Tonight, June 15th, there’s going to be a total lunar eclipse that’s visible from every continent except North America (sorry guys!). The Moon will spend 100 minutes fully engulfed in Earth’s shadow, making this the longest lunar eclipse in nearly 11 years. The appearance of the eclipse might be affected by exhaust from Chile’s erupting Puyehue-Cordón Caulle volcano, which is … Read the rest of this article
Total Lunar Eclipse Tonight (June 15)
June 15, 2011
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The Partial Solar Eclipse of January 4, 2011
January 3, 2011
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A partial solar … Read the rest of this article
AAVSO Alert Notice 401:
Monitoring of EX Hya and DQ Her
August 13, 2009
Monitoring of EX Hya and DQ Her
August 13, 2009
Kunegunda Belle, Don Hoard and Steve Howell are observing two cataclysmic variables with Spitzer during the next couple of weeks. They request ground-based light curves spanning the observation intervals so that they can identify the state each variable is in during the Spitzer visits.
1. EX … Read the rest of this article
AAVSO Alert Notice 398:
Eclipse of epsilon Aurigae
July 10, 2009
Eclipse of epsilon Aurigae
July 10, 2009
The bright, long-period, eclipsing binary star epsilon Aurigae is predicted to begin its next eclipse late July or early August of 2009. The AAVSO is participating in a global campaign to record this eclipse as part of the International Year of Astronomy 2009 celebrations, organized by the Citizen Sky … Read the rest of this article
Penumbral Lunar Eclipse: February 9 2009
February 1, 2009
This month sees a penumbral eclipse of the Moon. It is the first of four eclipse this year (penumbral eclipses also occur in July and August, and there’s a Partial eclipse in December). The eclipse details are shown below. Times are in UT. The diagram (slightly reduced in size) was created with LunarPhase Pro.
In a Penumbral Eclipse the … Read the rest of this article
AAVSO Alert Notice 351Campaign for a New Eclipsing Cepheid
June 8, 2007
Name:
TYC 1031 01262 1
ASAS 182611+1212.6
1821+12B (Harvard Designation)
ASAS182612 (AAVSO name)
Discovered by:
Pojmanski, G., Pilecki, B., Szczygiel, D. 2005, AcA 55, 275 and Antipin, S.V., Sokolovsky, K. V. and Ignatieva, T. I. 2007, astro-ph/0705.0605
Position (from Sonoita Research Observatory, UCAC2): Read the rest of this article
18:26:11.50 +12:12:35.0 (+/- 100mas)…
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The Sun And Aurora Now
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
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Aurora Oval
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