How many followers does Joe Callingham have on Bluesky?

Joe Callingham (@astrojoe.bsky.social) has 4,285 followers on Bluesky. The count is refreshed continuously from the public AT Protocol.

When did Joe Callingham join Bluesky, and how old is the account?

Joe Callingham joined Bluesky in July 2023. The @astrojoe.bsky.social account is 3 years old. Searches for Joe Callingham age often mean a personal age, which we do not publish. The figure here is the account age only.

How many posts has Joe Callingham published?

Joe Callingham has published 245 posts on Bluesky. That is about 0.2 posts per day over the life of the account.

Is Joe Callingham verified on Bluesky?

@astrojoe.bsky.social does not currently show a Bluesky verification. Many real accounts on Bluesky are unverified, since verification is still rolling out.

Joe Callingham Bluesky Profile Stats

@astrojoe.bsky.social

English EducationTier C

View on Bluesky

Account age: 3 years (joined July 2023)

Joe Callingham Bluesky stats, updated continuously. @astrojoe.bsky.social has 4,285 followers and 245 posts on Bluesky. Account age: 3 years (joined July 2023).

Followers

4.3K

Growth (7d)

Following

270

Posts

245~0.2/day

Influence

Follower growth

2026-06-14+12 over 2 days2026-06-22

Bio

Dutch-Australian | Astrophysicist | Head of the Square Kilometre Array (SKA) Science Group at ASTRON | Associate Professor at the University of Amsterdam

Notable followers

The biggest accounts in our directory following @astrojoe.bsky.social.

Tyler Black, MD13K Dr Becky Smethurst12K remy siu | 1000xRESIST8.4K Dr. Skylar Grayson7.9K Alec Muffett5.2K

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Joe Callingham on Bluesky - frequently asked questions

How many followers does Joe Callingham have on Bluesky?: Joe Callingham (@astrojoe.bsky.social) has 4,285 followers on Bluesky. The count is refreshed continuously from the public AT Protocol.
When did Joe Callingham join Bluesky, and how old is the account?: Joe Callingham joined Bluesky in July 2023. The @astrojoe.bsky.social account is 3 years old. Searches for Joe Callingham age often mean a personal age, which we do not publish. The figure here is the account age only.
How many posts has Joe Callingham published?: Joe Callingham has published 245 posts on Bluesky. That is about 0.2 posts per day over the life of the account.
Is Joe Callingham verified on Bluesky?: @astrojoe.bsky.social does not currently show a Bluesky verification. Many real accounts on Bluesky are unverified, since verification is still rolling out.
What does Joe Callingham post about?: Joe Callingham is classified under Education in our directory. Bio: "Dutch-Australian | Astrophysicist | Head of the Square Kilometre Array (SKA) Science Group at ASTRON | Associate Professor at the University of Amsterdam".