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tychocrater.bsky.social
tychocrater
@tychocrater.bsky.social
Treading water
Art, photography, bicycles, gardening
Nope to dms
mushroom on today's walk
September 20, 2025 at 7:13 PM
So I needed an 1 1/8 headset for a bike build and was looking hard at a Chris King for $200, then realized I had some nos headsets in a parts bin, so maybe this Deore XT will work.
Unless putting an mtb headset on a road frame is heresy.
September 7, 2025 at 4:46 PM
Picked up this Revere mantle clock with"Westminster chime" at a garage sale today
September 5, 2025 at 8:44 PM
Saw these Schwinns today
August 21, 2025 at 11:50 PM
New bike #tools showed up in the post today.
Hozan C-402 and 401 taps for bottom brackets and crank arms.
#wrenching
#bikesky
July 31, 2025 at 7:21 PM
Pluto, sadly demoted to dwarf planet status, has axial tilt of nearly 120 degrees, so it spins way over on it's side - "polar wander," possibly from frozen nitogen accumulating at the poles.
Surface temp -240C at the equator, so bring a jacket.
Amazing, an atmosphere in the buh-bye image.
#pluto
May 20, 2025 at 10:53 PM
Three Apollo missions and two Soviet probes left lunar retroreflector arrays so observatories on Earth could bounce lasers off them to messure the moon's distance.
Yes, the moon is moving away.

ilrs.gsfc.nasa.gov/missions/sat...
May 16, 2025 at 10:27 PM
From Spaceweather:
:...a surprising X1.2-class solar flare from the sun's western limb, followed today by an even stronger X2.7-flare from new sunspot 4087. Earth-orbiting satellites have detected four significant explosions"
Image credit:
Pepe Manteca on May 14, 2025 @ Begues, Catalonia, Spain
May 15, 2025 at 1:04 AM
NASA's Messenger spacecraft discovered the planet Mercury has water ice at the poles, "frozen at locations that never see the sunlight, made possible by the fact that the tilt of Mercury’s rotational axis is almost zero."
#mercury
May 14, 2025 at 9:07 PM
The far side of the moon always faces away from the Earth and wan't revealed until the Soviet Luna 3 mission in 1959.
Photo from the Orion spacecraft on the Artemis 1 mission.

#darksideofthemoon
May 13, 2025 at 2:59 AM
"Deposits of ice in lunar dust and rock (regolith) are more extensive than previously thought, according to a new analysis of data from NASA’s LRO Lunar Reconnaissance Orbiter mission."
#moon
#water
#lro
May 11, 2025 at 9:31 PM
Full moon incoming.
#fullmoon
May 11, 2025 at 9:25 PM