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Contains:  IC 353, Merope nebula, NGC 1435, Maia nebula, NGC 1432, The star 32Tau, The star Pleione (28Tau), The star Atlas (27Tau), The star ηTau, The star Merope (23Tau), The star Sterope I (21Tau), The star Taygeta (19Tau), The star 18Tau, The star Electra (17Tau), The star Celaeno (16Tau)
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M45 – The Pleiades – My Second DSO, 


            Van H. McComas
M45 – The Pleiades – My Second DSO

M45 – The Pleiades – My Second DSO

Technical card

Resolution: 5535x2991

Date:March 16, 2019

Time: 21:00

Frames: 16

Focal length: 250

Seeing: 4

Transparency: 8 job: 2587603

RA center: 57.083 degrees

DEC center: 24.020 degrees

Pixel scale: 3.872 arcsec/pixel

Orientation: 300.233 degrees

Field radius: 3.384 degrees

Locations: Van McComas, Gloucester, Virginia, United States

Data source: Backyard


M45 – The Pleiades – My Second DSO

Here is my second attempt at a DSO, Messier 45, the Seven Sisters open star cluster, located 444 light-years away it is the closest star cluster to Earth.

My plan was to shoot 20 images and stack them but thin clouds rolled in and I only got 16 images. My settings were ISO 800, 30 seconds, f/5.6 on the 250 mm Canon telephoto lens with the modified Canon T7i camera using the Skywatcher All View Alt/Az mount. I started shooting around 9 PM.

This is not an award winning image but I am pleased with the outcome. I am getting a bit better each time out. This was shot with a 77.8% Moon trailing.



Van H. McComas
License: None (All rights reserved)

Sky plot

Sky plot


M45 – The Pleiades – My Second DSO, 


            Van H. McComas

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