January 2000 lunar eclipse
Template:Short description Script error: No such module "Unsubst". Template:Infobox lunar eclipse A total lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, January 21, 2000,[1] with an umbral magnitude of 1.3246. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 1.5 days after perigee (on January 19, 2000, at 17:50 UTC), the Moon's apparent diameter was larger.[2]
Visibility
The eclipse was completely visible over most of North America, South America, and western Europe, seen rising over the Pacific Ocean and setting over Africa, Europe, and west Asia.[3]
| File:Lunar eclipse from moon-2000Jan21.png | File:Lunar eclipse chart close-2000Jan21.png Hourly motion shown right to left |
Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 2.30601 |
| Umbral Magnitude | 1.32459 |
| Gamma | −0.29571 |
| Sun Right Ascension | 20h10m32.9s |
| Sun Declination | -20°03'20.2" |
| Sun Semi-Diameter | 16'15.2" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 08h10m24.0s |
| Moon Declination | +19°45'29.3" |
| Moon Semi-Diameter | 16'33.7" |
| Moon Equatorial Horizontal Parallax | 1°00'46.8" |
| ΔT | 63.8 s |
Eclipse season
Script error: No such module "Labelled list hatnote". This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
| January 21 Ascending node (full moon) |
February 5 Descending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-2000Jan21.png | File:SE2000Feb05P.png |
| Total lunar eclipse Lunar Saros 124 |
Partial solar eclipse Solar Saros 150 |
Related eclipses
Eclipses in 2000
- A total lunar eclipse on January 21.
- A partial solar eclipse on February 5.
- A partial solar eclipse on July 1.
- A total lunar eclipse on July 16.
- A partial solar eclipse on July 31.
- A partial solar eclipse on December 25.
Metonic
- Preceded by: Lunar eclipse of April 4, 1996
- Followed by: Lunar eclipse of November 9, 2003
Tzolkinex
- Preceded by: Lunar eclipse of December 9, 1992
- Followed by: Lunar eclipse of March 3, 2007
Half-Saros
- Preceded by: Solar eclipse of January 15, 1991
- Followed by: Solar eclipse of January 26, 2009
Tritos
- Preceded by: Lunar eclipse of February 20, 1989
- Followed by: Lunar eclipse of December 21, 2010
Lunar Saros 124
- Preceded by: Lunar eclipse of January 9, 1982
- Followed by: Lunar eclipse of January 31, 2018
Inex
- Preceded by: Lunar eclipse of February 10, 1971
- Followed by: Lunar eclipse of December 31, 2028
Triad
- Preceded by: Lunar eclipse of March 22, 1913
- Followed by: Lunar eclipse of November 20, 2086
Lunar eclipses of 1998–2002
Template:Lunar eclipse set 1998-2002
Saros 124
Template:Lunar Saros series 124
Tritos series
This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Inex series
Template:Lunar Inex series January 2000
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half-saros).[5] This lunar eclipse is related to two annular solar eclipses of Solar Saros 131.
| January 15, 1991 | January 26, 2009 |
|---|---|
| File:SE1991Jan15A.png | File:SE2009Jan26A.png |
See also
References
External links
- Saros cycle 124
- 2000 Jan 21 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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