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Loading contentZeta Cassiopeiae
Fulu is a subgiant in the constellation Cassiopeia (Cassiopeiae), lying about 593 light-years from Earth.
Class B. Hot, blue-white stars. Massive and luminous, they often light up the regions where they form. Such stars have surface temperatures around 10,000–30,000 K and appear blue-white to the eye.
| Spectral type | B2IV |
| Luminosity class | IV |
| Apparent magnitude | 3.69 |
| Absolute magnitude | -2.61 |
| Luminosity (Sun = 1) | 962 |
| Colour index (B−V) | -0.196 |
| Distance | 593 ly (181.82 pc) |
Values are real catalogue data; fields without a reliable value are omitted, never estimated.
A subgiant has begun to evolve off the main sequence, brightening and expanding as core hydrogen fusion ends.
Facts on this topic will be cited from these primary and reference sources.
Aggregated, openly-licensed star catalogue combining Hipparcos, the Yale Bright Star Catalogue, and the Gliese Catalogue of Nearby Stars.
High-precision parallax, magnitude, and position for ~118,000 stars.