Phd2 guiding accuracy. • Guiding interval is preferable to 1.

Phd2 guiding accuracy Total weight was under 10-11kg on the optical side, ex bar and counterweight. This display is also used to select a guide star by simply clicking on it. I have tried PhD2 as well and experience very similar results. Nowadays I'd use multi star instead of single star but other than that, nothing further. You can I’ll bet that practically everyone who uses PHD2 for guiding has used the Guiding Assistant. So I just assembled my new SkyGuider Pro with my existing Asiair Pro together with some helpful addons like the WO items, a smooth DEC rotation plate, my 1:10 finefocus tool for By using a guide camera and a guiding software such as PHD2, one can send commands to their equatorial mount to help produce consistently round stars and sharp details. The drift align tool in PHD2 can be used to quickly obtain a precise polar alignment of your equatorial mount. To make a 0. 5 arc-second correction, PHD2 would need to send a pulse that is 7. However, an attempt to image Bodes Galaxy resulted in PHD2 warning of guiding near the pole. Before you can start guiding, you need to make sure that your settings are correct and calibrate properly. Check while you're at it (using the "brain" in PhD2) that you input the *pixel size* for the guide camera correctly, and the proper guide rate for your mount. Our computer can communicate with the telescope mount using autoguiding software such as PHD2 Guiding. I have recently tried to get Guiding working with PHD2, but without success. My main imaging scale will be roughly 2. PHD2 is pretty good at measuring this stuff. I have to say that I never noticed any advantage the PHD had over the SKYX for guiding. This first session has been a bit frustrating , since I didn't manage to achieve acceptable guiding calibration. 0. to communicate with PHD2 and command operations such as dithering and for receiving guiding telemetry, PHD2's internal server must be enabled. 3 arcseconds/pixel. But Im not confident with what is considered good and very good And at any rate, PHD2 Guiding can guide on sub-pixel accuracy. You should definitely adjust the slider control so you can see even the faintest stars in the field. The process takes a little bit of practice, but after doing it a few times, you should be able to obtain an accurate polar alignment in minutes. Most guiding software such as PHD2 or Maxim DL can handle stars that are not perfectly round. This is used to avoid PHD2 is a widely used piece of guiding software that helps smooth out the inherent error in your mounts tracking ability. The "scatter graph" shows the same information. Download v2. December 21, 2019 - PHD2 Best Practices. 5 = 67ms in duration. April 26, 2018 - Polar Alignment tool video tutorials. Multi-star guiding will be much more accurate than single star guiding. HEM27 harmonic drive period = 360s (I measured 54’ P2P PE) AM5 harmonic drive period = 432s (spec is 40 or less peak to peak PE) So it seems to me that the AM5 has an advantage for smaller For example, if PHD2 determines that a 0. Boy was I wrong. The vast majority of PHD2 guiding issues are caused by one of the three following things: A guiding accuracy can be less than 0. 30 arc-sec of total RMS error, and seldom does it go over 0. What it essentially does is monitors one or more stars in the sky and sends periodic corrections to your All you need to do is check the box as shown in the tab. N. 4 arc-sec. I should correct myself and say, all this I used to do. But let me continue. December 7, 2019 - macOS Catalina. alignment with PHD2 can be extremely accurate, and that it can be done without necessarily having line of sight on polaris. N. I have taken it out a few nights (winter weather permitting) and used it to help guide some astrophotography after the proper polar alignment steps. The major part of it tends to “march through” the program more than this book does, though. Dump NINA TPPA. While it is rather easy to describe what a separate guide PHD2 Guiding (Updated 2024) Reggie Jones. Copied to clipboard. What RMS should I be happy with? Over the course of 30 minutes the RMS was PHD2 is guiding software inspired by Stark Labs PHD Guiding. The initial set up is using the guide camera for polar alignment prior to guiding and its polar accuracy is claimed to be down to seconds of arc. I tested the performance of the HEM44EC for imaging on a dozen occasions with a total of 78 hours of guiding using PHD2 software. Unless you already have experience with guiding and understand its principles, you should be somewhat cautious about changing algorithms. Well, I usually set the guiding cadence to be 4 seconds minimum but I had dark skies where the mount was set up. 4 - 0. 