French
DeutschAugust 2007 lunar eclipse
| Total eclipse | |||||||||||||||||
 The eclipse as viewed from Wollongong, Australia at 9:48 UTC, shortly before totality | |||||||||||||||||
| Date | August 28, 2007 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.2145 | ||||||||||||||||
| Magnitude | 1.4777 | ||||||||||||||||
| Saros cycle | 128 (40 of 71) | ||||||||||||||||
| Totality | 90 minutes, 1 second | ||||||||||||||||
| Partiality | 212 minutes, 12 seconds | ||||||||||||||||
| Penumbral | 327 minutes, 17 seconds | ||||||||||||||||
| |||||||||||||||||
A total lunar eclipse occurred at the Moon’s ascending node of orbit on Tuesday, August 28, 2007,[1] with an umbral magnitude of 1.4777. 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 2.4 days before perigee (on August 30, 2007, at 20:10 UTC), the Moon's apparent diameter was larger.[2]
This was a relatively rare central lunar eclipse, where the Moon crossed the center of the Earth's shadow. It was the most recent central lunar eclipse of Saros series 128 as well as the "longest and deepest lunar eclipse to be seen in 7 years". In the total lunar eclipse of July 16, 2000 the moon passed within two arc minutes of the center of the Earth's shadow. In comparison, this still very deep eclipse was off-center by over 12 minutes of arc.[3] The next total lunar eclipse of a longer duration was on June 15, 2011.
Visibility
[edit]Viewing from Oceania was favored for the eclipse, because at the moment of greatest eclipse (10:37:22 UTC), the Moon was at the zenith of French Polynesia. The Pacific regions of Canada and the continental United States (including all of Alaska) witnessed the whole event, along with most of eastern Australia, New Zealand and all the Pacific Island regions (except New Guinea), and the tip of the Chukchi Peninsula that includes the town of Uelen, Russia. The majority of the Americas observed an abbreviated eclipse, with moonset occurring at some time during the eclipse. Siberia, far eastern Russia, eastern South Asia, China, the rest of eastern and southeastern Asia, New Guinea, and the rest of Australia missed out on the beginning of the eclipse, because the eclipse occurred at or close to moonrise in those regions.[4]
Luzon (except Visayas and Mindanao) in the Philippines, particularly Metro Manila, missed the rare eclipse entirely, due to clouds in the area due to the rainy season, which saddened many eclipse watchers in the area, but the eclipse was sighted by other amateur astronomers in other parts of the country as the lunar eclipse seen in clear skies. The eclipse was also missed in New Guinea, especially Port Moresby because of clouds. Greenland, Europe (including western Russia), Africa, western Asia, western Central Asia, and western South Asia missed the eclipse completely.[5]
 |  Hourly motion shown right to left |  The Moon's hourly motion across the Earth's shadow in the constellation of Aquarius. |
 Visibility map | ||
Images
[edit]
Gallery
[edit] From the Oregon Coast. |  From Swifts Creek, Australia. (3 minute intervals) |
 From Bakersfield, California. |
-
From Nagayo, Nagasaki, 10:33 UTC. -
A wider angle shows stars around the moon. -
A full sky view (moon on left) shows the Milky Way (across the center), which is usually invisible under a full moon. -
From Melbourne, Australia.
Eclipse details
[edit]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[6]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 2.45448 |
| Umbral Magnitude | 1.47769 |
| Gamma | −0.21456 |
| Sun Right Ascension | 10h26m26.9s |
| Sun Declination | +09°45'56.7" |
| Sun Semi-Diameter | 15'50.0" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 22h26m50.4s |
| Moon Declination | -09°57'18.5" |
| Moon Semi-Diameter | 16'12.5" |
| Moon Equatorial Horizontal Parallax | 0°59'29.2" |
| ΔT | 65.4 s |
Eclipse season
[edit]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.
| August 28 Ascending node (full moon) | September 11 Descending node (new moon) |
|---|---|
|  |
| Total lunar eclipse Lunar Saros 128 | Partial solar eclipse Solar Saros 154 |
Related eclipses
[edit]Eclipses in 2007
[edit]- A total lunar eclipse on March 3.
- A partial solar eclipse on March 19.
- A total lunar eclipse on August 28.
- A partial solar eclipse on September 11.
