Nova in Cassiopeia
Page updated 17 April 2021
A nova has appeared in the constellation of Cassiopeia. Novae are stars that suddenly undergo an increase in brightness of typically over a thousand-fold, so what looks like a new star appears. In this case, the nova is 8th magnitude, which is visible using binoculars. But while the star was expected to fade, it has remained almost constant in brightness.
Get to know your stars
Want to learn the spring sky in less than ten minutes? Take a look at our new video, recorded in a real sky, showing the spring sky as you’ll see it during late March into April as seen from the UK.
Meteorites from the 28 February fall recovered
About 300 grams of meteorites have been collected in Gloucestershire following the fireball of 28 February, which was widely reported from around the UK and even from the Netherlands. And…
Why you should join the SPA . . . and Vicky’s latest live video!
Covid-19 and the SPA
SPA meetings, and our Pop Astro Live shows, are being held online until further notice. Please check the meetings page for latest status of all events.
The night sky in April
Here is a map of the sky as it will appear from the latitude of London (51° 50′) this month, at 22h UT (GMT).
Choosing a telescope
If you’re interested in astronomy, it stands to reason that you need a telescope, and the bigger the better. But for most of us, there’s a lot of research to…
Our observing sections
Whatever your interests, we’ve a section to suit you. Get expert advice and send in your own observations.
Our weekend courses
The SPA runs an annual weekend course where members can observe and learn together.
How to start stargazing
Learning the sky might seem tricky at first. There are so many stars, and unlike visiting a new town or city, the stars keep on moving around! But don’t give up! With…
Meetings and Events
The SPA usually holds regular Saturday meetings every three months in London, though these are currently being broadcast online instead due to the coronavirus.