Anna
Updated :
All Unistellar telescopes use a stacking algorithm that improves image quality over time.
Every 4 seconds, a new image is captured and added to the stack, gradually reducing noise and enhancing detail.
As a general rule, your telescope stacks 15 images per minute (4sec>8sec>12sec>...>2min32sec>2min36sec, etc.)
If an image is affected by poor quality (shake, clouds, stray light, trees...), the software will automatically reject it.
Recommended Minimum Observation Times by Object Type
-
Planets, the Moon, and the Sun:
A few seconds are enough
These very bright targets don’t require long exposures. The algorithm is different from the Enhanced Vision. -
Stars and Comets:
A few seconds are enough
Bright and compact, stars look good quickly. -
Star Clusters (Open or Globular):
Minimum: 2 minutes
Clusters are relatively bright and dense, so short observations provide good results. -
Galaxies:
Minimum: 4 minutes
Longer sessions help reveal the structure (arms, core, etc.) and surrounding details. -
Bright Nebulae:
Minimum: 8 minutes
These diffuse targets benefit significantly from longer stacking times to bring out detail and color. -
Very Faint Nebulae:
Minimum: 16 minutes
Observe as long as possible for best results - faint details emerge gradually over time.
Note: Longer observations often lead to better images for deep-sky targets. We recommend going beyond the minimum whenever possible; however, a 32-minute observation typically offers a very good level of detail. You can stay longer on an object if your conditions allow.
Important: Seeing conditions (light pollution, sky clarity, and atmospheric stability) and your environment matter. Adjusted focus and collimation (for eVscope and eQuinox) are a must and should be checked systematically before your observation.