Overview
The American Association of Variable Star Observers (AAVSO) observing campaigns are coordinated observational efforts focused on specific astronomical objects, particularly variable stars. These campaigns invite amateur and professional astronomers worldwide to contribute observations, leading to a comprehensive dataset that can yield substantial scientific results.
Active Campaigns
| # | Title | Principal Investigator | Start date | End date | Requested data types |
|---|---|---|---|---|---|
| 462 | Monitoring of J1407 for next extrasolar ring system transit | HQ, A. | 2012-06-25 (UTC) | Ongoing | Photometry |
| 492 | Nova Centauri 2013 = PNV J13544700-5909080 [V1369 Cen] | HQ, A. | 2013-12-03 (UTC) | 2025-09-08 (UTC) | Spectroscopy |
| 503 | Request for regular monitoring of the symbiotic variable RT Cru | HQ, A. | 2014-08-06 (UTC) | 2027-08-31 (UTC) | Photometry |
| 631 | Coverage requested for current outburst of AG Dra | HQ, A. | 2018-04-24 (UTC) | Ongoing | Photometry |
| 633 | Nova outburst of V392 Per = TCP J04432130+4721280 | HQ, A. | 2018-04-29 (UTC) | Ongoing | Spectroscopy, Photometry |
| 634 | Nightly monitoring requested for V1280 Sco = N Sco 2007 | HQ, A. | 2018-05-11 (UTC) | Ongoing | Photometry |
| 648 | Semiregular variable reclassified as symbiotic: outburst of ASASSN-V J195442.95+172212.6 = Vend47 (Sge) | HQ, A. | 2018-08-08 (UTC) | Ongoing | — |
| 684 | Photometry requested for campaign on V1491 Cyg | HQ, A. | 2019-11-01 (UTC) | 2040-11-30 (UTC) | Photometry |
| 691 | Request for immediate photometric monitoring of the fading star ASASSN-V J060000.76-310027.83 | HQ, A. | 2019-10-25 (UTC) | Ongoing | Photometry |
| 717 | Flaring of blazar S5 1803+78 continues | HQ, A. | 2020-08-17 (UTC) | Ongoing | Photometry |
| 722 | Alert Notice 722: N Sgr 2020 No. 4 = PNV J17545999-2122401 [V6593 Sgr] | HQ, A. | 2020-10-02 (UTC) | Ongoing | Spectroscopy, Photometry |
| 724 | VY Aqr observing campaign | HQ, A. | 2020-11-09 (UTC) | Ongoing | Spectroscopy, Photometry |
| 730 | Spectroscopy and photometry requested for SS Cyg | HQ, A. | 2019-10-01 (UTC) | Ongoing | Spectroscopy, Photometry |
| 735 | Nova in Cassiopeia: N Cas 2021 | HQ, A. | 2021-03-19 (UTC) | Ongoing | Spectroscopy, Photometry |
| 738 | R Aqr monitoring needed in support of Chandra and HST observations | HQ, A. | 2021-04-05 (UTC) | Ongoing | Spectroscopy, Photometry |
| 739 | Nova in Sagittarius: N Sgr 2021 No. 2 | HQ, A. | 2021-04-04 (UTC) | Ongoing | Spectroscopy, Photometry |
| 742 | Alert Notice 742: V1405 Cas = N Cas 2021 brightening | HQ, A. | 2021-05-05 (UTC) | Ongoing | Spectroscopy, Photometry |
| 744 | V1117 Her observations requested | HQ, A. | 2021-06-08 (UTC) | Ongoing | Photometry |
| 747 | V627 Peg photometry and spectroscopy requested | HQ, A. | 2021-07-20 (UTC) | Ongoing | Spectroscopy, Photometry |
| 749 | Nova in Vulpecula: N Vul 2021 = TCP J20210770+2914093 | HQ, A. | 2021-07-16 (UTC) | Ongoing | Spectroscopy, Photometry |
| 771 | Alert Notice 771: V1117 Her in deep fade again | HQ, A. | 2022-03-09 (UTC) | 2025-10-31 (UTC) | Photometry |
| 773 | EX Lup outburst coverage requested | HQ, A. | 2022-03-19 (UTC) | 2025-10-31 (UTC) | Spectroscopy, Photometry |
| 797 | Monitoring requested for V730 Cep | HQ, A. | 2022-10-28 (UTC) | 2025-08-31 (UTC) | Photometry |
| 813 | Nova in Sagittarius: N Sgr 2023 = TCP J17562787-1714548 | HQ, A. | 2023-02-20 (UTC) | 2026-10-13 (UTC) | Spectroscopy, Photometry |
| 826 | Supernova in M101 - SN 2023ixf in NGC 5457 | HQ, A. | 2023-05-19 (UTC) | Ongoing | — |