Orion PARSEC 8300M User Manual download pdf (Page 11)

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should drop below 100% (Figure 17.3). If the Cooler Power does not drop

below 100% after a couple of minutes, you will need to raise the Setpoint.

5. Monitor the Sensor Temp and Setpoint and make sure they match. If the

Senor Temp is higher than the Setpoint, you will need to raise the Setpoint.

We recommend keeping the Cooler Power to about 80% (or less) for the best

performance while still having the ability to match the temperature later if needed.

Pushing the cooler to near 100% will hinder the accuracy if your dark frames if the

dark frame temperature does not match your light frame.

4.3. Imaging Deep Sky Objects

Capturing impressive images of deep sky objects, such as galaxies, nebulae, and

star clusters, require relatively long exposures. You will take several individual

images and stack them together to form one high-quality resultant image.

Very accurate polar alignment is essential for deep sky imaging. Stars will streak

across the ﬁeld of view without precise polar alignment and tracking. Longer expo-

sures of 60 seconds or more also require autoguiding with a separate camera.

The Orion StarShoot AutoGuider can be operated with the Parsec in MaxIm DL.

To start:

1. Acquire and center the deep sky object into the ﬁeld of view of your

eyepiece. If you are using a mount with an accurate computerized go-to

system, you can keep the camera installed in your telescope’s focuser

without using the eyepiece.

2. Remove the eyepiece and replace it with the Parsec.

3. Set the Exposure Preset to Focus and precisely focus the camera. If

necessary, move the telescope to a nearby star to determine the best focus.

For best results, when using the Parsec 8300C, select Light Raw for Frame

Type so you can properly calibrate your astro-images later, see section

5, “Image Processing”. For Parsec 8300M users, simply choose Light for

Frame Type.

4. In the Expose tab, set Seconds to 10-20 and click Expose. After the image

downloads check to see if the deep sky object is centered well in your

camera. Adjust the camera orientation if needed, keeping in mind that you

may have to refocus the camera after making the adjustment. Reposition the

telescope if needed to center the deep sky object.

5. Set the Exposure Preset to LRGB, even if you are using the Parsec 8300C.

You can always rename the Exposure Preset with your custom settings.

6. Click the Autosave button, and select your exposure times, and frame type

(Figure 18.1).

Figure 17.3.

Monitor the Cooler Power, Sensor Temp, and Setpoint and make sure

they reach your goals.

Figure 18.1. The Autosave Setup window sets all of your options to autosave your

image in a sequence.

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