-Amenophis-

New version Note : Carbon star on top of the left picture..... Very red star IRAS 21064 + 7749

Thank you Mark I have a lot of trouble processing this image and I still managed to get something that is 100% satisfied

Hello, This nebular region in Cepheus sits just over 11 degrees from Polaris, and largely consists of a diffuse dark nebula and bright nebula cataloged by Beverly T. Lynds in 1965 as LDN 1228 and LBN 552, respectively. Near the center of the image sits a unique orange reflection nebula, cataloged both as GN 21.00.4 and Cohen 129, which appears as a hill popping from the dimmer diffuse nebula region. This frame shows only part of the LBN 552 and LDN 1228 structures, which cover a much larger area and themselves are part of an even larger system of clouds in this area of the Milky Way. Thank you very much Credit : Thomas LELU Newton ASA 10’' Paramount MyT CCD Moravian G2-4000 Astrodon Luminance : 15h55 Astrodon Green : 2h Astrodon Red : 2h Astrodon Blue : 2h Total exposure : 21h55 FRANCE - Lorraine www.astrophotographie-lorraine.com

Beautiful ! Very great job

Thank you very much for your reply Please see a new version with less noise reduction regarding background :

Spring is coming and galaxies are coming along too. After more than a year without imaging, I have the pleasure to present you the Lion Triplet with my new material. The Leo Triplet, or the M66 Group, is a group of interacting spiral galaxies located in the northern constellation Leo. The group consists of the galaxies Messier 65, Messier 66 and NGC 3628, also known as the Hamburger Galaxy. The Leo Triplet lies at an approximate distance of 35 million light years from Earth. The three large spiral galaxies can be seen in a single field of view and are well viewed even in small telescopes. Their galactic disks are tilted at different angles when seen from Earth. NGC 3628 appears edge-on, while M65 and M66 are inclined enough to reveal their spiral arms.The three galaxies in the M66 Group have all been affected by gravitational interactions with each other. This is evident in the deformed, drawn out spiral arms of M66 that are experiencing a high rate of star forming activity and in the warped, inflated disk of NGC 3628. With a prominent tidal tail consisting mainly of young blue stars, NGC 3628 seems to be the most affected of the three, while M65 appears to have suffered the least damage from the interaction. The tidal tail of NGC 3628 spans over 300,000 light years, but is very faint and does not always appear in images of the galaxy. ASA10’' Paramount MyT Moravian G2-4000 Autoguiding with AOG and Moravian G1-0300 AStrodon Blue filter : 53x180s Astrodon Green filter : 53x180s Astrodon Red filter : 53x180s Astrodon Luminance filter : 53x180s Total exposure : 13h Location : Lorraine - FRANCE

According to ASA, it seems that the steps size are 5 um. On the other hand, with 5um, I feel that with software @ Focus3 Software Bisque, it works not too well ....

Hello, I search the step size in micronmeter (x um/step) for AAF3 focuser. I have difficult ton find this information. Thank you in advance for your repply

Hello, I would like know the Resolution per step (in µm) of AAF3 focuser. I would like used @Focus3 of TheSkyX and this parameters is not available. Thank you in advanced. Thomas

