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Welcome to American Association of Variable Star Observers Forum! :wave:
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0
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890
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July 16, 2024
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Boyce Astro course on spectroscopy
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2
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96
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April 16, 2026
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Smart Telescope User Experience Lead - Volunteer Opportunity
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3
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156
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April 16, 2026
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Gaia20ehk: A Candidate YSO with Planetesimal Collision
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0
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10
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April 16, 2026
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Just Starting this VSO endeavor
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4
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57
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April 16, 2026
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Newbie sketching and counting sunspots - question about orientation of sketch
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11
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46
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April 15, 2026
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Remote spectroscopy
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7
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280
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April 15, 2026
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Another New Person with a few questions!
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8
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281
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April 15, 2026
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Request for observations: Q0957+561 (Twin Quasar) - A General Relativity “lab” for amateurs
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7
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214
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April 15, 2026
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Gaia DR3 RR Lyrae (RRab, RRc): Top 1000 Single-Pulsation CMD Loops [RP vs BP-RP] - Animated
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0
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28
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April 15, 2026
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Great online course covers a lot of science and astronomical computing
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1
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61
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April 15, 2026
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NGC 4151 with LISA spectrograph
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2
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93
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April 14, 2026
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NGC 3516 Seyfert galaxy
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1
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50
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April 14, 2026
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Observing Campaigns #875: Monitoring T CrB
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159
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14466
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April 14, 2026
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Spectroscopy SIG Meeting Recording Available
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0
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24
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April 14, 2026
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Status Update from the AAVSO Smart Telescope Working Group
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93
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2652
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April 12, 2026
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Exposure time and Saturation
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3
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121
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April 12, 2026
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V0844 HER in Outburst?
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5
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129
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April 12, 2026
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PEP Announcements
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23
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505
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April 11, 2026
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The Book on 10 Experiments in Astronomical Spectroscopy for Amateurs
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8
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179
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April 11, 2026
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R Leo Halpha emission?
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5
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111
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April 11, 2026
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A recent paper on OY Car, an eclipsing SU-UMa type CV that uses AAVSO data
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0
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38
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April 11, 2026
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Flux to magnitudes
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8
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142
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April 10, 2026
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RY Leo spectrum 09-04-2026
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0
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45
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April 10, 2026
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AAVSO member Elizabeth has been honored with an asteroid naming!
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13
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467
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April 10, 2026
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New user on Vphot
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2
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36
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April 10, 2026
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Naked-eye detection of GRB 221009A prompt emission.
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0
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29
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April 9, 2026
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CV target suggestions for spring
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8
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246
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April 9, 2026
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SeeVar - automated observatory
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12
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369
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April 8, 2026
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Spectroscopy SIG Monthly Meeting Wed Apr 8 2300 UTC
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0
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56
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April 7, 2026
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