Astrophotographs of Messier 100 (M100). For other Messier Object / M100 photos. For other objects see Messier photos
Listings of astrophotos of M100 by Telescope size, viewing conditions, light pollution zone (Bortle), location and equipment.

For visual descriptions of M100 see M100 observing report.
For sketches of how M100 appears to visual observers, see M100 sketches.

M100 Photographed in Telescopes from 0 to 50mm / 0 inches to 2 inches

M100 Photographed in Telescopes from 50 to 100mm / 2 inches to 4 inches

M100 Photographed in Telescopes from 100 to 150mm / 4 inches to 6 inches

Messier Object: M100
Date day/mon/year: 7/5/2018
Time: 2200 est
Location: East Walpole MA USA
Light Zone/Bortle Zone: 7
Telescope Name: Celestron
Telescope Model: XLT120
Telescope Size: 1000mm
f-ratio of OTA: f/8.3
Mount: Skywatcher EQ6-R
Camera: ZWO ASI071MC
Exposure time: 30 second subs
Frames/stacking: 80 subs all stacked
Software: Deep Sky Stakkert, Registax 6, Photoshop CC, Lightroom CC
Imaged by: Ben Cartwright SASS

Severe LP in my backyard, this was with CLS filter but since most of the LP sources are now LED

M100 Photographed in Telescopes from 150 to 200mm / 6 inches to 8 inches

M100 Photographed in Telescopes from 200mm to 250mm / 8 inches to 10 inches

M100 Photographed in Telescopes 250mm to 300mm / 10 to 12 inches

Messier Object: M100
Date: 03/31/2011
Location: Murrieta, Ca
Light Zone/Bortle Zone: 6
Telescope Name: 254N
Telescope Model: SkyWatcher
Telescope Size: 10 inch

Imaged By: ghswen

M100 Photographed in Telescopes Larger than 300mm / Larger than 12 inches

M100 Messier 100 Discussion Threads on the Forum

Read about discussions and astrophotography postings on M100
M100 Astrophotograph Discussions

Interested in astrophotography / photographing astronomy objects? Why not get involved and join in our friendly astroimaging group below!
Astrophotography Forum Discussions

M100 Photograph Submission Instructions

Submit your observations now so you can receive the Messier photo award!
Format to submit, use this template and edit it in a notepad/wordpad:

Messier Object: M100
Date: day/month/2017
Location (Town/City, Province/State, Country) (can be approximate):
Light Zone/Bortle Zone:
Lunar phase:
Telescope Name:
Telescope Model:
Telescope Size:
CCD/DSLR camera:
Total Exposure time:
# Frames/stacking:

Paste the text into the telescope size and Messier object.
Also paste the thread photo thumbnail as per instructions below.

Please submit into the correct site by:
1) Update your thread with the object photo submission and upload your photo (manage attachments, upload). Keep this window of the thread open as a tab or window
2) Open a new tab by going to the Messier Photos page
2) Go to the object page for the object you want to submit
3) click on Edit for the right telescope size
4) paste your wordpad/notepad edited submission edited from template above into the area, without pasting on top or deleting any previous information
5) paste your thumbnail by selecting and copying the Attached Thumbnail of your messier photo from your main thread
5) update your thread with the submission