January 1998

February. 1998

March 1998


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Day Moonage Phenomenon (JST)
1 Sun 3.9 12:34 Moon passes equator, to northern hemisphere
2 Mon 4.9 05:38 Mon passes 00o38'.7 south of Saturn (Occultation in South America)
20:17 Mercury passes 01o58'.9 south of Neptune
3 Tue 5.9 Setsubun
01:24 Neptune is closest to Mercury (01o57'.3)
02:54 Moon is closest to Asteroid Vesta (01o45'.8)
4 Wed 6.9 07:53 First quarter moon
09:57 Longitude of the sun reaches 315 degrees
5 Thu 7.9 S-CMi is at maximum brightness (Mag:Period 333 days, 6.6-13.2)
20:51 Occultation of Gamma-Tau(Mag:3.9) in Hyades
6 Fri 8.9 01:22 Occultation of Theta-Tau2(Mag:3.6) (Tokyo)
02:41 Venus is at apogee(R.A.:19h16m.0)
7 Sat 9.9 20:23 Asteroid Pallas is at conjunction
8 Sun 10.9 01:29 Moon is at north most(Decl.:+18o33'.6)
14:07 Mercury passes 01o22'.7 south of Uranus
19:07 Uranus is closest to Mercury (01o20'.3)
9 Mon 11.9
10 Tue 12.9
11 Wed 13.9 National holiday in Japan (Kenkoku kinen no hi)
19:23 Full Moon
12 Thu 14.9 W-Cet is at maximum brightness (Mag:Period 351 days, 7.1-14.8)
13 Fri 15.9 01:02 Algol is at minimum brightness
14 Sat 16.9
15 Sun 17.9 R-Lyn is at maximum brightness (Mag:Period 378 days, 7.2-14.3)
08:37 Moon passes equator, to southern hemisphere
08:56 Moon is closest to Asteroid Juno (01o28'.9)
21:51 Algol is at minimum brightness
16 Mon 18.9 00h Mon is farthest from the Earth (405,500km,Dia.:29'28".2)
23h Heliocentric latitude of Venus is most at north
17 Tue 19.9 R-Ser is at maximum brightness (Mag:Period 356 days, 5.1-14.4)
18 Wed 20.9 RS-Lib is at maximum brightness (Mag:Period 217 days, 7.0-13.0)
16h Heliocentric latitude of Mercury is most at south
18:40 Algol is at minimum brightness
19 Thu 21.9 05:55 Longitude of the sun reaches 330 degrees
20 Fri 22.9 RT-Cyg is at maximum brightness (Mag:Period 190 days, 6.0-10.1)
00:27 Last quarter moon
10:41 Venus is brightest (Mag:-4.6,Dia.:40".4)
16:18 Moon passes 06o53'.5 south of Pluto
21 Sat 23.9 19:35 Mercury is at exferrior conjunction(02o05'.9,Mag:-1.5,Dia.:4".9 south of Sun)
22 Sun 24.9 17:02 Moon is at south most(Decl.:-18o31'.4)
21:13 Mercury is closest to Sun (01o54'.4)
23:10 Mercury passes 01o05' south of Jupiter
23 Mon 25.9 05:42 Jupiter is closest to Mercury (01o00'.0)
24 Tue 26.9 01:31 Moon passes 01o38'.3 south of Venus
03h Comet 130P/McNaught-Hughes passses perihelion(Period 6.7 years)
04:43 Jupiter is at conjunction(00o56'.9,Mag:-2.0,Dia.:32".8 south of Sun)
14:52 Moon passes 03o03'.2 north of Neptune
25 Wed 27.9 06:52 Moon passes 03o20'.1 north of Uranus
15:24 Pluto is most at west(Mag:13.8,Dia.:0".1)
26 Thu 28.9 23:05 Moon passes 01o25.2' north of Jupiter
27 Fri 0.4 02:26 New Moon(Total solar eclipse in Mid and South America)
10:22 Moon passes 01o26'.5 north of Mercury
28 Sat 1.4 05h Moon is nearest to the Earth (359,080km, Dia.:33'16".7)
07:21 Moon passes 00o44'.6 south of Mars(Occultation in South Pacific Ocean)
11h Comet 55P/Tempel-Tuttle passses perihelion(Period 33.2 years)
21:51 Moon passes equator, to northern hemisphere

Special Thanks to Shirakawa Astronomical Observatory

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