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Why isn’t the dumbbell nebula called the Apple-core nebula, just look at it.

😂😂😂😭This is a missed opportunity from whoever named it lol. I mean you can't look at it and tell me it doesn't at all resemble and applecore.🥀🥀🤣

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S.W.A.G. TEAM

BEAM ME DOWN DATA , Stuarts learning corner

Yes BEAM ME DOWN DATA is here again in the learning corner , MOSAICS ,dont be scared just 3 steps , and ive included a txt file which is in the heart file with the 3 steps plus ive taken images to show :) Going at light speed or its the space cabbage I forgot to combine image in fits of the heart but ive done it with the Tara just incase you dont have PI but if you want I can still do just say, I dont bite .. NOW SOUTHERN HEMISPHERE PEEPS You have 190 hrs of the Heart nebula HA OIII SII NORTHERN HEMISPHERE I give to you the Taratula nebula Just stacked no post edit Enjoy 🖖👽🫶 Oh i cant put a LA KNIGHT YEAH GIF :( in post :P

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I wish we could revise images!

I wish we could revise images on astroimg. Many times, I submit an image but continue tweaking it in Pixinsight. I like this cropping better and used some masks to try and reduce the highlights. But, I hate to repost, as it isn't really a new image, just a different version, I would rather just add a revised version. What do you guys think?

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学生党天爱聚集地

M45…（手机）

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S.W.A.G. Comics vol.1 - now on sale

The meeting between @HAL-9000 and @XRaySpex . An astrobar in the middle of nowhere, in a Bortle 1 area, the night is long and they are ready for it. Caldwells everywhere. Where to start? But first a beer ! What could go wrong? PS: don't shoot the storyteller / art director / makeup artist 🤭

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First Light with the Apertura CarbonStar 8" Ritchey-Chretien!

Hi All,Well, I finally got everything working last night! I still have some tweaking to do on collimation and have some spherical aberration. I think the aberration is related to me accidentally leaving an additional 5mm adapter ring on an not having the back focus set properly. Overall, it was fairly challenging, much related to the lack of documentation, i.e. approximate back focus from the back of the telescope, no documentation with the flattened or reducer, … The first night, I managed to find the focal point. I also figured out that I had the reducer in backwards and had to order a 1mm male to male M48 adapter. I also ordered several more adapters of various lengths. The second night, I thought I was ready to go but my collimation was awful. Yesterday, I spent about 4 hours working on the collimation with the Howie Glatter Laser Collimater and got it fairly close. I then did a little tweaking by focusing on a refocused star. I would say I am 95% of the way there.In honor of the September Challenge, I decided to do my “first light” image on the Bubble Nebula and got 3 1/2 hours with the Hii/Oiii filter and 3 1/2 hours with the Sii/Oiii filter.So, without further ado, I give you, “First Light”! It has also been posted as an official image on my profile Here .

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Spectrometric color what?....Part 2

Greetings friends! As I hide in @XRaySpex rubbish bin since landing in beautiful Brisbane, I have come across something interesting. Since my last post on Spectrometric Color Calibration I have been playing around with other filter settings. In my first post, I provided a data set to alter the SPCC to better align with the SeeStar S50 (SS) internal filter, as well as a preexisting filter in SPCC that is close. Now, I have noticed that there is a SS specific filter setting in SPCC. I have been using this as I process images, both my own and shared, over the past few days. Then I started playing around with the other filter sets and found some sublte but amazing differences. The following images are of partially processed Caldwell 92 kindly provided by our friend XRaySpex. To the best of my knowledge, this is a mosaic of 10 second subs with the internal filter engaged. So far in the process of each of the following images, all that has been done is:SCNRSmall Dynamic CropDynamic Background Extraction-DivisionDynamic Background Extraction-SubtractionBlurExterminator-Correct onlyFWHMEccentricity PSF measurment for BlurExterminatorFull BlurExterminatorFull NoiseExterminatorSetiAstro Statistical Stretch (Target Median 0.20, Curves 0.10)Resampled at 200%First is the SeeStar SPCC filter settingEverything is well defined. Lots of detail. Good transition between colors. The faint nebulosity at the top is easily seen.Next is L Enhance ExtremeI think the colors are a bit more vibrant, a little more definition between the gradients, and the dark areas are more pronounced. The nebulosity at the top is not as defined as the SeeStar in my opinion, but has a richer color.Next is the L Enhance UltimateNebulosity at the top to me appears a bit bolder and richer in color than the Extreme. Overall, the nebula core seems a bit muted, but good contrast between dark structures. This filter option may be useful when dealing with other targets with lots of dark structures or perhaps reflection nebulaeNext we have the BaaderUHC-SI feel this one has good balance overall. Brights are bright, darks are dark, colors are rich and balanced. This filter preset may be a good starting point for post processing using color masks, curves, NarrowBandNormilization and so on.And finally we have the Antila TribandAnother rich starting point for post processing. In closing, the SeesStar specific filter set does a good job, but don't let that limit you. Don't be afraid to try different things. Experiment with different filter settings on different objects. This is just one example. Other deep sky objects with different filter pre-sets may yield striking results!As always, Per Aspera, Ad Astra my friends!

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If someone wonders how SWAG team looks like ….

Here is a family photo, you are welcome !

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who has astrobin ?.................?

I know a few of you do, as I follow you , but if i dont follow you , add you handle so I can follow you on Astrobin , as deleting everything and re starting my profile with folders etc. And yeah making it look more professional. Plus what do people think of this badge/sticker , its for one of my projects

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Final Caldwell dump - For a little while

Last Caldwell dump for a few weeks (because I don't have them). C98, 103, 104, 105, 106, 107 & 108. Hoping to get a few of the other Southern ones soon as they aren't in the best position ATM. All stacked in Fits and xisf format.If anyone can fill any of the other Caldwell requests please see the spreadsheet.For some reason 47 Tuc was a pain to stack and you may find it hard to image solve. Don't know why but it's always been a problem. C103 is included in a mosaic file.EnjoyXRay

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