IStellar App Reviews

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Simple and beautiful. There are now seven serious star-charting apps in the iTunes Store (as of 30 January 2009). Each is good in its own ways, and each has its weaknesses. iStellar is one of the simpler apps. It starts up quickly, draws gorgeous sky images, and is very easy to use. Users will especially appreciate the beautiful full-color stars and constellation artwork. As of this writing, iStellar is the only app that includes artwork for all 88 constellations. It also offers a wider zoom range than any app except GoSkyWatch, and a very nice user interface for setting the time and showing time-lapse animation. One nice feature for beginners is that iStellar draws planets as stars--the way they actually appear in the sky. Most of the other apps use either special symbols or photographs taken from space. The main weakness of iStellar is that it doesn't tell you anything else about the objects in the sky. Nor can you search for an object by name; the app simply shows you what you'll see in a given direction, from a given place, at a given time. You can't see what's below your current horizon, so you have to change the time or location to view the other half of the sky. The settings in iStellar give you full control over which extra elements are drawn on the chart: constellation lines, names, and pictures; names of planets and brighter stars; and a collection of 110 clusters, nebulae, and galaxies (represented by colored symbols, not images). There's also a light pollution setting that can hide the fainter stars. The closest competitors to iStellar at this time are Star Walk (even prettier images but less control over the appearance); iAstronomica (full-sky map and even easier to use, but shows a lot less); GoSkyWatch (wider zoom range but plainer images); and Distant Suns (much more information but also much more complex). If you want a more advanced app to complement (not replace) iStellar, consider Starmap or Uranus. (This review is of version 1.0.4 of iStellar.)

Impressive Upgrade. Astro Arts has done the right thing in correcting the upgrade path of iStellar. My iStellar 1 upgraded to iStellar 2 as promised. This is an impressive upgrade. I'll need to learn its many new features before writing a full review. Buy this app to support these devs as they perfect a truly original and comprehensive star chart. Descriptive content is still minimal, but the chart is becoming awesome and there are great efforts at an interface allowing detailed control of all elements. It's a bit buggy in this release, but nothing serious. Stars may stop twinkling, and the buttons controling the grids don't always work. Prior Reviews: Version 1.2.2 fixes the problem of crashing upon launch. Other tweeks needed: • Awkward to have to push a start button to get the clock to advance in real time. Clock should run automatically by default. • Light pollution mode needs to be more gradual. Turning it on wipes out too many stars even at the lowest setting. • Darkness is not calculated properly. Sky is shown as too light to see stars even when it is actually completely dark outside. Original review: (Other apps have since caught up in teaching the constellations.) Best App for Learning Constellations The high price hurts sales, but this is actually the best app in the store for learning the constellations. It's not perfect, but feels like a work in progress written by people with significant expertise in astronomy, programming, and user interface design. I predict they will fix the flaws and would like to see the app receive more support from star gazers. Not all other astronomy apps show cartoons for the constellations, and many that do include only an incomplete set. In nearly every case in other apps, the constellation lines are arbitrary rather than clear (why draw Geminii as a box with a line off it when it can appear as stick-figure twins?), and the cartoon is an arbitrary superimposition of a character that does not fit on top of its stars (why show the Serpent Bearer's serpent not following its line of stars?). This is the only app showing carefully conceived, beautifully drawn lines and cartoons for every constellation. I have wondered since childhood how the ancients saw pictures in the night sky. This app shows me how. Improvements needed: Night vision mode, especially in menus; foreground added to landscape shown at horizon; option to see below the horizon to see the gorgeous cartoons in the opposite hemisphere; short histories of the constellations.

It's a toy. I have been using Planetarium for Palm OS for years. It has 2 million stars, full object databases, Alt-Az and sky view, rise/set times and much more. It is a professional grade tool. It's $30. This app is a fun toy but not worth the price.

Sure beats trying to find stars on a real star atlas .... The "Light Pollution" setting is a brilliant feature for deciding what you could actually see in-town. This is also one of the only apps I've seen that includes the Constellation Picture/Artwork so you can try to visualize what you actually see. The app feels very light-weight and not prone to crashing from heavy use. I can go stargazing anytime and anyplace using this app! Search for a constellation, check the name of a star, or simply admire the sunset, twinkling stars, the Milky Way, etc. iStellar is no less functional than an actual star atlas/planetarium, and far more easy to control!

"Incompatible with this iPhone". That's the message I get after the most recent upgrade to iStellar. Tech Support at AstroArts gave the typical non-response: We're sorry that you got trouble. iStellar works any iPhone/iPod touch with iPhone OS 3.0 or later. So you try re-sync application using iTunes. I resync at least once a day, and I'm running the latest OS on an iPhone 3G.

Look Somewhere Else. I actually purchased this app by mistake. I wanted to view more details and read the reviews, but the apple store just starts the purchase without a confirmation. Now for the app. It shows stars, it shows constellations. Ok, big whoop. You can't search for objects, you can't adjust magnitude to relate to your actual human eye view. The app doesn't track your position relative to the direction your facing. So basically, I'm not impressed and actually quite put out that I paid 9 bucks for this app which should have sold for 99 cents. I believe they have a nice solid foundation on which to build and make improvements. But for now, this app is one to either avoid, or maybe the developer will rethink the price. Bottom line. Look somewhere else.

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Well done. Visually beautiful display. Might not be enough technical "stuff" for some, but it is a lovely view of the stars and planets in your pocket.

Beautiful as well as useful. This App wins full marks for its visual appearance, especially the twinkle of brighter stars. I love the ability to activate the images for the constellations and have them appear as you center in on each one. The drawings are clear and beautiful! The addition of being able to download the orbital elements for current comets proved to be highly accurate and handy as I observed Comet Lulin with my telescope during its journey through our Solar System. This is the only astronomical software that I have found so far for the iTouch with this ability. I also use this App when teaching about constellations during public observing sessions. Very well done. I do wish that we could select the whole sky, thereby allowing the user to explore the southern constellations as well. I hope that this feature will be added soon, then I can add the other rating-star!

one of my favorites!. along with starwalk, this is my favorite application on my touch. i love it. i love the twinkling stars and the graphics. i just wish everything was antialiased for a smoother look - but it's an amazing app anyway. one of the rare ones i use just about every day, if only out of curiosity!

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