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Recent Items: Meteor 12-18-2011     Aurora 10-24-2011     Orionid Meteor 02:51:03 Oct. 21, 2011     All Sky Cam Time Lapse 10-15-11     ISS Passage Time Lapse 10-16-11     PARI Sky Time Lapse 10-30-10     International Space Station over PARI 11-13-10

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PARI Sky Events: Planets *Stars Meteor Showers Solar Eclipses Lunar Eclipses Comets (More...)

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Celestial News: Lyrid Meteor Shower: Lasting for about 10 days and peaking on Friday morning, April 22nd, 2012. Meteors result from particles of dust causing the atmosphere to glow as the particles enter the upper atmosphere of the Earth. The Lyrid Meteors, or “Lyrids,” are associated with Comet Thatcher first discovered in 1861. As this comet revolves around the Sun every 415 years, it gives off gases and dust particles due to the heat of the Sun. Observations of this shower date back for at least 2600 years, which is longer than any other meteor shower.

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Star of the Month: Sirius - Rising in the evening south east sky, Sirius is the brightest star in the sky with a visual magnitude of -1.46. Also known as the "Dog Star" located in Canis Major (Big Dog). The morning rising of Sirius marked the flooding of the Nile in Ancient Egypt and the "Dog Days" of summer for the Ancient Greeks. (More...)

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Sky Classroom: Educational material about astronomy and the sky. (Go to Class)

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PARI Sky

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Recent Images

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Rank Magnitude Bayer designation Proper name Distance (ly) Spectral class Season   0.000−26.74   Sun 0.000 016 G2 V 1 0.001−1.46 α CMa Sirius 0008.6 A1 V 2 0.003−0.72 α Car Canopus 0310 F0 Ia 3 0.003−0.04 var α Boo Arcturus 0037 K1.5 III 4 0.004−0.01 α1 Cen Alpha Centauri A 0004.4 G2 V 5 0.03 α Lyr Vega 0025 A0 V 6 0.12 β Ori Rigel 0770 B8 Iab 7 0.34 α CMi Procyon 0011 F5 IV-V 8 0.42 var α Ori Betelgeuse 0640 M2 Iab 9 0.50 α Eri Achernar 0140 B3 Vpe 10 0.60 β Cen Beta Centauri (Hadar, Agena) 0530 B1 III 11 0.71 α1 Aur Capella A 0042 G8 III 12 0.77 α Aql Altair 0017 A7 V 13 0.85 var α Tau Aldebaran 0065 K5 III 14 0.96 α2 Aur Capella B 0042 G1 III 15 1.04 α Vir Spica 0260 B1 III-IV / B2 V

Rank Magnitude Bayer designation Proper name Distance (ly) Spectral class Season 16 1.09 α Sco Antares 0600 M1.5 Iab-b 17 1.15 β Gem Pollux 0034 K0 IIIb 18 1.16 α PsA Fomalhaut 0025 A3 V 19 1.25 α Cyg Deneb 1,550 A2 Ia 20 1.30 β Cru Mimosa 0350 B0.5 IV 21 1.33 α2 Cen Alpha Centauri B 0004.4 K1 V 22 1.35 α Leo Regulus 0077 B7 V 23 1.40 α1 Cru Acrux A 0320 B1 V 24 1.51 ε CMa Adara 0430 B2 Iab 25 1.62 λ Sco Shaula 0700 B1.5-2 IV+ 26 1.63 γ Cru Gacrux 0088 M4III 27 1.64 γ Ori Bellatrix 0240 B2 III 28 1.68 β Tau El Nath 0130 B7 III 29 1.68 β Car Miaplacidus 0110 A2 IV 30 1.70 ε Ori Alnilam 1,300 B0 Iab