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Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · /meteors

ShowerLinktype

One shower's link to the IAU Meteor Data Center's lists, with where each figure of its row comes from.

Import it

import type { ShowerLink } from "@johnmorrisdotca/chikyu-earth/meteors";

Definition

interface ShowerLink {
    code: string;
    iau: number;
    iauName: string;
    status: "established" | "working";
    parent: ParentBody | null;
    checked: {
        adNo: number;
        meteors: number;
    } | null;
    from: {
        radiant: "imo" | "mdc";
        speed: "imo" | "mdc";
    };
}

Members

NameTypeDescription
codestring

The IAU's three-letter code, the same as the shower's code.

iaunumber

The IAU's number (IAUNo), the same as the shower's iau.

iauNamestring

The MDC's name for the shower, as it writes it (Greek letters spelled out).

status"established" | "working"

established when the MDC's list of established showers has it; working when it is only on the working list.

parentParentBody | null

The parent body the MDC's origin column names for it, or null when the MDC names none (or names two that disagree).

checked{ adNo: number; meteors: number; } | null

The MDC solution (its AdNo) the radiant and speed agree with, the biggest that does, and how many meteors it rests on; null when no solution of 100 meteors or more lies within 3 degrees of the maximum, or when none agrees.

from{ radiant: "imo" | "mdc"; speed: "imo" | "mdc"; }

Where the row's radiant and speed come from: imo is the International Meteor Organization's table, kept because it agrees; mdc is the MDC's solution, because the table's did not.

Examples

import { METEOR_LINKS, type ShowerLink } from "@johnmorrisdotca/chikyu-earth/meteors";

const geminids: ShowerLink | undefined = METEOR_LINKS.find((link) => link.code === "GEM");
console.log(geminids?.iauName, geminids?.status, geminids?.parent?.designation, geminids?.checked?.meteors);
Geminids established (3200) Phaethon 104490

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.