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Winnecke 4 (M40) Facts

Winnecke 4 (M40) is a star cluster (double star) object of interest in space. It lies at a distance of about 510.00 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 Star Cluster (Double Star)'s location is 12:22.4 (R.A.) and +58:05 (Dec.). Its Visual (Apparent) Brightness is 10.00 Magnitude with an apparent dimension of 0.8 . The object can not be seen by the naked eye from Earth, you need a telescope to see it.

Travel Time to Winnecke 4 (M40)

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Walking485,503,620,197.50
Car1202,850,120,673.25
Airbus A380736464,693,588.03
Speed of Sound (Mach 1)767.269445,755,635.62
Concorde (Mach 2)1,534.54222,877,527.33
New Horizons Probe33,00010,364,075.18
Speed of Light670,616,629.00510.00

Fact File


NameWinnecke 4 (M40)
TypeStar Cluster (Double Star)
Messier Id40
ConstellationUrsa Major
Right Ascension12:22.4
Declination+58:05
Distance (Lt.Yr)510
Apparent Dimension0.8
Visual / Apparent Magnitude10.00
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Year of Discovery1764
DiscovererCharles Messier


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