Sky Watcher

This was a thirty second snap taken during the period while I was imaging Comet 46P/Wirtanen through my SkyWatcher ED120 telescope. While imaging through the telescope this night, I also had my DSLR camera piggy-backed in the position where the guidescope normally sits above the main telescope.

The comet can be seen as a very tiny fuzzball, close to dead centre, although WordPress has removed the green colour. The red tube is of course my SkyWatcher telescope.

Also visible, lower left are the Pleiades and the Hyades in Taurus.

Here is a cropped view, in which WordPress has retained a little bit of colour :

2018-12-08 Astro Stargard Comet 46P Wirtanen Dead Centre Crop


Wide field.
Constellations: Taurus, Eridanus and Orion.
Altitude to centre:  59° above NE horizon.


Exposure: 1×30 sec.
ISO: 1600.
Date: 2018-12-08 10.55 pm.
Location: The Oaks, NSW.


Sky: semi-dark rural.
Cloud: clear.
Moon: no.


Image post-processing: GIMP.
Cropping: no.


Canon 60D piggy backed on telescope.
Focal length: 50 mm.
Focal ratio: not recorded.
Guiding: off.
Tracking: on – SkyWatcher EQ6-R.
Polar aligning method: QHYCCD PoleMaster.
Polar alignment error: 1′ 51″.
Field flattener: no; filter: no.

Observing Notes:

Last use of EQ6-R mount before warranty replacement.

Ground to sky verticle is estimated to be approximately bottom left corner to top right corner.


Concurrent Comet 46P/Wirtanen image with main telescope.
Star Clusters in Taurus.


Image © R.Powell


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