Just over a year ago, on January 21, 2019, there was a
total lunar eclipse. This horizontal composite tracks the Moon as it crossed into Earth’s dark umbral shadow in 35 consecutive frames. To wit:
Taken 3 minutes apart, they almost melt together in a continuous screen that captures the dark colours within the shadow itself and the northern curve of the shadow’s edge. Sunlight scattered by the atmosphere into the shadow causes the lunar surface to appear reddened during totality (left), but close to the umbra’s edge, the limb of the eclipsed Moon shows a
remarkable blue hue. The blue eclipsed moonlight originates as rays of sunlight pass through layers high in Earth’s upper stratosphere, colored by ozone that scatters red light and transmits blue. The Moon’s next crossing into Earth’s umbral shadow, will be on May 26, 2021.
Image: Laszlo Francsics)
Last week’s full moon or Buck Moon (captured during its partial eclipse by Cristian Fattinnanzi) was very full. How full, you ask?
…it fell almost exactly in a line with the Sun and the Earth. When that happens the Earth casts its shadow onto the Moon. The circularity of the Earth’s shadow on the Moon was commented on by Aristotle and so has been noticed since at least the 4th century BC. What’s new is humanity’s ability to record this shadow with such high dynamic range (HDR).
The featured HDR composite of last week’s partial lunar eclipse combines 15 images and includes an exposure as short as 1/400th of a second — so as not to overexpose the brightest part — and an exposure that lasted five seconds — to bring up the dimmest part. This dimmest part — inside Earth’s umbra — is not completely dark because some light is refracted through the Earth’s atmosphere onto the Moon. A total lunar eclipse will occur next in 2021 May.
UPDATE: a deliciously moony mashup from 2013.
The sixth rock (well, gas giant with a rocky core) from the Sun is not always visible because, quite often, our Moon passes in front of it. To wit:
Such a Saturnian eclipse was visible along a small swathe of Earth — from Brazil to Sri Lanka — near the end of last month. The featured colour image is a digital fusion of the clearest images captured by successive videos of the event taken in red, green, and blue, and taken separately for Saturn and the comparative bright Moon.
The exposures were taken from South Africa just before occultation — and also just before sunrise. When Saturn re-appeared on the other side of the Moon almost two hours later, the Sun had risen. This year, eclipses of Saturn by the Moon occur almost monthly, but, unfortunately, are visible only to those with the right location and with clear and dark skies.
( Image: Cory Schmitz)
A timelapse of this morning’s eclipse from Salthill, Galway, Co Galway.
Don’t stare at it.
Thanks Ian Donohue
Earlier: Is This An Eclipse?
From the top of the St Stephen’s Green Shopping Centre, Dublin.
Piers Scott writes:
Because there was no point looking at the sky, I timelapsed the darkening of Dublin
Grand Canal Dock, Dublin this morning.
Slightly Bemused writes:
Looks like the eclipse is a but occluded today. Ah well, roll on 2026!
Blackrock, Co Dublin.
Thanks Kieran Murphy
Sandymount Strand, Sandymount, Dublin 4
Thanks John McDonald
Salthill, Co Galway.
Thanks Rory O’Riordan
From Maynooth. Co Kildare.
Thanks Lucy Newman
Above Dublin city.
Thanks Streets of Dublin
Phoenix Park, Dublin.
Seagull and eclipse over Dublin
Thanks Aleesha Tully
About half an hour after maximum obscurity when the sun briefly peeked through the clouds.
Eoghan Dunne writes:
What appears to be a goose flying over the eclipse
Thanks Conor Healy
We couldn’t see much of the eclipse at Trinity College Dublin, but the app (above) proves it happened..
A flipped morning eclipse to celebrate
International Day of Happiness
Thanks Conor Healy
Graphics showing the visibility map/path of an upcoming eclipse
Nothing we can say
There will be a total solar eclipse in Dublin on March 20 at 9.30am.
Total solar eclipses explained
Eclipse Calculator – Eclipses in Dublin, Ireland (timeanddate.com)
H/T Greg Skerries