Our Beautiful Universe - Photos and Videos

[bruha]

Hi its very interesting, ( I quess as its opposite to northern sky, Aldeberan is in direction upper right ? - as I could track pleiades by help of Venus...)

Two moon imges.. not sure if better is colour or B/W...

Hi and lot of succes

 

[davenn]

I quess as its opposite to northern sky,

Yes it is

Aldebaran is in direction upper right ?

for me, yes, some distance off the upper right corner of the image

last nite's pic
05 Apr. 2020 Venus and Pleiades from home
West Ryde, NSW, Australia
Canon 6D, 1/5 sec exp, f5.6, 400mm, ISO 4000

cheers
Dave

 

[bruha]

Hi, thank you , I send moon image from yesterday (we have almost full moon now)...

 

[bruha]

Hi, I attach Venus image from yesterday... (proc. by GIMP) , its not very satisfying.. have you somebody some Venus images..?
Hi and lot of succes...

 

[chemisttree]

ISS flyover, 4/2/20 9:15pm. 1/1600s 800/5.6 ISO1250:

View attachment 259946

Definitely best images yet.
Edit: I figured out how to post the 'video':

View attachment 259948

Ah, so an alt-az mount you have!

 

[Andy Resnick]

Ah, so an alt-az mount you have!

My non-motorized tripod has a gimbal mount, yes. My motorized tripod (astrophotography) is a Losmandy GM-8 German Equatorial mount. The only real trick is that the non-motorized tripod can be arranged to allow the lens to point directly toward zenith- there used to be a pic on the web, can't find it now.

 

[chemisttree]

My mistake. Looked a lot like frame rotation to me.

 

[Andy Resnick]

My mistake. Looked a lot like frame rotation to me.

My ISS video does indeed have frame rotation! As the camera slews, the relative orientation between the camera and object rotates (the gimbal acts as an Az-El mount). The lens has a adjustment allowing rotation with respect to the tripod, but when ISS is moving there's no time to fiddle around with stuff like that.

 

[davenn]

My mistake. Looked a lot like frame rotation to me.

You do realize that the ISS is constantly turning ?

 

[bruha]

Hi, here is my last Venus image from yesterday...original and saturated image -, I quess if this light spot on saturated image just below Venus could be some object (star)...

 

[davenn]

Hi, here is my last Venus image from yesterday...original and saturated image -, I quess if this light spot on saturated image just below Venus could be some object (star)...

cut down the exposure time substantially. It's way over-exposed and blown out

 

[bruha]

Thank you, ok

 

[bruha]

 

[davenn]

Not too bad

couple of comments ...
1) I have noticed in several of your recent photos a black blob ... maybe you have a lump of dust
or something on one of the lenses that need cleaning off ??

2) not sure why you are getting all that colour in there ?
The Moon should be a relatively uniform grey ( shades of). It's not a bad thing as such,
it's just not a normal thing cheers
Dave

 

[chemisttree]

I kinda like the colors. The Moon as we wish it would be!

Another thing to try would be to use a red filter and post it (convert it) in black and white. Red really cuts down on atmospheric disturbances and the image will be much sharper.

 

[bruha]

Hello, and thank you for comments , yes I will check my all lenses..
Concerning image saturation, I just read some time ago, instruction for moon imaging and there was suggested some saturation as illustration of different rock type of moon... (but I am not of course well educated in this problematic..) Thank you and lot of success

 

[Andy Resnick]

A view of https://skyandtelescope.org/observing/yanking-markarians-chain/, in Virgo:

30 minutes exposure @ ISO 1250, 400/2.8 full-frame. There are about 40-50 galaxies visible, although maybe not in this highly downsampled image. What is notable is my (new) ability to perform flat-field correction over the entire image, not just the central 40% or so.

I'll probably be able to retrieve my external hard drive (w/ 3 TB of 'good enough' astro images for stacking) this week or next from my office. Something to do... I should be able to re-create the top half of this.

 

[Andy Resnick]

Some preliminary re-stacking results; I'm totally fanboy crushing on the new software.

Here's M101: 400mm DX format, 6h integration: full image, then some crops-

Next, the trio of galaxies in Leo- again, 400mm DX format; full image and then some crops, 4h 45m integration time-

And a 1:1 crop of M51, also 4h 45m integration time:

Lastly, some 1:4 downscaled crops of the Milky Way, taken at 105mm:

My images are getting close to print-worthy! The Virgo cluster panorama looks great as well but is too large to meaningfully post here. Next up on the re-stack schedule is M13, M3, and M53.

 

[bruha]

Hello, I attach 5 moon image from yesterday little processed (maybe some interesting)
Your galaxy images are amazing

 

[davenn]

Hello, I attach 5 moon image from yesterday little processed (maybe some interesting)
Your galaxy images are amazing

Again, as I said some posts back, cut down your exposure time so that the images don't get overexposed
They are a good effort but will look so much better with some exposure adjustments

I see you still haven't found those black dust (or whatever) blobs on the sensor or lens
give your optics a good cleanDave

 

[bruha]

Hello and thank you form evaluation. These were made by bresser camera applied instead eyepiece. I have possibility just adjut contrast , brightnes and saturation... Black spots is probable problem of scope mirror. . but I must check camera as well
Have nice day

 

[bruha]

Hello, problem is on bresser camera...Nowadays is almost full moon unfortunately here in Czech rep. //

 

[DennisN]

The images show the warm, deep layers of the planet’s atmosphere glowing through gaps in thick cloud cover. Photograph: International Gemini Observatory/NOIRLab/NSF/AURA M.H. Wong (UC/EPA)

Source: Astronomers capture new images of Jupiter using 'lucky' technique (The Guardian, 8 May 2020)

 

[bruha]

Hello, here is image of Venus from yesterday (by Bresser eyepiece camera) ...

Jupiter image is really amazing... (how this cloud cover is approx. thick?)

 

[davenn]

Hello, here is image of Venus from yesterday (by Bresser eyepiece camera) ...

very good

 

[davenn]

The moon from Friday nite (8th May 2020)

some hours after full Moon

 

[bruha]

hello, thank you,,
your moon image is very impressive, it is somehow processed?

Have nice day

 

[davenn]

hello, thank you,,
your moon image is very impressive, it is somehow processed?

Have nice day

Just very lightly in Lightroom, a bit of contrast and a little sharpening.
That needs to be done as I always photograph in RAW to get the best data saving
It only gets converted to a .jpg to be able to post on forums etc

The Moon was quite low in the sky, so a bit of atmospheric distortion and colouring was present

Dave

 

[bruha]

thank you , I see...
(I mostly did some colour saturation as well .. somebody say it could be real colour discrimination of different rock types but I am not sure )

 

[chemisttree]

Venus tonight very low in the sky. Notice the atmospheric refraction. (it couldn't be my poor focusing or, gasp!, my refractor optics. no no no...)

AstroTech 80ED, Canon 30D, 1/160sec ISO250, Oberwerk blem tripod, Universal Astronomics Unistar lite mount