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December 2003

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Day Moonage Phenomenon (JST)
1 Mon 7.2 02:16 First quarter moon
2 Tue 8.2 00:48 Moon passes 04°03.7' south of Mars
23:37 Algol is its minimum brightness
3 Wed 9.2 03:18 λ-Tau is its minimum brightness
12:00 Moon passes the equator, to the northern hemisphere
4 Thu 10.2 03:28 Venus approaches M22 (globular cluster in Sgr) (00°45.2')
5 Fri 11.2 20:26 Algol is its minimum brightness
6 Sat 12.2
7 Sun 13.2 02:10 λ-Tau is its minimum brightness
21h Moon is at the farthest from the Earth (1.057, 406,278km, Dia.: 29'25")
21:06 Asteroid Juno is at the conjunction
22:05 `Taisetsu' (Longitude of the sun reaches 255 degrees)
8 Mon 14.2
9 Tue 15.2 05:37 Full Moon
11:55 Comet 123P/West-Hartley (Period: 7.6 years) passes the perihelion
15:11 Mercury is at the eastern greatest elongation (20°56.5', Mag: -0.4, Dia.: 06.7")
10 Wed 16.2 S-Vir is its maximum brightness (Mag: 6.3-13.2, Period: 375 days)
11 Thu 17.2 00:59 Moon is at the northernmost (Decl.: +27°03.5')
01:03 λ-Tau is its minimum brightness
07:13 Moon passes 04°45.9' north of Saturn
12 Fri 18.2 09:34 Moon approaches closest to Asteroid Ceres (01°08.0')
13 Sat 19.2 R-Gem is its maximum brightness (Mag: 6.0-14.0, Period: 370 days)
S-Scl is its maximum brightness (Mag: 5.5-13.6, Period: 363 days)
05:00 Jupiter is at the western quadrature (Mag: -2.1, Dia.: 37.4")
05:53 Pluto is at the conjunction (08°39.9', Mag: 13.9, Dia.: 00.1" north of Sun)
14 Sun 20.2 23:55 λ-Tau is its minimum brightness
15 Mon 21.2 R-Vul is its maximum brightness (Mag: 7.0-14.3, Period: 137 days)
01:35 Occultation of η-Leo (Mag: 3.6) (immersion time at Tokyo)
03h Geminids meteor shower is at the peak (Dec.5 - Dec.20)
16 Tue 22.2 13:11 Moon passes 03°48.9' north of Jupiter
17 Wed 23.2 02:42 Last quarter moon
21:39 Mercury is at the apogee (R.A.: 18h54.8m)
18 Thu 24.2 02:56 Moon passes the equator, to the southern hemisphere
05:28 Occultation of γ-Vir (Mag: 2.9) (immersion time at Tokyo)
22:48 λ-Tau is its minimum brightness
19 Fri 25.2 19:10 Asteroid Ceres (Mag: 7.2) approaches to Pollux (15.7')
20 Sat 26.2 04:31 Algol is its minimum brightness
21 Sun 27.2 R-Vir is its maximum brightness (Mag: 6.1-12.1, Period: 146 days)
06h Asteroid (3362) Khufu approaches to the closest to the Earth (0.19460AU)
22 Mon 28.2 R-And is its maximum brightness (Mag: 5.8-14.9, Period: 409 days)
16:04 `Touji' (Winter Solstice, Longitude of the sun reaches 270 degrees)
21h Moon is at the nearest from the Earth (0.932, 358,332km, Dia.: 33'21")
21:40 λ-Tau is its minimum brightness
23 Tue 29.2 Imperial Birthday
01:20 Algol is its minimum brightness
02:34 Moon passes 11°19.9' south of Pluto
12h β-Ursids meteor shower is at the peak (Dec.18 - Dec.24)
18:43 New Moon
19:01 Moon approaches closest to Asteroid Vesta (04°28.5')
24 Wed 0.7 R-Ser is its maximum brightness (Mag: 5.1-14.4, Period: 356 days)
05:15 Moon is at the southernmost (Decl.: -27°02.6')
06:32 Moon passes 05°17.4' south of Mercury
18:04 Asteroid Vesta is at the conjunction
22:09 Sun approaches closest to Asteroid Vesta (01°00.5')
25 Thu 1.7 Christmas
22:09 Algol is its minimum brightness
26 Fri 2.7 00:50 Moon passes 03°14.5' south of Venus
04:35 Pluto approaches closest to Asteroid Juno (01°26.1')
09:52 Moon passes 05°15.6' south of Neptune
20:33 λ-Tau is its minimum brightness
27 Sat 3.7 07:39 Mercury approaches closest to Sun (02°19.2')
09:20 Mercury is at the inferior conjunction (02°19.6' south of Sun, Mag: 4.9, Dia.: 10.0")
17:04 Moon passes 04°39.1' south of Uranus
23:15 Mercury approaches closest to Asteroid Vesta (01°33.6')
28 Sun 4.7 03:54 Mars is at the eastern quadrature (Mag: 0.1, Dia.: 08.7")
18:59 Algol is its minimum brightness
29 Mon 5.7
30 Tue 6.7 06:03 Comet 2P/Encke (Period: 3.3 years) passes the perihelion
15:50 Moon passes 03°49.7' south of Mars
15:52 Venus passes 01°52.9' south of Neptune
18:19 Moon passes the equator, to the northern hemisphere
19:03 First quarter moon
31 Wed 7.7 02:26 Neptune approaches closest to Venus (01°48.4')

Special Thanks to Shirakawa Astronomical Observatory


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