HaleBopp2007

I bought a Skywatcher Esprit 80ED, and I'm getting fans instead of halos! I already tried a different camera than the one I use, but they're still there. It can't be due to the flattener eather, because rotating it, the halos point at the same direction... Does someone have an idea of what causes this?

Thanks.

On 17/04/2021 at 17:00, Davey-T said:

Nice one Bob, I've been trying to image C/2021 A1 (Leonard) lurking up around Ursa Major but decidedly dim.

Dave

Michael Jager did a report of magnitude 14 on it so maybe you could try now

I don't really know if A1 will be as good as F3 though... That thing was like a pool of caramel under dark skies! Let's wait and see! (no new observations yet) 

Two new reports that could be game changing! One of mag 16.2 in late July, and a mag 15.3 report a couple of days ago! 

PD: Light curve made by Gideon Van Buitenen 

It will be perfectly visible in early December at sunrise from the entire northern hemisphere, including the UK

It might reach naked eye visibility. It's still proportionally brighter than C/2020 F3, which by the way, was also insane. Even though it is still at magnitude 17, it has potential 

As Louis D said, the "Belt of Venus" happens at the opposite place of where the sun sets. And it cvobsist of the horizon getting fainter as Earth's shadow goes "upwards", unlike the thing I saw, which was an extra horizontal patch in the place where the sun had set, but slightly to the north. 

Yeah, it lasted between 30 and 40 minutes, so not too long. 

Ok, but it still seems a bit odd as I was at 36N latitude, but, oh well, first NLC show for me.

DISCLAIMER: Opinions are still welcome! Don't hesitate to share your thoughts, whether they agree or disagree with the other opinions! 

So, I went to a place to see some meteors, but around 40 minutes after sunset, something started showing up in the northwestern horizon. Around half an hour later, it was quite prominent. It looked like featureless noctilucent clouds, and had a silvery light blue color. Does someone know what can this be? 

Those look fantastic! I'm showing mine from July 22 (As seen with the naked eye) but I'm not really good at sketching, but, here it is... 

Ok, so I was stacking some exposures of the milky way, and when I got the final image, the program shook me with a weird coma effect in the top right corner. No, it's not because of the lens as single exposures were perfect. 

Does anyone know what is this, and/or how to solve this horrible issue? 

BTW, this is the image with removed edges, but the effect is still there

On 17/05/2017 at 17:53, gorann said:

More Liverpool Telescope data I am afraid, but what should a Swede do when the sun has decided to make the nights into twilight this time of the year?

For those that may have missed it the Liverpool Telescope is a remotely controlled 2 m RC scope on a  mountain top on La Palma, Canary Islands.

This image contains more Ha data than most of the others I have processed, which helped a lot to reveal the outer shells of this famous planetary nebula.

This is a HaRGB image while most of the other high resolution images of the Ring that I have seen are narrow band images, which may make this one a bit special. The big galaxy is IC1296 and there are a lot of faint fuzzies in there for which I have no names or numbers.

Filters and exposures used:

sdss-r  17 x 90 s

Ha  15 x 120 s (mixed 50:50 with sdss-r for red channel)

Bessell B 21 x 90 s (blue channel)

Bessell V 16 x 90 s (green channel)

So totally 1.85 hours of data stacked in Nebulosity 4 and processed in PS CS5

 

 

WOW that looks impressive! The barred spiral at top left makes it even better! 

The thing has disappeared from LASCO field. It could be a fast moving asteroid. But the hopes for a supernova are over

Maybe a supernova is waiting to give a spectacle! 

A star has appeared today in LASCO C3 camera field. It's negative magnitude, near the sun, but not enough to be in LASCO C2. It might be an outburst of a comet, or a SUPERNOVA. If this is the case, then it should be very bright in the next couple of weeks. 

Before

After

The comet is now officially below naked eye visibility... R. I. P

Seems to be a nice small-budget choice... Is it noisy? I'm quite influenced by my noisy camera and want to get the least noisy camera possible in an affordable budget... 

I searched for hours, and failed in finding a shop to modify nikon dslrs

I would definitely do that, except for the fact that in Spain, only Canon cameras are able to be modified in shops. 

That's great news! I found the modified d5600 both naked and full range. Here's the link... 

https://www.astroshop.eu/astromodified-dslrs/nikon-camera-dslr-d5600a-full-range/p,53134

I found a modified nikon d5600. The next step is to save some money... 

Thanks! Helpful indeed! The only thing I'm a bit worried about is to make myself the filter... If I had to dfo it myself, then I would be looking for a Baader BCF... Still don't know if someone modifies nikon cameras... 

I've been recently interested in deep sky astrophotography. I have a nikon D90. I tried to photograph comet NEOWISE yesterday. I got good results, except, the images were very noisy. So I'm now looking for a new DSLR, surely Canon, which makes low noise. Then I'll request someone modify it for capturing h-alpha. I've been deciding between the EOS 6Da,EOS 60Da and Ra. I decided by the 60Da as it was the cheapest, but it isn't anywhere for sell. I'm not sure if I will buy a EOS 60D and modify it, to be like the 60Da. ¿Is it a good idea? If not, ¿Any other good DSLRs? Thank you... 

I photographed the comet again. The tail was quite long, 15 degrees long. The comet was mag 3 or 4. Still a beautiful sight from my bortle scale 2 location.