Winnecke 4 (M40) is a double star object of interest in space. It lies at a distance of 510 light years away in the constellation of Ursa Major. It is referred to as M(40) when it was catalogued by Charles Messier in 18th - 19th Century France. Winnecke 4 (M40) was discovered in 1764 by Charles Messier. The Double Star's location is 12:22.4 (R.A.) and +58:05 (Dec.). Its Visual Brightness is a 8.4 Magnitude and has an apparent magnitude of 10 with an apparent dimension of 0.8 . The object can not be seen by the naked eye, you need a telescope to see it.
|Name||Winnecke 4 (M40)|
|Naked Eye Visible||Requires a 7x50 Binoculars - Magnitudes|
|Year of Discovery||1764|