σ Puppis

Sigma Puppis is easily spotted with the naked eye. Beginning at Canopus you'll note a line of bright stars climbimg to the northeast, roughly the same apparent distance from each other; first tau Puppis, then I Puppis and sigma, then a little zig to the east and you're at zeta. Back up to sigma and pause awhile.

Sigma Puppis is an orange giant with a radius about 37 times that of the Sun although some references give a radius up to 100 times.

Sigma Puppis is a wonderful binary (DUN 51) with stunning colour contrast, an orange primary and white companion: 3.3, 8.8; 74, 22.1".

In the same field is L2, a rare variable in that it can be seen throughout most of its fluctuations with the naked eye, varying from a visual magnitude of 3 down to about 6 every 141 days. Its bright red glow is unmistakeable.

Click on zeta on the map to conclude your visit with Puppis.

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1999-2014 by Richard Dibon-Smith.