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April 2001 |
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| Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sep. | Oct. | Nov. | Dec. |
| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 |
| Day | Moonage | Phenomenon (JST) | |
|---|---|---|---|
| 1 | Sun | 7.1 | 00:18 Delta-Lib is at minimum brightness |
| 19:45 Moon is at north most(Decl.:+23o00'.5) | |||
| 19:49 First quarter moon | |||
| 2 | Moon | 8.1 | |
| 3 | Tue | 9.1 | 10h Asteroid 4034 1986 PA is nearest to Earth(0.1465AU) |
| 4 | Wed | 10.1 | |
| 5 | Thu | 11.1 | 02:24 Longitude of the sun reaches 15 degrees |
| 19h Moon is nearest to the Earth(0.949,364,809km,Dia.:32'45") | |||
| 6 | Fri | 12.1 | V-Mon is at maximum brightness (Mag:Period 341 days,6.0-13.9) |
| W-Lyr is at maximum brightness (Mag:Period 198 days,7.3-13.0) | |||
| 18:33 Occultation of Nu-Vir(Mag:4.2)(time of Tokyo) | |||
| 7 | Sat | 13.1 | 06:04 Mercury passes 09o59'.5 south of Venus |
| 07h Heliocentric latitude of Mercury is most at south | |||
| 20:10 Algol is at minimum brightness | |||
| 23:52 Delta-Lib is at minimum brightness | |||
| 8 | Sun | 14.1 | 01:12 Moon passes equator, to southern hemisphere |
| 12:22 Full Moon | |||
| 9 | Moon | 15.1 | |
| 10 | Tue | 16.1 | Z-Cyg is at maximum brightness (Mag:Period 263 days,7.1-14.7) |
| 21:54 97P/Metcalf Comet Brewington passses perihelion(Period 10.5 years) | |||
| 11 | Wed | 17.1 | |
| 12 | Thu | 18.1 | 18:29 Moon passes 08o42'.3 south of Pluto |
| 13 | Fri | 19.1 | 10:49 Moon passes 01o19'.7 north of Mars |
| 14 | Sat | 20.1 | S-Peg is at maximum brightness (Mag:Period 319 days,6.9-13.8) |
| 18:34 Mercury is closest to Asteroid Vesta (03o22'.9) | |||
| 20:31 Moon is at south most(Decl.:-23o07'.5) | |||
| 23:26 Delta-Lib is at minimum brightness | |||
| 15 | Sun | 21.1 | 13:04 Moon is closest to Asteroid Ceres (Occultation of Ceres in 00o53'.8)(Europe) |
| 16 | Moon | 22.1 | 00:31 Last quarter moon |
| 17 | Tue | 23.1 | 01:15 Moon passes 02o40'.2 south of Neptune |
| 07:56 Longitude of the sun reaches 27 degrees | |||
| 15h Moon is farthest from the Earth (1.052,404,513km,Dia.:29'32") | |||
| 18 | Wed | 24.1 | 08:10 Moon passes 02o58'.5 south of Uranus |
| 19 | Thu | 25.1 | |
| 20 | Fri | 26.1 | 09:36 Longitude of the sun reaches 30 degrees |
| 21 | Sat | 27.1 | 04:47 Moon passes 09o31'.3 south of Venus |
| 17:14 Venus is at apogee(R.A.:00h14.1m) | |||
| 23:00 Delta-Lib is at minimum brightness | |||
| 22 | Sun | 28.1 | 07:45 Moon passes equator, to northern hemisphere |
| 14h Lyr meteor shower is at peak( Apr.16-Apr.25) | |||
| 21:19 Moon is closest to Asteroid Vesta (Occultation of Vesta in 00o09'.5)(Africa) | |||
| 23 | Moon | 29.1 | 14:51 Mercury is at exferrior conjunction(00o30'.0,Mag:-2.2,Dia.:5".1 north of Sun) |
| 19:44 Mercury is closest to Sun (00o26'.4) | |||
| 21:44 Moon passes 04o28'.3 south of Mercury | |||
| 24 | Tue | 0.5 | 00:26 New Moon |
| 05:03 Moon is closest to Asteroid Juno (01o55'.0) | |||
| 25 | Wed | 1.5 | |
| 26 | Thu | 2.5 | 00:41 Moon passes 01o24'.3 south of Saturn |
| 06h Vir meteor shower is at peak( Mar.10-May 15) | |||
| 21:57 Moon passes 01o49'.0 south of Jupiter | |||
| 27 | Fri | 3.5 | |
| 28 | Sat | 4.5 | |
| 29 | Sun | 5.5 | National Holiday in Japan (Midori no hi) |
| 01:15 Moon is at north most(Decl.:+23o15'.0) | |||
| 20:39 P/1993 Comet X1 Kushida-Muramatsu passses perihelion(Period 7.4 years) | |||
| 30 | Moon | 6.5 | National holiday in Japan |
