Keith Bramley

Yes it did the conversion in AstroimageJ, I had a bit of time to run through the processing again, I think it was down to the transit fit parameters, this time it matched up must closer.

Hmm I’ll check that, the BJD (TDB) predictions I got from the tool provided by Astro.swarthmore.edu/transits/ which gets it from the NASA Exoplanet archive I believe. Might be just the error margin is large in my data. I’m fairly new to this so I suspect user error somewhere 😬

exoplanetarchive.ipac.caltech.edu/cgi-bin/Disp... for more info on this exoplanet by the pros

Plot of a transit of an exoplanet in front of its star showing the dip in light

Tonights transit is WASP-10b, got the full data set now, pleased again with this, lines up well with predictions, slighty deeper transit depth at 31ppt instead of 25ppt, but the timing and duration are bob on almost. Imaged from my backyard :) #astronomy #exoplanet

progressing nicely :)

plot showing the light dip of a star due to a planet passing in front of it.

Something very satisfying watching tha data roll in live of the transit of an Exoplanet in front of its star. This is WASP-10b, a Jupiter sized planet, the transit takes about 2h14m and should be 2.5% in depth. The data is close to the prediction shown by the red lines :) #exoplanet #astronomy

Thank you for the link, I’ll take a look.

and here it is :) bsky.app/profile/keef...

For more info on this transit find it here here exoplanetarchive.ipac.caltech.edu/overview/Qat... data processed in AstroImageJ. Scope 190MN camera ZWO ASI 2600MM

A plot showing the drop in light flux from a Star when a planet transits across its face, in this case it is apporx 3% dip

I tried a slightly harder target, this is the transit of Qatar-9b. This is 700 light years away, its star is a Mag 14 K5V about 0.7x the diameter of the Sun. The planet is Jupiter sized and took about 2 hours to transit. The transit depth was only 3% this time. #exoplanet #astronomy

I must admit I didn't expect to succeed, I had another go on Qatar 9b later on, this had a light dip of 2.7% over 2 hours but the host star is brighter at Mag 14, processing the results today to see how far I can push this. Lots of fun indeed :)

Processing done in the incredible free software AstroImageJ, a total of 190 images taken with 60sec exposure and gain 100. Analysis of the transit shows the planet is about the size of Jupiter based on the size of the Star which is about 0.5 the size of the Sun.

Tonight I decided to try something new. I managed to detect Exoplanet TOI 3714b transiting its host star using my 190MN scope and 2600MM camera. Totally blown away that this is possble from my back yard here in the UK. Transit took 1H 38mins and was about 5% in depth 🤯. #Astrophotography #exoplanet

I laughed out loud watching this last night 😂

Marvellous image

I’m on a free trial so trying it out on a few different data sets. I’m very impressed, it works wonders on edge of field stars where I tend to suffer from abberations.

Interesting question, generally the darker nebulosity that is back lit is in front of the ionisation sources and brighter nebulosity. The stars most likely have Gaia data available which would allow you to determine their distances too. I have seen stereograms made but not sure how accurate they are

That’s an excellent image of Mel-15 too, I do like the colours. There is so much interesting nebulosity all around the Heart and Soul nebula region.

Yes I ran BlurXterminator on the starless image and on the stars only image before stretching.

Had a go processing some of my older narrowband data in Pixinsight of Melotte 15 in the Heart Nebula. I feel this is a better result this time, more finer structure and better stars. This was 18 hours data with Ha, SII and OIII using Atik 383L+ and 190MN #astrophotography

Excellent shot Mike

Its raining again so here is an image from earier this year. M81 and M82 galaxies. 6 Hrs Lum and 2 hrs total R,G,B using 190MN and ZWO 2600MM. 100% crop of each galaxy and the full image rescaled. This is another Pixinsight re-process, still learning but very happy with this :) #astrophotography

Wow look at those colours, great job.

Re-processed my M106 image with Pixinsight, wish I had taken the leap earlier to PI, much improved, although had to crop a portion to avoid poorly calibrated frames. This is a LRGB image, total of 19 hours exposure with 190MN and ZWO 2600MM camera, click left image for 100% crop #astrophotography

Here is my SH2-125 The Cocoon Nebula, imaged in HaLRGB. Total of 3 hours each R,G,B 3 hours Lum and 3 hours Ha. Imaged with a 190MN and ZWO 2600MM camera. This is my first try at using Pixinsight, so far I'm super impressed :) full resized and 100% crop image #astrophotography

After an extended summer break from Astrophotography I am back in the saddle and capturing photons again. Amazingly everything fired up first time, although many critters have been evicted. Tonight’s target is SH2-125 The Cocoon Nebula, might take a couple of nights.

The NGC 4631 Group is a poorly defined group of galaxies, about 25 million light-years from Earth in the Coma Berenices and Canes Venatici constellations. The NGC 4631 Group is one of many that lie within the Virgo Supercluster

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici about 30 million light years away from Earth. It was discovered on 20 March 1787 by German-British astronomer William Herschel. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, hence its nickname. Because this nearby galaxy is seen edge-on from Earth, professional astronomers observe this galaxy to better understand the gas and stars located outside the plane of the galaxy

NGC 4656/57 is a highly warped edge-on barred spiral galaxy located in the local universe 30 million light years away from Earth in the constellation Canes Venatici. This galaxy is sometimes called the Hockey Stick Galaxy or the Crowbar Galaxy. Its unusual shape is thought to be due to an interaction between NGC 4656, NGC 4631, and NGC 4627

After a decent haul of clear nights here is some new images. This is my NGC 4631 The Whale Galaxy and its buddy NGC 4656 The Hockey Stick Galaxy. With crops of each at full resolution. A total of 10 hours using LRGB filters with my 190MN scope and ZWO 2600MM camera. #astrophotography #galaxy 🔭

Thank you ☺️ Wow bortle 1 is pretty wild, I would expect the full Moon may have less impact especially if well off axis. Would be interested to see the results, I imagine gradient will be the challenge.

It’s a great target, I first saw it through the eyepiece 20 years ago in my little 6” Newt, then it was just a fuzzy blob, but I found it by hand and I was chuffed ☺️

Do you let the Seestar do all the processing or do you do it in separate software.