Metonic
[edit]- Preceded by: Lunar eclipse of November 9, 2003
- Followed by: Lunar eclipse of June 15, 2011
Tzolkinex
[edit]- Preceded by: Lunar eclipse of July 16, 2000
- Followed by: Lunar eclipse of October 8, 2014
Half-Saros
[edit]- Preceded by: Solar eclipse of August 22, 1998
- Followed by: Solar eclipse of September 1, 2016
Tritos
[edit]- Preceded by: Lunar eclipse of September 27, 1996
- Followed by: Lunar eclipse of July 27, 2018
Lunar Saros 128
[edit]- Preceded by: Lunar eclipse of August 17, 1989
- Followed by: Lunar eclipse of September 7, 2025
Inex
[edit]- Preceded by: Lunar eclipse of September 16, 1978
- Followed by: Lunar eclipse of August 7, 2036
Triad
[edit]- Preceded by: Lunar eclipse of October 27, 1920
- Followed by: Lunar eclipse of June 28, 2094
Lunar eclipses of 2006–2009
[edit]| Lunar eclipse series sets from 2006–2009 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros # and photo | Date Viewing | Type Chart | Gamma | Saros # and photo | Date Viewing | Type Chart | Gamma | |
113.jpg) | 2006 Mar 14 | penumbral | 1.0211 | 118 | 2006 Sep 7 | partial | −0.9262 | |
123 | 2007 Mar 03 | total | 0.3175 | 128 | 2007 Aug 28 | total | −0.2146 | |
133 | 2008 Feb 21 | total | −0.3992 | 138 | 2008 Aug 16 | partial | 0.5646 | |
143 | 2009 Feb 09 | penumbral | −1.0640 | 148 | 2009 Aug 06 | penumbral | 1.3572 | |
| Last set | 2005 Apr 24 | Last set | 2005 Oct 17 | |||||
| Next set | 2009 Dec 31 | Next set | 2009 Jul 07 | |||||
Metonic series
[edit]The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will be in nearly the same location relative to the background stars.
|
|
 |  |
Saros 128
[edit]Lunar saros series 128, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 57 umbral eclipses (42 partial lunar eclipses and 15 total lunar eclipses). Solar Saros 135 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
| Greatest | First | |||
|---|---|---|---|---|
 The greatest eclipse of the series occurred on 1953 Jul 26, lasting 100.7 minutes.[7] | Penumbral | Partial | Total | Central |
| 1304 Jun 18 | 1430 Sep 2 | 1845 May 21 | 1899 Jun 23 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2007 Aug 28 | 2097 May 21 | 2440 May 17 | 2566 Aug 2 | |
| 1917 Jul 4 | 1935 Jul 16 | 1953 Jul 26 | |||
 |  |  |  | |  |
| 1971 Aug 6 | 1989 Aug 17 | 2007 Aug 28 | |||
 |  |  |  | | |
| 2025 Sep 7 | 2043 Sep 19 | 2061 Sep 29 | |||
 |  |  |  |  |  |
| 2079 Oct 10 | 2097 Oct 21 | ||||
 |  |  |  | ||
Lunar Saros 128 contains 15 total lunar eclipses between 1845 and 2097 (in years 1845, 1863, 1881, 1899, 1917, 1935, 1953, 1971, 1989, 2007, 2025, 2043, 2061, 2079 and 2097). Solar Saros 135 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
Half-Saros cycle
[edit]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two annular solar eclipses of Solar Saros 135.
| August 22, 1998 | September 1, 2016 |
|---|---|
 |  |
See also
[edit]- List of lunar eclipses and List of 21st-century lunar eclipses
- File:2007-08-28 Lunar Eclipse Sketch.gif Chart
Notes
[edit]- ^ "August 27–28, 2007 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 14 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 14 November 2024.
- ^ Visibility Map[dead link] for Total Lunar Eclipse of 16 July 2000
- ^ Visibility Map[dead link] for Total Lunar Eclipse of 28 August 2007
- ^ "Total Lunar Eclipse of 2007 Aug 28" (PDF). NASA. Retrieved 14 November 2024.
- ^ "Total Lunar Eclipse of 2007 Aug 28". EclipseWise.com. Retrieved 14 November 2024.
- ^ Listing of Eclipses of cycle 128
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]
- NASA, Eclipses of 2007
- 2007 Aug 28 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
- NASA Saros series 128
- Hermit eclipse: Total lunar eclipse: August 28, 2007
- Astronomy magazine: August 23, 2007 central total eclipse
- Photos
_(cropped).jpg)
