Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  19 Tau)  ·  25 Tau)  ·  Barnard's Merope Nebula  ·  IC 349  ·  Maia Nebula  ·  Merope Nebula  ·  NGC 1432  ·  NGC 1435  ·  Sterope I (21 Tau)  ·  The star 18 Tau  ·  The star Alcyone (η Tau  ·  The star Asterope  ·  The star Atlas (27 Tau)  ·  The star Celaeno (16 Tau)  ·  The star Electra (17 Tau)  ·  The star Merope (23 Tau)  ·  The star Pleione (28 Tau)  ·  The star Sterope II (22 Tau)  ·  The star Taygeta (q Tau
M45 with Bahtinov focusing mask, Geoff Scott
M45 with Bahtinov focusing mask
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M45 with Bahtinov focusing mask, Geoff Scott
M45 with Bahtinov focusing mask
Powered byPixInsight

Equipment

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Acquisition details

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Description

Bahtinov Masks are a common diffraction pattern based device used to achieve accurate focus. This example is taken using the Pleiades open cluster as a target.

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M45 with Bahtinov focusing mask, Geoff Scott