BBC Sky at Night

DEEP-SKY TOUR

1 NGC 864

NGC 864 is an intermediate spiral galaxy located 5.1° west and 0.3° north of mag. +4.8 Nu (ν) Ceti. It shines with an integrated magnitude of +11.0 but is virtually face-on to us, so its surface brightness is low. Lightpolluted or less than pristine skies will hide it well, as will a lack of dark adaptation. Its inner core appears 2 x 1.5 arcminutes across, but the outer halo in which the galaxy's spiral

You’re reading a preview, subscribe to read more.

More from BBC Sky at Night

BBC Sky at Night5 min read
Surfing Spacetime With LISA
In September 2015, some of the most sensitive instruments ever built made a remarkable discovery: the first-ever detection of tiny ripples in space and time, known as gravitational waves. Created by a pair of black holes spiralling towards each other
BBC Sky at Night5 min read
Sky-Watcher EQ-AL55i Pro Wi-Fi mount
∙ Price £779 ∙ Mount type Equatorial with Go-To ∙ Load capacity 10kg ∙ Slew speed Up to 4° per second ∙ Power input 12V DC ∙ Autoguider port ST4 ∙ Protocols SynScan, ASCOM via Wi-Fi or USB ∙ Weight 14.8kg ∙ Supplier Optical Vision Ltd ∙ Email info@op
BBC Sky at Night1 min read
Dark Stars Could Leave Scars Across The Cosmos
The scars left behind by exploding ‘dark stars’ could allow astronomers to examine the invisible Universe, a new study has found. Dark matter is the invisible substance believed to suffuse the entire Universe – though as we can only detect it through

Related Books & Audiobooks