M96 (NGC 3368) Observation Guide — Spiral Galaxy in Leo
Overview
M96 is a spiral galaxy in Leo, catalogued as NGC 3368. Its apparent Magnitude is 9.2, and it lies approximately 38 million light-years from Earth. Best conditions for observing this object arrive in spring, and it's considered a target for experienced observers.
Spiral galaxies are characterised by a central bulge from which spiral arms extend outward. Those arms are rich in young stars and interstellar gas, with active star formation ongoing throughout.
Basic Data
| Field | Data |
|---|---|
| Messier number | M96 |
| Catalogue number | NGC 3368 |
| Object type | Spiral galaxy |
| Constellation | Leo |
| Apparent Magnitude | 9.2 |
| Distance | ~38 million light-years |
| Best season | Spring |
| Difficulty | Advanced |
| Recommended equipment | Mid-aperture telescope |
Physical Characteristics
M96 sits roughly 38 million light-years away and shines at apparent Magnitude 9.2.
The Messier catalogue represents a curated set of relatively bright deep-sky objects — while the universe contains hundreds of billions of galaxies, these are the ones accessible to amateur telescopes under reasonably good conditions.
Observing Guide
Finding M96
M96 lies within the boundaries of Leo. It transits around 20:00–22:00 in spring, reaching its highest point and most accessible position. Start by identifying the main stars of Leo, then use a star chart or astronomy app to pin down the precise coordinates.
Observing Tips
Galaxies reward dark skies and larger apertures. Keep magnification low for a wide field of view, and give your eyes at least 15–20 minutes to fully dark-adapt before attempting faint objects.
Recommended Equipment
A mid-aperture telescope works best for this object. An aperture of 80 mm or larger under a dark sky is the minimum recommended setup.
Astrophotography Tips
M96 is a popular astrophotography target. The fundamentals are Polar alignment and guided tracking via an Equatorial mount, high ISO settings, and long exposures (30 seconds to several minutes). Stacking multiple frames reduces noise and brings out detail that a single exposure never reveals.
Summary
M96 is an advanced-level spiral galaxy in Leo requiring a mid-aperture telescope. Spring evenings offer the best window — under dark skies with good preparation, this is a satisfying object to track down.
Specifications
| Object Type | 渦巻銀河 |
| Messier Number | 96 |
| Magnitude | 9.2 |
| Constellation | Leo |
| Best Season | spring |
| Difficulty | advanced |
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