A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, September 6, 1998, with an umbral magnitude of −0.1544. 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 1.8 days before perigee (on September 8, 1998, at 7:00 UTC), the Moon's apparent diameter was larger.
Visibility The eclipse was completely visible over northeast Asia, much of Australia, western North America and the Pacific Ocean, seen rising over east and southeast Asia and western Australia and setting over much of North and South America.
Eclipse details Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
+September 6, 1998 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 0.81217 Umbral Magnitude −0.15437 Gamma −1.10579 Sun Right Ascension 10h59m47.2s Sun Declination +06°25'26.3" Sun Semi-Diameter 15'52.1" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 23h01m06.1s Moon Declination -07°29'07.2" Moon Semi-Diameter 16'25.0" Moon Equatorial Horizontal Parallax 1°00'15.2" ΔT 63.3 s
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. The first and last eclipse in this sequence is separated by one synodic month.
+ Eclipse season of August–September 1998 August 8Descending node (full moon) August 22Ascending node (new moon) September 6Descending node (full moon) Penumbral lunar eclipseLunar Saros 109 Annular solar eclipseSolar Saros 135 Penumbral lunar eclipseLunar Saros 147
Related eclipses Eclipses in 1998 A total solar eclipse on February 26. A penumbral lunar eclipse on March 13. A penumbral lunar eclipse on August 8. An annular solar eclipse on August 22. A penumbral lunar eclipse on September 6.
Metonic Preceded by: Lunar eclipse of November 18, 1994 Followed by: Lunar eclipse of June 24, 2002
Tzolkinex Preceded by: Lunar eclipse of July 26, 1991 Followed by: Lunar eclipse of October 17, 2005
Half-Saros Preceded by: Solar eclipse of August 31, 1989 Followed by: Solar eclipse of September 11, 2007
Tritos Preceded by: Lunar eclipse of October 7, 1987 Followed by: Lunar eclipse of August 6, 2009
Lunar Saros 147 Preceded by: Lunar eclipse of August 26, 1980 Followed by: Lunar eclipse of September 16, 2016
Inex Preceded by: Lunar eclipse of September 25, 1969 Followed by: Lunar eclipse of August 17, 2027
Triad Preceded by: Lunar eclipse of November 6, 1911 Followed by: Lunar eclipse of July 7, 2085
Lunar eclipses of 1995–1998
Saros 147
Tritos series
Inex series
Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros This lunar eclipse is related to two partial solar eclipses of Solar Saros 154. August 31, 1989September 11, 2007
See also List of lunar eclipses List of 20th-century lunar eclipses
References
External links Saros cycle 147