Meet a star / Lepus

Darlugal

Darlugal is a white star, hotter than the Sun, in the constellation Lepus. It is in the long, steady part of its life, making helium from hydrogen in its core, as the Sun is.

A drawing in the star's own colour, worked out from its measured colour index. It is not a photograph.

How far

70 light years

The light you see from Darlugal tonight set off about 70 years ago. Everything we know about it is that much out of date.

How bright

15 Suns

It gives out 15 times as much visible light as the Sun. It can be seen by eye away from bright lights.

Astronomers put its brightness in our sky at magnitude 3.55. Smaller numbers are brighter, and the faintest stars the eye can see are about 6.

How hot

About 9,000 K

That is the temperature of its surface, worked out from its colour, so it is a guide and not a measurement. It could be out by a few hundred degrees. The Sun's is 5,772 K. Hotter stars are bluer and cooler stars are redder, the same way a poker in a fire goes from red to white.

DarlugalThe Sun

In your sky now

Working it out…

Its names

Its own name
Darlugal
By constellation (Bayer)
Zeta Leporis
Hipparcos catalogue
HIP 27288
Henry Draper catalogue
HD 38678
Spectral type
A2Vann

Where this comes from

Distance, brightness, colour and spectral type are from the HYG star database, version 4.4, by David Nash, shared under a Creative Commons Attribution-ShareAlike 4.0 licence. Its distances are those measured by the Hipparcos satellite. The temperature is worked out here from the colour with the formula of Ballesteros (2012), and the words are written for this site.

To read more: Colour and brightness, How stars live and die, Measuring distance.