megaparsec

[ meg-uh-pahr-sek ]

noun

, Astronomy.

1. one million parsecs.

megaparsec

/ mĕg′ə-pär′sĕk /

1. One million parsecs.

Example Sentences

If we now calculate the speed of the 1a supernovae from their color shift and correlate this with their distance, we arrive at a different value for the Hubble-Lemaitre constant -- namely just under 264,000 kilometers per hour per megaparsec distance.

From Science Daily

Because Ho’oleilana is bigger than most baryon acoustic oscillations, the researchers think it could be a sign the universe is expanding at a faster rate than first thought — at roughly 76.9 kilometers per second per megaparsec, as opposed to the standard range of 67 to 74.

From Scientific American

The universe is still expanding, at a rate of 73 kilometers per second per megaparsec, a metric known as Hubble's constant.

From Salon

In their analysis, H0 comes out to be 73.04 ± 1.04 kilometers per second per megaparsec.

From Scientific American

The Hubble constant they found, 66.2 kilometers per second per megaparsec, is not precise enough to decide between the competing measurements that already exist, but adds another data point to the hotly contested question of how fast the cosmos is growing.

From Scientific American