Backyard Astronomy

**Cantih** · 2022-09-27 01:39

Originally Posted by Tyrath

Giant planets like Jupiter and Saturn have a solid planetary core beneath a thick envelope of hydrogen and helium gas.

Metallic hydrogen, that's how much pressure there is.

**TummieGaruda** · 2022-09-28 12:31

Originally Posted by Outlaw

Could post some pictures please if you can? Even if I had a telescope right now it wouldn't do any good. Mountains, big trees everywhere, etc.

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My seeing conditions were pretty bad and I was in a hurry because Jupiter was about to disappear behind my neighbors house. I rushed it and didn't go through my internal checklist that I forgot to bin my camera so Jupiter was horribly oversampled and I couldn't get properly focused. I am going out tonight to redo it even though the event passed.

**Outlaw** · 2022-09-28 21:58

What kind of telescope do you have? Get technical if you want.

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**Cantih** · 2022-09-28 22:25

Originally Posted by Outlaw

What kind of telescope do you have? Get technical if you want.

" ... And what are you wearing"

**Delayed** · 2022-09-29 03:13

Bought an ad8 apetura last year, got to see the rings of Saturn tonight and jupiter along with 4 of its moons.
Probably the coolest sight I've seen in my life, and I'm pretty proud to have seen it with my own stuff from my backyard.
It makes me want to buy more things, but I'm pretty overwhelmed with what accessories to get.
I just got a6mm goldline but it didn't help with seeing anything that didn't appear as a light blob.

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**6souls** · 2022-09-29 10:39

https://twitter.com/astro_jaz/status...z5jNowDsCtEZtw

**Delayed** · 2022-09-29 23:05

Originally Posted by 6souls

https://twitter.com/astro_jaz/status...z5jNowDsCtEZtw

Gotta be shopped right?

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**6souls** · 2022-09-29 23:07

Originally Posted by Delayed

Gotta be shopped right?

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**TummieGaruda** · 2022-09-29 23:29

Originally Posted by Outlaw

What kind of telescope do you have? Get technical if you want.

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I have a Celestron C8 SCT for deep space and planetary work and a Williams Optics GT71 APO Triplet for wide field. I also have the ZWO ASI224MC for planetary/lunar captures and the ZWO ASI2600MC Pro cooled camera for nebulas and galaxies. I live in a bottle 5 zone (used to live in a Bortle 8 city) so I use an Optolong L-Extreme filter which has 7nm bandpasses for OIII and Ha. I haven’t had a chance to use the filter with the new 2600 camera but I am going to give it a shot soon as I want to capture the Veil Nebula before Cygnus bows out for the year.

**Outlaw** · 2023-01-10 18:39

Get out your telescopes! This one will never be seen by people again.

The new year has just begun, but the cosmos are already set to make history in 2023. A bright green comet discovered less than a year ago has traveled billions of miles from its believed origins at the edge of our solar system and is in the process of making its only recorded appearance visible from Earth.

https://www.cbsnews.com/news/comet-e...history-earth/

Easily visible with a telescope throughout this month and maybe with good binoculars. Closest approach to Earth on Feb. 2.

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**synistar** · 2023-04-23 19:29

Anyone in the northern US latitudes - https://twitter.com/spacewxwatch/sta...85747566145536

**Tyrath** · 2023-08-07 17:56

I'd been meaning to get a more portable telescope because I made the big oopsie of getting a big clunky one as my first one. Then I ran into this kickstarter. Anyone know about it? Pros, cons, etc? Seems useful for a noob

https://www.kickstarter.com/projects...mart-telescope

Edit: Already noticing the motorized mount, finder and laser are not included and will be available in the future so meh

**TummieGaruda** · 2024-02-25 03:24

So I've finally gotten a chance to use my new ASI2600MC Pro cooled camera on my refractor a few weeks ago. Went after the Rosette Nebula and got almost 6 hours of imaging done over two nights. I could've done more, but on the final night, the nebula was dipping behind my neighbors roof so I gave up.

The image below is 69x300second exposures stacked using an L-eXtreme filter to only capture Hydrogen Alpha and Oxygen III. The imaging processing program I use allows me to split the RGB channels and recombine them using some math to create a false color Hydrogen, Oxygen, Oxygen image where those elements are assigned to specific RGB channels.

**Tyche** · 2024-02-25 07:14

What does it look like without the processing and coloring? I've ways wonderes that with nada photos.

Also, good reminder to order eclipse glasses early. Shit sold out a few years ago.

**Cail** · 2024-02-25 08:52

amazing

**Salodin** · 2024-02-25 10:27

Incredible dude

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**TummieGaruda** · 2024-02-25 14:52

Originally Posted by Tyche

What does it look like without the processing and coloring? I've ways wonderes that with nada photos.

Also, good reminder to order eclipse glasses early. Shit sold out a few years ago.

Here is a single 5 minute exposure

And then all of the exposures stacked:

In the stacked photo, you can see a gradient which is caused usually by the optical train which can be removed in post.
The colorful HOO image is just a representation to show off the gasses present and to help reveal structures. While this isn't the Hubble palette, I would need a second filter that specializes in SII/OIII and then shoot a sperate 4-6 hour stack with those filters and then with some voodoo split and combine the channels to map SII to Red, Hydrogen Alpha to Green, and OIII to Blue.

**Outlaw** · 2024-02-25 15:26

Originally Posted by TummieGaruda

That is some HQ work! Good job!

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**TummieGaruda** · 2024-02-25 20:32

Thanks everyone. I am going after the Heart Nebula next week as we should have clear and calmer skies.

**jelkwaz** · 2024-02-26 09:11

That's absolutely stunning.

Are you in an area with a lot of light pollution? I've always been interested in this kind of photography, but I'm in metro Atlanta so I assume that the light would make it difficult.