开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

Light pollution Masson area

 

Hi,?

just North of the ferry Cumberland-Masson there appears to be an increase of light pollution related to the large weed plant /green houses. I knew it was there but I can now see it driving south from Mt Laurier as far as 50 km away (more clearly than Ottawa itself).? Did anybody notice it from the west end or central Ottawa?

Thanks,?

Marco


Re: Heart and Flaming Star Nebula

 

Hi Bob,

Good to hear from you.?

I'm using Antlia's dual narrow band filter with a OSC camera.? The bandwidth's are 5nm for Ha and Oiii.? I use the red channel as Ha, combine the blue and green channel for Oiii.? A third channel is synthesized with some pixel math.? The foraxx pallet and the pixel math is explained in the link below.? I do find it more interesting than hubble and so far all of you agree.



My first results with the dual narrow band filter were disappointing.? I was about to sell my OSC gear fund a mono setup.? With some practice and longer integration times the results have really improved and I'm happy with OSC for narrow band imaging.? Oscar's shot of the quintet did have me thinking about mono again..

Greg


Re: Heart and Flaming Star Nebula

 

开云体育

Hi Greg,

The RGB Heart is a very spectacular image.

I think I am missing something here though. Are you using Ha and OIII filters with an OSC camera?

Have a great day.

Bob


Re: Jupiter gif

 

Very cool Matt!? Planetary imaging ain't easy.

cheers,
Albert.


On Thu, Nov 10, 2022 at 9:55 PM Matt Weeks <northern.stargazer@...> wrote:
I had a bit of fun messing around with making short animations.? Thought I would share my most successful "test"? .? The experience in making this has given me an idea of what sort of data I need to make a longer, smoother one.


Re: Heart and Flaming Star Nebula

 

Wow.? All stunning images no matter the pallette!

cheers,
Albert.


On Mon, Nov 14, 2022 at 3:55 PM James Sofia <drsofia@...> wrote:
Great work Greg!

The foraxx pallet is nice.

Jim

On Monday, November 14, 2022 at 02:54:16 p.m. EST, gregz12@... <gregz12@...> wrote:


Appreciated the thoughts on the images.? I tried the "Foraxx" pallet for the first time.? Let me know what you think of Foraxx compared with the Hubble pallet.? All data captured in OSC and processed with a synthetic third channel.

Greg

Attachments:


Re: Heart and Flaming Star Nebula

 

Great work Greg!

The foraxx pallet is nice.

Jim

On Monday, November 14, 2022 at 02:54:16 p.m. EST, gregz12@... <gregz12@...> wrote:


Appreciated the thoughts on the images.? I tried the "Foraxx" pallet for the first time.? Let me know what you think of Foraxx compared with the Hubble pallet.? All data captured in OSC and processed with a synthetic third channel.

Greg

Attachments:


Re: Heart and Flaming Star Nebula

 

Ha. I was lost after "Appreciate your thoughts on the images."

I can say I like the red heart nebula the best though.?


Re: Heart and Flaming Star Nebula

 

Nice images. I prefer for Fornaxx pallette. However, I prefer less
color saturation.

But most astrophotoraphers use as least as much color saturation as
you have used.

Pretty images, though.

attilla danko, , danko@...,
attilladanko@...

On Mon, Nov 14, 2022 at 2:57 PM <gregz12@...> wrote:

[Edited Message Follows]

Appreciated your thoughts on the images. I tried the "Foraxx" pallet for the first time. Let me know what you think of Foraxx compared with the Hubble pallet. All data captured in OSC and processed with a synthetic third channel.

Greg


Heart and Flaming Star Nebula

 
Edited

Appreciated your thoughts on the images.? I tried the "Foraxx" pallet for the first time.? Let me know what you think of Foraxx compared with the Hubble pallet.? All data captured in OSC and processed with a synthetic third channel.

Greg


Re: Jupiter gif

 

nice image.


On Thu, Nov 10, 2022, 21:55 Matt Weeks <northern.stargazer@...> wrote:
I had a bit of fun messing around with making short animations.? Thought I would share my most successful "test"? .? The experience in making this has given me an idea of what sort of data I need to make a longer, smoother one.


Jupiter gif

 

I had a bit of fun messing around with making short animations.? Thought I would share my most successful "test"? .? The experience in making this has given me an idea of what sort of data I need to make a longer, smoother one.