8 arc min, its probably accurate. I found some information online that might help you determine just how accurate you need to be. has been great. Check while you're at it (using the "brain" in PhD2) that you input the *pixel size* for the guide camera correctly, and the proper guide rate for These are probably your best estimators of guiding performance because they can be directly compared to star sizes and seeing conditions. To enhance pointing accuracy, especially important for post-meridian flip, star-sync your telescope with the Sun or your chosen planetary body while it's centered in the main scope's field of view. 8 arcseconds). They may be trying to identify and fix In PHD2, the various guide algorithms can be applied to either the right ascension or declination axes. 1) The guiding graphs are very spiky - much more than I've seen on example pages! In both axes, I seem to be getting an average of +/- 3-4" accuracy, going up to about 8" on occasions. It is After nearly two months of testing, I think I have developed a "feel" for guiding the CEM120EC2 with PHD2. How to use PHD2 Drift Alignment. You can access the help file from the And we are now ready to dive deep into the technical factors which affect the guiding accuracy and the shape of the stars. PHD2 Drift Alignment Tool The drift align tool in PHD2 can be used to quickly obtain a precise polar alignment of your equatorial mount. From everything being set up inside, to getting everything setup outside, aligned, and imaging now takes 20 - 30min total. I know Before adjusting the settings in PHD2 Guiding, it is important to make sure that your equipment is prepared for imaging. provides the same tracking accuracy and status information for MetaGuide that it does for PHD2 as well as some additional information specific to MetaGuide. I. View online: HTML Advanced Settings Advanced settings are accessed by clicking on the 'Brain button' in the main display. This alignment technique does not PHD2 RMS value, what qualifies as "good" guiding? - posted in Beginning Deep Sky Imaging: Second time guiding last night and not sure what I should be looking for in the numerous statistics PHD2 is showing me. This includes accurate Polar Alignment and balancing the weight of your payload. 77 arcsec with the payload shown If you find you have to recalibrate with changes in Dec with PHD2 then you are either guiding via an ST-4 style cable, or there is some other root cause you need to be looking for. If it says it's 3. Both have their place. The autoguiding software (PHD2 Guiding) can automatically select the best star to use for autoguiding purposes. I dont think I'm willing to go back to a laptop. 5 arc-seconds per second. As bobz commented, there is a huge tendancy to obsess over polar alignment and guiding accuracy. PHD2 has a large set of parameters that can be adjusted to optimize your guiding experience. Yet another post on PHD2 guiding assistant and calibration help. 5/0. Accuracy wise, the platesolving, guiding, imaging, etc. With this checked, you will not need to do another calibration as YMMV of course. Home; Learn More; News; Changelog; Download; Documentation; Getting Help; About; PHD2 v2. 11) software. Because I’m Australian, the methods described here are particularly sympathetic to those of us who can’t see, or don’t have a pole star like Polaris. 7 arcseconds/pixel. This is helpful as a “look it up” resource, but perhaps not as helpful as an “applied” resource, as this book tries to be. 13 for Windows Improved detection of low-SNR stars by more accurate background calculation; PHD2 now checks for PHD2 updates; AO: better stability when large I just haven't messed with it. In my tests, the autoguiding tool within the ZWO ASIair had no trouble using the guide stars it found with the 290mm Mini in My ZWO AM5 demonstrates a tracking accuracy ranging from 0. Below, is a screenshot of the autoguiding software in action. I would think with the focal length of a RC51, you have quite a bit of freedom from a high demand for accuracy like someone with a 2000mm or 2400mm SCT. Finding focus in bright light is challenging—it requires being able to see the computer display and reach the focusing knob. The guiding accuracy of the HEM44EC maintained a weighted average RMS of 0. A. I will also provide methods to quickly cross check whether each factor is the cause, and how to fix it if it’s the case. All you need to do is check the box as shown in the tab. Gain increases the multipliers the camera processor uses. News; Changelog; Download; Documentation; Getting Help; About; Documentation. It has nothing to do with the shape of the star, its location on the sensor, its Even at star parties, experienced users can be thrown off by a new location and suddenly need to relearn the art of accurate polar alignment. Some cameras have controls that can find a happy medium in December 22, 2023 - PHD2 v2. PHD2 is guiding software inspired by Stark Labs PHD Guiding. You can see a visual representation of the telescope PHD2 Guiding. 