Deep-sky object
Winnecke 4
Winnecke 4 is an optical double 510 light-years away, in Ursa Major, seen as it was 510 years ago.
See it live
It is on the live 3D map, where it really is.
Key facts
- Type
- Optical Double
- Constellation
- Ursa Major
- Distance
- 510 light-years
- Brightness from Earth
- magnitude 8.0
- Catalogue
- M40, M040
See it from here
Too faint for the eye; a telescope, or a long photograph, shows it.
How the map draws it
Drawn as a soft glow in the manner of its kind at its measured distance, as wide as it measures; the pattern in it is illustrative and its true shape is not drawn — the kind of thing, not this exact one.