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CosmicRami

There's been a bit of discussion recently around the potential development of a 'Lunar Timezone', in response to a new era of exploration and growth around our celestial companion.

I certainly think we need to cut the terrestrial umbilical cord of timekeeping away from Earth (this is hard) as we step out into the Solar System (be that humans or robots), but I am thinking bigger.

Instead of just a Lunar time zone, how can we build scalability and universality?

One time system to rule them all.

Thankfully, nature has given us just the tools ..... PULSARS.

My latest feature article for #SpaceAustralia on building a Galactic timekeeping system using pulsars.

spaceaustralia.com/feature/bre

#RadioAstronomy #Pulsars #Navigation #Timing #Positioning #TimeKeeping #Astrodon

Lunar surface in the foreground, with craters and mountains shadowed. In the distance, the Earth, half illuminated.
4 comments
John Bell πŸ‡ΊπŸ‡¦πŸ‡ͺπŸ‡ΊπŸ”ΈπŸ•·οΈπŸ΄σ §σ ’σ ·σ ¬σ ³σ Ώ

@CosmicRami certainly makes a lot of sense. The UTC timezone is related to the tropical year on earth, so would not be easy to measure for an observer who is not on the Earth.
Are pulsars stable enough over a long time frame? My thoughts would be that there is a risk that the rotation speed would vary if there is any mass accretion

CosmicRami

Hi @johngbell95 yep, millisecond pulsars (which are billions of years old and have stabilised over that time) have been shown to be as or better than terrestrial atomic clocks over the long term.

It's rare for them to glitch (like the young pulsars) and their spin down rates are much better quantified.

When they become millisecond pulsars, they have finished their accretion phase (so, we wouldn't use accretion powered pulsars in this, only rotation powered pulsars).

Al

@CosmicRami Now here is a big thinker, I like it. tell us more

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