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Tololo Totality
* Image Credit & Copyright: Petr Horálek/CTIO (Cerro Tololo Observatory) /AURA/NSF/ NOIRLab
petrhoralek.com/#about-1
noirlab.edu/public/programs/ct
noirlab.edu/public/

Explanation:
On March 14 the Moon was Full. In an appropriate celebration of Pi day, that put the Moon 3.14 radians (180 degrees) in ecliptic longitude from the Sun in planet Earth's sky. As a bonus for fans of Pi and the night sky, on that date the Moon also passed directly through Earth's umbral shadow in a total lunar eclipse. In clear skies, the colors of an eclipsed Moon can be vivid. Reflecting the deeply reddened sunlight scattered into Earth's shadow, the darkened lunar disk was recorded in this time series composite image from Cerro Tololo Observatory, Chile. The lunar triptych captures the start, middle, and end of the total eclipse phase that lasted about an hour. A faint bluish tint seen just along the brighter lunar limb at the shadow's edge is due to sunlight filtered through Earth's stratospheric ozone layer.
apod.nasa.gov/apod/ap250314.ht
science.nasa.gov/skywatching/n
jpl.nasa.gov/edu/resources/pro
science.nasa.gov/solar-system/
apod.nasa.gov/apod/ap151003.ht

apod.nasa.gov/apod/ap250315.ht

#space#moon#earth

Watching the best of the lunar eclipse

The total lunar eclipse of March 13 – 14, 2025 did not disappoint! We resolved to capture images from the late partial eclipse to maximum eclipse, mostly to be able to fit in a little sleep! Catching it all, which we could from our North America location, would have required, essentially, an all-night session. Just a bit too much!

Early partial eclipse. The brighter shadow within the penumbra lights the top portion of this image. Note a bit of reddish tone within the dark umbra. 2:08 AM EDT

I sat on a pad over the paved surface where in the cold, where the observatory is to eventually stand. The old telescope mount ticking away as it tracked the moon across the sky. Occasionally geese and ducks on the nearby pond called out against some unseen disturbance. The stars of Great Orion were sinking behind nearby trees.

Moon is deep within the umbra and last penumbra light about to be left behind. 2:19 AM EDT

In the otherwise quiet chill, I watched the lunar transition, from a bright sliver left over from the night’s Full Moon, to glowing copper orb. With a cable release I manually triggered the camera’s shutter: click — pause — click, to record the event.

Maximum eclipse. Moon is fully within the umbra but because it is not traveling through the center of Earth’s deepest shadow, scattered light from the penumbra brightens the upper limb. 2:58 AM EDT

Shortly after maximum eclipse (shown above), at 2:58 AM EDT, I shut down the telescope and, casting a wistful eye at the still-darkened Moon, went indoors. 

I fed the waiting cat, changed back to pajamas, and returned to bed. In fitful sleep, somehow still cold, happy to have sacrificed rest for the experienced phenomenon.

Tech: Askar 103 ED telescope, Canon EOS 5D Mk 4 camera, Meade Goto Mount, Photoshop. ISO 400, variable exposure times.

#2025 #astronomy #astrophotography #eclipse #moon #photography #totallunareclipse