Part I. New Developments in the Last Five Years: 1. First Results of the SkyMapper Transient Survey; 2. The BVIT: from flare stars to the search for ET; 3. Gaia Alerts - an all-sky transient survey; 4. Probing galactic black holes with microlensing with Gaia and OGLE; 5. Fast radio bursts: from multi-beam receivers to interferometers; 6. The space-based photometry revolution; 7.

The space-based photometry revolution; 8. Time-domain astroinformatics; Part II. Explosive Transients: 9. Fast radio transients: from pulsars to fast radio bursts; 10. Forming the progenitors of explosive stellar transients; 11. Discovering radio transients using ''triggered'' and ''targeted'' observations; 12. Multi-wavelength jet studies in cataclysmic variables and super luminous Supernovæ; 13. Early blue excess from the Type Ia Supernova 2017cbv; 14.

Understanding the Galaxy; 15. The electromagnetic counterpart of the gravitational wave source GW170817; 16. Recent results from a high-resolution spectroscopic follow-up survey of classical Novæ; 17. A dust-enshrouded tidal disruption event in a luminous infared Galaxy; 18. The High-Cadence Transient Survey (HiTS): early supernova light-curves; Part III. Long-Term and Stellar Variability: 18. Progress of thical Novæ; 17. A dust-enshrouded tidal disruption event in a luminous infared Galaxy; 18.

The High-Cadence Transient Survey (HiTS): early supernova light-curves; Part III. Long-Term and Stellar Variability: 18. Progress of the Chinese plate-digitizing project; 19. Pulsation, rotation and flares in A stars; 20. The K2 RR Lyrae Survey; 21. Photometric variability of luminous blue variable stars on different time scales; 22. The Hubble Catalog of Variables (HCV); 23. Variability, pulsations and mass loss of evolved stars; 24.

Measuring and decoding gravito-inertial modes in intermediate- and high-mass stars; 25. Strong shear and high-amplitude activity cycle in a metal-rich solar analogue; 26. Periodic variability on time-scales of decades to centuries in magnetic Ap stars: challenges and strategies; 27. Monitoring period variations of variable stars using precise photometric surveys; Part IV. High Energy: 28. Time-domain studies with Astrosat; 29. High-energy transients: thermonuclear (Type-I) X-Ray bursts; 30. Transient X-ray binaries in the Magellanic Clouds and Milky Way; 31.

A new population of highly energetic nuclear transients; 32. The deeper wider faster programme: chasing the fastest bursts in the universe; 33. On the problem of standardization in time-domain photometry; 34. Discovery and opportunity in the X-Ray time domain; 35. X-Ray Transients observed with MAXI; 36. X-Ray transients in the SRG/eROSITA All-Sky Survey; 37. LMC X-4: different types of long-term variability; 38. The future of AGN variability studies; Part V.

Can Our Techniques Meet the Challenges?: 39. Recognition of rare and peculiar temporal phenomena from LSST alert streams; 40. ANTARES: time-domain discovery in the Era of LSST; 41. Life beyond PTF; 42. Deep-learning the time domain; 43. Time-domain instrumentation at ESO; 44. The SALT transient programme; 45. OCTOCAM - a new workhorse instrument for transient follow-up at Gemini-S; 46.

High-time-resolution astrophysics using the Thai 2.4-m Telescope with ULTRASPEC; 47. The Large Synoptic Survey Telescope: overview and update; 48. The Trans-Neptunian Automated Occultation Survey (TAOS II); 49. TESS science and follow-up in the Southern Hemisphere; 50. Unlocking the Universe with Astroinformatics; 51. Challenges and opportunities for machine learning in time-domain astronomy; 52. MeerLICHT: MeerKAT''s Optical Eye; 53.

Symposium 339 summary; Workshop reports; Poster papers; Poster summaries; Author index.ical Novæ; 17. A dust-enshrouded tidal disruption event in a luminous infared Galaxy; 18. The High-Cadence Transient Survey (HiTS): early supernova light-curves; Part III. Long-Term and Stellar Variability: 18. Progress of the Chinese plate-digitizing project; 19. Pulsation, rotation and flares in A stars; 20. The K2 RR Lyrae Survey; 21.

Photometric variability of luminous blue variable stars on different time scales; 22. The Hubble Catalog of Variables (HCV); 23. Variability, pulsations and mass loss of evolved stars; 24. Measuring and decoding gravito-inertial modes in intermediate- and high-mass stars; 25. Strong shear and high-amplitude activity cycle in a metal-rich solar analogue; 26. Periodic variability on time-scales of decades to centuries in magnetic Ap stars: challenges and strategies; 27. Monitoring period variations of variable stars using precise photometric surveys; Part IV. High Energy: 28.

Time-domain studies with Astrosat; 29. High-energy transients: thermonuclear (Type-I) X-Ray bursts; 30. Transient X-ray binaries in the Magellanic Clouds and Milky Way; 31. A new population of highly energetic nuclear transients; 32. The deeper wider faster programme: chasing the fastest bursts in the universe; 33. On the problem of standardization in time-domain photometry; 34. Discovery and opportunity in the X-Ray time domain; 35. X-Ray Transients observed with MAXI; 36.

