The Flat Earth Society

Other Discussion Boards => The Lounge => Topic started by: JJA on February 04, 2021, 10:35:45 AM

Title: Star Trails
Post by: JJA on February 04, 2021, 10:35:45 AM
I just wanted to show off a picture I took for a discussion elsewhere, thought some of you might enjoy this.

I also need validation for all the hours I spent on this last night. :)

(https://i.imgur.com/XJiUnN4.jpg)

Not looking for any debate with this post, but feel free to take it to another forum if you wish.
Title: Re: Star Trails
Post by: JimmyTheCrab on February 04, 2021, 10:37:30 AM
Nice photo.

Though it clearly shows how the rest of the galaxy is flat as well.
Title: Re: Star Trails
Post by: faded mike on February 04, 2021, 11:59:54 PM
I really like your picture!
Whats with the "perturbations", if you will, at the top and sides?
Title: Re: Star Trails
Post by: JJA on February 05, 2021, 01:32:45 PM
I really like your picture!
Whats with the "perturbations", if you will, at the top and sides?

You mean where the star trails shift a bit suddenly?  That's me bumping the camera while changing batteries.  Tried to be as careful as I could, but no help for it.  I've got a charger on order so it will be better next time as I can just leave it and not touch it at all.

Assuming I get another clear night.. that was the first one all year!
Title: Re: Star Trails
Post by: faded mike on February 06, 2021, 05:24:48 PM
I really like your picture!
Whats with the "perturbations", if you will, at the top and sides?

You mean where the star trails shift a bit suddenly?  That's me bumping the camera while changing batteries.  Tried to be as careful as I could, but no help for it.  I've got a charger on order so it will be better next time as I can just leave it and not touch it at all.

Assuming I get another clear night.. that was the first one all year!
Were not getting many clear nights around here either.
Title: Re: Star Trails
Post by: Curiouser and Curiouser on February 07, 2021, 09:09:01 AM
Awesome photo. Could you share details of what equipment and what settings? Thanks!
Title: Re: Star Trails
Post by: JJA on February 07, 2021, 04:24:59 PM
Awesome photo. Could you share details of what equipment and what settings? Thanks!

Thanks!  I used an Olympus mirrorless body with a 20mm f1.7 lens at 200 iso, 30 second exposures taken over about 3 hours.  I was lazy and didn't remove the planes and some clouds, might do that at some point since I won't get another clear night for a while.

It was well below freezing so I had to shoot through a window, which surprisingly didn't affect the quality as badly as I feared.

Here's a crop of one frame showing Polaris.

(https://i.imgur.com/VvAm4el.jpg)