Starship Asterisk*

Hi Tom! What you call a simple correction in the APOD description has a deep meaning IMHO and deserves some further toughts. As we pointed out the comet is at the right place for the date and time declared by the author but there's a whole amount of sky that doesn't show up to the West. At the time ...

Thanks for featuring my image as APOD!

I think I figured out where Proxima Centauri is in the field: Am I right??

Best regards

Thanks for featuring us as APOD! For what concerns the colours, I haven't done too much except giving an initial stretch to the image and then saturate it. Surfing around the net, this area is usually strongly red. In my opinion this skyscape has some interesting OIII emissions that turn it towards ...

The real point is that anyone who understands astronomical imaging will surely take into account that this image is a composition of data whose sampling goes from ~0.05"/px to ~1"/px. Ground based observations mixed with space data, different filters, PSF, etc... Precisely answering on the...

Yeah, that's correct. I could have removed them exactly in the way you said. I've chosen spike instead, maybe not the best choice

4 spikes --> to hide blooming + 4 other spikes at 45 degrees compared to the previous 4 --> Gendler's image

Why do the brightest stars have 8 spokes, and the medium bright stars only 4? Is this an artifact of combining two different telescopes? I used StarSpikes Pro in PS to by pass, from an aesthetical point of view, the heavy blooming that was affecting the brightest stars. 8 or 4 spikes is due to this...

Thanks so much Ann for the kind words!!!

These topics are really mind-blowing!!

Don't they look to a bean too, isn't it ?? LoL

I can see something, like a whisker, in the region highlighted by a red circle in the following screenshot: https://s23.postimg.org/e750zierf/Screen1.jpg Looking at the red channel, assembled but NOT yet cleaned, I can find it as well: https://s23.postimg.org/ujf2p8t2z/Screen2.jpg I don't think it i...

Thanks so much, Ann.

Bests,
Roberto

Thanks so much Dan for the kind words. I would say that it is not strictly required to have deep knowledges of physics to make such compositions. The OmegaCAM manual, for instance, is just useful for understanding the sensor layout (which are the chips/filters/orientation, where are the gaps, etc......

If I am right so far then Mr./Sr. Colombari composed the image we see using both his photo and that data. If anyone knows how the process works I would be interested to hear about it. Yes, exactly. Eric and I recorded a wide field image of this area (~1.604arcsec/px) with a 350mm F3.3 astrograph + ...

Hi Ann!
Thanks a lot for appreciating. It is just a RGB image.

I clicked on the link and it works, isn't it?

Bests,
Roberto

Geckzilla wrote: This happens almost every time one of Roberto's images is run. He doesn't clean up all of the dirt and artifacts as well as he could. This may well be true. For me personally, however, who look at the overall impression of the image and at details that obviously aren't artifacts, y...

This happens almost every time one of Roberto's images is run. He doesn't clean up all of the dirt and artifacts as well as he could. [Joking mode on] Also my wife always complains I leave dirty stuff all around the house everyday :evil: Next time I'll try to clean it up better :lol2: [Joking mode ...

It is blooming on M84 core on the Subaru data partially removed with HST data

I would have been really happy to have a more noble version/excuse but unfortunately this is an artifact

M106 - HST / Subaru / Amateur data This image is the composition of frames from the Subaru telescope (R+ band) and Hubble Space Telescope observations for the galaxy core (assembled and processed by Robert Gendler). The overall luminance has been colorized with a former image by Giovanni Paglioli. D...

Hi!
Yes it is for sure a mistake I did in the assembling, not at all a coincidence.

Bests

In this image the NASA/ESA Hubble Space Telescope takes a close look at the spiral galaxy NGC 4217, located 60 million light-years away from Earth. The galaxy is seen almost perfectly edge on and is a perfect candidate for studying the nature of extraplanar dust structures — the patterns of gas and ...

This image has been composed using frames from my Takahashi FS60c (SBIG8300): L: 19x420s Ha: 15x900s RGB: (7, 7, 7)x420s Belo Horizonte (southern side of the city), MG, Brazil enhanced, in the eta carinae surroundings, with frames done with a 11" Rowe Ackermann astrograph at F2.2 by Cristóvão J...

LHaRGB image composition using frames from my APO TS 80mm/480mm and SBIG8300.

Ha: 22x600s
L: 38x300s
RGB: (42, 39, 7)x300s

Belo Horizonte (southern side of the city), Brazil
http://www.astrobin.com/150689/

Thanks to all, first.
Probably it is some kind of dust as Judy wrote.

I should have removed them using the clone tool but the desire of publishing the image before Christmas predominated
I'll do a second "cleaned" version in few days.

Bests,
Roberto