File:Moon distance range to scale vi.svg
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Summary[edit]
| Description |
Tiếng Việt: Khoảng cách đến Mặt trăng theo đúng tỷ lệ. Số liệu theo sách Arthur N. Cox, Allen's Astrophysical Quantities, Springer Science & Business Media, 2000, pp.308-309, ISBN 9780387987460 English: Based on File:Moon distance range to scale.svg, but corrected with data from Arthur N. Cox, Allen's Astrophysical Quantities, Springer Science & Business Media, 2000, pp.308-309, ISBN 9780387987460.
Angular size values (at perigee & apogee) are given in pairs of geocentric and topocentric (zenith) values. Geocentric Angular diameter equals Moon diameter divided by Moon center to Earth center distance. Average geocentric angular radius equals Moon radius divided by Average Moon center to Earth center distance equals 1738.2 (this value is in ISBN 9780387987460 pp.309) divided by 384401 (this value is in ISBN 9780387987460 pp.308) equals 0.00452184 rad equals 15 minutes 32 seconds in agreement with geocentric value of "Moon semi-diameter at mean distance" from ISBN 9780387987460 pp.309 . Min geocentric angular diameter equals 2*1738.2 divided by 406700 (this value is in ISBN 9780387987460 pp.308) equals 0.0085478 rad equals 29.4 minutes. Max geocentric angular diameter equals 2*1738.2 divided by 356400 (this value is in ISBN 9780387987460 pp.308) equals 0.009754209 rad equals 33.5 minutes. Topocentric (zenith) Angular diameter equals Moon diameter divided by (Moon center to Earth center distance - Mean Earth radius at equator). Mean Earth radius at equator is 6376,1km from ISBN 9780387987460 pp.240. Average topocentric (zenith) angular radius equals 1738.2 divided by (384401 - 6376,1) equals 0.00459811 rad equals 15 minutes 48 seconds in agreement with topocentric (zenith) value of "Moon semi-diameter at mean distance" from ISBN 9780387987460 pp.309 . Min topocentric (zenith) angular diameter equals 2*1738.2 divided by (406700-6376,1) equals 29.9 minutes. Max topocentric (zenith) angular diameter equals 2*1738.2 divided by (356400-6376,1) equals 34.1 minutes. Apogee & perigee are noted as extreme apogee & extreme perigee (not average/random apogee/perigee), per Bibcode 1981S&T....62..110M |
| Date | |
| Source | Own work |
| Author | Tttrung |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:51, 28 February 2021 | | 4,300 × 920 (13 KB) | Tttrung (talk | contribs) | Update more accurate description of apogee & perigee, per Bibcode 1981S&T....62..110M |
| 10:25, 28 February 2021 |  | 4,300 × 920 (12 KB) | Tttrung (talk | contribs) | Update angular size with additional topocentric (zenith) values | |
| 08:48, 28 February 2021 |  | 4,300 × 920 (12 KB) | Tttrung (talk | contribs) | Update positions at perigee & apogee according to "Arthur N. Cox, Allen's Astrophysical Quantities, Springer Science & Business Media, 2000, pp.308 - 309" | |
| 10:22, 4 December 2020 |  | 4,300 × 920 (5 KB) | Tttrung (talk | contribs) | Adding mean position of center of mass of Earth-Moon system | |
| 08:54, 4 December 2020 |  | 4,300 × 920 (5 KB) | Tttrung (talk | contribs) | Uploaded own work with UploadWizard |
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