Recently Browsing 0 members
No registered users viewing this page.
Hi guys, hoping you can help with the tracking problems I'm coming across with my astrophotography setup. I've been using it since August 2020 and have kind of put up with the problem until last night where I think it's getting worse...
Specs below (let me know if you need anything else):
William Optics Zenithstar 61 II (360mm F6.1) - Zenithstar 61Adjustable Field Flattener iOptron SkyGuider Pro Camera Mount Full Package K&F Concept Aluminium Tripod with 2kg weight Canon EOS 250d (cropped sensor 1.6x) The problem:
I take roughly 40 pics with each being 1 minute long at 1600 ISO and stack them on DeepSkyStacker. From a few people I know on the internet, it seems as though, with a very similar setup and same focal length, they can get around 3 mins of exposure with no problem. And that's without a guide camera.
With my 1 minute exposure, roughly 10 of 40 images are reasonable but the rest have star trailing or double stars (see attached downscaled, unedited pics of Orion nebula)
What I think it could be:
My first idea was the tripod, it's not the best but it's not cheap plastic, and it should be fine for a 1 min exposure. Then I thought it could be the iOptron tracker that could be faulty?
Every screw has been tightened, there's no play in any of the adapters/mounts.
I thought I'd post this here to see if anyone else has the same problem or has more experience/knowledge that could help. Also to see if there's an obvious problem before I spend hundreds on a new tripod or send the tracker back for a replacement.
Any help would be much appreciated!
After impulse buying this 80mm refractor a year ago, being very underwhelmed and returning it, I've stepped back and done a lot of researching of scopes & astronomy (mainly online due to Covid19). Now that I have a little better perspective on things I'm looking to get my first "real" scope and would welcome some advice. A lot of things I read and seen seem to suggest an 8" DOB being a good beginner scope one can grow into, without breaking the bank. Thus I'm leaning towards the Apertura AD8 with a Barlow & maybe additional lenses down the road, but again I welcome any advice or confirmation that this is a good first scope for me and my family?
Other details worth mentioning:
Price - A definite factor as I have no idea how hooked I or my family will become with the hobby. Last thing I want is an expensive dust collector sitting in the corner of the room. Definitely under $1k, preferably closer to half. If we end up loving it and I trade up, so be it... Interests - Planets and definitely faint & DSO's for sure (so I think that rules out low cost refactors?) Aperture - I know this is the most important aspect and people tend to suggest "Go bigger", 10", 12"+, and I understand the trade offs, but have no practical experience yet, so this is a difficult decision. Price, portability & light gathering are all considered here and why I feel the 8" is probably a good first scope size? (feel free to weigh in here) Location - I mainly see this being used in our backyard, which thankfully is pretty private & dark but we do live in the suburbs and there are stairs to consider. Maybe we'll take it camping or drive to a secluded rural spot once in a while, who knows... Size - Similar to aperture giving more light, I read that 10"and above start to become heavy & unwieldy. I'm no weakling but my wife and kids may want to use this too and the backyard is down stairs off our deck, so factoring this in.... Astrophotography - Probably not yet... My wife's a photo nut and has a couple nice DSLR's already. However, this seems like an expensive & time consuming rabbit hole, plus I would think you'd need auto-tracking mounts. Things could change down the road but for now it's not something I'm really factoring in. One can always google celestial pics right? Manual vs. motorized - I really don't know. I've read the pros & cons, people seem to be on one side or the other, and again astrophotography isn't a big factor at this time, so probably manual.... I was somewhat considering NexStar 6SE as it's barely under $1k, but thinking a 6" will limit DSO capabilities? The 8SE seems nice but we're talking $1200+ for bare bones. Also an interesting conversation I had with a rep from highpointscientific mentioned an 8" DOB would be more blurry and have less color than an equivalent 8" SCT, which got me worried about a DOB and seemed to contradicted things I've read, but again I have no practical experience here. All I know is I bought a $200 scope off Amazon a year ago that could view the moon and bird watch. Saturn and Jupiter were blurry, shaky, white dots, forget about DSO's. I returned that 4.5 star hunk of junk and wanted something more. I hear great things about DOB's far as viewing, but I'm not going to find an accurate video online of what one would really see through it for obvious reasons. So here I am looking for advice. Would an 8" DOB be a good first buy? Would it genuinely be able to see the planets well along with many faint and DSO's? I know a 10" or 12"+ would gather more light while sacrificing cost and bulk, but are they that big of difference between being able to see DSO's and not vs. an 8"? What I would hate is to buy an 8" DOB and immediately think "I should have bought a 10" or bought a 10" and never use it as it's too much of a hassle to lug down the stairs & setup? So C'mon experts, please bring it! If you made it this far, thank you very much & you'll have good karma for many moons to come!!!
