Celestial hemisphere:  Southern  ·  Constellation: Sextans (Sex)
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Active asteroid 6478 Gault with two tails - 2019-03-14T11:30, Freestar8n
Active asteroid 6478 Gault with two tails - 2019-03-14T11:30
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Active asteroid 6478 Gault with two tails - 2019-03-14T11:30

Getting plate-solving status, please wait...
Active asteroid 6478 Gault with two tails - 2019-03-14T11:30, Freestar8n
Active asteroid 6478 Gault with two tails - 2019-03-14T11:30
Powered byPixInsight

Active asteroid 6478 Gault with two tails - 2019-03-14T11:30

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Acquisition details

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Description

This is my second attempt at this asteroid and I was able to image the second short tail. It is a faint object and requires dark skies - which was a challenge for me with about 18.4 mag skies.

EdgeHD11 at f/7 with ASI1600 and C filter. 14x5m = 70m exposure. 0.4" per pixel.

Guided with OAG using shift-guiding in MetaGuide to track the asteroid itself while guiding on a star. This is important for being able to use long exposure while still capturing detail.

A related image from similar time is at:

https://www.virtualtelescope.eu/2019/03/13/6478-gault-the-double-tailed-asteroid-a-new-image-12-mar-2019/

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Active asteroid 6478 Gault with two tails - 2019-03-14T11:30, Freestar8n