25 for DEC Internally, PHD2 operates on the raw, un-adjusted data in order to maximize guiding accuracy. those of you who have an obstructed view, or live near the equator, aligning with PHD2 is a free, easy way to achieve very If you are not using ASCOM Pulse Guiding, it may never be accurate, regardless, since it's PHD2 is guiding software inspired by Stark Labs PHD Guiding. The algorithm applies the basic principle that the accuracy of centroid calculation - the fundamental calculation of where a star is located on the sensor - is proportional to that star's SNR. 5 to 0. Here are my results and opinion vs ZWO AM5. Also make sure Auto restore calibration is checked in the Guiding tab. 5 arcsecs (usually between 0. So my big concern right now is that when using PHD2, whether using the static polar alignment, polar drift alignment, or drift alignment, I am going to move the the azimuth and altitude setting of the mount, which I opted for the EC variant, which includes the polar scope and high accuracy encoders, a $1300 option. If you are guiding at 0. 1 arc-seconds and aggressiveness parameters fairly middle of the road so I am correcting around half of the measured deviation. This is a benefit, in that it means you can dial in an accurate polar alignment without having to rely on the pointing accuracy of your mount (which may be limited to 1-2’). PHD2 is a fantastic piece of guiding software and is pretty easy to use once you have it set up correctly. • Guiding interval is preferable to 1. I havent used it, but I know itll at least get you decently polar aligned. This is a lengthy video describing how you can use a tool built into the telescope guiding program PHD2 to get you accurately polar aligned without being able to see the star Polaris. 0 – 1. Running for extended periods of time unguided causes the PPEC model to lose accuracy, in which case a reset Setting the proper guiding camera gain and exposure times was crucial before starting PHD2 calibration with the planetary guiding module; for me, this was 5 msec and a gain of 35. You can run it 3 times and get 3 different results. This makes the stars brighter, but it introduces noise. Although these are called "advanced" settings, they are not particularly difficult to understand, and there may be situations when you need to modify them. . The default guiding algorithms in PHD2 are well-established and should work well for most users. Make sure that you redo calibration (pick a star near meridian and equator if you're using pulse (ASCOM) guiding for your mount). This isn’t a problem for phd2, correct? Just wanted to make sure before I bought the guide PHD2 or any guiding software is often the messenger of bad news because of the incredible level of accuracy required for guiding. For. Most declination drift can be well-managed by PHD2 guiding assuming the mount behaves well and doesn’t have a lot of declination backlash. Actually, exceeds my expectations. This synchronization helps in minimizing errors and adjustment times after the meridian flip. Unfortunately, specific information regarding the periodic errors of iOptron’s harmonic drive mounts while guiding in real-world conditions remains my experiance guiding with skyguider pro - posted in Beginning Deep Sky Imaging: So as the title states, last night I had enough clear skies to try and PA and guide with my new guide scope setup. Page 1 of 2 - iOptron HEM27 - first guiding results - posted in Mounts: Had first light with an iOptron HEM27 last night. So, use the binning options if available in your camera, but don’t go to more than 6 arc seconds per pixel. Guiding Image Scale - posted in Beginning Deep Sky Imaging: I’m about to dive into guiding and wanted to validate something. In repeated attempts, it stops guiding after only a few minutes. Page 1 of 4 - PHD2 and Polar Align Requirements ? - posted in Beginning Deep Sky Imaging: Hello Starwatchers. Improving the Guiding Performance • Be systematic and methodical when trying to improve performance – Don’t thrash the guiding parameters! – Experiment only on a night of average Analyzing PHD2 Guiding Results – A Basic Tutorial Introduction At some point, most imagers want to analyze the guiding performance they’re getting. Now I use asiair units 240mm /50mm guiding scope; PHD2 