Menu

NGC 2057 — Open Cluster in Mensa

Open Cluster Fair (29/100)
Magnitude 12.2m OpenCluster Mensa (Men) Visible
Star Map
+ List + Plan Star Hop

Observe

1Properties

Magnitude 12.17
Angular Size 1.3′ × 1.2′
Position Angle 20°
pF, S, R, gbM, 3rd of 7

Position & Identifiers

RA 05h 36m 55.1s
Dec -70° 16' 08.0"
Constellation Mensa (Men)
Catalog NGC 2057

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. Hard V. hard+ V. hard
150mm Newt. Medium Hard+ Hard
C8 203mm Medium+ Medium Hard+
Easy Medium Hard Very hard Impossible

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

Medium 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 2057 · 1.3′ 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.

NGC 2065
Medium+
Open cluster
Open Cluster mag 11.0 0.1° Mensa
NGC 2058
Hard+
Open cluster
Open Cluster mag 12.0 0.1° Mensa
NGC 2038
Hard+
Open cluster
Open Cluster mag 11.92 0.3° Mensa
NGC 2056
Medium
Open cluster
Open Cluster mag 11.77 0.4° Mensa
NGC 2019
Medium+
Compact globular cluster
Globular Cluster mag 11.0 0.4° Mensa
NGC 2018
Medium
Emission nebula — try an OIII filter
Emission Nebula mag 10.89 0.9° Mensa
NGC 2069
Medium+
Diffuse nebula
Diffuse Nebula mag 10.10 1.3° Dorado
Show on Map

Explore Nightbase

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

The Life of Stars
From birth in a nebula to spectacular death — how stars are born, shine, swell, and die, and how to read the clues in their starlight.
Article
Mensa
Mythology, bright stars, and deep-sky highlights.
Constellation
Mars
Polar caps, dust storms, and observing its oppositions.
Deep dive
}