M 65 – NGC 3623


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M 65 is a spiral galaxy in Leo, discovered by Messier in 1780 (although some authors attributed, erroneously, its discovery to Méchain. Together with M 66 and NGC 3628 they form the so called Leo Triplet. M 65 is farther away than M 66 and has a core with little star formation (low in gas/dust), but there is some star-birth activity in the arms. This galaxy is seen nearly edge-on, what prevents us from seeing the theoretical central bar that should exist due to the tidal disruptions provoked by its neighbors.

 Additional Information


Name(s): M 65. NGC 3623.

Type: Barred Spiral galaxy

RA:  11h 18m 55s

Dec: +13º 05’ 32”

Constellation: Leo

Size (arcmin): 10×3

Magnitude: +9.3

Distance: 39 Mly


Date: 2014-03-09

Location: Corbera de Llobregat, Barcelona, Catalonia

Size (arcmin): 27×16

Telescope: Celestron 11” HD f/10

Camera: FLI ML6303 (3072x2048pix)

Guiding: Orion SSAG/Nikkor 500mm f/8

Total exposure: 90 min (L: 10x3min; RGB 10x2min each)

Processing: CCDStack, Photoshop CC 2016 and PixInsight

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