EXPLOREMY LIBRARY
Science
BBC Sky at Night

BBC Sky at Night September 2020

Sky at Night magazine is your practical guide to astronomy. Each issue features the world’s biggest and best night sky guide complete with star charts, observing tutorials and in-depth equipment reviews to ensure that amateur astronomers never miss those must-see events.

Country:
United Kingdom
Language:
English
Publisher:
Immediate Media Company London Limited
Frequency:
Monthly
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12 Issues

in this issue

2 min.
welcome

As we move into the new autumn season the days start to shorten noticeably and we amateur astronomers welcome the return of long dark nights. It’s the ideal time to discover more in the night sky and this issue will help you on your way to doing just that, whether it’s with the naked eye, a pair of binoculars or a telescope. On page 64, Scott Levine takes us on an easy naked-eye tour of the main constellations in September’s night sky – an ideal way to get your bearings among the glittering stars of the celestial sphere. Then on page 55, Steve Tonkin singles out 10 great targets to observe with binoculars – sparkling clusters and star clouds that look their best in the wide-field views that binoculars provide. Starting…

1 min.
sky at night – lots of ways to enjoy the night sky…

Television Find out what The Sky at Night team have been exploring in recent and past episodes on page 16 Online Visit our website for competitions, astrophoto galleries, observing guides and more Social media Follow us on Twitter, Facebook and Instagram for space news, astro images and website updates Podcasts Listen to our Radio Astronomy podcasts where the magazine team and guests discuss astro news Tablet/phone Get each month’s issue on your Apple or Android device, now with bonus image galleries eNewsletter The best targets to observe each week, delivered to your inbox. Visit bit.ly/skynewsletter Find out more at: www.skyatnightmagazine.com…

1 min.
this month’s contributors

Stuart Atkinson Astronomer & writer “I wrote this feature as children often ask me how we know what will happen to our Sun – they are amazed to learn it’s a star, then horrified to learn it’s going to die one day!” Stuart explores the life cycle of stars, page 26 Shaoni Bhattacharya Science journalist “I found it fascinating to learn just how stars go ‘gamma-ray burst’; this interview left me reeling at the thought that these explosions can blow the stuffing out of galaxies”. Shaoni meets an extragalactic star modeller, page 90 Scott Levine Astronomy blogger “I liked writing this month’s sky tour because I enjoy seeing the sky change with the seasons; it’s a chance to visit familiar stars and constellations.” Scott points out the highlights of autumn’s night sky, page 64…

1 min.
extra content online

Visit www.skyatnightmagazine.com/bonus-content/R4PLDQF/ to access this month’s selection of exclusive Bonus Content SEPTEMBER HIGHLIGHTS Interview: a new mission to Triton Planetary scientist Louise Prockter reveals her proposed mission to send a spacecraft to Neptune’s largest moon. Watch July’s episode of The Sky at Night The team explore the life and death of stars, including the latest news on Betelgeuse and how to do safe solar astronomy. Audiobook preview: The Science of Sci-Fi Are artificial gravity and time travel possible? Listen to two lectures from a new audio book on the science of sci-fi. The Virtual Planetarium Pete Lawrence and Paul Abel guide us through the best sights to see in the night sky this month.…

2 min.
a spiral with a soft centre

HUBBLE SPACE TELESCOPE, 2 JULY 2020 The fluffy spiral arms and the curiously large empty region at its heart are the signs of a sleepy galaxy in repose. NGC 2775, located 67 million lightyears away in the constellation of Cancer, has its furious period of star production long behind it, leaving a vacant centre where its concentrated reserves of gas were converted to stars long ago. The woolly, ill-defined spiral arms, across which are scattered millions of blue stars, are what give ‘flocculent’ type galaxies their name; in contrast to the distinct, continuous arms of grand design spirals. On the rocks CURIOSITY MARS ROVER, 6 JULY 2020 Curiosity captured this image with its Mastcam on a summer road trip that involved driving up its steepest incline yet. The rover has been scaling the 5km-high…

1 min.
comment

Short gamma-ray bursts (SGRBs) are fascinating objects, explosions bright enough to be seen on the other side of the visible Universe. Swift’s studies have helped to pin down the causes of these enigmatic events, and have set people wondering if they could help us solve the mystery of how fast the Universe is expanding. Our modern techniques – one involving the cosmic microwave background, and another supernovae – produce differing results. If SRGBs can be shown to be ‘standard candles’ then they can be used to measure distance, and hence the expansion rate. Objects capable of doing that, which are bright enough to be visible across more than 10 billion years of cosmic time would be valuable – and SGRBs may be the start. Chris Lintott co-presents The Sky at Night…