| # | Title | Status | Researcher | Start date | End date | Requested data types |
|---|---|---|---|---|---|---|
| 752 | Rare Outburst of Recurrent Nova RS Ophiuchi | Concluded | AAVSO | 2021-08-09 (UTC) | 2024-07-02 (UTC) | Photometry, Spectroscopy |
| 750 | T CrB photometry and spectroscopy requested for HST and XMM-Newton observations | Concluded | AAVSO | 2021-08-03 (UTC) | 2021-09-30 (UTC) | Photometry, Spectroscopy |
| 748 | Observations needed now for re-scheduled HST targets | Archived | AAVSO | 2021-07-21 (UTC) | 2021-07-23 (UTC) | Photometry |
| 747 | V627 Peg photometry and spectroscopy requested | Active | AAVSO | 2021-07-20 (UTC) | Ongoing | Spectroscopy, Photometry |
| 749 | Nova in Vulpecula: N Vul 2021 = TCP J20210770+2914093 | Active | AAVSO | 2021-07-16 (UTC) | Ongoing | Spectroscopy, Photometry |
| 746 | High-resolution spectroscopy and photometry requested for rho Cas study | Active | AAVSO | 2021-06-18 (UTC) | 2024-12-31 (UTC) | Spectroscopy, Photometry |
| 745 | AAVSO Alert Notice 745: Nova in Hercules: N Her 2021 = TCP J18573095+1653396 = ZTF19aasfsjq [V1674 Her] | Concluded | AAVSO | 2021-06-12 (UTC) | 2021-06-14 (UTC) | Photometry, Spectroscopy |
| 744 | V1117 Her observations requested | Active | AAVSO | 2021-06-08 (UTC) | Ongoing | Photometry |
| 743 | V603 Aql photometry and spectroscopy requested | Archived | AAVSO | 2021-05-11 (UTC) | 2021-06-30 (UTC) | Photometry |
| 742 | Alert Notice 742: V1405 Cas = N Cas 2021 brightening | Active | AAVSO | 2021-05-05 (UTC) | Ongoing | Spectroscopy, Photometry |
