Leo Trio – M65 M66 NGC 3628

In Astrophotography by Matt Shetzer

The Leo Trio, includes 3 spiral galaxies, M65, M66, and NGC 3627 and gets its iconic name from being located in the Leo constellation.

Each of these galaxies are in a gravitational tug of war and titled at a different angles, making each of their appearances different.

Located 30 million lightyears from Earth, we are observing these three galaxies as they were in the past. They might not even be there now.


ObjectLeo Trio
Wiki Linkhttps://en.wikipedia.org/wiki/Leo_Triplet
Other Names contained in imageM66 Group, M65, M66 and NGC 3628
Imaging telescopes or lensesTakahashi FSQ -106ED4
Imaging camerasQHY268M
MountsSoftware Bisque Paramount MYT
Focal reducersNone
SoftwareSoftware Bisque The Sky X, PHD Lab PHD2, Voyager, Viking,  PixInsight, Photoshop, Lightroom
FiltersAstrodon LRGB Gen2 E-Series Tru-Balance  36mm unmounted. Chroma Technology Narrowband 3nm Ha, SII, OIII – 36mm Unmounted
AccessoriesMoonlite NightCrawler 35 focuser, Maxdome II, Digital Loggers Pro Switch, Sky Alert Weather Station, Pegagsus Ultimate Powerbox v2, Starlight Xpress filter wheel.
Guiding Telescope or LensesOrion 60mm Guide Scope
Guiding CameraZWO ASI224MC Guide Camera
Imaging Dates1/29/22, 1/30/22
FramesLuminance: 17×300″ (1.4h)  Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Red: 15×300″ (1.25h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Green: 15×300″ (1.25h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Blue: 15×300″ (1.25h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Integration5h 9′
Flats20 per Filter
Flat Darks40
Bortle Dark-Sky Scale:2
RA center11 18 55.221
DEC center13 05 24.71
Pixel scale3.76
Resolution6280 x 4210
LocationsSirus 3.5m Observatory, Carbondale Colorado
Data sourceBackyard
Post Processing TechniquesPixInsight to Photoshop to Lightroom
Median FWHM PixelsL 3.181, R 2.933, G 3.026, B 3.136
Leo Trio – M65 M66 NGC 3628 was last modified: September 6th, 2022 by Matt Shetzer