My astrophotography 2021

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

The sickle

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

I was trying to capture both Denebola and Melotte star cluster in the same frame. Later I found out that the Virgo galaxy cluster happened to be in the same view.

Now under the very poor condition (short total exposure, tiny photo bucket: 50mm/F1.4 at F2.8, and terrible light pollutions), it is super fun to identify as many Virgo galaxies as possible.

A dozen of the brightest ones did show up and got easily identifiable images.

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

Closeups of a few identified galaxies in the Virgo cluster. It is hunting cosmic objects at >50mly distance with a standard camera lens (50mm FL).

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

Woke up this early morning to the mostly clear skies. Went down to the garden and collected a few dozens of short exposures of the milky way section from M8-M17.

Then the position was a bit unfavorable -- at low altitude and under light pollution. I was too lazy to drag and drive to slightly darker site.

The image still suffers CA when 105mm lens aperture down to F4 from F2.5. Hmm. Maybe it is time to upgrade.

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

2021-June-3 Western Evening Sky

Venus is approaching M35, which is however not visible behind the skyglow and thin clouds.

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Mars has climbed above the twin stars in Gemini, heading towards M44 the Beehive cluster.
hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

Chinese Spacestation Tianhe transits Singapore evening sky around 20:29.

[youtube]https://youtu.be/CBS-pf4HECE[/youtube]
hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

2021-June-4

The crescent moon had risen after midnight when I was back from a bike ride and washed.

Always fascinated by the cresent moon.

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

Am a super fan of galaxies.

A total of 145min Lum exposures captured by a 200RH remote telescope allow me to examine the rich Virgo galaxy cluster. Despite the wide field, the super high-resolution camera still captures nice details of those larger individual galaxies.

The full frame
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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

M88 is located in the far lower-left corner -- which is, unfortunately, the only corner that suffers much aberration. Here is the 100% crop.

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hhzhang
Posts: 387
Joined: Sun May 10, 2020 4:11 pm
Favourite scope: 115mm APO

Re: My astrophotography 2021

Post by hhzhang »

The Markarian's chain part

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