Galaxy
NGC 5248
Spiral galaxy · C45 · NGC 5248
Spiral galaxy in Boötes
Photo: Credit Line and Copyright Adam Block/Mount Lemmon SkyCenter/University of Arizona · CC BY-SA 3.0 us · Wikimedia Commons
NGC 5248 is a compact intermediate spiral galaxy in the constellation Boötes. Its velocity with respect to the cosmic microwave background is 1437 ± 20 km/s, which corresponds to a Hubble distance of 69.1 ± 4.9 Mly (21.19 ± 1.51 Mpc). However, 17 non redshift measurements give a much closer distance of 42.52 ± 3.16 Mly (13.038 ± 0.969 Mpc). It was discovered on 15 April 1784 by German-British astronomer William Herschel.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~74 million light-years
Apparent mag.
+10.2
Apparent size
4.1′ × 2.4′
Best seen with
Telescope
Catalogue
C45 · NGC 5248
Did you know
- Listed as Caldwell 45 in the Caldwell catalogue, also known as NGC 5248.
- Found in the constellation Boötes.
- Needs a telescope to see clearly.