Yesterday we released version 0.20.4 of Stellarium.
The major changes of this version:
- Added Calendars plugin
- Many changes in AstroCalc tool and core of Stellarium
- Many changes in plugins
- Updated DSO catalog
- Removed Compass Marks plugin (the feature moved into core)
Download binary packages for Windows, Mac and Linux you may here: https://github.com/Stellarium/stellarium/releases/tag/v0.20.4
Thank you very much to community for bug reports, feature requests and contributions!
Full list of changes:
- Added Balinese Pawukon calendar into Calendars plugin
- Added notes on polygonal landscapes (technical restrictions) (GH: #1397)
- Added Calendars plugin (GH: #1343)
- Added configurable values for quick FOV tool (GH: #1391)
- Added new zoom algorithm (GH: #1415, #529)
- Added compass marks into core of planetarium
- Added ability to hide cardinal and compass buttons from the GUI
- Added missing time zone America/Godthab
- Added few DSO textures (GH: #1402, #1441)
- Added Galactic Center and Anticenter points
- Added a config option to use multisampling for rendering "Planet"s (GH: #1388)
- Added landers from the Chinese Lunar Exploration Program into list of locations
- Added on-screen controls for OAG in Oculars plugin (GH: #935)
- Added table view of exoplanets (GH: #1141)
- Added show angular distance between the moon and host planet (GH: #1372)
- Added classical cepheids filter for AstroCalc/WUT tool
- Added Algol-type eclipsing systems filter for AstroCalc/WUT tool (GH: #1355)
- Added ability to toggle to using decimal degrees for various navigational data through follow the option "Use decimal degrees" in the main GUI (GH: #1344)
- Added script with shortcut, which add ability to jump to random location for celestial navigation game and practice (GH: #1345, #1058)
- Added support flip commands into Scripting Engine (GH: #1351)
- Added new language: Central Atlas Tamazight
- Added comet icon for ephemeris points plotting for AstroCalc/Ephemeris tool (GH: #1332)
- Added script skybox.ssc into list of translatable scripts (GH: #1335)
- Added config option to hide selection markers (default: viewing/flag_show_selection_marker = true) (GH: #1321)
- Added export list of objects as Stellarium bookmarks into AstroCalc/WUT tool
- Added support capital Greek chars in Search Tool (GH: #1282)
- Added some discoverer’s original designation for double stars as their scientific designations (GH: #1282)
- Added option to hide unlabelled ephemeris markers (GH: #1315)
- Added ability to run the silent uninstall Stellarium in Windows
- Added ability use decimals value for ephemeris steps in AstroCalc/Ephemeris tool (GH: #1289)
- Added "No" default for deletion confirmation warning (GH: #1292)
- Added ability to toggle show extra decimals in the navigational info (GH: #1303)
- Added tool for build an AppImage package (GH: #1288)
- Added ability for following an option ''Use decimal degrees" for longitude and latitude in Location dialog to define format of data (GH: #1416)
- Fixed collision calendars panel with bottom button bar (GH: #1422)
- Fixed zooming to FOV when duration is zero (GH: #1430)
- Fixed designations for star HIP 62819 (GH: #1432)
- Fixed crash when attempting to add a sensor (GH: #1407, #1403)
- Fixed UMa figure in S&T skyculture (GH: #1414)
- Fixed typos in Chinese skyculture (GH: #1413)
- Fixed text for meteor showers plugin (GH: #1387)
- Fixed the visual style of color chooser (GH: #1395)
- Fixed GUI of AstroCalc/Positions tool
- Fixed error in GUI of AstroCalc/WUT tool
- Fixed errors in documents for scripting engine
- Fixed typos and errors in various sky cultures
- Fixed running scripting method core.quitStellarium(); (GH: #1363)
- Fixed the location of Dunsink Observatory (GH: #1370)
- Fixed rendering orbits with undefined period
