February. 1997

March 1997

April 1997


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Day Moonage Phenomenon (JST)
1 Sat 21.5 R-Cas is at maximum brightness (Period 430 days, Mag:4.7-13.5)
04:21 Delta-Lib is at minimum brightness
2 Sun 22.5 09:24 Mercury passes 00o51'.1 south of Venus
09:40 Moon passes 07o53'.5 south of Pluto
18:37 Last quarter moon
3 Mon 23.5 01:52 Venus is closest to Mercury (00o46'.3)
19:-- Heliocentric latitude of Mercury is most at south
4 Tue 24.5 03:13 Moon is at south most (Decl.:-18o09'.6)
5 Wed 25.5 22:04 Longitude of the sun reaches 345 degrees
23:12 Algol is at minimum brightness
6 Thu 26.5 T-Col is at maximum brightness (Period 227 days, Mag:6.6-12.7)
04:50 Moon passes 04o11'.5 north of Neptune
18:02 Moon passes 04o49'.5 north of Uranus
23:03 Moon passes 04o30'.7 north of Jupiter
7 Fri 27.5 V-Cas is at maximum brightness (Period 229 days, Mag:6.9-13.4)
8 Sat 28.5 03:54 Delta-Lib is at minimum brightness
18:-- Moon is near to the Earth most (357,763km, Dia.:33'24")
20:02 Algol is at minimum brightness
9 Sun 29.5 Partial solar eclipse in Japan
01:37 Moon passes 03o04'.3 north of Venus
08:08 Moon passes 03o07'.4 north of Mercury
10:15 New Moon (Solar eclipse in Mongolia and Siberia)
10 Mon 1.1 05:06 Moon passes equator, to northern hemisphere
14:49 Pluto is at apogee (R.A.:16h23.8m)
17:50 Moon passes 01o25'.7 north of Saturn
11 Tue 2.1 06:17 Mercury is at exferrior conjunction (01o48'.2 south of Sun)
12 Wed 3.1 09:52 Mercury is closest to Sun (01o32'.0 )
13 Thu 4.1 S-UMa is at maximum brightness (Period 285 days, Mag:7.4-12.7)
R-Vir is at maximum brightness (Period 145 days, Mag:6.1-12.1)
14 Fri 5.1 12:-- Comet 46P/Wirtanen passses perihelion (Period 5.46 years)
15 Sat 6.1 03:27 Delta-Lib is at minimum brightness
16 Sun 7.1 09:06 First quarter moon
18:32 Moon is at north most (Decl.:+18o08'.4)
17 Mon 8.1 Higan no iri
11:-- Heliocentric latitude of Venus is most at south
18 Tue 9.1 20:27 Mars is at opposition (Mag:-1.3, Dia.:14".2)
20 Thu 11.1 National Holiday in Japan (Syunbun no hi)
11:57 Saturn is closest to Mercury (01o23'.2)
22:55 Longitude of the sun reaches 0 degrees
21 Fri 12.1 01:50 Mars is closest to Earth (0.6593817AU, 98,640,000km, Mag:-1.2, Dia.:14".2)
09:-- Moon is far from the Earth most (405,964km, Dia.:29'26")
11:58 Mercury passes 02o06'.4 north of Saturn
22 Sat 13.1 03:01 Delta-Lib is at minimum brightness
23 Sun 14.1 22:33 Moon passes 04o08'.7 south of Mars
24 Mon 15.1 07:16 Moon passes equator, to southern hemisphere
13:45 Full Moon (Partial lunar eclipse in North America)
27 Thu 18.1 06:-- Comet 117P/Helin-Roman-Alu 1 passses perihelion (Period 9.57 years)
28 Fri 19.1 21:46 Algol is at minimum brightness
29 Sat 20.1 S-CMi is at maximum brightness (Period 333 days, Mag:6.6-13.2)
R-Sgr is at maximum brightness (Period 269 days, Mag:6.7-12.8)
02:34 Delta-Lib is at minimum brightness
15:17 Moon passes 08o02'.1 south of Pluto
31 Mon 22.1 09:47 Moon is at south most (Decl.:-18o09'.2)
17:53 Venus is at exferrior conjunction (01o25'.9 south of Sun)
21:32 Saturn is closest to Venus (00o52'.3)

Special Thanks to Shirakawa Astronomical Observatory

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