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3 Thu Europa eclipsed 12:38 a.m., occultation ends 4:00 a.m.
4 Fri Beta Lyrae at minimum 1:59 a.m. Eclipsing binary drops from mag. 3.4 to 4.3 in about 3 days. (Period is
currently 12.939195 days. There is a secondary minimum of mag. 3.8.) Compare with Gamma Lyrae: mag. 3.24.
Star Party at Glacier Point, Yosemite.
Europa shadow transit ends 10:26 p.m., transit ends 10:57 p.m.
5 Sat Io eclipsed 2:00 a.m., occultation ends 4:31 a.m.
Star Party at Glacier Point, Yosemite.
Io shadow transit 11:09 p.m. to 1:24 a.m., transit 11:25 p.m. to 1:39 a.m. (6th).
6 Sun Full Moon (the "Harvest Moon") 4:21 a.m. PDT. Penumbral lunar eclipse 2:14 to 6:06 a.m. Maximum
(penumbral mag. 0.840) 4:10 a.m. Look for mild shading on Moon's north edge.
Star Party at Glacier Point, Yosemite.
Jupiter 0.5° north of Moon (occulted in Argentina).
Io occultation ends 10:57 p.m.
7 Mon Labor Day.
Ganymede shadow transit 8:40 to 11:56 p.m., transit 9:37 p.m. to 12:39 a.m. (8th)
9 Wed Saturn 2° north of Moon.
10 Thu Mu Ceti (double star, mag. 4.4) reappears from occultation by Moon 2:50 a.m.
Europa eclipsed 3:16 a.m.
11 Fri Tri-Valley Stargazers meeting 7:30 p.m. Unitarian Universalist Church in Livermore,
1893 N. Vasco Road, Livermore. (3/4 mile north of I-580).
Coptic New Year (1716 in Egypt, 1992 in Ethiopia).
Europa shadow transit 10:19 p.m. to 1:01 a.m., transit 10:33 p.m. to 1:11 a.m.
Io eclipsed 3:54 a.m. (12th).
12 Sat Open House at Hidden Hill Observatory. Meet at the corner of Mines and Tesla Roads, Livermore, at 6:00 p.m.
Aldebaran 0.3° south of Moon (occulted in southeastern U.S.).
Last Quarter Moon 6:58 p.m.
13 Sun Io shadow transit 1:04 to 3:19 a.m., transit 1:09 to 3:23 a.m. Io eclipsed 10:23 p.m. to 12:40 a.m. (14th).
14 Mon Io shadow transit ends 9:48 p.m., transit ends 9:49 p.m.
15 Tue Jupiter at opposition (49.7" diam.).
Ganymede shadow transit 12:41 to 3:57 a.m., transit 12:52 to 3:55 a.m.
16 Wed Asteroid 2 Pallas (mag. 8.3) at opposition.
Callisto eclipsed 9:31 to 11:57 p.m.
17 Thu Beta Lyrae at minimum 12:31 a.m.
Mars 2° north of Moon.
TVS Planning Meeting 7:00 p.m. Round Table Pizza, 1540 First St., Livermore
(in Orchard Supply/Longs/Safeway shopping center).
18 Fri Regulus 0.6° north of Moon (occulted in South America).
Asteroid 1991 RB near-Earth flyby (0.0401 AU).
Wide Field Infrared Explorer (WIRE) launch scheduled.
19 Sat Excellent weekend for observing.
Europa transit 12:47 to 3:24 a.m., shadow transit 12:55 to 3:36 a.m.
Look for the Zodiacal Light in the east before dawn over the next two weeks.
20 Sun Io transit 2:52 to 5:07 a.m., shadow transit 2:59 to 5:14 a.m.
New Moon 10:01 a.m.
Europa eclipse ends 9:56 p.m.
(Continued on Page 5)
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