Europe
Asia
Oceania
Americas
Africa
DEEP SKY CHALLENGE
This is the perfect time to swing your te
Our first target is the Little Pinwheel Galaxy, NGC 3184, positioned 48 arcminutes west of mag. +3.0 Tania Australis (Mu (μ) Ursae Majoris). This spiral galaxy has an apparent magnitude of +10.1 but i
The spring sky is heavy with galaxies. As the stars of winter rotate westward, they drag the winter Milky Way with them, leaving us to gaze out into deep space at right angles to the plane of our home
Just north of mag. +3.9 Asellus Australis (Delta (δ) Cancri), you’ll spot a ‘little cloud’, which is what ‘Nephelion’, M44’s ancient Greek name, means. At only 577 lightyears away, M44 (also known as
HUBBLE SPACE TELESCOPE, 22 DECEMBER 2025 Spiral galaxies MCG-02-05-050 (right) and -050a (left) are together known as Arp 4. That means they feature in Halton Arp's Atlas of Peculiar Galaxies, compile
Ron Brecher, Guelph, Ontario, Canada, 22 November 2025 Ron says: “I used a colour camera and two Optolong filters to capture SII, Ha and OIII emissions, then processed them in the Foraxx palette. I’m
1 Sunday Ganymede disappears into Jupiter’s shadow at 19:48 UT, reappearing again at 23:11 UT. 5 ◀ Thursday From now until 26 March is the optimum time for this month’s Deep-Sky Tour (page 56) of obje