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Sky Redness on winter afternoons

Why the skies turn red on the afternoons on winter season? Because in the afternoon the absorption of the blue light is more intense and the inclination between Earth and Sun rises on winters seasons. So the Red light has a larger wavelenght and is not so absorbed by the atmosphere. (I try made this txt in english with no IA help) Regards, Thiagolibe.

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Seestar Official Group

Seestar S50拍摄的照片上传后应出现的位置

为什么Seestar S50拍摄的照片（拍摄设备标记为 seestar s50）上传之后只出现在标签“Seestar”下，而在标签“全部”下见不到呢？如何解决？谢谢！

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Seestar Official Group

Starfront Observatory - S30 rental review

This is an honest review of the Seestar s30 rental now being offered by Starfront Observatory. Like many other UK stargazers I am frequently frustrated by constant cloudy nights and light polluted skies. I'd previously seen adverts for Starfront Observatory in Texas which offered to host people's telescopes under Bortle 2 skies and frequent cloudless nights. Not wishing to part with my scopes I was intrigued to see they've recently started offering to rent out their own seestar s30s for $99 a month. After a fourth week of endless cloudy nights, in late February I took the plunge and paid the initial $1 deposit. This grants you access to their support portal from which you can then request rental of a scope. Accessing the scope is really easy through the Seestar app and before long I was planning out whole nights worth of targets. You are obviously not guaranteed endless clear skies, and once a particular bad front passed I was seeing numerous successful shoots night after night. So much so I'd gone from having captured 40 messier targets and 16 Caldwell targets to having captured 109 messier (that elusive M30!) and 60 Caldwell within 2 months. Granted many of these were low on the horizon and weren't great quality - but I got them. The Seestar s30 provided is on an alt-az mount - so there is the potential for dropped subs due to field rotation on longer shooting sessions. As I was only accessing it through the app there was also no means of downloading all of the fit files and processing them yourself. This meant you're also restricted to some degree on the number of subs you're able to stack within the app. Starfront offer a status page where you can see whether the roofs are open or not and they also provide updates via their Discord server. Starfront Status Page Was it all plain sailing? Unfortunately not - the Telescope Network function within the Seestar app is still very new and at the time I was prone to countless disconnects and then being unable to reconnect, resulting in me having to log a ticket with Starfront to get them to reset the scope. Because of the 5 / 6hr time difference this sometimes took a while, especially at weekends. Since then this function has been massively improved with recent firmware updates and seems more reliable. The ZWO staff were also on holiday at the time for Chinese New Year so that didn't help with issues getting resolved quickly either. Starfront themselves are also very new to this process and are learning as they go - at one point the scope I was renting was given to someone else 9 days before my subscription ended and they promptly wiped all my data. Starfront profusely apologised and it does sound as though they've learnt some lessons from this misshap. Given those issues would I go back? Definitely - but I would plan ahead properly this time. I'd check the weather forecast in Texas and plan what targets I'd intend to shoot (for the first 10 days the roofs stayed closed due to them having sub-zero temperatures!). Being UK based we're not blessed with great weather and if they offered scopes on eq mounts with the ability to download all of your fit files I'd be back in a heartbeat. Below are just a couple of the pics i shot out there - all processed simply in the seestar app. All of the shots I took out there can be found in the Seestar app by searching for #StarfrontObservatory# (as mentioned above I'll readily admit that some of the shots of targets low on the horizon don't look great at all). For anyone else who is currently frustrated by the constant bad weather I'd strongly recommend giving it a go. It's really easy in this hobby to become disinterested or disheartened - being able to check my tablet each morning to see how the scope was getting on in Texas helped me keep that spark going. Check out Starfront Observatory here. If you do sign up for a subscription be aware you'll be signed up to a monthly rolling contract so will be automatically charged each month.

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ASIAIR Official Group

ASIAIR v2.5.2 has been released!

We’re excited to announce that v2.5.2 is now officially available on the App Store and Google Play! Thanks to all users who helped in the beta period. Especially the Admins and Testers.Optimized & FixedFixed occasional disconnections of the mount and guide camera（iOS & Android）Fixed export formatting issues in Plan mode（iOS）Fixed occasional crashes that occurred after successful auto-reconnection of third-party mounts（Android）NotesThis version distributed via Google Player only supports Android devices with ARM/ARM64 architecture and does not support x86/x86_64 devices. If your Android device uses an Intel or AMD processor—commonly found in certain tablets, 2-in-1s, or mini PCs—please download the compatible installer from the ZWO official website.

