Astrophotography diary

Equipment

The rig as it is now, then how it got here. Each session in the diary shows the kit it was really taken with, worked out from these dates.

Now

Telescope
Sky-Watcher 150P
  • Newtonian reflector
  • 150 mm aperture
  • 750 mm focal length, f/5

Source: telescopeyoke config.toml [scope]; the diary's about.md

Mount
Sky-Watcher EQ3 Pro GoTo
  • Equatorial, motorised, with a SynScan handset
  • Unguided: no guide camera

Source: the diary, 3 October; the diary's about.md

Camera
Altair Hypercam 183C On loan from a friend
  • Colour sensor (RGGB, from the FITS headers)
  • Binned 2×2: 1.32″ a pixel, as logged

Source: the diary, 3 October; FITS headers; depth.json plate scale

Computer
Laptop beside the tripod
  • Runs telescopeyoke, with Claude driving

Source: the diary, 3 October

Webcam
Webcam on the telescope
  • Photographs the telescope during every move

Source: the diary, 3 October

Focuser
Motor focuser
  • 28BYJ-48 stepper, 5 V, with a ULN2003 driver
  • Arduino Nano V3 clone
  • Printed bracket and coupler
  • £30.03 in parts

Source: the diary, 12 October

How it changed

  1. The telescope comes home, with a borrowed camera and the laptop to drive it

    Joined: Sky-Watcher 150P, Sky-Watcher EQ3 Pro GoTo, Altair Hypercam 183C, Laptop beside the tripod

    First light: the Ring and the Dumbbell

  2. A webcam to watch the telescope move, after a slew caught the handset

    Joined: Webcam on the telescope

    Claude, you are hooked up to a telescope

  3. telescopeyoke v0.1.0 released

    The release on GitHub

  4. telescopeyoke v0.2.0 released

    The release on GitHub

  5. telescopeyoke v0.2.1 released

    The release on GitHub

  6. Motor focuser fitted, replacing focusing by hand

    Joined: Motor focuser

    A motor focuser for £30

Software releases come from telescopeyoke's own tags. There is no autoguiding: the mount runs unguided, so no session shows a guiding figure.