One Night of EAA - 20210718 - Evoguide ED50 (altazastro)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Hercules Globular Cluster · M 13 · NGC 6205 · NGC 6207

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One Night of EAA - 20210718 - Evoguide ED50

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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One Night of EAA - 20210718 - Evoguide ED50

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

From right after midnight all the way to dawn's early light I tested SharpCap Pro Live Stacking features with the Skywatcher ED50 paired to the ZWO ASI 178MM by imaging a small collection of DSOs.

While the scope has a focal length of just 250 mm, the 2.4um pixels of the 178MM render objects on picture as they would look with a Canon EOS 1300D (4.3um pixels) paired with a 450 mm scope.

Darks and Flats were used.

It really taught me something.
One thing is that a full fledged stacking program like Astro Pixel Processor creates final images with less noise: I tried to livestack M101 (which I had already successfully imaged with the ED50 and the ZWO ASI 385MC OSC camera) but the result was so poor I had to drop it. However I still have to experiment with SharpCap Pro extra features against noise and banding, so a better result could be achievable.
Another thing is that I had also imaged M71, but I went on stacking pics when the sky was getting lighter shortly before 5 am and these were very noisy pics that spoiled the whole stack: with livestacking you cannot exclude bad pics and rerun!

Overall however the experience was very positive, considering also the small scope and the urban sky.

All final images have been post-processed to a moderate extent with StarTools, but the live view on the monitor was not much different.

Final
Original
B
C
D
E

B

Description: M92 - 201x10s

Uploaded: ...

C

Description: M57 - 202x10s

Uploaded: ...

D

Description: M27 - 160x10s

Uploaded: ...

E

Description: NGC6229 - 200x10s

Uploaded: ...

Low-Cost Astrophotography
Broadband under Bortle 7/8/9

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	4754577
PixInsight job	n/a
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One Night of EAA - 20210718 - Evoguide ED50

One Night of EAA - 20210718 - Evoguide ED50

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One Night of EAA - 20210718 - Evoguide ED50

One Night of EAA - 20210718 - Evoguide ED50

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