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Welcome to American Association of Variable Star Observers Forum! :wave:
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0
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881
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July 16, 2024
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Boyce Astro course on spectroscopy
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0
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4
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April 9, 2026
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NGC 3516 Seyfert galaxy
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0
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10
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April 9, 2026
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New user on Vphot
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0
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4
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April 9, 2026
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Naked-eye detection of GRB 221009A prompt emission.
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0
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10
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April 9, 2026
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AAVSO member Elizabeth has been honored with an asteroid naming!
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12
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422
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April 9, 2026
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V0844 HER in Outburst?
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4
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95
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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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226
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April 9, 2026
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Request for observations: Q0957+561 (Twin Quasar) - A General Relativity “lab” for amateurs
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0
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52
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April 9, 2026
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Exposure time and Saturation
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2
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37
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April 8, 2026
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PEP Announcements
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22
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457
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April 8, 2026
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R Leo Halpha emission?
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4
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50
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April 7, 2026
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Flux to magnitudes
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3
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87
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April 8, 2026
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SeeVar - automated observatory
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12
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332
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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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41
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April 7, 2026
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Status Update from the AAVSO Smart Telescope Working Group
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92
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2536
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April 7, 2026
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Need advice on camera for slitless spectroscopy
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5
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65
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April 7, 2026
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Question on using astroimageJ
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16
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435
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April 6, 2026
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NGC 4151 with LISA spectrograph
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1
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58
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April 6, 2026
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PSF fitting software
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31
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821
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April 5, 2026
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Observing Campaigns #875: Monitoring T CrB
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157
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14269
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April 4, 2026
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Last Call For "For Sale" Items to be Brought to NEAF!
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0
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47
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April 4, 2026
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Gaia DR3 variables: Periods
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19
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390
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April 2, 2026
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The Book on 10 Experiments in Astronomical Spectroscopy for Amateurs
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4
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109
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April 2, 2026
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New WebObs Shows Reject when well within bounds
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1
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39
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April 2, 2026
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Help Observe the Moon during Artemis II (citizen science opportunity)
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0
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54
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April 1, 2026
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Difference in spectrum HD42477/HR2191
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1
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53
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April 1, 2026
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Getting started with observing campaigns
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2
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45
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April 1, 2026
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Help Requested for YZ CMi
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9
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138
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March 31, 2026
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Spectroscopy SIG Targets April-June
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0
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46
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March 31, 2026
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