Solar eclipse of February 7, 2008

An annular solar eclipse occurred at the Moon's ascending node of orbit on Thursday, February 7, 2008, with a magnitude of 0.965. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. The Moon's apparent diameter was near the average diameter because it occurred 7 days after apogee (on January 31, 2008, at 4:25 UTC) and 6.9 days before perigee (on February 14, 2008, at 1:00 UTC).

The moon's apparent diameter was 1 arcminute, 17.8 arcseconds (77.8 arcseconds) smaller than the August 1, 2008 total solar eclipse.

Visibility

Centrality was visible from parts of Antarctica. A significant partial eclipse was visible over New Zealand and a minor partial eclipse was seen from southeastern Australia and much of Oceania.

For most solar eclipses the path of centrality moves eastwards. In this case the path moved west round Antarctica and then north.

Observations

The best land-based visibility outside of Antarctica was from New Zealand. Professional astronomer and eclipse-chaser Jay Pasachoff observed it from Nelson, New Zealand, 60% coverage, under perfect weather.

Images

Animated path

Eclipse timing

Places experiencing partial eclipse

Gallery

• Partial from McMurdo, Antarctica, 3:23 UTC
• Eclipse projection in Christchurch, New Zealand

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.

Eclipse season

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.

Related eclipses

Eclipses in 2008

• An annular solar eclipse on February 7.
• A total lunar eclipse on February 21.
• A total solar eclipse on August 1.
• A partial lunar eclipse on August 16.

Metonic

• Preceded by: Solar eclipse of April 19, 2004
• Followed by: Solar eclipse of November 25, 2011

Tzolkinex

• Preceded by: Solar eclipse of December 25, 2000
• Followed by: Solar eclipse of March 20, 2015

Half-Saros

• Preceded by: Lunar eclipse of January 31, 1999
• Followed by: Lunar eclipse of February 11, 2017

Tritos

• Preceded by: Solar eclipse of March 9, 1997
• Followed by: Solar eclipse of January 6, 2019

Solar Saros 121

• Preceded by: Solar eclipse of January 26, 1990
• Followed by: Solar eclipse of February 17, 2026

Inex

• Preceded by: Solar eclipse of February 26, 1979
• Followed by: Solar eclipse of January 16, 2037

Triad

• Preceded by: Solar eclipse of April 8, 1921
• Followed by: Solar eclipse of December 7, 2094

Solar eclipses of 2008–2011

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.

The partial solar eclipses on June 1, 2011 and November 25, 2011 occur in the next lunar year eclipse set.

Saros 121

This eclipse is a part of Saros series 121, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on April 25, 944 AD. It contains total eclipses from July 10, 1070 through October 9, 1809; hybrid eclipses on October 20, 1827 and October 30, 1845; and annular eclipses from November 11, 1863 through February 28, 2044. The series ends at member 71 as a partial eclipse on June 7, 2206. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

The longest duration of totality was produced by member 39 at 6 minutes, 20 seconds on June 21, 1629, and the longest duration of annularity will be produced by member 62 at 2 minutes, 27 seconds on February 28, 2044. All eclipses in this series occur at the Moon’s ascending node of orbit.

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

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

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.

Notes

External links

• Eclipse Predictions by Fred Espenak, NASA/GSFC