Merci Bernard Problem resolved

Hello, I currently have a problem connecting the AAF3 focuser. After installation, I get this error message when opening the software and I can not use it: Windows 10 .NET framework : v4.0 With details : Consultez la fin de ce message pour plus de détails sur l'appel du débogage juste-à-temps (JIT) à la place de cette boîte de dialogue. ************** Texte de l'exception ************** System.InvalidCastException: La conversion de la chaîne "1.23" en type 'Double' n'est pas valide. ---> System.FormatException: Le format de la chaîne d'entrée est incorrect. à Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat) à Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat) --- Fin de la trace de la pile d'exception interne --- à Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat) à Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value) à ACC.Allgemein.IsEnglish() à ACC.frmMain.frmMain_Load(Object sender, EventArgs e) à System.Windows.Forms.Form.OnLoad(EventArgs e) à System.Windows.Forms.Form.OnCreateControl() à System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) à System.Windows.Forms.Control.CreateControl() à System.Windows.Forms.Control.WmShowWindow(Message& m) à System.Windows.Forms.Control.WndProc(Message& m) à System.Windows.Forms.ScrollableControl.WndProc(Message& m) à System.Windows.Forms.ContainerControl.WndProc(Message& m) à System.Windows.Forms.Form.WmShowWindow(Message& m) à System.Windows.Forms.Form.WndProc(Message& m) à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) à System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ************** Assemblys chargés ************** mscorlib Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll ---------------------------------------- ASCOM.Utilities Version de l'assembly : 6.0.0.0 Version Win32 : 6.2.0.2774 CodeBase : file:///C:/Windows/assembly/GAC_MSIL/ASCOM.Utilities/6.0.0.0__565de7938946fba7/ASCOM.Utilities.dll ---------------------------------------- System Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Core Version de l'assembly : 3.5.0.0 Version Win32 : 3.5.30729.8833 built by: WinRelRS3 CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System.Core/3.5.0.0__b77a5c561934e089/System.Core.dll ---------------------------------------- Microsoft.VisualBasic Version de l'assembly : 8.0.0.0 Version Win32 : 8.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll ---------------------------------------- System.Xml Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- ACC Version de l'assembly : 0.0.2.0 Version Win32 : 0.0.2.0 CodeBase : file:///C:/Program%20Files%20(x86)/ACC/ACC.DLL ---------------------------------------- System.Drawing Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- System.Windows.Forms Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- ACCDriver Version de l'assembly : 0.0.2.0 Version Win32 : 0.0.2.0 CodeBase : file:///C:/Program%20Files%20(x86)/ACC/ACCDriver.DLL ---------------------------------------- mscorlib.resources Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll ---------------------------------------- Microsoft.VisualBasic.resources Version de l'assembly : 8.0.0.0 Version Win32 : 8.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic.resources/8.0.0.0_fr_b03f5f7f11d50a3a/Microsoft.VisualBasic.resources.dll ---------------------------------------- System.Windows.Forms.resources Version de l'assembly : 2.0.0.0 Version Win32 : 2.0.50727.8825 (WinRelRS3.050727-8800) CodeBase : file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms.resources/2.0.0.0_fr_b77a5c561934e089/System.Windows.Forms.resources.dll ---------------------------------------- ************** Débogage JIT ************** Pour activer le débogage juste-à-temps (JIT), le fichier de configuration pour cette application ou cet ordinateur (machine.config) doit avoir la valeur jitDebugging définie dans la section system.windows.forms. L'application doit également être compilée avec le débogage activé. Par exemple : <configuration> <system.windows.forms jitDebugging="true" /> </configuration> Lorsque le débogage juste-à-temps est activé, les exceptions non gérées seront envoyées au débogueur JIT inscrit sur l'ordinateur plutôt que d'être gérées par cette boîte de dialogue. Thank you for your help

Hello, I noticed some weird egrets on a big star at the edge of the field. I am shocked by the horizontal egret on the star. While on all other stars it does not appear : Thank you for your help

Hello, So, Please find my test image. I tried to adjust the collimation as best as possible with the option "real time" and then I took a break of 20s BIN1x1. Technical specifications include: - Newton 254/1000 - Paramount MyT - ASA 0.73x corrector - Moravian G2-4000 - Image scale: 2,032 - Focal: 751.12 - RA 15 04 05.392 - DEC +26 48 25.53 The goal for the moment is to find the correct distance of the backfocus for the corrector. The TILT will be the next step. For Downloading Image .fit : http://Link to Download image .fit This is the field : With the four corners and the center of the image to see the appearance of the stars : Zoom on the center of the image : With CCDInspector : It is true that there is a lot of Tilt but this will correct later. Here are the questions: 1 °) So what do you think of these results regarding my bacfocus for the corrector? 2) Is the accuracy of the collimation sufficient? 3 °) In "settings"> Collimation screw direction> Clock-wise = pull is selected. I can not understand. In particular with the following image : Thank you very much in advance for your help

Thank you How do you check that? (the good distance for Backfocus) Do you use software like CCDInspector to see if the distance is good? (see coma)

thank you mark ! Just to be sure : Backfocus CCD moravian and filter wheel : 33,5mm Connected rings : 15mm AOG : 15 mm Filter astrodon : - 1mm So : (33,5 + 15 + 15 - 1) = 62,5 mm In conclusion, add 3mm extension rings to obtain 65,5mm

Sorry, but my focal length is 1000mm (Newtonian 254/1000 FD4). So i calculate 65,5mm is that correct ? Thank you

Thank you very much for your help

Edit : more information about telescope 254mm diameter Focal lenght : 766.94mm with ASA reducteur (astrometry) FD 3

Hello, I own the ASA 2" reducer 0.73 and I can not find the right measure for the BackFocus. Here is my equipment: Newton telescope : focal 766.94mm I tried with the table in the documentation of the correction but I can not be the measure precisely. Thank you in advance for your help. Have a good day