Re: nice detail on jupiter tonight

 
Edited

Further investigation has lead me to believe that the left most dark marking is likely Mare Sirenum and Mare Cimmerium, the larger dark area on the right side is likely Mare Erythraeum.? Between them, along the meridian is the region I mention above, Aonius Sinus and Phaethontis.? The image is north down (you can see the north polar cap) and mirror imaged (West to the left)....I think. Ha.

Many moons ago I used to have a small app on my PC that would show me a map of Mars surface features based on date and scope configuration...I don't recall its name though.? I wish I still had it.


Re: nice detail on jupiter tonight

 

If I'm correct in reading Cartes Du Ciel - the central meridian in the picture of mars should be approximately 118 deg. If that's correct, the dark features should be Aonius Sinus and Phaethontis.? But I am far from certain on that.

Matt


Re: nice detail on jupiter tonight

 

Your Jupiter picture looks good to me.

Jupiter's polar diameter is a lot less than it's equatorial diameter
because of it's rapid spin. So Jupiter should always look like an
oval, not a disk.
Maybe that's why you have the impression that your image is lopsided.

I observed Mars last night too, but at fairly low power (190x). I saw
the same features as your image. Anyone know the name of the large
dark albedo feature along the top of Matt's image? I can only find
names of many much smaller features in the same area.

-ad




attilla danko, , danko@...,
attilladanko@...

On Wed, Nov 9, 2022 at 12:54 PM Matt Weeks <northern.stargazer@...> wrote:

I was out last night as well and agree, it was a nice view. Near full moon was always in the corner of my eye though. I decided to experiment using the mirror diagonal with my camera, instead of a straight visual back. This allowed me to swap the camera in and out easily so I could mix visual observing with lucky imaging without having to reconfigure my set up. Was actually quite nice to be able to do so. Below are a couple quickly processed images, one of Jupiter and one of Mars. I suppose I could measure this, but the Jupiter image looks "lopsided" or "stretched" a bit. I don't know if this is something caused by my mirror diagonal or if its simply an optical illusion due to the GRS being right on the limb...let me know what you think. Does Jupiter look "off" to you?


Re: nice detail on jupiter tonight

 

I was out last night as well and agree, it was a nice view.? Near full moon was always in the corner of my eye though.?? I decided to experiment using the mirror diagonal with my camera, instead of a straight visual back.? This allowed me to swap the camera in and out easily so I could mix visual observing with lucky imaging without having to reconfigure my set up. Was actually quite nice to be able to do so. Below are a couple quickly processed images, one of Jupiter and one of Mars.? I suppose I could measure this, but the Jupiter image looks "lopsided" or "stretched" a bit.? I don't know if this is something caused by my mirror diagonal or if its simply an optical illusion due to the GRS being right on the limb...let me know what you think.? Does Jupiter look "off" to you?


nice detail on jupiter tonight

 

With a shadow transit of Io in progress.


Re: Lunar eclipse

 

Up at 4:00.? Worth it.? Best I've seen in ages.

?Fred


--
This email has been checked for viruses by Avast antivirus software.
www.avast.com


Re: Lunar eclipse

 

开云体育

Hi Matt!
It was actually quite nice…a bit more grey, not quite as much of the orange at full eclipse but imagery was quite colourful. It was not in a good position to capture from my pod so I imaged with a 300mm lens from a tri-pod. Just prior to the start of the final phase into sunlight, trees and cloud took over. Had a nice occultation with my carriage house roof!! :-)

Cheers, Chris.


On Nov 8, 2022, at 9:20 AM, Attilla Danko <danko@...> wrote:

?
i saw the eclipse when the moon was halfway into earth's shadow. But passed out before totality.

On Tue, Nov 8, 2022, 07:51 Matt Weeks <northern.stargazer@...> wrote:
I couldn’t bring myself to get up early enough. Anyone see this morning’s eclipse?? How was it?

matt


Re: Lunar eclipse

 

i saw the eclipse when the moon was halfway into earth's shadow. But passed out before totality.


On Tue, Nov 8, 2022, 07:51 Matt Weeks <northern.stargazer@...> wrote:
I couldn’t bring myself to get up early enough. Anyone see this morning’s eclipse?? How was it?

matt


Lunar eclipse

 

I couldn’t bring myself to get up early enough. Anyone see this morning’s eclipse? ?How was it?

matt