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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

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Today's Prominences & New Active Region with Looping Filaments! 120mm HA, Sept 29th 2018

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MalVeauX
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Today's Prominences & New Active Region with Looping Filaments! 120mm HA, Sept 29th 2018

Post by MalVeauX » Sat Sep 29, 2018 4:28 pm

Heya,

A great prom has developed on the limb, and a little active region with some flaring has woken up since yesterday and it has two small visible umbra with a filament near it, the filament(s) are looping or spiraling, quite interesting, with flaring around it, quite nice to look at in higher resolution. Hopefully it will quickly develop into a full blown spot with a numerical designation. I grabbed a few frames of data over 30 minutes and managed an animation to show the very fast dynamic movement of the filament.

Celestron Omni XLT 120mm F8 Refractor + Quark + ASI174MM

B&W:

This first one is an animation of 30 minutes time lapsed:

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Color:

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Earth Scales:
EarthScale01.jpg
EarthScale01.jpg (82.87 KiB) Viewed 625 times
EarthScale02.jpg
EarthScale02.jpg (137.67 KiB) Viewed 625 times
EarthScale03.jpg
EarthScale03.jpg (108.24 KiB) Viewed 625 times
Very best,

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Re: Today's Prominences & New Active Region with Looping Filaments! 120mm HA, Sept 29th 2018

Post by ffellah » Sun Sep 30, 2018 3:01 am

A great set, including the animation. Thank you for this first view of the new small active area.

Franco

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Re: Today's Prominences & New Active Region with Looping Filaments! 120mm HA, Sept 29th 2018

Post by Derek Klepp » Sun Sep 30, 2018 8:28 am

Thanks Marty great animation

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Re: Today's Prominences & New Active Region with Looping Filaments! 120mm HA, Sept 29th 2018

Post by marktownley » Sun Sep 30, 2018 11:38 am

Congrats on a fine set of images Marty!
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