You've found the Dan Birchall who:
- Earned a Graduate Certificate of Science in Astronomy from Swinburne
- Observed 300+ half-nights for the Nearby Supernova Factory and SNFactory II
- Observed at the UK Infrared Telescope for a night or two
- Operated the University of Hawaii's 88-inch telescope
- Operated Japan's national Subaru Telescope
- Operated various telescopes in various places for MIT's Lincoln Laboratory
- Visited numerous classrooms for Journey Through The Universe
- Volunteered at the Visitor Information Station on Maunakea
- Was a laser spotter at the W.M. Keck Observatory and Gemini Observatory
- Lawrence Berkeley National Laboratory
- Massachusetts Institute of Technology, Lincoln Laboratory
- National Astronomical Observatory of Japan
- Research Corporation of the University of Hawaii
- Swinburne University of Technology
- University of California, Berkeley, Space Sciences Laboratory
- University of Hawaii, Institute for Astronomy
The astronomy-related Birchalls of Australia - grad student Eloise and software engineer Michael - are either unrelated to me, or related so distantly that I don't know how we're related.