A story written in starlight.
Trace the hero. Find the radiant.
- LOOK FOR
- Mirfak · Algol
- A GREEK SKY STORY
- Perseus rescues Andromeda from a sea monster.
Her mother, Cassiopeia, sits nearby in the sky. - THE CONNECTION
- Three figures. One ancient story.
Stars at very different distances.
A classical interpretation. Other cultures tell different stories about these stars.
- METEOR SHOWER
- Perseids 007 PER
- ORIGIN
- Comet 109P/Swift–Tuttle
- SEASON
- July–AugustMid-August; consult a calendar for a specific year.
Earth meets the comet’s debris. The streaks appear to radiate from Perseus; the constellation does not produce them.
Radiant direction indicates perspective. The constellation is not the source of the meteors. ZHR is a standardised rate, not a direct count for this scene.
The four animation stages compare illustrative activity. They are not measured rates or this year’s forecast.
- REFERENCE SKY
- Hong Kong13 August 2026 · 01:00 HKT
- Perseid radiant · J2000
- RA 48° · Dec +58°
- Mirfak · J2000
- RA 03h 24m 19sDec +49° 51′ 40″
Rounded J2000 reference direction; the radiant drifts during the shower.
Choose Horizon for a level view with true directions and an adjustable reference time. Art keeps the composed view. The scenery is imagined; neither mode is a live local sky.
A constellation is an area of sky, not one coordinate.
About this sky & sources +
Catalogue stars and traditional line patterns share one celestial projection. Terrain and mythological figures are original artistic interpretations.
Art preserves the composed scene. Horizon uses the selected Hong Kong time and true cardinal directions, with a level mathematical horizon. Its continuous illustrated panorama is an imagined setting, not surveyed Hong Kong terrain.
Catalogue coordinates use J2000 and are precessed to the scene date. Weather, moonlight, terrain obstruction and atmospheric refraction are not modelled. This is a learning view, not an observing forecast.
Artwork: generated with imagegen for KamCosmos. Star catalogue and linework: d3-celestial; BSD notice retained in this page.
