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Campaign on b Per eclipse - Alert Notice 688

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AAVSO Selected to Participate in Harvard Business School Association of Boston’s Community Action Partners Program

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President's letter December, 2019

Dennis Conti Honored

AAVSO observer Dennis Conti received the 2020 AAS Chambliss Amateur Achievement Award "for his outstanding observational, computational, and educational contributions to exoplanet studies."

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Variable Star Observations in Database:

40,474,689 and Counting ...

Last Observation Received:

21 min 19 sec ago by TUB - Vince Tuboly (HU)

S CMI Jan 21.7750 8.305V

Plot S CMI light curve

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Information For

Active forum topics

AAVSO Selected to Participate in Harvard Business School Association of Boston’s Community Action Partners Program

Are you an undergrad or grad student? Volunteer as an AAVSO Ambassador!

From our Leadership

Dennis Conti Honored

2020 AAVSO online CHOICE courses

Pick a Star

We gratefully acknowledge support from the Friends of the AAVSO: