What's new

2020-08-11: multiple objects can now be plotted
2020-07-18: added facility to look up solar system objects
2020-07-11: added calculation of heliocentric velocity correction
2020-07-04: fixed coordinates of the AAO, removed duplicate entry under "Siding Spring"
2020-07-04: added Skinakas, Ishigaki and Okayama observatories
2020-06-29: added Dwingeloo Radio Telescope
2020-06-28: added link to SIMBAD page for objects identified in the field
2020-06-27: fixed incorrect coordinates of Haleakala Observatory
2020-04-24: implemented night mode. Press d on a visibility page to try it.
2020-02-21: added National Observatories of Chile and Colombia
2020-02-08: added time conversions, live and hourly on the selected night
2020-02-07: Spanish and French language versions now available
2020-02-05: added list of observatories
2020-02-05: added display of lunar phase
2020-02-02: added Mullard Radio Astronomy Observatory
2020-02-01: added light pollution information
2020-01-31: major rewrite of underlying code to enable planned upgrades

2019-12-23: added Gordon Southam Observatory
2019-12-13: added Pulkovo Observatory
2019-12-04: added Wise and Ali observatories
2019-11-25: added Biruni Observatory
2019-11-06: added Wendelstein Observatory
2019-10-30: closed survey. The answers were very useful - thanks!
2019-10-28: added some Gemini instruments to FOV list
2019-10-27: added Vienna and Vidojevica observatories, added La Silla instruments to FOV list
2019-10-26: added facility to show instrument fields of view
2019-10-19: added Nice observatory
2019-10-17: UI improvements
2019-10-16: added observatories: Crimea, Potsdam, Girawali, Heidelberg, Peyton, Indian Astronomical Observatory
2019-10-15: opened user survey
2019-08-25: added Pic du Midi observatory
2019-06-28: added Molonglo
2019-06-22: added Halley's Mount, SMA and LIGO Hanford and Livingston stations
2019-06-18: added Pico dos Dias
2019-06-01: added Observatório Valongo
2019-05-21: night indicated on world map
2019-05-19: added Mount Abu
2019-05-14: added MeerKAT and SAO-RAS
2019-05-13: added current weather at the selected location from openweathermap.org, added Royal Observatory Edinburgh
2019-04-02: added APEX
2019-03-11: added Murchison
2019-03-07: added Mount John Observatory
2019-03-03: added azimuth of object to daily chart
2019-01-15: added Olin Science Center