You can observe with many of our telescopes with 20 credits. Here are some examples and suggestions
You can get stunning images of galaxies with lots of details if you expose with the Luminance filter. This filter will collect as much light as possible from your galaxy. If you want to obtain some colour information, you will need to obtain multiple images in Red, Green and Blue as well.
For these galaxies, we suggest to use automated scheduling with 50% maximum illumination, and a minimum distance from the moon of 60 degrees.
- Andromeda galaxy (M 31) in colour, using the 10cm Takahashi FSQ-106ED (SPA-1)
One image in each of the Red, Green, Blue filters of 300 sec each
- The Spanish Dancer (NGC 1566) using the 60cm Planewave CDK24 (CHI-1)
One image in Luminance filter of 600 sec
Nebulae are interstellar clouds of ionized gas. You can get great details if you observe such objects using narrow-band filters (such as H-alpha or OIII), that only let the light from the ionized gas through.
For all the nebulae below, you can obtain at least a single 600 sec image using the filter H-alpha. You can also experiment adding an OIII filter, and combine them to create a coloured picture.
For these nebulae, we suggest to use automated scheduling with 75% maximum illumination, and a minimum distance from the moon of 60 degrees. Narrow-band filters are in fact less affected by moon light.
- Helix nebula (NGC 7293) using the 70cm Officina Stellare 700 RC (SPA-2) or the 60cm Planewave CDK24 (CHI-1)
- Bubble nebula (NGC 7635) using the 70cm Officina Stellare 700 RC (SPA-2)
Star clusters are very large group of stars.
- M 55 (NGC 6809), monochromatic using the 60cm Planewave CDK24 (CHI-1)
One image in Red filter of 600 sec