with a QHYCCD guiding camera , both of them having been running perfectly on another mount. My probable guiding scale will be about 3. PHD2 Calibration: With a The key benefit of polar aligning with PHD2 is it requires only the adjustment of your altitude and azimuth adjustment knobs or bolts. In our tests, we used PHD2 (v2. Typical PHD2 guiding configuration. What we recommend: • A multi-star guiding is preferable. Running for extended periods of time unguided causes the PPEC model to lose accuracy, in which case a reset PHD2 and the Celestial Pole - posted in Beginning Deep Sky Imaging: Experiencing fantastic tracking accuracy with my permanent observatory setup. June 12, 2016 - PHD2_Broker package available Using PHD2 Guiding There are five basic steps to start guiding. Remember, drift alignment is very accurate so it stands to reason that at some point, tiny changes will have to be made to achieve that precision. Pay the 10 bucks I’ll bet that practically everyone who uses PHD2 for guiding has used the Guiding Assistant. PHD2 comes with a built-in help file, which is an excellent way to get started with PHD2. Basic control Near the bottom of the screen are the main controls. With Replied by JethroXP on topic M-Due guiding accuracy with PHD2 How do I set the AutoGuide Speed for the M-due? For my EdgeHD 8" I should be using 0. Im imaging with a FL of 510mm, the guide scope is 280mm. The guiding in ASIAir seems to be a copy of PHD2, so it's straight forward. 5 seconds. 15 sidereal for RA and 0. 8 arcseconds across imaging nights, when guiding at 1-second intervals with a quadruplet apo refractor at 600mm focal length. Im able to get around 6 minutes guiding Page 1 of 3 - Imaging vs. 5x, that translates into 7. 13 for Windows. I am using multi-star guiding with the Predictive PEC guiding algorithm with guiding exposure set to 1s, min-move set to 0. 13 macOS Sonoma+ Download v2. Calibration and Guiding. Darks help reduce noise and increase accuracy of star centroid calculations. So I read everything that I could and watched all videos that I can and felt confident enough to do it. Help. A Bad Pixel Map prevents PHD2 from trying to calibrate or guide on What are good PHD2 Accuracy Goals? - posted in Beginning Deep Sky Imaging: Ive just started using PHD2 and its taken sometime to get comfortable with it. Most of these algorithms include a minimum move parameter. 5 arc-second move is needed to the north, it calculates the pulse length needed based on the guide rate. I routinely get ~ 0. In order for N. I have sharpcap, PHD2, and How accurate does polar alignment need to be for guiding? - posted in Beginning Deep Sky Imaging: Im getting a CGEM, which has All-Star Polar Alignment built in. 13. At a minimum, it will make recommendations for tweaking the settings for its guiding algorithms, but it can also tell you quite a bit about your polar alignment accuracy, how your mount is performing, and general seeing conditions. Its probably not enough to do unguided imaging with an 800mm reflector, but Im also getting an autoguider (probably the Orion The PHD2 Guiding documentation is really very good. Modern guide cameras are capable of measuring movement on scales of just a few microns - as a The importance of alignment accuracy is often over-emphasized, so users need to keep things in perspective. Hi Peter, impressed by your tutorials and videos I decided to restart my astrophotography with a light but powerful setup instead of finishing this nice hobby with my age of 71. PHD2 Guiding is the successor to PHD Guiding, which I used for several years before upgrading to PHD2. It sucks. 13 Released. Im not getting any faster. Christian, just a couple tips for you. Use the Guiding Assistant tool in PHD2 to work out out your PHD2 settings. Share. An autoguiding configuration can dramatically improve the tracking accuracy of your existing equatorial telescope mount. I have a Skywatcher AZEQ5 Page 1 of 2 - Polar Alignment with PHD2 - posted in Beginning Deep Sky Imaging: Polar Alignment took me 2 hours yesterday. At a minimum, it will make recommendations for tweaking the settings for its guiding algorithms, but it can also tell you quite a Page 1 of 2 - PHD2 guiding assistant and calibration help/advice - posted in Beginning Deep Sky Imaging: Yes, I know. 6. PHD2 is free of cost, open source, and community-developed and supported. although in my case it's not made a whole lot of difference in guiding accuracy. Download PDF: English Italiano. While it can provide accurate results, an off-axis guider (OAG) is the ultimate way to guide your astroimaging rig. tsnuiccz nyd vikwla thcdj ehormds mclhl jcs ovttb xulo fio ddntyhj mxuke bcgh nyg camezv