Leo Triplet – Mosaic / M65 / M66 / NGC 3628

NameLeo Triplet
Designation(s)Arp 317, M 66 Group, NGC 3628, M 65
Object Type(s)Galaxy
Relevant Catalog(s)All (Chron), NGC
Arp CategoryGroups of galaxies
Obs. Lat/Long42° 17', 073° 57'
ConstellationLeo
Date and Time Observed2024-11-25 05:22:00
Instrument8" EdgeHD SCT
CameraSeestar Built-in SONY IMX462 Sensor
Image DetailsUp is 43.4 degrees E of N. Total integration time was 40m. First time using Mosaic mode.. Darks subtracted.
DescriptionThis is a reprise of an earlier Seestar observation of the Triplet in December of 2023. That time, by luck, all 3 objects fit onto the sensor. This time only M65 and M66 fit, so I needed to use Mosaic Mode. Though it's pretty slow, I thought it did a good job and makes the Seestar much more useful.
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