Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile
Michael Mattiazzo

@michaelmattiazz

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calendar_today20-09-2013 05:39:03

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Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

Comet C/2021 A1 Leonard. 2021 October 26 at 11:30UT. I-TEL New Mexico T11 0.50-m @ f/4.5. 8 mins. North up. FOV 30'. Now in the 11th magnitude range. Dust tail approximately 6' north

Comet C/2021 A1 Leonard. 
2021 October 26 at 11:30UT. 
I-TEL New Mexico T11 0.50-m @ f/4.5. 8 mins. 
North up. FOV 30'. 
Now in the 11th magnitude range.
Dust tail approximately 6' north
Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

Here is the YouTube link for my presentation on the prospects for the upcoming comet C/2021 A1 Leonard youtube.com/watch?v=ZHewH3…

Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

C/2021 A1 Leonard. 2021 December 05 at 12:20UT. I-TEL New Mexico T11 0.50-m @ f/4.5. 7 min. North up. FOV 30'. UPDATE: the comet is hanging on, but at risk of disintegrating. Its rate of brightening is slowing. The next 7 days will be critical for its outcome later in December.

C/2021 A1 Leonard. 2021 December 05 at 12:20UT. 
I-TEL New Mexico T11 0.50-m @ f/4.5. 7 min. North up. FOV 30'. 
UPDATE: the comet is hanging on, but at risk of disintegrating.
Its rate of brightening is slowing. The next 7 days will be critical for its outcome later in December.
Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

Tonight, comet C/2021 A1 Leonard is seen in outburst. It was easily visible naked eye at an altitude of 12 degrees on 2021 Dec 20.47UT. m1=2.9, corrected for extinction. strongly condensed. My observation in 8x40mm binoculars 2 nights ago, on 2021 Dec 18.47UT, was m1=4.2

Tonight, comet C/2021 A1 Leonard is seen in outburst.
It was easily visible naked eye at an altitude of 12 degrees on 2021 Dec 20.47UT. m1=2.9, corrected for extinction. strongly condensed.
My observation in 8x40mm binoculars 2 nights ago, on 2021 Dec 18.47UT, was m1=4.2
Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

Wow, what a night! C/2021 A1 Leonard on 2021 December 28 at 11:25UT. Naked eye estimate 4.7. Beautiful structure in the tail. Using 15x70mm binoculars, the first 4 degrees are bright, and traceable to 9 degrees. (18 degrees photographically)

Wow, what a night! C/2021 A1 Leonard on 2021 December 28 at 11:25UT. Naked eye estimate 4.7. Beautiful structure in the tail. Using 15x70mm binoculars, the first 4 degrees are bright, and traceable to 9 degrees. (18 degrees photographically)
Michael Mattiazzo (@michaelmattiazz) 's Twitter Profile Photo

Comet C/2021 A1 Leonard on 2021 December 28, 29, 30th. A minor outburst experienced on the 30th, estimating naked eye magnitude of 4.5.

Comet C/2021 A1 Leonard on 2021 December 28, 29, 30th. A minor outburst experienced on the 30th, estimating naked eye magnitude of 4.5.