Tom Glenn

I am a research scientist, amateur astronomer and photographer who enjoys capturing images of the natural beauty around us.

[Tom Glenn @thomasdglenn]

#Mars rising above the lunar limb. This is a stack of 15 frames captured within a 2s interval during the end of the occultation by the #Moon. Captured with a C9.25 Edge HD and ASI678mc.

[Tom Glenn @thomasdglenn]

Early Tuesday morning (9/17/24), the #Moon passed in front of #Saturn. This single frame exposure was captured at the beginning of the occultation at 04:11:35 PDT from San Diego. The image has been adjusted to normalize the difference in brightness between Saturn and the Moon.

[Tom Glenn @thomasdglenn]

@ZaphBB @Space_Station Thanks! From the video sequence, I had 11 images with the ISS in front of the Moon.

[Tom Glenn @thomasdglenn]

I captured the @Space_Station transiting the #Moon last night. Shown below is a cropped region of a single frame from the sequence (0.3ms exposure). The next post shows the full moon image. Captured with a 6" f/6 Newtonian and ASI183mm. No stacking or compositing. #ISS

[Tom Glenn @thomasdglenn]

@TomFulop Thank you!

[Tom Glenn @thomasdglenn]

@AstroSkeptic Thanks!

[Tom Glenn @thomasdglenn]

Here is the image of the entire #Moon, with the #ISS in transit. This is a single 0.3ms exposure extracted from a video captured with a 6" f/6 Newtonian telescope and ASI183mm camera.

[Tom Glenn @thomasdglenn]

The Moon, Venus, and Mars appear in close proximity in this photo from earlier tonight.

[Tom Glenn @thomasdglenn]

@tw__astro That’s going to generate a great final image!

[Tom Glenn @thomasdglenn]

This single exposure photograph (no compositing) shows the #Moon and #Jupiter at just over 1 degree of separation. If you look carefully, you can see the cloud belts of Jupiter, detail on our Moon, and three Galilean moons of Jupiter (Callisto is just out of frame).

[Tom Glenn @thomasdglenn]

@drnovle Meaning that the video posted has been sped up. There is actually a typo here too, there were 102 frames in the video, each of 2s duration, so instead of 102s it should be 204s. The posted video is only 7s, so it appears ~30x faster than "real time".

[Tom Glenn @thomasdglenn]

Mare Orientale has been the focus of much recent attention. Interestingly, the region need not be illuminated by the Sun to see it. Here is an image from last April, showing the Earthshine illuminated western limb of the #Moon occulting two stars. Video in next post.

[Tom Glenn @thomasdglenn]

@GijsDeReijke @IMOmeteors @apod Amazing image!

[Tom Glenn @thomasdglenn]

@YepItsMetal Thanks!

[Tom Glenn @thomasdglenn]

This is the South Pole of the #Moon, with labels, from an image I captured during last weekend's Full (Snow) Moon. A favorable libration and illumination allows us to see many craters that are difficult to observe. The lunar South Pole is located on the rim of Shackleton.

[Tom Glenn @thomasdglenn]

@worldscapes4k Thank you!

[Tom Glenn @thomasdglenn]

The image of the South Pole posted above is a cropped region of this larger image, captured on February 4, 2023, at 22:44PST. Check out those rays of Tycho! The distance from Tycho to the lower left of the frame is >1400km.

[Tom Glenn @thomasdglenn]

This image shows #Mars shortly before disappearing behind the #Moon last night. I managed to capture this image during intermittent rain and clouds. With Mars currently under 11" apparent size, the crater Copernicus (on the terminator) appears 5x larger in diameter.

[Tom Glenn @thomasdglenn]

@the_great_wazoo Glad you liked it!

[Tom Glenn @thomasdglenn]

I captured this image yesterday evening that shows the conjunction of Venus and Saturn. The angular separation between the two planets is less than the apparent diameter of the Moon, also present in the photograph. This is a single 2s exposure at 105mm focal length.

[Tom Glenn @thomasdglenn]

@RoccocoCctv @acj3579 Thank you!

[Tom Glenn @thomasdglenn]

@SmileSimplify @genejm29 Thanks!

[Tom Glenn @thomasdglenn]

@alimahdijaffery Nikon D500 with a 70-200mm lens at 105mm, f/5.6, ISO 400, 2s