NGC 1857

Scientific overview

NGC 1857 is an open cluster in the constellation Auriga. It shines at apparent magnitude 7 and spans about 4.5 arcminutes of sky.

Difficulty

Binoculars

Recommended equipment

10×50 binoculars or any small telescope

Best observed

Winter (N. evening sky)

Best hemisphere

Northern

Guidance follows standard observing practice, derived from the object's real magnitude and position. A dark, moonless sky always helps.

RA / Dec

5.3349h / 39.3436°

Hemisphere

Northern

Season

Winter

Object	Type	Mag	Size (′)
NGC 2281NGC 2281	Open cluster	5.4	10.8
M 37M 37 · NGC 2099	Open cluster	5.6	11.4
M 36M 36 · NGC 1960	Open cluster	6	7.2
M 38M 38 · NGC 1912	Open cluster	6.4	9.6
NGC 1893NGC 1893	Open cluster	7.5	6
NGC 1664NGC 1664	Open cluster	7.6	11.4
NGC 1778NGC 1778	Open cluster	7.7	4.5
NGC 1907NGC 1907	Open cluster	8.2	5.4

Facts on this topic will be cited from these primary and reference sources.

OpenNGCOpenNGC (M. Verga) — NGC/IC, Messier, and Caldwell catalogue data
Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.

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