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Work Flow for DSLR Photometry ?

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

2020 AAVSO online CHOICE courses

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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:

40,445,960 and Counting ...

Last Observation Received:

29 min 30 sec ago by YBA - Brad Young (US)

NQ PER Jan 13.1510 14.934V

Plot NQ PER light curve

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AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484

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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

From our Leadership

2020 AAVSO online CHOICE courses

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

Dennis Conti Honored

Pick a Star

We gratefully acknowledge support from the Friends of the AAVSO: