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Nu Horologii — Star in Horologium

Magnitude 5.3m Star Horologium (Hor) Visible
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Observe

1Physical Properties

Magnitude 5.26
Spectral Type A2V
Star Color White (B-V 0.10)
Distance 3,262 ly

2Position & Identifiers

RA 02h 49m 01.5s
Dec -62° 48' 24.0"
Constellation Horologium (Hor)
HR 852
HIP 13141
HD 17848
SAO 248656
Bayer Nu
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium Hard+ Hard
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

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

4Visibility

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Best season Sep – Nov (peak: Oct)

5Survey Image

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Explore

6

Size Comparison

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7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

13

Stellar Fusion

Discover

14

Light Travel Time Machine

15

Relativistic Travel

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.

Zeta Ret
HIP 15371; Zeta2 Reticuli
Easy
Easy double, sep 309.1″
Double Star mag 5.24 3.4° Reticulum
NGC 1246
Hard
Elliptical galaxy
Galaxy mag 13.04 4.5° Horologium
TW Hor
Hard+
Semi-regular variable, range 5.5–6.0
Variable Star mag 5.74 6.2° Horologium
C87
NGC 1261
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 8.4 8.2° Horologium
Show on Map

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