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Tau Lupi — Star in Lupus

HIP 70576; Tau2 Lupi

Star Lupus (Lup) Visible
Star Map
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1Physical Properties

Magnitude 4.35
Spectral Type F4IV+A7:
Star Color Yellow-white (B-V 0.43)
Distance 1,631 ly

2Position & Identifiers

RA 14h 26m 10.8s
Dec -45° 22' 46.0"
Constellation Lupus (Lup)
HR 5396
HIP 70576
HD 126354
Bayer Tau2
SIMBAD Wikipedia

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 Mar – May (peak: Apr)

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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

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14Stellar Notes

Binary. Combined mag., colors.
3043d.
15

Light Travel Time Machine

16

Relativistic Travel

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.

Tau Lup
HIP 70574; Tau1 Lupi
Easy
Easy double, sep 156.7″
Double Star mag 4.56 0.2° Lupus
NGC 5530
Hard+
Bright spiral galaxy
Galaxy mag 12.0 2.4° Lupus
Alpha Lup
Easy
Bright naked-eye star, mag 2.3
Star mag 2.30 3.4° Lupus
Eta Cen
Easy
Bright naked-eye star, mag 2.3
Star mag 2.31 3.6° Centaurus
NGC 5460
Easy
Rich open cluster
Open Cluster mag 5.6 4.3° Centaurus
C84
NGC 5286
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 7.6 8.9° Centaurus
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