X-Ray transients in the SRG/eROSITA All-Sky Survey; 37. LMC X-4: different types of long-term variability; 38. The future of AGN variability studies; Part V. Can Our Techniques Meet the Challenges?: 39. Recognition of rare and peculiar temporal phenomena from LSST alert streams; 40. ANTARES: time-domain discovery in the Era of LSST; 41. Life beyond PTF; 42. Deep-learning the time domain; 43.

Time-domain instrumentation at ESO; 44. The SALT transient programme; 45. OCTOCAM - a new workhorse instrument for transient follow-up at Gemini-S; 46. High-time-resolution astrophysics using the Thai 2.4-m Telescope with ULTRASPEC; 47. The Large Synoptic Survey Telescope: overview and update; 48. The Trans-Neptunian Automated Occultation Survey (TAOS II); 49. TESS science and follow-up in the Southern Hemisphere; 50.

Unlocking the Universe with Astroinformatics; 51. Challenges and opportunities for machine learning in time-domain astronomy; 52. MeerLICHT: MeerKAT''s Optical Eye; 53. Symposium 339 summary; Workshop reports; Poster papers; Poster summaries; Author index. Transient X-ray binaries in the Magellanic Clouds and Milky Way; 31. A new population of highly energetic nuclear transients; 32. The deeper wider faster programme: chasing the fastest bursts in the universe; 33. On the problem of standardization in time-domain photometry; 34.

Discovery and opportunity in the X-Ray time domain; 35. X-Ray Transients observed with MAXI; 36. X-Ray transients in the SRG/eROSITA All-Sky Survey; 37. LMC X-4: different types of long-term variability; 38. The future of AGN variability studies; Part V. Can Our Techniques Meet the Challenges?: 39. Recognition of rare and peculiar temporal phenomena from LSST alert streams; 40. ANTARES: time-domain discovery in the Era of LSST; 41.

Life beyond PTF; 42. Deep-learning the time domain; 43. Time-domain instrumentation at ESO; 44. The SALT transient programme; 45. OCTOCAM - a new workhorse instrument for transient follow-up at Gemini-S; 46. High-time-resolution astrophysics using the Thai 2.4-m Telescope with ULTRASPEC; 47. The Large Synoptic Survey Telescope: overview and update; 48.

The Trans-Neptunian Automated Occultation Survey (TAOS II); 49. TESS science and follow-up in the Southern Hemisphere; 50. Unlocking the Universe with Astroinformatics; 51. Challenges and opportunities for machine learning in time-domain astronomy; 52. MeerLICHT: MeerKAT''s Optical Eye; 53. Symposium 339 summary; Workshop reports; Poster papers; Poster summaries; Author index.tic Survey Telescope: overview and update; 48. The Trans-Neptunian Automated Occultation Survey (TAOS II); 49.

TESS science and follow-up in the Southern Hemisphere; 50. Unlocking the Universe with Astroinformatics; 51. Challenges and opportunities for machine learning in time-domain astronomy; 52. MeerLICHT: MeerKAT''s Optical Eye; 53. Symposium 339 summary; Workshop reports; Poster papers; Poster summaries; Author index.lem of standardization in time-domain photometry; 34. Discovery and opportunity in the X-Ray time domain; 35. X-Ray Transients observed with MAXI; 36.

X-Ray transients in the SRG/eROSITA All-Sky Survey; 37. LMC X-4: different types of long-term variability; 38. The future of AGN variability studies; Part V. Can Our Techniques Meet the Challenges?: 39. Recognition of rare and peculiar temporal phenomena from LSST alert streams; 40. ANTARES: time-domain discovery in the Era of LSST; 41. Life beyond PTF; 42. Deep-learning the time domain; 43.

Time-domain instrumentation at ESO; 44. The SALT transient programme; 45. OCTOCAM - a new workhorse instrument for transient follow-up at Gemini-S; 46. High-time-resolution astrophysics using the Thai 2.4-m Telescope with ULTRASPEC; 47. The Large Synoptic Survey Telescope: overview and update; 48. The Trans-Neptunian Automated Occultation Survey (TAOS II); 49. TESS science and follow-up in the Southern Hemisphere; 50.

Unlocking the Universe with Astroinformatics; 51. Challenges and opportunities for machine learning in time-domain astronomy; 52. MeerLICHT: MeerKAT''s Optical Eye; 53. Symposium 339 summary; Workshop reports; Poster papers; Poster summaries; Author index.ical Novæ; 17. A dust-enshrouded tidal disruption event in a luminous infared Galaxy; 18. The High-Cadence Transient Survey (HiTS): early supernova light-curves; Part III. Long-Term and Stellar Variability: 18.

Progress of the Chinese plate-digitizing project; 19. Pulsation, rotation and flares in A stars; 20. The K2 RR Lyrae Survey; 21. Photometric variability of luminous blue variable stars on different time scales; 22. The Hubble Catalog of Variables (HCV); 23. Variability, pulsations and mass loss of evolved stars; 24. Measuring and decoding gravito-inertial modes in intermediate- and high-mass stars; 25. Strong shear and high-amplitude activity cycle in a metal-rich solar analogue; 26.

P.