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Seestar Official Group

Measuring the Sun's rotation using Seestar S50

Measuring the Sun's rotation will help us better understand some fundamental principles of astronomical observation and unlock some of Seestar's capabilities. Of course, this exercise can be done with any type of telescope, as long as you take the necessary safety measures for solar observations. The complete procedure is described here

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Seestar Official Group

Do you have any problems when tracking the Sun or moon with the ZWO See star S50 ? See star seems a great smart telescope for deep space photography, but when tracking the Sun or moon it has always a bit stupid ! Even Infront of the sun or moon it still not recognise the target.

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Seestar Official Group

4K图像大小

我在用seestar s50以4K模式进行天体拍摄时，我发现不是所有的照片都是4K大小。拍摄有些星体时最终照片的大小比4K要小很多。请问这是为什么？谢谢。

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Seestar Official Group

How to make the Beehive Cluster Sing ?

Hello everyone , I bought a Seestar S30 Pro to help me build some characters for an upcoming music album. The creative workflow is quite simple . A- I take a photo of M44,the Beehive Cluster. Submit the photo to an AI for enhancing then I ask the AI to describe the image. From that description I co-author with the AI a song lyric. I then copy the lyrics in Suno, a music specific music tool... after many tries I get something I like. I call it Astro-Sonification. It implies that I am the conductor of a celestial orchestra. I am not just making a song about space; I am giving the space a way to speak (or sing). Here is an example of what I do. Please give me feedback and tell me wether or not this is the right place to talk about this. https://suno.com/s/Zeqfb7jxsgo1yW2x My Creative Spirit have the whole sky to explore ! Cheers, Stellia

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ASIAIR Official Group

Meridian Flip inconsistency: ASIAIR starts AutoCenter but mount not updated?

Hi,I would like to report a Meridian Flip issue that appears to be related to a mismatch between ASIAIR internal state and the actual mount state (pier side).SetupMount: Sky-Watcher (EQMOD)Control: ASIAIRGuiding: enabled (PHD2)Plate solving: enabled (AutoCenter ON)Meridian Flip settings:Stop tracking: 5 minutes before meridianFlip after meridian: 5 minutes after meridianObserved behaviorDuring an imaging session:ASIAIR correctly:stopped guidingstopped trackingentered Meridian Flip waiting phaseAfter the configured delay, ASIAIR:started Meridian Flipinitiated AutoCenter (plate solving + corrective slews)However:the mount did not appear to be in the correct post-flip geometryplate solving succeeded, but reported an initial offset of ~2.7°subsequent AutoCenter attempts increased the error instead of reducing it (up to 3.1°)This suggests that:the correction vectors were computed assuming a different pier side than the actual oneCritical failureBecause the correction direction was wrong:each AutoCenter correction moved the mount farther from the targetthe system continued trying to converge but diverged insteadWhen I attempted a manual recovery (GoTo to force flip):the mount slewed further in the wrong directioneventually reached the tripod legs (mechanical limit)Even a “Go Home” did not restore correct behavior immediately.Full recovery required:manual reposition to homerestart of the systemfresh initializationSupporting observations from logsBefore flip:PHD2 reports one pier side (e.g. West)During flip:ASIAIR behaves as if flip has occurred (AutoCenter active)After full manual reset:PHD2 reports opposite pier side (e.g. East)This strongly suggests that:the physical pier side change did not occur when ASIAIR assumed it didbut ASIAIR proceeded with post-flip logic anywayExpected behaviorAfter Meridian Flip trigger:Mount performs GOTO and confirms pier side changeOnly after that:AutoCenter should startcorrection vectors should converge (error decreasing)Actual behaviorAutoCenter starts even if mount state is inconsistentcorrection divergesno safeguard stops the processleads to potentially unsafe slewsPotential improvement suggestionsPier side validation before AutoCenterverify mount pier side changed before applying correctionsConvergence checkif error increases after N corrections → abort AutoCenterSafety limitdetect large divergence (>2–3° increasing) and stop slewingOptional debug infoexpose pier side and mount state during flip in logs/UINotesPlate solving itself worked correctlyIssue seems related to state synchronization, not solving accuracyBehavior is reproducible in principle if mount state becomes inconsistent near meridianIf needed, I can provide:full Autorun logsPHD2 logstimestamps of the flip sequenceThanks for your work on ASIAIR—this is a critical workflow area and I hope this report helps improve robustness and safety.

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Seestar Official Group