Dr Christa Van Laerhoven

Planetary astronomer. Handle is the Minor Planet Center's packed designation for 2004 PB112, a Kuiper Belt object in 27:4 mean motion resonance with Neptune.

[Dr Christa Van Laerhoven @K04PB2B]

@kat_volk @AstroAlysa I have a vague recollection that the default version of mercury doesn't have GR. So you can either add the correction yourself or get someone else to send you a GR-corrected version.

[🐢🐢🐢John Green🐢🐢🐢 @johngreen]

. @DanaherCorp makes 8 billion dollars in annual profits. Much of that profit comes from price-gouging the world's poorest countries for life-saving tuberculosis tests. Danaher has done this in the dark for 13 long years.
Today, we shine the light. #PeopleOverProfits

[Dr Christa Van Laerhoven @K04PB2B]

It's time for $5 tests, @DanaherCorp. You could save hundreds of thousands of lives from TB.

[Dr Christa Van Laerhoven @K04PB2B]

I'm at #CASCA2023 this week, looking forward to hearing about a lot of different things that Canadian astronomers are investigating!

[Dr Christa Van Laerhoven @K04PB2B]

On a related note, I never previously appreciated how much I use my left (dominant hand) pinky while typing.

[Dr Christa Van Laerhoven @K04PB2B]

I tripped over the puppy when on a walk with him yesterday. Puppy appears to have taken no damage. I appear to have a sprained pinky finger from my fall.

[Dr Christa Van Laerhoven @K04PB2B]

Cleaner puppy. He's going to need several baths before we get all the dirt off him.

[Dr Christa Van Laerhoven @K04PB2B]

Puppy. He's had a tough life so far.

[Yukon Astronomical Society @YukonAstronomy]

Sungazing at @fireweedmarket this afternoon.

[Yukon Astronomical Society @YukonAstronomy]

Asteroid (10112) Skookumjim. The images are 54 second exposures taken by the Sloan Digital Sky Survey in January 2006, with the second image taken about 5 minutes after the first.

[Dr Christa Van Laerhoven @K04PB2B]

It's the day after vernal equinox and it's snowing.

[Dr Christa Van Laerhoven @K04PB2B]

There are moose in my yard!

[Dr Christa Van Laerhoven @K04PB2B]

@sundogplanets The weather people keep pushing back when the expected break in our cold snap is. It warmed up to -38 C at our place today.

[Dr Christa Van Laerhoven @K04PB2B]

Yay!

[NASA @NASA]

Two weeks after launch, @NASAWebb has hit its next biggest milestone: the mirrors have completed deployment and the next-generation telescope has taken its final form.

Next up for Webb? Five months of alignment and calibration before we start getting images:

[Dr Christa Van Laerhoven @K04PB2B]

Outside thermometer is a bit crooked, but I am not stepping out of the house to fix it.

[Bobak Ferdowsi @tweetsoutloud]

What a parting shot. Solar array deployment as #JWST heads to its new home beyond the moon.

[NASA @NASA]

💎 Lucy in the sky! Our #LucyMission lifted off at 5:34am ET (9:34 UTC). https://t.co/NWDKkuUO1F

[Dr Christa Van Laerhoven @K04PB2B]

@sundogplanets Thanks for being my backup. :)