Menu

NGC 1857 — Open Cluster in Auriga

Open Cluster Good (51/100)
Magnitude 7.0m OpenCluster Auriga (Aur) Visible
Star Map
+ List + Plan Star Hop

Observe

1Properties

Magnitude 7.0
Angular Size 4.5′
Cl, pRi, pC, st 7...

Position & Identifiers

RA 05h 20m 05.6s
Dec +39° 20' 37.0"
Constellation Auriga (Aur)
Catalog NGC 1857

2How easy to spot?

Sign in and configure your equipment and default location to see a personalized row.
Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Easy
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Easy on Seestar S50

3Visibility

Set a location in User Settings to see visibility data.

Best season Nov – Jan (peak: Dec)

4 Eyepiece View

Log in to set your own equipment
125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 1857 · 4.5′ diameter

5 Best Magnification

Explore

6 Classification Decoder

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

Collinder 62
Easy
Open cluster
Open Cluster mag 4.2 1.8° Auriga
NGC 1778
Easy
Open cluster
Open Cluster mag 7.7 3.3° Auriga
M38
Starfish Cluster
Easy
Open cluster
Open Cluster mag 7.4 3.9° Auriga
NGC 1907
Easy
Open cluster
Open Cluster mag 8.2 4.3° Auriga
17 Aur
Medium
Eclipsing binary, period 4.1d
Variable Star mag 6.14 5.6° Auriga
Show on Map

Explore Nightbase

Related knowledge, tools, and stories — no observation planning required.

The Hertzsprung-Russell Diagram — Reading Stars Like a Map
The HR diagram turns the night sky into a physics map: every named star has a spot, every spot tells you mass, age, and fate. A guide for amateur observers.
Article
Auriga
Mythology, bright stars, and deep-sky highlights.
Constellation
Mars
Polar caps, dust storms, and observing its oppositions.
Deep dive
}