NGC 1987 — Globular Cluster in Mensa
Modest (18/100)
Observe
1Properties
Magnitude
12.0
Angular Size
1.7′
Position Angle
90°
F, L, iR, 3 st p
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Position & Identifiers
2How easy to spot?
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard+ | V. hard+ | V. hard |
| 150 mm Newton 150mm Newt. | Medium | Hard+ | Hard |
| Celestron C8 (203 mm SCT) 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
125x
TFOV: 0.4°
Lim. mag: 13.6
NGC 1987 · 1.7′ diameter · N up, E left
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 2010
Open cluster
Open Cluster
mag 11.72
0.3°
Mensa
NGC 2018
Emission nebula — try an OIII filter
Emission Nebula
mag 10.89
0.5°
Mensa
NGC 2019
Compact globular cluster
Globular Cluster
mag 11.0
0.7°
Mensa
NGC 1898
Compact globular cluster
Globular Cluster
mag 11.0
1.4°
Dorado
NGC 2121
Compact globular cluster
Globular Cluster
mag 11.2
1.8°
Mensa
NGC 1953
Compact globular cluster
Globular Cluster
mag 11.74
1.9°
Dorado
NGC 2069
Diffuse nebula
Diffuse Nebula
mag 10.10
2.0°
Dorado
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