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At this point we assume you have your mobile device talking to Seestar, and you’re looking at the Home Screen.
If you’re about to embark on your first session with the Seestar, do it during daylight when you can see what you’re doing.
Start by selecting the Scenery Mode on the Home Screen. If you're using a phone, it'll be hiding out of sight over there on the far right end of the Stargazing, Solar, Lunar, Planetary, Scenery row (under the weather forecast). The app seems to have been designed with a tablet in mind, so you might try it, if you hav one.1)
In the center of the Scenery screen, if you tap it, is a little white circle that turns into what amounts to a “joystick” that you control by sliding your finger on the screen. It has a Slow and Fast mode both of which are, frankly, frustrating because they aren’t very precise. And when you return the “joystick” to the center, the scope keeps going and overruns what you wanted to look at. It is especially bad in the Fast mode. But with a little practice you’ll get the hang of it.
Slide the joystick up on the screen and the Seestar arm with the scope in it (known as the OTA or Optical Tube Assembly) will start to elevate in altitude up toward horizontal. Move the joystick left and right and you’ll see the Seestar slew in azimuth. Now practice by trying to center distant targets and fiddle with the focus so you learn how it works.
If you happen to be in a location where distant objects move slowly such as ducks on a lake or boats on the ocean the Seestar will track them if you tap the square with a dot in it and then draw a line across the object you want to track. The Seestar will put a box around it, move it to the center of the screen, and then keep it there. It’s not the most reliable and is easily confused by objects in the foreground and background or low contrast. But when it works, it’s fun to use to make a movie or timelapse.
Now let’s go get some pictures of our closest star using Solar System Mode. First make sure the compass has been calibrated and level. (See Settings). Then, use the Open Arm button at the top of the screen to access the lens opening.
Now, tap the solar icon on the Solar System Screen, and insert the solar filter as directed. Once you install the solar filter, click the Go Gazing button and level the scope if necessary, the scope will find the Sun. Patience, it takes a while—you may even see the Sun flash across the screen as it hunts for it.2)
If the Seestar doesn't located the Sun, use the crack between the OTA and the base as an aiming sight and point the scope using the joystick just a little to the left of the Sun. To avoid looking at the Sun, just watch the shadow on the ground or hold your hand behind the scope. When the crack appears as a light line in the shadow, point the scope a little left. Now tell it to GoTo the Sun again. If that doesn't work, try maneuvering the scope your self to find the Sun. You'll know you're close because the edge of the screen will get brighter. If it gets darker you're going the wrong way.
You only get one chance to do the solar filter thing wrong.
If you point the scope directly at the Sun without the filter it will turn your Seestar into an expensive paperweight.
That applies to taking the filter off, too. In your mind you’re going to shut down or go to some other target, but the scope will still be pointed directly at the sun. So be sure to slew the scope away from the Sun before you take the filter off.
So now that you’ve found old Sol, you can use the same process in Lunar Mode, even during the day if you can see the Moon in the sky.
Both the Sun and Moon Modes have 2x and 4x enlargement (not zoom) buttons, so you can have some fun looking at Sunspots and craters. The buttons will select a small portion of the image and display it full screen like this 2X view. DSLR folks refer to it as digital zoom so you’re forgiven if you think there is some actual zoom involved. But nothing in the optical path changes in the Seestar (or DSLRs). You’re looking at the same data, just displayed larger.
Imaging in Planetary Mode is a little different because the planets appear tiny thanks to the short focal length (250mm) of the Seestar, and because they’re very bright spots in the black night sky.
If you tap the image of any planet, the Sun, or the Moon you’ll get a nice description and some details. Scroll down and you’ll see a handy chart that shows what time the planet is visible from your location and it’s current altitude and azimuth so you'll know if it’s going to be behind that tree or not before you waste time asking Seestar to find it. The white dot graphically shows you what the current time is and the line shows what the planet’s altitude will be when it’s above the horizon. Drag the dot and it will show altitude, but reported Alt and Az values don’t change, which would be more useful.
On the screen that lists the planets, it you tap the Center button you’ll be shown the planets location in the Sky Atlas, but the Seestar won’t slew to it unless you press the GoTo button at the bottom of the screen. Tap the oddly named Gazing button (maybe Observe or Imaging would be better?), you’ll be shown the planets location on the sky map, the scope will slew to its location, and it will go through its plate solving routine to put the planet in the center of the screen.
Left to its own devices, the Seestar will expose for the dark background and completely blow out (over expose) the planet, obliterating the dark bands and light zones on Jupiter, the rings of Saturn, and frost on the pole of Mars. Fiddle with the exposure and gain (the circle with the + and - in it) and you'll be able to turn down the brightness and see some details.
If you zoom out using the minus button while it’s slewing you’ll see a blue rectangle (where your scope is pointed) moving toward the red rectangle (your target).
Note that you can drag the sky around when the scope is not slewing so that other planets (anything, actually) are under the red rectangle. When it is a recognizable object (one of 12,000), the Seestar will name it and present the GoTo button for your viewing pleasure.
The most awe inspiring feature of the Seestar is its Stargazing Mode (which should be called DSO Mode). This is where the Seestar really proves that the Seestar is a great value.3) This is the mode for capturing images of Deep-Sky Objects. Here's what it does:
Automatic Image Calibration: The Seestar automatically takes and applies dark, flat, and bias frames to the image, correcting for readout noise, sensor noise, and image train imperfections such was dust.
Live Preview: The app provides a real-time view of the night sky through the Seestar's camera. This allows you to see (dimly) what the telescope is pointed at and make adjustments as needed.
Target Selection: You can select your desired target either from the app's recommendations or by manually choosing an object from the Sky Atlas. You can also create your own favorites by entering a name, Declination (Dec), and Right Accession (RA). A new feature allows you to 1ouble the field of view of the captured image, essentially by creating a mosaic.
Automatic GoTo and Tracking: Once you've selected a target, the Seestar automatically slews to the object and begins tracking it, compensating for the Earth's rotation.
Image Capture and Stacking: The Seestar captures multiple short exposures of the target and stacks them together in real-time. This stacking process reduces noise and enhances faint details in the image.
Narrowband filter: If you're shooting nebulae, Seestar will apply the dualband filter to emphasize Hydrogen alpha (Ha) and Oxygen three (OIII) emissions. If you’re in a light-polluted area, you can enable the filter to minimize its impact on an image.4)
Image Saving and Sharing: Once you're satisfied with the image, it ill be saved to the Seestar's internal storage, your mobile photo app, and and your can share the result with the whole Seestar Community.
In essence, Seestar's DSO Mode (er, Stargazing Mode) takes care of the technical aspects of capturing astroimages5), allowing you to focus on enjoying and sharing the lovely images of deep-sky objects you and Seestar produce.
Now you know enough to use your Seestar, but there are some subtleties you should know about, such as field rotation.