Cygnus the Swan is a constellation in the northern hemisphere and one of the most prominent and easily recognisable star patterns in the summer and autumn night sky.
Cygnus was among the first 48 constellations compiled by the 2nd century astrologer and astronomer Ptolemy, and remains one of the official 88 constellations today.
It's perhaps most notable for containing the Northern Cross asterism, and its bright star Deneb is both the tail of the swan, but also one of the stars in the asterism known as the Summer Triangle (one of our favourite summer constellations and asterisms).
The Cygnus and Lyra constellations. Credit: Bernhard Hubl / CCDGuide.com
And Cygnus made the news in 2022 when it was announced that an exoplanet named Wolf 1069 b, a potentially habitable Earthlike exoplanet, was discovered just 40 lightyears away within the constellation.
Mosaic of the Cygnus constellation in H-alpha by André van der Hoeven, HI-Ambacht, The Netherlands/Bleialf, Germany. Equipment: Canon 100mm F2.0 lens, SXV-H9 CCD, NEQ-6 mount
Below is a selection of images of Cygnus and deep-sky objects found within the constellation, captured by BBC Sky at Night Magazine readers and astrophotographers.
Cygnus Wide Field by Tom Howard, Crawley, Sussex, UK. Equipment: Nikon D7000, Nikkor 35mm lens, EQ6 mount.Nebulosity around Sadr by Tom Howard, Crawley, Sussex, UK. Equipment: Nikon D7000, Teleskop Service 65mm refractor, EQ6 mount.Cygnus plus Nebulosity by William Hughes, Doncaster, UK. Equipment: Modified Canon 600D, Samyang 35mm, Polarie tracking mount.Cygnus Widefield by Andrew Gray, Northumberland, UK. Equipment: Starlight Express 649 mono, Baader filters, Canon 28-70mm lens, NEQ6.Cygnus by Martin Bailey, Gnosall, Staffordshire, UK. Equipment: Modded Canon 600D, Astronomik CLS CCD clip filter, Canon ef 50mm, Celestron Advance VX mount, IMGOH CCD, 50mm scope.Portrait of the Cygni Nebula Region. A five Panel Mosaic in Narrowband by Paul C. Swift, Valencia, Spain. Equipment: Vixen VSD100 f/3.8 Astrograph, Starlight Express SXVR-H18, Vixen VSD, sx loadstar, Baader Ha 8.5nm, Starlight Xpress USB filter wheel, Starlight Xpress Lodestar Guider, Baader Planetarium 36mm narrowband filtersCygnus Wide-Field by David Slack, Prudhoe, UK. Equipment: Canon 1000D, Tamron 55-200 zoom lens, Astronomik CLS clip filter, HEQ5 pro mount.Unfolding Space by Paul C Swift, Spain, Valencia. Equipment: Starlight Xpress SX-814 Trius, Vixen VSD, Ha 3nm x OIII 3nm SII 3nmCygnus Red Nebulas by Rafael Compassi, Presidente Lucena, Brasil. Equipment: Canon T1i, 50mm Lens, IDAS HEUIB-II Filter, Star AdventurerTickled Pink by Stephen Nickolls, Coverack, Cornwall, UK. Equipment: SkyWatcher Star Adventurer mount, Canon 600D, a Samyang 135mm f/2 ED UMC lens, BYEOS.Cygnus Region by Kevin Stewart, Alnwick, Northumberland, UK. Equipment: Modded Canon 1100d, 50mm lens @f4, iOptron SkytrackerRegion Gamma Cyg by Mario Richter, Finsterwalde, Germany. Equipment: Canon 350d, Objektiv 200mm