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Penumbral lunar eclipse 24 June 2002 From Wikipedia, the free encyclopedia
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Monday, June 24, 2002,[1] with an umbral magnitude of −0.791. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. 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. Occurring about 6.7 days after perigee (on June 19, 2002, at 3:30 UTC), the Moon's apparent diameter was larger.[2]
| Penumbral eclipse | |||||||||
Hourly motion shown right to left | |||||||||
| Date | June 24, 2002 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | −1.4439 | ||||||||
| Magnitude | −0.791 | ||||||||
| Saros cycle | 149 (2 of 72) | ||||||||
| Penumbral | 129 minutes, 5 seconds | ||||||||
| |||||||||
The eclipse was completely visible over Africa, Europe, west and central Asia, and Antarctica, seen rising over much of South America and setting over much of east Asia and Australia.[3]
 |
 The moon's hourly motion across the Earth's shadow in the constellation of Scorpius. |
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.21095 |
| Umbral Magnitude | −0.79099 |
| Gamma | −1.44399 |
| Sun Right Ascension | 06h13m52.0s |
| Sun Declination | +23°24'03.8" |
| Sun Semi-Diameter | 15'44.2" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 18h13m25.9s |
| Moon Declination | -24°47'04.8" |
| Moon Semi-Diameter | 15'42.3" |
| Moon Equatorial Horizontal Parallax | 0°57'38.4" |
| ΔT | 64.3 s |
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. The first and last eclipse in this sequence is separated by one synodic month.
| May 26 Descending node (full moon) | June 10 Ascending node (new moon) | June 24 Descending node (full moon) |
|---|---|---|
 |  | |
| Penumbral lunar eclipse Lunar Saros 111 | Annular solar eclipse Solar Saros 137 | Penumbral lunar eclipse Lunar Saros 149 |
| Lunar eclipse series sets from 1998–2002 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 109 | 1998 Aug 08 |
penumbral |
1.4876 | 114 | 1999 Jan 31 |
penumbral |
−1.0190 | |
| 119 | 1999 Jul 28 |
partial |
0.7863 | 124.jpg) |
2000 Jan 21 |
total |
−0.2957 | |
| 129 | 2000 Jul 16 |
total |
0.0302 | 134_(cropped).jpg) |
2001 Jan 09 |
total |
0.3720 | |
| 139 | 2001 Jul 05 |
partial |
−0.7287 | 144 | 2001 Dec 30 |
penumbral |
1.0732 | |
| 149 | 2002 Jun 24 |
penumbral |
−1.4440 | |||||
| Last set | 1998 Sep 06 | Last set | 1998 Mar 13 | |||||
| Next set | 2002 May 26 | Next set | 2002 Nov 20 | |||||
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 one partial solar eclipse of Solar Saros 156.
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