February. 1998

March 1998

April 1998


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Day Moonage Phenomenon (JST)
1 Sun 2.4 18:09 Moon passes 00o59'.4 south of Saturn(Occultation in South America)
2 Mon 3.4 13h Comet 104P/Kowal 2 passses perihelion(Period 6.2 years)
3 Tue 4.4 02:20 Moon is closest to Asteroid Vesta (00o05'.5) (Occultation in Africa)
4 Wed 5.4
5 Thu 6.4 04h Comet 129P/Shoemaker-Levy 3 passses perihelion(Period 7.3 years)
17:41 First quarter moon
6 Fri 7.4 03:57 Longitude of the sun reaches 345 degrees
7 Sat 8.4 T-Hya is at maximum brightness (Mag:Period 298 days,6.7-13.5)
V-Peg is at maximum brightness (Mag:Period 345 days,7.5-13.0)
07:09 Moon is at north most(Decl.:+18o31'.2)
12:25 Neptune is closest to Venus (03o46'.1)
19:13 Venus passes 03o46'.5 north of Neptune
23:36 Algol is at minimum brightness
8 Sun 9.4
9 Mon 10.4
10 Tue 11.4 20:25 Algol is at minimum brightness
23:37 Mars is closest to Mercury (00o36'.8)
11 Wed 12.4 R-Aur is at maximum brightness (Mag:Period 457 days, 6.7-13.9)
03h Comet C/1997 J2 (Meunier-Dupouy) passses perihelion
23:27 Mercury passes 01o10'.6 north of Mars
12 Thu 13.4
13 Fri 14.4 00:50 Pluto is at apogee(R.A.:16h33m.1)
05:05 Delta-Lib is at minimum brightness
13:34 Full Moon(Penumbra lunar eclipse, not in Japan)
14 Sat 15.4 04:54 Moon is closest to Asteroid Juno (00o49'.8)(Occultation in Antarctic)
15:15 Moon passes equator, to southern hemisphere
15 Sun 16.4 10h Moon is farthest from the Earth (406,188km,Dia.:29'25".1)
16 Mon 17.4
17 Tue 18.4
18 Wed 19.4 Higan no iri
19 Thu 20.4 02:25 Uranus is closest to Venus (03o18'.3)
15:37 Venus passes 03o20'.6 north of Uranus
23:48 Moon passes 07o04'.1 south of Pluto
20 Fri 21.4 04:38 Delta-Lib is at minimum brightness
13:00 Mercury is at eastern greatest elongation (18o32'.0, Mag:-0.2,Dia.:7".4)
18:51 Asteroid Juno is at opposition (Mag:9.1)
22:37 Lambda-Tau is at minimum brightness
21 Sat 22.4 National Holiday in Japan (Syunbun no hi)
04:55 Longitude of the sun reaches 0 degrees
16:38 Last quarter moon
22 Sun 23.4 01:35 Moon is at south most(Decl.:-18o33'.5)
23 Mon 24.4
24 Tue 25.4 02:07 Moon passes 02o58'.1 north of Neptune
14h Heliocentric latitude of Mercury is most at north
19:30 Moon passes 03o12'.8 north of Uranus
21:29 Lambda-Tau is at minimum brightness
25 Wed 26.4 04:01 Moon passes 00o05'.6 north of Venus(Occultation in South Pacific Ocean)
26 Thu 27.4 20:33 Moon passes 00o49'.4 north of Jupiter(Occultation in Europe)
27 Fri 28.4 S-Her is at maximum brightness (Mag:Period 307 days, 6.4-13.8)
04:11 Delta-Lib is at minimum brightness
23:46 Mercury is at apogee(R.A.:01h14m.4)
28 Sat 29.4 R-Cet is at maximum brightness (Mag:Period 166 days, 7.2-14.3)
03:39 Venus is at western greatest elongation(46o30'.3,Mag:-4.4,Dia.:24".5)
08:47 Moon passes equator, to northern hemisphere
12:14 New Moon
16h Moon is nearest to the Earth (357,030km, Dia.:33'28".2)
20:22 Lambda-Tau is at minimum brightness
29 Sun 1.0 04:12 Moon passes 02o56'.2 south of Mars
06:18 Moon passes 07o08'.1 south of Mercury
09:46 Moon passes 01o14'.8 south of Saturn(Occultation in Antarctic)
30 Mon 2.0 14:18 Mercury passes 04o06'.1 north of Mars
22:10 Algol is at minimum brightness
31 Tue 3.0 05:46 Moon is closest to asteroid Vesta (01o08'.9)(Occultation in South America)

Special Thanks to Shirakawa Astronomical Observatory

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