M105 / NGC 3379

Designation(s)M105, NGC 3379
Object Type(s)Galaxy
Relevant Catalog(s)All (Chron), Messier, NGC
Obs. Lat/Long42° 17', 073° 57'
ConstellationLeo
Date and Time Observed2024-05-08 22:27:00
InstrumentEdgeHD 8" f10-2,032mm FL
CameraASI294mc-Pro
Image DetailsUp is 91.4 degrees E of N. Total integration time was 9m 30s. Exposures 30s@305g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding.
DescriptionM104 was added to the Catalog based on Méchain's correspondence in his letter to Bernoulli, May 6, 1783: "There is, however, a third [nebula], somewhat more northerly, which is even more vivid [brighter] than the two preceding ones [M95 and M96]. I discovered this one on March 24, 1781, 4 or 5 days after I had found the other two." <--> I observed M104 on a crazy night when this was the only target I could sneak in before the clouds closed in. As a bright, elliptical galaxy this was the perfect target for a brief observation.... While longer integration would have enlarged the size the disc "halo" it would not have added structural details.
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