- Fixed orbital elements for comet Halley (1986) in the default ssystem_minor.ini file
- Fixed typos in skycultures
- Fixed odd cyclic behaviour of HiPS (GH: #1323)
- Fixed odd survey interaction (GH: #1314)
- Fixed crash when reference.fab file has wrong format
- Fixed closing various dialogs (fix #1305, #1338)
- Fixed sorting issue in AstroCalc/Ephemeris tool
- Fixed search stars by designations (u Her and U Her are different stars!) (GH: #1282)
- Fixed adding extra designations for stars, who already has Bayer and Flamsteed designations (GH: #1282)
- Fixed sorting stars by their designations (partially) (GH: #1282)
- Fixed selecting invisible stars (GH: #1331)
- Fixed switch to native planet names when skyculture is changed in Location dialog (GH: #1203)
- Fixed installing star names for Western (O.Hlad) skyculture (GH: #1170)
- Fixed typecast: avoiding of jumping the markers of exoplanets and pulsars (GH: #1286)
- Fixed handling custom shortcuts and few spell-check fixes
- Fixed GUI issue in Observability plugin
- Fixed inconsistency of NGC/IC list in AstroCalc/WUT tool (GH: #1310)
- Fixed filling version info for Windows installer
- Fixed installer for Windows
- Fixed translatable string for Icelandic calendar
- Fixed Puppis constellation lines in S&T skyculture (GH: #1438)
- Fixed Mensa and Microscopium in S&T skyculture (GH: #1440)
- Changed rendering planets: improve planets' halos size in relation to stars' (GH: #1361, #367)
- Changed rendering of orbits in Satellites plugin: Hide invisible part of orbits when "hide invisible artificial sats" option is enabled (GH: #1349)
- Changed GUI behavior: Enlarged maximum dialog size (GH: #1318)
- Changed versioning scheme of Stellarium
- Changed few DSO textures: reduce the size of some texture files (GH: #1442)
- Updated Stellarium User Guide (GH: #1334)
- Updated DSO catalog (v3.12)
- Updated GUI of Calendars plugin
- Updated GUI: refactored block "Additional buttons"
- Updated description of Chinese skyculture (GH: #1410)
- Updated Bengali descriptions for landscapes and skycultures (GH: #1380)
- Updated nomenclature data
- Updated few DSO outlines (GH: #1368)
- Updated initial time steps for AstroCalc/Phenomena tool (GH: #372)
- Updated Solar System Editor pluign: improve docs + added confirmation dialog (GH: #1304)
- Updated DSO names
- Updated upper limit for font size
- Updated GUI of AstroCalc tools
- Updated Exoplanets plugin: added extra info
- Updated Satellites plugin: cosmetic improvement the handling the visibility of satellites by their groups
- Removed Compass Marks plugin
- Removed the XPM version of the app icon (GH: #1384)
- Removed dead links from skycultures
- Removed support of shortcuts from AstroCalc tools (GH: #1293)
Hey everyone !
Hope your all doing as well as you can be with this pandemic ! Im completely new to this stuff, im looking for some advice on the right telescope kit to buy. I dont want to be spending too much cause like im new and wanting to try it out, just hoping you guys have got some suggestions for telescopes for the value.
Mainly wanting to look at stars (my stepdad passed away 3 weeks ago and my partner bought a "name a star" for him and would love to see it properly) and im interested in see the planets like the rings and stuff too
Any help would be very appreciated !
Possibly below £100 the cheaper the better at the minute but dont want it to be so cheap and tacky that i can only see the end of the garden through it lol
Stay safe everyonr
Saturn and Jupiter in the Southwest sky at 19:30est on December 5. Globular Cluster M75, Saturnian moons Rhea and Titan, and Jovian moons Ganymede, Callisto, Io, and Europa are also visible.
Sony a6400, 69 light frames, darks, flats, dark flats, and bias. 8 seconds, f6.3, 321mm, iso400. Stacked in DeepSky Stacker. Processed in StarTools and Photoshop.