By Nishat Khan | 2024-05-10
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![Community photo entitled Giant sunspot AR3664 by David Hoskin on 05/11/2024 at Halifax, Nova Scotia, Canada](https://ecp.earthsky.org/upl/gravity_forms/6-d613a712aa1020729eb530187e1fe51d/2024/05/AR3664.png)
Giant sunspot AR3664
On 05/11/2024 11:30 am by David Hoskin| Halifax, Nova Scotia, Canada
After last night's spectacular aurora I thought it appropriate to image giant sunspot group AR3664 as it starts to rotate out of view.
SkyWatcher 120mm f/8.3 refractor, APM Herschel wedge, ZWO ASI290MM camera, SkyWatcher EQ6R mount.
Best frames stacked with AutoStakkert, wavelets adjusted with Registax, other post-processing with Photoshop and PhotoScape X.