomy. I’m currently working on a summer project to document lizard species on our campus.

📸 Gallery

I’ve been messing around with satellite imagery a bit for fun, you can get some really neat effects! This is a vegetation index from three Landsat-5 & 8 images taken thirty years apart stacked into a false colour composite, and it shows where the river has moved over time. I went on a trip to UC’s Cass Field Station for a mini bioblitz with folks from the school of biology, envirosoc, and biosoc. Our goal was to bring the Cass iNaturalist observations page to over 500 unique species, which we went well past. The landscapes were wonderful, and we saw some amazing creatures and flora. Went to a townhall meeting with Minister James Shaw today. It was great to hear about the government’s progress, some positive stories amid the general misery of climate issues, and what we still desperately need to do. Finally got around to processing images from a UC Physsoc field trip I went on to Mt. John observatory! Here are the results, all false colour narrow band stacks in Halpha, SII, and OII wavelengths #astronomy #astrophotography #astro Went on a field trip to UC’s Mt. John observatory with Physsoc. Absolutely fantastic to see all the telescopes and get some time on the 0.61m. #astronomy #astrophotography #UC Diatoms from a wetland out by Tai Tapu. I’ve got absolutely no chance of IDing these, but they are fascinating and beautiful structures. Went on an amazing field trip to participate in the #CityNatureChallenge with UC’s Envirosoc. We went to Kaituna Valley, Birdlings flat, Okains bay, and finally Panama rock. It was a proper adventure and we saw some incredible stuff!! Found this little guy(?) in the botanic gardens yesterday. It was staying still enough that I figured I should try and take a photo with my film camera :) Needless to say, I didn't get too close!

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

kcoyle checking the perimeter kcoyle checking the perimeter 13% Roni Äikäs ⚛️ Roni Äikäs ⚛️ 13% _sohalt _sohalt 12% RJ RJ 11% Sylvie Denis Sylvie Denis 11% Harry van Huijstee Harry van Huijstee 10%

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