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Hoshi Stars星

The stars you can see without a telescope, with names, colours and distances; the 88 constellations with their lines and boundaries; the Messier objects; and seven map projections to draw them on.

Hoshi is the Japanese word 星 for a star. About the name

Contents

Reference · Black holes: 301 with a place, a mass and distance with ranges, how each was found and the paper behind each fact

BLACK_HOLE_FOUNDconstant

The ways a black hole was found: x-rays (from the X-rays of gas falling in), orbit (from the orbit of a companion star), microlensing (from how it bent a background star's light), stars (from stars orbiting it), gas (from gas orbiting it), masers (from water masers orbiting it), echoes (from the delay of light echoing through gas near it, "reverberation") and image (a picture of its shadow).

Import it

import { BLACK_HOLE_FOUND } from "@johnmorrisdotca/hoshi-stars/black-holes";

Definition

const BLACK_HOLE_FOUND: readonly ["x-rays", "orbit", "microlensing", "stars", "gas", "masers", "echoes", "image"] = ["x-rays", "orbit", "microlensing", "stars", "gas", "masers", "echoes", "image"] as const

Examples

import { BLACK_HOLE_FOUND } from "@johnmorrisdotca/hoshi-stars/black-holes";

console.log(BLACK_HOLE_FOUND.length);
8

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/hoshi-stars 0.47.0.