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NS Puppis — Star in Puppis

Star Puppis (Pup) Visible
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1Physical Properties

Magnitude 4.45
Range 4.40 - 4.46
Variable Type LC
Spectral Type K3Ib
Star Color Red (B-V 1.62)

2Position & Identifiers

RA 08h 11m 21.5s
Dec -39° 37' 07.0"
Constellation Puppis (Pup)
HR 3225
HIP 40091
HD 68553
Variable ID NS Pup
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium Medium
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 Dec – Feb (peak: Jan)

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6

Size Comparison

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7

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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

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14Stellar Notes

Lc 4.4 - 4.5V.

Survey Image

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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.

Suhail Hadar
HIP 39429; Zeta Puppis
Easy
Hot blue O-type star
Star mag 2.25 1.5° Puppis
NGC 2546
Easy
Rich open cluster
Open Cluster mag 6.3 2.0° Puppis
V336 Pup
Easy
Colorful double, sep 26.5″
Double Star mag 5.52 2.4° Puppis
AH Vel
Hard+
Pulsating variable, period 4.2d
Variable Star mag 5.76 7.0° Vela
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