Mark Chast

I share astrophotography images and some family anecdotes. I work @ Adobe as an SRE for Document Cloud and the views expressed here are my own. #FullDisclosure

[Mark Chast @mchast]

An animation of Jupiter from 2021-08-04. This shows an eclipse happening on Jupiter as its moon, Io, passes between the gas giant and the sun. Io is visible to the left of the moon at the start as it begins its transit and its shadow moves across the cloud tops of of Jupiter!

[Mark Chast @mchast]

@AJamesMcCarthy

[ARCHIVED - NASA Sun & Space @NASASun]

If you spot aurora from this major solar storm, you can #DoNASAScience by making a report to participatory science project https://t.co/25lyqbJDAq!

[Mark Chast @mchast]

This is from Loveland Ohio.

[Mark Chast @mchast]

No words. Just LIGHTS

[Mark Chast @mchast]

Not sure why it double tagged people…

[Mark Chast @mchast]

@FujifilmX_US Just shared my image last night (X-T30, XF70-300):
https://t.co/Y196J21MTp

[Mark Chast @mchast]

This is my Eclipse image. We took the kids and drove up to Hueston Woods State Park. I forgot a few bits so ended up mainly shooting with my X-T30 and XF70-300 (used from @Lensrentals ) on a plain tripod. This is one stacked set of bracketed images.

[Mark Chast @mchast]

This is my Eclipse image. We took the kids and drove up to Hueston Woods State Park. I forgot a few bits so ended up mainly shooting with my X-T30 and XF70-300 (used from @Lensrentals ) on a plain tripod. This is one stacked set of bracketed images.

[Mark Chast @mchast]

@UrbanAstroNYC Great shots!

[Alyn Wallace 🌌 @alynwallace]

We're devastated to announce the passing of our dear Alyn Wallace. Please follow the link to his Instagram account for the full announcement.
https://t.co/Fn0N5mlpF0

[Mark Chast @mchast]

@paulhaworth :-(

[Mark Chast @mchast]

Anyone heading to NEAIC or NEAF in April?

[Mark Chast @mchast]

Happy Thanksgiving!

[RIT Athletics @RITathletics]

Highlights | @RITMHKY wins its 5th straight with a 5-2 victory over @HurstAthletics. #RIT #RoarTech

[Dean Regas @DeanRegas]

Let the countdown begin. 5 short months until The Big One: the Total Solar Eclipse. Did you already call off work for April 8, 2024? I did😉 #solareclipse2024

[Mark Chast @mchast]

@AstroBackyard Using the original iOptron CEM40. No complaints although now I would like some more capacity. 🤔

[Mark Chast @mchast]

@ChargePointnet @dominos @stateofcharge /@OutofSpecPod do either of you know if the Battery warranty covers the on-board charger? 🤔(Model 3)

[Mark Chast @mchast]

113k miles. 5 years. Car won’t charge tonight and we are out of town. 😔 waiting on roadside quote for a tow.

[Mark Chast @mchast]

@ChargePointnet @dominos Found a chargepoint location at a hotel. Looks like DC Fast charging isn’t working for my Model 3 but AC charging is. We will at least get some sleep in a bed and should be good to get home in the morning. Need to schedule service. 😔

[Celestron @Celestron]

OBSERVING ALERT: Get ready for Saturn and Moon conjuction on October 24! 🪐🌕

The Moon and Saturn will align in the night sky, sharing the same right ascension. Don't miss this close encounter between our nearest celestial neighbor and the ringed planet.